annotate decoders/libmpg123/libmpg123.c @ 584:2e5e01679f32

Minor changes to mpg123.c to compile with Visual Studio and modern mpg123.c instead of bundled version.
author Eric Wing <ewing@anscamobile.com>
date Wed, 27 Apr 2011 19:13:29 -0700
parents 7e08477b0fc1
children
rev   line source
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1 /*
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2 libmpg123: MPEG Audio Decoder library
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3
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4 copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1
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5 see COPYING and AUTHORS files in distribution or http://mpg123.org
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6
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7 */
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8
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9 #include "mpg123lib_intern.h"
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10 #include "icy2utf8.h"
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11 #include "getbits.h"
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12 #include "debug.h"
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13
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14 #ifdef GAPLESS
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15 #define SAMPLE_ADJUST(x) ((x) - ((mh->p.flags & MPG123_GAPLESS) ? mh->begin_os : 0))
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16 #define SAMPLE_UNADJUST(x) ((x) + ((mh->p.flags & MPG123_GAPLESS) ? mh->begin_os : 0))
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17 #else
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18 #define SAMPLE_ADJUST(x) (x)
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19 #define SAMPLE_UNADJUST(x) (x)
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20 #endif
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21
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22 #define SEEKFRAME(mh) ((mh)->ignoreframe < 0 ? 0 : (mh)->ignoreframe)
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23
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24 static int initialized = 0;
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25
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26 #define ALIGNCHECK(mh)
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27 #define ALIGNCHECKK
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28 /* On compilers that support data alignment but not the automatic stack realignment.
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29 We check for properly aligned stack before risking a crash because of badly compiled
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30 client program. */
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31 #if (defined CCALIGN) && (defined NEED_ALIGNCHECK) && ((defined DEBUG) || (defined CHECK_ALIGN))
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32
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33 /* Common building block. */
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34 #define ALIGNMAINPART \
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35 /* minimum size of 16 bytes, not all compilers would align a smaller piece of data */ \
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36 double ALIGNED(16) altest[2]; \
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37 debug2("testing alignment, with %lu %% 16 = %lu", \
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38 (unsigned long)altest, (unsigned long)((size_t)altest % 16)); \
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39 if((size_t)altest % 16 != 0)
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40
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41 #undef ALIGNCHECK
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42 #define ALIGNCHECK(mh) \
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43 ALIGNMAINPART \
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44 { \
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45 error("Stack variable is not aligned! Your combination of compiler/library is dangerous!"); \
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46 if(mh != NULL) mh->err = MPG123_BAD_ALIGN; \
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47 \
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48 return MPG123_ERR; \
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49 }
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50 #undef ALIGNCHECKK
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51 #define ALIGNCHECKK \
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52 ALIGNMAINPART \
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53 { \
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54 error("Stack variable is not aligned! Your combination of compiler/library is dangerous!"); \
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55 return MPG123_BAD_ALIGN; \
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56 }
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57
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58 #endif
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59
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60
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61 #ifdef GAPLESS
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62 /*
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63 Take the buffer after a frame decode (strictly: it is the data from frame fr->num!) and cut samples out.
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64 fr->buffer.fill may then be smaller than before...
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65 */
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66 static void frame_buffercheck(mpg123_handle *fr)
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67 {
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68 /* When we have no accurate position, gapless code does not make sense. */
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69 if(!fr->accurate) return;
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70
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71 /* The first interesting frame: Skip some leading samples. */
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72 if(fr->firstoff && fr->num == fr->firstframe)
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73 {
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74 off_t byteoff = samples_to_bytes(fr, fr->firstoff);
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75 if(fr->buffer.fill > byteoff)
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76 {
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77 fr->buffer.fill -= byteoff;
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78 /* buffer.p != buffer.data only for own buffer */
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79 debug6("cutting %li samples/%li bytes on begin, own_buffer=%i at %p=%p, buf[1]=%i",
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80 (long)fr->firstoff, (long)byteoff, fr->own_buffer, (void*)fr->buffer.p, (void*)fr->buffer.data, ((short*)fr->buffer.p)[2]);
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81 if(fr->own_buffer) fr->buffer.p = fr->buffer.data + byteoff;
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82 else memmove(fr->buffer.data, fr->buffer.data + byteoff, fr->buffer.fill);
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83 debug3("done cutting, buffer at %p =? %p, buf[1]=%i",
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84 (void*)fr->buffer.p, (void*)fr->buffer.data, ((short*)fr->buffer.p)[2]);
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85 }
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86 else fr->buffer.fill = 0;
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87 fr->firstoff = 0; /* Only enter here once... when you seek, firstoff should be reset. */
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88 }
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89 /* The last interesting (planned) frame: Only use some leading samples. */
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90 if(fr->lastoff && fr->num == fr->lastframe)
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91 {
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92 off_t byteoff = samples_to_bytes(fr, fr->lastoff);
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93 if(fr->buffer.fill > byteoff)
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94 {
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95 fr->buffer.fill = byteoff;
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96 }
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97 fr->lastoff = 0; /* Only enter here once... when you seek, lastoff should be reset. */
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98 }
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99 }
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100 #endif
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101
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102
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103 int attribute_align_arg mpg123_init(void)
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104 {
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105 ALIGNCHECKK
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106 if((sizeof(short) != 2) || (sizeof(long) < 4)) return MPG123_BAD_TYPES;
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107
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108 init_layer2(); /* inits also shared tables with layer1 */
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109 init_layer3();
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110 #ifndef OPT_MMX_ONLY
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111 prepare_decode_tables();
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112 #endif
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113 check_decoders();
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114 initialized = 1;
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115 return MPG123_OK;
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116 }
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117
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118 void attribute_align_arg mpg123_exit(void)
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119 {
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120 /* nothing yet, but something later perhaps */
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121 if(initialized) return;
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122 }
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123
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124 /* create a new handle with specified decoder, decoder can be "", "auto" or NULL for auto-detection */
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125 mpg123_handle attribute_align_arg *mpg123_new(const char* decoder, int *error)
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126 {
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127 return mpg123_parnew(NULL, decoder, error);
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128 }
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129
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130 /* ...the full routine with optional initial parameters to override defaults. */
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131 mpg123_handle attribute_align_arg *mpg123_parnew(mpg123_pars *mp, const char* decoder, int *error)
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132 {
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133 mpg123_handle *fr = NULL;
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134 int err = MPG123_OK;
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135 #ifdef DEBUG
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136 #ifdef CCALIGN
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137 double ALIGNED(16) altest[4];
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138 if(((size_t)altest) % 16 != 0)
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139 {
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140 error("Stack variable is not aligned! Your combination of compiler/library is dangerous!");
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141 *error = MPG123_BAD_ALIGN;
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142 return NULL;
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143 }
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144 #endif
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145 #endif
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146 if(initialized) fr = (mpg123_handle*) malloc(sizeof(mpg123_handle));
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147 else err = MPG123_NOT_INITIALIZED;
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148 if(fr != NULL)
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149 {
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150 frame_init_par(fr, mp);
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151 debug("cpu opt setting");
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152 if(frame_cpu_opt(fr, decoder) != 1)
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153 {
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154 err = MPG123_BAD_DECODER;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
155 frame_exit(fr);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
156 free(fr);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
157 fr = NULL;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
158 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
159 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
160 if(fr != NULL)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
161 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
162 if((frame_outbuffer(fr) != 0) || (frame_buffers(fr) != 0))
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
163 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
164 err = MPG123_NO_BUFFERS;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
165 frame_exit(fr);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
166 free(fr);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
167 fr = NULL;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
168 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
169 else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
170 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
171 opt_make_decode_tables(fr);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
172 fr->decoder_change = 1;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
173 /* happening on frame change instead:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
174 init_layer3_stuff(fr);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
175 init_layer2_stuff(fr); */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
176 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
177 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
178 else if(err == MPG123_OK) err = MPG123_OUT_OF_MEM;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
179
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
180 if(error != NULL) *error = err;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
181 return fr;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
182 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
183
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
184 int attribute_align_arg mpg123_decoder(mpg123_handle *mh, const char* decoder)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
185 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
186 enum optdec dt = dectype(decoder);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
187 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
188 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
189
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
190 if(dt == nodec)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
191 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
192 mh->err = MPG123_BAD_DECODER;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
193 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
194 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
195 if(dt == mh->cpu_opts.type) return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
196
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
197 /* Now really change. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
198 /* frame_exit(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
199 frame_init(mh); */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
200 debug("cpu opt setting");
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
201 if(frame_cpu_opt(mh, decoder) != 1)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
202 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
203 mh->err = MPG123_BAD_DECODER;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
204 frame_exit(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
205 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
206 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
207 /* New buffers for decoder are created in frame_buffers() */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
208 if((frame_outbuffer(mh) != 0) || (frame_buffers(mh) != 0))
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
209 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
210 mh->err = MPG123_NO_BUFFERS;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
211 frame_exit(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
212 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
213 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
214 opt_make_decode_tables(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
215 mh->decoder_change = 1;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
216 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
217 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
218
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
219 int attribute_align_arg mpg123_param(mpg123_handle *mh, enum mpg123_parms key, long val, double fval)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
220 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
221 int r;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
222 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
223 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
224 r = mpg123_par(&mh->p, key, val, fval);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
225 if(r != MPG123_OK){ mh->err = r; r = MPG123_ERR; }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
226 else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
227 { /* Special treatment for some settings. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
228 #ifdef FRAME_INDEX
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
229 if(key == MPG123_INDEX_SIZE)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
230 { /* Apply frame index size and grow property on the fly. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
231 r = frame_index_setup(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
232 if(r != MPG123_OK) mh->err = MPG123_INDEX_FAIL;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
233 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
234 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
235 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
236 return r;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
237 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
238
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
239 int attribute_align_arg mpg123_par(mpg123_pars *mp, enum mpg123_parms key, long val, double fval)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
240 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
241 int ret = MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
242 ALIGNCHECKK
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
243 if(mp == NULL) return MPG123_BAD_PARS;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
244 switch(key)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
245 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
246 case MPG123_VERBOSE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
247 mp->verbose = val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
248 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
249 case MPG123_FLAGS:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
250 #ifndef GAPLESS
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
251 if(val & MPG123_GAPLESS) ret = MPG123_NO_GAPLESS;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
252 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
253 #ifdef FLOATOUT
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
254 if(val & MPG123_FORCE_8BIT) ret = MPG123_NO_8BIT;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
255 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
256 if(ret == MPG123_OK) mp->flags = val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
257 debug1("set flags to 0x%lx", (unsigned long) mp->flags);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
258 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
259 case MPG123_ADD_FLAGS:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
260 #ifndef GAPLESS
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
261 /* Enabling of gapless mode doesn't work when it's not there, but disabling (below) is no problem. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
262 if(val & MPG123_GAPLESS) ret = MPG123_NO_GAPLESS;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
263 else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
264 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
265 mp->flags |= val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
266 debug1("set flags to 0x%lx", (unsigned long) mp->flags);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
267 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
268 case MPG123_REMOVE_FLAGS:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
269 mp->flags &= ~val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
270 debug1("set flags to 0x%lx", (unsigned long) mp->flags);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
271 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
272 case MPG123_FORCE_RATE: /* should this trigger something? */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
273 if(val > 96000) ret = MPG123_BAD_RATE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
274 else mp->force_rate = val < 0 ? 0 : val; /* >0 means enable, 0 disable */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
275 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
276 case MPG123_DOWN_SAMPLE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
277 if(val < 0 || val > 2) ret = MPG123_BAD_RATE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
278 else mp->down_sample = (int)val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
279 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
280 case MPG123_RVA:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
281 if(val < 0 || val > MPG123_RVA_MAX) ret = MPG123_BAD_RVA;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
282 else mp->rva = (int)val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
283 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
284 case MPG123_DOWNSPEED:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
285 mp->halfspeed = val < 0 ? 0 : val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
286 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
287 case MPG123_UPSPEED:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
288 mp->doublespeed = val < 0 ? 0 : val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
289 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
290 case MPG123_ICY_INTERVAL:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
291 mp->icy_interval = val > 0 ? val : 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
292 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
293 case MPG123_OUTSCALE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
294 #ifdef FLOATOUT
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
295 mp->outscale = fval;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
296 #else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
297 mp->outscale = val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
298 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
299 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
300 case MPG123_TIMEOUT:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
301 #ifndef WIN32
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
302 mp->timeout = val >= 0 ? val : 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
303 #else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
304 ret = MPG123_NO_TIMEOUT;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
305 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
306 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
307 case MPG123_RESYNC_LIMIT:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
308 mp->resync_limit = val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
309 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
310 case MPG123_INDEX_SIZE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
311 #ifdef FRAME_INDEX
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
312 mp->index_size = val;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
313 #else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
314 ret = MPG123_NO_INDEX;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
315 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
316 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
317 default:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
318 ret = MPG123_BAD_PARAM;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
319 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
320 return ret;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
321 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
322
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
323 int attribute_align_arg mpg123_getparam(mpg123_handle *mh, enum mpg123_parms key, long *val, double *fval)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
324 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
325 int r;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
326 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
327 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
328 r = mpg123_getpar(&mh->p, key, val, fval);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
329 if(r != MPG123_OK){ mh->err = r; r = MPG123_ERR; }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
330 return r;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
331 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
332
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
333 int attribute_align_arg mpg123_getpar(mpg123_pars *mp, enum mpg123_parms key, long *val, double *fval)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
334 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
335 int ret = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
336 ALIGNCHECKK
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
337 if(mp == NULL) return MPG123_BAD_PARS;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
338 switch(key)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
339 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
340 case MPG123_VERBOSE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
341 if(val) *val = mp->verbose;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
342 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
343 case MPG123_FLAGS:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
344 case MPG123_ADD_FLAGS:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
345 if(val) *val = mp->flags;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
346 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
347 case MPG123_FORCE_RATE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
348 if(val) *val = mp->force_rate;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
349 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
350 case MPG123_DOWN_SAMPLE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
351 if(val) *val = mp->down_sample;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
352 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
353 case MPG123_RVA:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
354 if(val) *val = mp->rva;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
355 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
356 case MPG123_DOWNSPEED:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
357 if(val) *val = mp->halfspeed;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
358 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
359 case MPG123_UPSPEED:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
360 if(val) *val = mp->doublespeed;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
361 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
362 case MPG123_ICY_INTERVAL:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
363 if(val) *val = (long)mp->icy_interval;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
364 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
365 case MPG123_OUTSCALE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
366 #ifdef FLOATOUT
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
367 if(fval) *fval = mp->outscale;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
368 #else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
369 if(val) *val = mp->outscale;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
370 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
371 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
372 case MPG123_RESYNC_LIMIT:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
373 if(val) *val = mp->resync_limit;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
374 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
375 default:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
376 ret = MPG123_BAD_PARAM;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
377 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
378 return ret;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
379 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
380
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
381 int attribute_align_arg mpg123_getstate(mpg123_handle *mh, enum mpg123_state key, long *val, double *fval)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
382 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
383 int ret = MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
384 long theval = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
385 double thefval = 0.;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
386 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
387 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
388
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
389 switch(key)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
390 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
391 case MPG123_ACCURATE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
392 theval = mh->accurate;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
393 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
394 default:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
395 mh->err = MPG123_BAD_KEY;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
396 ret = MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
397 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
398
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
399 if(val != NULL) *val = theval;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
400 if(fval != NULL) *fval = thefval;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
401
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
402 return ret;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
403 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
404
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
405 int attribute_align_arg mpg123_eq(mpg123_handle *mh, enum mpg123_channels channel, int band, double val)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
406 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
407 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
408 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
409 if(band < 0 || band > 31){ mh->err = MPG123_BAD_BAND; return MPG123_ERR; }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
410 switch(channel)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
411 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
412 case MPG123_LEFT|MPG123_RIGHT:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
413 mh->equalizer[0][band] = mh->equalizer[1][band] = DOUBLE_TO_REAL(val);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
414 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
415 case MPG123_LEFT: mh->equalizer[0][band] = DOUBLE_TO_REAL(val); break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
416 case MPG123_RIGHT: mh->equalizer[1][band] = DOUBLE_TO_REAL(val); break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
417 default:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
418 mh->err=MPG123_BAD_CHANNEL;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
419 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
420 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
421 mh->have_eq_settings = TRUE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
422 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
423 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
424
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
425 double attribute_align_arg mpg123_geteq(mpg123_handle *mh, enum mpg123_channels channel, int band)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
426 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
427 double ret = 0.;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
428 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
429 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
430
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
431 /* Handle this gracefully. When there is no band, it has no volume. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
432 if(band > -1 && band < 32)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
433 switch(channel)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
434 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
435 case MPG123_LEFT|MPG123_RIGHT:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
436 ret = 0.5*(REAL_TO_DOUBLE(mh->equalizer[0][band])+REAL_TO_DOUBLE(mh->equalizer[1][band]));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
437 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
438 case MPG123_LEFT: ret = REAL_TO_DOUBLE(mh->equalizer[0][band]); break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
439 case MPG123_RIGHT: ret = REAL_TO_DOUBLE(mh->equalizer[1][band]); break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
440 /* Default case is already handled: ret = 0 */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
441 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
442
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
443 return ret;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
444 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
445
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
446
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
447 /* plain file access, no http! */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
448 int attribute_align_arg mpg123_open(mpg123_handle *mh, const char *path)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
449 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
450 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
451 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
452
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
453 mpg123_close(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
454 frame_reset(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
455 return open_stream(mh, path, -1);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
456 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
457
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
458 int attribute_align_arg mpg123_open_fd(mpg123_handle *mh, int fd)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
459 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
460 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
461 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
462
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
463 mpg123_close(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
464 frame_reset(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
465 return open_stream(mh, NULL, fd);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
466 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
467
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
468 int attribute_align_arg mpg123_open_feed(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
469 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
470 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
471 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
472
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
473 mpg123_close(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
474 frame_reset(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
475 return open_feed(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
476 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
477
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
478 int attribute_align_arg mpg123_replace_reader( mpg123_handle *mh,
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
479 ssize_t (*r_read) (int, void *, size_t),
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
480 off_t (*r_lseek)(int, off_t, int) )
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
481 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
482 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
483 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
484 mh->rdat.r_read = r_read;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
485 mh->rdat.r_lseek = r_lseek;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
486 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
487 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
488
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
489
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
490 int decode_update(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
491 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
492 long native_rate;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
493 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
494 native_rate = frame_freq(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
495 debug2("updating decoder structure with native rate %li and af.rate %li", native_rate, mh->af.rate);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
496 if(mh->af.rate == native_rate) mh->down_sample = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
497 else if(mh->af.rate == native_rate>>1) mh->down_sample = 1;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
498 else if(mh->af.rate == native_rate>>2) mh->down_sample = 2;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
499 else mh->down_sample = 3; /* flexible (fixed) rate */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
500 switch(mh->down_sample)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
501 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
502 case 0:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
503 case 1:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
504 case 2:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
505 mh->down_sample_sblimit = SBLIMIT>>(mh->down_sample);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
506 /* With downsampling I get less samples per frame */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
507 mh->outblock = sizeof(sample_t)*mh->af.channels*(spf(mh)>>mh->down_sample);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
508 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
509 case 3:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
510 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
511 if(synth_ntom_set_step(mh) != 0) return -1;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
512 if(frame_freq(mh) > mh->af.rate)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
513 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
514 mh->down_sample_sblimit = SBLIMIT * mh->af.rate;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
515 mh->down_sample_sblimit /= frame_freq(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
516 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
517 else mh->down_sample_sblimit = SBLIMIT;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
518 mh->outblock = sizeof(sample_t) * mh->af.channels *
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
519 ( ( NTOM_MUL-1+spf(mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
520 * (((size_t)NTOM_MUL*mh->af.rate)/frame_freq(mh))
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
521 )/NTOM_MUL );
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
522 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
523 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
524 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
525
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
526 if(!(mh->p.flags & MPG123_FORCE_MONO))
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
527 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
528 if(mh->af.channels == 1) mh->single = SINGLE_MIX;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
529 else mh->single = SINGLE_STEREO;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
530 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
531 else mh->single = (mh->p.flags & MPG123_FORCE_MONO)-1;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
532 if(set_synth_functions(mh) != 0) return -1;;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
533 init_layer3_stuff(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
534 init_layer2_stuff(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
535 do_rva(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
536 debug3("done updating decoder structure with native rate %li and af.rate %li and down_sample %i", frame_freq(mh), mh->af.rate, mh->down_sample);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
537
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
538 return 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
539 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
540
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
541 size_t attribute_align_arg mpg123_safe_buffer()
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
542 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
543 return sizeof(sample_t)*2*1152*NTOM_MAX;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
544 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
545
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
546 size_t attribute_align_arg mpg123_outblock(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
547 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
548 if(mh != NULL) return mh->outblock;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
549 else return mpg123_safe_buffer();
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
550 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
551
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
552 static int get_next_frame(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
553 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
554 int change = mh->decoder_change;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
555 do
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
556 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
557 int b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
558 /* Decode & discard some frame(s) before beginning. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
559 if(mh->to_ignore && mh->num < mh->firstframe && mh->num >= mh->ignoreframe)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
560 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
561 debug1("ignoring frame %li", (long)mh->num);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
562 /* Decoder structure must be current! decode_update has been called before... */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
563 (mh->do_layer)(mh); mh->buffer.fill = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
564 /* The ignored decoding may have failed. Make sure ntom stays consistent. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
565 if(mh->down_sample == 3) ntom_set_ntom(mh, mh->num+1);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
566
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
567 mh->to_ignore = mh->to_decode = FALSE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
568 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
569 /* Read new frame data; possibly breaking out here for MPG123_NEED_MORE. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
570 debug("read frame");
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
571 mh->to_decode = FALSE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
572 b = read_frame(mh); /* That sets to_decode only if a full frame was read. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
573 debug4("read of frame %li returned %i (to_decode=%i) at sample %li", (long)mh->num, b, mh->to_decode, (long)mpg123_tell(mh));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
574 if(b == MPG123_NEED_MORE) return MPG123_NEED_MORE; /* need another call with data */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
575 else if(b <= 0)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
576 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
577 /* More sophisticated error control? */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
578 if(b==0 || mh->rdat.filepos == mh->rdat.filelen)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
579 { /* We simply reached the end. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
580 mh->track_frames = mh->num + 1;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
581 return MPG123_DONE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
582 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
583 else return MPG123_ERR; /* Some real error. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
584 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
585 /* Now, there should be new data to decode ... and also possibly new stream properties */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
586 if(mh->header_change > 1)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
587 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
588 debug("big header change");
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
589 change = 1;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
590 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
591 } while(mh->num < mh->firstframe);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
592 /* When we start actually using the CRC, this could move into the loop... */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
593 /* A question of semantics ... should I fold start_frame and frame_number into firstframe/lastframe? */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
594 if(mh->lastframe >= 0 && mh->num > mh->lastframe)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
595 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
596 mh->to_decode = mh->to_ignore = FALSE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
597 return MPG123_DONE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
598 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
599 if(change)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
600 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
601 int b = frame_output_format(mh); /* Select the new output format based on given constraints. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
602 if(b < 0) return MPG123_ERR; /* not nice to fail here... perhaps once should add possibility to repeat this step */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
603 if(decode_update(mh) < 0) return MPG123_ERR; /* dito... */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
604 mh->decoder_change = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
605 if(b == 1) mh->new_format = 1; /* Store for later... */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
606 #ifdef GAPLESS
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
607 if(mh->fresh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
608 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
609 b=0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
610 /* Prepare offsets for gapless decoding. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
611 debug1("preparing gapless stuff with native rate %li", frame_freq(mh));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
612 frame_gapless_realinit(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
613 frame_set_frameseek(mh, mh->num);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
614 mh->fresh = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
615 /* Could this possibly happen? With a real big gapless offset... */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
616 if(mh->num < mh->firstframe) b = get_next_frame(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
617 if(b < 0) return b; /* Could be error, need for more, new format... */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
618 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
619 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
620 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
621 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
622 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
623
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
624 /*
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
625 Not part of the api. This just decodes the frame and fills missing bits with zeroes.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
626 There can be frames that are broken and thus make do_layer() fail.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
627 */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
628 void decode_the_frame(mpg123_handle *fr)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
629 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
630 size_t needed_bytes = samples_to_bytes(fr, frame_outs(fr, fr->num+1)-frame_outs(fr, fr->num));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
631
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
632 fr->clip += (fr->do_layer)(fr);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
633 /* There could be less data than promised. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
634 if(fr->buffer.fill < needed_bytes)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
635 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
636 if(NOQUIET) fprintf(stderr, "Note: broken frame %li, filling up with zeroes\n", (long)fr->num);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
637
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
638 /* One could do a loop with individual samples instead... but zero is zero. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
639 memset(fr->buffer.data + fr->buffer.fill, 0, needed_bytes - fr->buffer.fill);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
640 fr->buffer.fill = needed_bytes;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
641 /* ntom_val will be wrong when the decoding wasn't carried out completely */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
642 if(fr->down_sample == 3) ntom_set_ntom(fr, fr->num+1);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
643 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
644 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
645
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
646 /*
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
647 Put _one_ decoded frame into the frame structure's buffer, accessible at the location stored in <audio>, with <bytes> bytes available.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
648 The buffer contents will be lost on next call to mpg123_decode_frame.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
649 MPG123_OK -- successfully decoded the frame, you get your output data
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
650 MPg123_DONE -- This is it. End.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
651 MPG123_ERR -- some error occured...
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
652 MPG123_NEW_FORMAT -- new frame was read, it results in changed output format -> will be decoded on next call
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
653 MPG123_NEED_MORE -- that should not happen as this function is intended for in-library stream reader but if you force it...
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
654 MPG123_NO_SPACE -- not enough space in buffer for safe decoding, also should not happen
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
655
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
656 num will be updated to the last decoded frame number (may possibly _not_ increase, p.ex. when format changed).
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
657 */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
658 int attribute_align_arg mpg123_decode_frame(mpg123_handle *mh, off_t *num, unsigned char **audio, size_t *bytes)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
659 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
660 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
661 if(bytes != NULL) *bytes = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
662 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
663 if(mh->buffer.size < mh->outblock) return MPG123_NO_SPACE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
664 mh->buffer.fill = 0; /* always start fresh */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
665 while(TRUE)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
666 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
667 /* decode if possible */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
668 if(mh->to_decode)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
669 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
670 if(mh->new_format)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
671 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
672 mh->new_format = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
673 return MPG123_NEW_FORMAT;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
674 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
675 if(num != NULL) *num = mh->num;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
676 debug("decoding");
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
677
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
678 decode_the_frame(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
679
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
680 mh->to_decode = mh->to_ignore = FALSE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
681 mh->buffer.p = mh->buffer.data;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
682 #ifdef GAPLESS
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
683 /* This checks for individual samples to skip, for gapless mode or sample-accurate seek. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
684 frame_buffercheck(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
685 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
686 if(audio != NULL) *audio = mh->buffer.p;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
687 if(bytes != NULL) *bytes = mh->buffer.fill;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
688
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
689 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
690 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
691 else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
692 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
693 int b = get_next_frame(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
694 if(b < 0) return b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
695 debug1("got next frame, %i", mh->to_decode);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
696 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
697 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
698 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
699
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
700 int attribute_align_arg mpg123_read(mpg123_handle *mh, unsigned char *out, size_t size, size_t *done)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
701 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
702 return mpg123_decode(mh, NULL, 0, out, size, done);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
703 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
704
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
705 int attribute_align_arg mpg123_feed(mpg123_handle *mh, const unsigned char *in, size_t size)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
706 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
707 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
708 if(size > 0)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
709 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
710 if(in != NULL)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
711 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
712 if(feed_more(mh, in, size) != 0) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
713 else return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
714 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
715 else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
716 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
717 mh->err = MPG123_NULL_BUFFER;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
718 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
719 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
720 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
721 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
722 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
723
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
724 /*
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
725 The old picture:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
726 while(1) {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
727 len = read(0,buf,16384);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
728 if(len <= 0)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
729 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
730 ret = decodeMP3(&mp,buf,len,out,8192,&size);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
731 while(ret == MP3_OK) {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
732 write(1,out,size);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
733 ret = decodeMP3(&mp,NULL,0,out,8192,&size);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
734 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
735 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
736 */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
737
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
738 int attribute_align_arg mpg123_decode(mpg123_handle *mh, const unsigned char *inmemory, size_t inmemsize, unsigned char *outmemory, size_t outmemsize, size_t *done)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
739 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
740 int ret = MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
741 size_t mdone = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
742 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
743 if(done != NULL) *done = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
744 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
745 if(inmemsize > 0 && mpg123_feed(mh, inmemory, inmemsize) != MPG123_OK)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
746 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
747 ret = MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
748 goto decodeend;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
749 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
750 if(outmemory == NULL) outmemsize = 0; /* Not just give error, give chance to get a status message. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
751
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
752 while(ret == MPG123_OK)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
753 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
754 debug4("decode loop, fill %i (%li vs. %li); to_decode: %i", (int)mh->buffer.fill, (long)mh->num, (long)mh->firstframe, mh->to_decode);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
755 /* Decode a frame that has been read before.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
756 This only happens when buffer is empty! */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
757 if(mh->to_decode)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
758 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
759 if(mh->new_format)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
760 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
761 mh->new_format = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
762 return MPG123_NEW_FORMAT;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
763 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
764 if(mh->buffer.size - mh->buffer.fill < mh->outblock)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
765 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
766 ret = MPG123_NO_SPACE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
767 goto decodeend;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
768 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
769 decode_the_frame(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
770 mh->to_decode = mh->to_ignore = FALSE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
771 mh->buffer.p = mh->buffer.data;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
772 debug2("decoded frame %li, got %li samples in buffer", (long)mh->num, (long)(mh->buffer.fill / (samples_to_bytes(mh, 1))));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
773 #ifdef GAPLESS
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
774 frame_buffercheck(mh); /* Seek & gapless. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
775 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
776 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
777 if(mh->buffer.fill) /* Copy (part of) the decoded data to the caller's buffer. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
778 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
779 /* get what is needed - or just what is there */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
780 int a = mh->buffer.fill > (outmemsize - mdone) ? outmemsize - mdone : mh->buffer.fill;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
781 debug4("buffer fill: %i; copying %i (%i - %li)", (int)mh->buffer.fill, a, (int)outmemsize, (long)mdone);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
782 memcpy(outmemory, mh->buffer.p, a);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
783 /* less data in frame buffer, less needed, output pointer increase, more data given... */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
784 mh->buffer.fill -= a;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
785 outmemory += a;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
786 mdone += a;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
787 mh->buffer.p += a;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
788 if(!(outmemsize > mdone)) goto decodeend;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
789 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
790 else /* If we didn't have data, get a new frame. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
791 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
792 int b = get_next_frame(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
793 if(b < 0){ ret = b; goto decodeend; }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
794 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
795 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
796 decodeend:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
797 if(done != NULL) *done = mdone;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
798 return ret;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
799 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
800
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
801 long attribute_align_arg mpg123_clip(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
802 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
803 long ret = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
804 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
805 if(mh != NULL)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
806 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
807 ret = mh->clip;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
808 mh->clip = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
809 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
810 return ret;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
811 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
812
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
813 #define track_need_init(mh) (!(mh)->to_decode && (mh)->fresh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
814
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
815 static int init_track(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
816 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
817 if(track_need_init(mh))
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
818 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
819 /* Fresh track, need first frame for basic info. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
820 int b = get_next_frame(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
821 if(b < 0) return b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
822 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
823 return 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
824 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
825
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
826 int attribute_align_arg mpg123_getformat(mpg123_handle *mh, long *rate, int *channels, int *encoding)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
827 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
828 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
829 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
830 if(init_track(mh) == MPG123_ERR) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
831
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
832 if(rate != NULL) *rate = mh->af.rate;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
833 if(channels != NULL) *channels = mh->af.channels;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
834 if(encoding != NULL) *encoding = mh->af.encoding;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
835 mh->new_format = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
836 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
837 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
838
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
839 off_t attribute_align_arg mpg123_timeframe(mpg123_handle *mh, double seconds)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
840 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
841 off_t b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
842 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
843 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
844 b = init_track(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
845 if(b<0) return b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
846 return (off_t)(seconds/mpg123_tpf(mh));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
847 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
848
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
849 /*
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
850 Now, where are we? We need to know the last decoded frame... and what's left of it in buffer.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
851 The current frame number can mean the last decoded frame or the to-be-decoded frame.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
852 If mh->to_decode, then mh->num frames have been decoded, the frame mh->num now coming next.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
853 If not, we have the possibility of mh->num+1 frames being decoded or nothing at all.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
854 Then, there is firstframe...when we didn't reach it yet, then the next data will come from there.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
855 mh->num starts with -1
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
856 */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
857 off_t attribute_align_arg mpg123_tell(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
858 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
859 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
860 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
861 if(track_need_init(mh)) return 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
862 /* Now we have all the info at hand. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
863 debug5("tell: %li/%i first %li buffer %lu; frame_outs=%li", (long)mh->num, mh->to_decode, (long)mh->firstframe, (unsigned long)mh->buffer.fill, (long)frame_outs(mh, mh->num));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
864
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
865 { /* Funny block to keep C89 happy. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
866 off_t pos = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
867 if((mh->num < mh->firstframe) || (mh->num == mh->firstframe && mh->to_decode))
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
868 { /* We are at the beginning, expect output from firstframe on. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
869 pos = frame_outs(mh, mh->firstframe);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
870 #ifdef GAPLESS
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
871 pos += mh->firstoff;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
872 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
873 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
874 else if(mh->to_decode)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
875 { /* We start fresh with this frame. Buffer should be empty, but we make sure to count it in. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
876 pos = frame_outs(mh, mh->num) - bytes_to_samples(mh, mh->buffer.fill);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
877 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
878 else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
879 { /* We serve what we have in buffer and then the beginning of next frame... */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
880 pos = frame_outs(mh, mh->num+1) - bytes_to_samples(mh, mh->buffer.fill);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
881 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
882 /* Substract padding and delay from the beginning. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
883 pos = SAMPLE_ADJUST(pos);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
884 /* Negative sample offsets are not right, less than nothing is still nothing. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
885 return pos>0 ? pos : 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
886 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
887 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
888
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
889 off_t attribute_align_arg mpg123_tellframe(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
890 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
891 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
892 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
893 if(mh->num < mh->firstframe) return mh->firstframe;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
894 if(mh->to_decode) return mh->num;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
895 /* Consider firstoff? */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
896 return mh->buffer.fill ? mh->num : mh->num + 1;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
897 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
898
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
899 off_t attribute_align_arg mpg123_tell_stream(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
900 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
901 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
902 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
903 /* mh->rd is at least a bad_reader, so no worry. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
904 return mh->rd->tell(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
905 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
906
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
907 static int do_the_seek(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
908 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
909 int b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
910 off_t fnum = SEEKFRAME(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
911 mh->buffer.fill = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
912
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
913 if(mh->num < mh->firstframe) mh->to_decode = FALSE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
914
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
915 if(mh->num == fnum && mh->to_decode) return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
916 if(mh->num == fnum-1)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
917 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
918 mh->to_decode = FALSE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
919 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
920 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
921 if(mh->down_sample == 3)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
922 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
923 ntom_set_ntom(mh, fnum);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
924 debug3("fixed ntom for frame %"OFF_P" to %i, num=%"OFF_P, fnum, mh->ntom_val[0], mh->num);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
925 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
926 b = mh->rd->seek_frame(mh, fnum);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
927 debug1("seek_frame returned: %i", b);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
928 if(b<0) return b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
929 /* Only mh->to_ignore is TRUE. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
930 if(mh->num < mh->firstframe) mh->to_decode = FALSE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
931 return 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
932 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
933
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
934 off_t attribute_align_arg mpg123_seek(mpg123_handle *mh, off_t sampleoff, int whence)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
935 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
936 int b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
937 off_t pos;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
938 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
939 pos = mpg123_tell(mh); /* adjusted samples */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
940 /* pos < 0 also can mean that simply a former seek failed at the lower levels.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
941 In that case, we only allow absolute seeks. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
942 if(pos < 0 && whence != SEEK_SET)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
943 { /* Unless we got the obvious error of NULL handle, this is a special seek failure. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
944 if(mh != NULL) mh->err = MPG123_NO_RELSEEK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
945 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
946 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
947 if((b=init_track(mh)) < 0) return b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
948
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
949 switch(whence)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
950 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
951 case SEEK_CUR: pos += sampleoff; break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
952 case SEEK_SET: pos = sampleoff; break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
953 case SEEK_END:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
954 #ifdef GAPLESS
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
955 if(mh->end_os >= 0) pos = SAMPLE_ADJUST(mh->end_os) - sampleoff;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
956 #else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
957 if(mh->track_frames > 0) pos = SAMPLE_ADJUST(frame_outs(mh, mh->track_frames)) - sampleoff;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
958 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
959 else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
960 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
961 mh->err = MPG123_NO_SEEK_FROM_END;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
962 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
963 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
964 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
965 default: mh->err = MPG123_BAD_WHENCE; return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
966 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
967 if(pos < 0) pos = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
968 /* pos now holds the wanted sample offset in adjusted samples */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
969 frame_set_seek(mh, SAMPLE_UNADJUST(pos));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
970 pos = do_the_seek(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
971 if(pos < 0) return pos;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
972
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
973 return mpg123_tell(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
974 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
975
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
976 /*
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
977 A bit more tricky... libmpg123 does not do the seeking itself.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
978 All it can do is to ignore frames until the wanted one is there.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
979 The caller doesn't know where a specific frame starts and mpg123 also only knows the general region after it scanned the file.
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
980 Well, it is tricky...
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
981 */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
982 off_t attribute_align_arg mpg123_feedseek(mpg123_handle *mh, off_t sampleoff, int whence, off_t *input_offset)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
983 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
984 int b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
985 off_t pos;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
986 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
987 pos = mpg123_tell(mh); /* adjusted samples */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
988 debug3("seek from %li to %li (whence=%i)", (long)pos, (long)sampleoff, whence);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
989 /* The special seek error handling does not apply here... there is no lowlevel I/O. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
990 if(pos < 0) return pos; /* mh == NULL is covered in mpg123_tell() */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
991 if(input_offset == NULL)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
992 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
993 mh->err = MPG123_NULL_POINTER;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
994 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
995 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
996
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
997 if((b=init_track(mh)) < 0) return b; /* May need more to do anything at all. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
998
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
999 switch(whence)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1000 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1001 case SEEK_CUR: pos += sampleoff; break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1002 case SEEK_SET: pos = sampleoff; break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1003 case SEEK_END:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1004 #ifdef GAPLESS
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1005 if(mh->end_os >= 0) pos = SAMPLE_ADJUST(mh->end_os) - sampleoff;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1006 #else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1007 if(mh->track_frames > 0) pos = SAMPLE_ADJUST(frame_outs(mh, mh->track_frames)) - sampleoff;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1008 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1009 else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1010 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1011 mh->err = MPG123_NO_SEEK_FROM_END;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1012 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1013 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1014 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1015 default: mh->err = MPG123_BAD_WHENCE; return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1016 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1017 if(pos < 0) pos = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1018 frame_set_seek(mh, SAMPLE_UNADJUST(pos));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1019 pos = SEEKFRAME(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1020 mh->buffer.fill = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1021
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1022 /* Shortcuts without modifying input stream. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1023 *input_offset = mh->rdat.buffer.fileoff + mh->rdat.buffer.size;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1024 if(mh->num < mh->firstframe) mh->to_decode = FALSE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1025 if(mh->num == pos && mh->to_decode) goto feedseekend;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1026 if(mh->num == pos-1) goto feedseekend;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1027 /* Whole way. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1028 *input_offset = feed_set_pos(mh, frame_index_find(mh, SEEKFRAME(mh), &pos));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1029 mh->num = pos-1; /* The next read frame will have num = pos. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1030 if(*input_offset < 0) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1031
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1032 feedseekend:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1033 return mpg123_tell(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1034 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1035
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1036 off_t attribute_align_arg mpg123_seek_frame(mpg123_handle *mh, off_t offset, int whence)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1037 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1038 int b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1039 off_t pos = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1040 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1041 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1042 if((b=init_track(mh)) < 0) return b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1043
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1044 /* Could play games here with to_decode... */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1045 pos = mh->num;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1046 switch(whence)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1047 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1048 case SEEK_CUR: pos += offset; break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1049 case SEEK_SET: pos = offset; break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1050 case SEEK_END:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1051 if(mh->track_frames > 0) pos = mh->track_frames - offset;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1052 else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1053 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1054 mh->err = MPG123_NO_SEEK_FROM_END;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1055 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1056 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1057 break;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1058 default:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1059 mh->err = MPG123_BAD_WHENCE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1060 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1061 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1062 if(pos < 0) pos = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1063 /* Hm, do we need to seek right past the end? */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1064 else if(mh->track_frames > 0 && pos >= mh->track_frames) pos = mh->track_frames;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1065
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1066 frame_set_frameseek(mh, pos);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1067 pos = do_the_seek(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1068 if(pos < 0) return pos;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1069
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1070 return mpg123_tellframe(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1071 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1072
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1073 int attribute_align_arg mpg123_set_filesize(mpg123_handle *mh, off_t size)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1074 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1075 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1076 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1077
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1078 mh->rdat.filelen = size;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1079 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1080 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1081
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1082 off_t attribute_align_arg mpg123_length(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1083 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1084 int b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1085 off_t length;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1086 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1087 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1088 b = init_track(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1089 if(b<0) return b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1090 if(mh->track_samples > -1) length = mh->track_samples;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1091 else if(mh->track_frames > 0) length = mh->track_frames*spf(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1092 else if(mh->rdat.filelen >= 0) /* Let the case of 0 length just fall through. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1093 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1094 /* A bad estimate. Ignoring tags 'n stuff. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1095 double bpf = mh->mean_framesize ? mh->mean_framesize : compute_bpf(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1096 length = (off_t)((double)(mh->rdat.filelen)/bpf*spf(mh));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1097 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1098 else return MPG123_ERR; /* No length info there! */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1099
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1100 length = frame_ins2outs(mh, length);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1101 #ifdef GAPLESS
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1102 if(mh->end_os > 0 && length > mh->end_os) length = mh->end_os;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1103 length -= mh->begin_os;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1104 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1105 return length;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1106 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1107
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1108 int attribute_align_arg mpg123_scan(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1109 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1110 int b;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1111 off_t backframe;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1112 int to_decode, to_ignore;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1113 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1114 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1115 if(!(mh->rdat.flags & READER_SEEKABLE)){ mh->err = MPG123_NO_SEEK; return MPG123_ERR; }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1116 /* Scan through the _whole_ file, since the current position is no count but computed assuming constant samples per frame. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1117 /* Also, we can just keep the current buffer and seek settings. Just operate on input frames here. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1118 b = init_track(mh); /* mh->num >= 0 !! */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1119 if(b<0)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1120 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1121 if(b == MPG123_DONE) return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1122 else return MPG123_ERR; /* Must be error here, NEED_MORE is not for seekable streams. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1123 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1124 backframe = mh->num;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1125 to_decode = mh->to_decode;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1126 to_ignore = mh->to_ignore;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1127 b = mh->rd->seek_frame(mh, 0);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1128 if(b<0 || mh->num != 0) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1129 /* One frame must be there now. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1130 mh->track_frames = 1;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1131 mh->track_samples = spf(mh); /* Internal samples. */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1132 while(read_frame(mh) == 1)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1133 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1134 ++mh->track_frames;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1135 mh->track_samples += spf(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1136 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1137 b = mh->rd->seek_frame(mh, backframe);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1138 if(b<0 || mh->num != backframe) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1139 mh->to_decode = to_decode;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1140 mh->to_ignore = to_ignore;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1141 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1142 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1143
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1144 int attribute_align_arg mpg123_meta_check(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1145 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1146 if(mh != NULL) return mh->metaflags;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1147 else return 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1148 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1149
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1150 int attribute_align_arg mpg123_id3(mpg123_handle *mh, mpg123_id3v1 **v1, mpg123_id3v2 **v2)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1151 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1152 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1153 if(v1 != NULL) *v1 = NULL;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1154 if(v2 != NULL) *v2 = NULL;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1155 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1156
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1157 if(mh->metaflags & MPG123_ID3)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1158 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1159 id3_link(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1160 if(v1 != NULL && mh->rdat.flags & READER_ID3TAG) *v1 = (mpg123_id3v1*) mh->id3buf;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1161 if(v2 != NULL) *v2 = &mh->id3v2;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1162 mh->metaflags |= MPG123_ID3;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1163 mh->metaflags &= ~MPG123_NEW_ID3;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1164 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1165 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1166 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1167
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1168 int attribute_align_arg mpg123_icy(mpg123_handle *mh, char **icy_meta)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1169 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1170 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1171 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1172 if(icy_meta == NULL)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1173 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1174 mh->err = MPG123_NULL_POINTER;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1175 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1176 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1177 *icy_meta = NULL;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1178
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1179 if(mh->metaflags & MPG123_ICY)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1180 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1181 *icy_meta = mh->icy.data;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1182 mh->metaflags |= MPG123_ICY;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1183 mh->metaflags &= ~MPG123_NEW_ICY;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1184 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1185 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1186 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1187
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1188 char* attribute_align_arg mpg123_icy2utf8(const char* icy_text)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1189 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1190 return icy2utf8(icy_text);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1191 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1192
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1193
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1194 int attribute_align_arg mpg123_index(mpg123_handle *mh, off_t **offsets, off_t *step, size_t *fill)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1195 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1196 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1197 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1198 if(offsets == NULL || step == NULL || fill == NULL)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1199 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1200 mh->err = MPG123_BAD_INDEX_PAR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1201 return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1202 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1203 #ifdef FRAME_INDEX
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1204 *offsets = mh->index.data;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1205 *step = mh->index.step;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1206 *fill = mh->index.fill;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1207 #else
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1208 *offsets = NULL;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1209 *step = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1210 *fill = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1211 #endif
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1212 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1213 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1214
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1215 int attribute_align_arg mpg123_close(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1216 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1217 ALIGNCHECK(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1218 if(mh == NULL) return MPG123_ERR;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1219 if(mh->rd != NULL && mh->rd->close != NULL) mh->rd->close(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1220 mh->rd = NULL;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1221 if(mh->new_format)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1222 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1223 debug("Hey, we are closing a track before the new format has been queried...");
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1224 invalidate_format(&mh->af);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1225 mh->new_format = 0;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1226 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1227 return MPG123_OK;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1228 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1229
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1230 void attribute_align_arg mpg123_delete(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1231 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1232 if(mh != NULL)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1233 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1234 mpg123_close(mh);
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1235 frame_exit(mh); /* free buffers in frame */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1236 free(mh); /* free struct; cast? */
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1237 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1238 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1239
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1240 static const char *mpg123_error[] =
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1241 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1242 "No error... (code 0)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1243 "Unable to set up output format! (code 1)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1244 "Invalid channel number specified. (code 2)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1245 "Invalid sample rate specified. (code 3)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1246 "Unable to allocate memory for 16 to 8 converter table! (code 4)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1247 "Bad parameter id! (code 5)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1248 "Bad buffer given -- invalid pointer or too small size. (code 6)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1249 "Out of memory -- some malloc() failed. (code 7)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1250 "You didn't initialize the library! (code 8)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1251 "Invalid decoder choice. (code 9)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1252 "Invalid mpg123 handle. (code 10)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1253 "Unable to initialize frame buffers (out of memory?)! (code 11)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1254 "Invalid RVA mode. (code 12)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1255 "This build doesn't support gapless decoding. (code 13)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1256 "Not enough buffer space. (code 14)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1257 "Incompatible numeric data types. (code 15)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1258 "Bad equalizer band. (code 16)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1259 "Null pointer given where valid storage address needed. (code 17)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1260 "Error reading the stream. (code 18)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1261 "Cannot seek from end (end is not known). (code 19)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1262 "Invalid 'whence' for seek function. (code 20)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1263 "Build does not support stream timeouts. (code 21)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1264 "File access error. (code 22)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1265 "Seek not supported by stream. (code 23)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1266 "No stream opened. (code 24)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1267 "Bad parameter handle. (code 25)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1268 "Invalid parameter addresses for index retrieval. (code 26)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1269 "Lost track in the bytestream and did not attempt resync. (code 27)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1270 "Failed to find valid MPEG data within limit on resync. (code 28)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1271 "No 8bit encoding possible. (code 29)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1272 "Stack alignment is not good. (code 30)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1273 "You gave me a NULL buffer? (code 31)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1274 "File position is screwed up, please do an absolute seek (code 32)",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1275 "Inappropriate NULL-pointer provided.",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1276 "Bad key value given.",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1277 "There is no frame index (disabled in this build).",
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1278 "Frame index operation failed."
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1279 };
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1280
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1281 const char* attribute_align_arg mpg123_plain_strerror(int errcode)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1282 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1283 if(errcode >= 0 && errcode < sizeof(mpg123_error)/sizeof(char*))
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1284 return mpg123_error[errcode];
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1285 else switch(errcode)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1286 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1287 case MPG123_ERR:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1288 return "A generic mpg123 error.";
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1289 case MPG123_DONE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1290 return "Message: I am done with this track.";
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1291 case MPG123_NEED_MORE:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1292 return "Message: Feed me more input data!";
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1293 case MPG123_NEW_FORMAT:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1294 return "Message: Prepare for a changed audio format!";
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1295 default:
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1296 return "I have no idea - an unknown error code!";
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1297 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1298 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1299
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1300 int attribute_align_arg mpg123_errcode(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1301 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1302 if(mh != NULL) return mh->err;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1303 return MPG123_BAD_HANDLE;
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1304 }
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1305
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1306 const char* attribute_align_arg mpg123_strerror(mpg123_handle *mh)
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1307 {
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1308 return mpg123_plain_strerror(mpg123_errcode(mh));
7e08477b0fc1 MP3 decoder upgrade work.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1309 }