Mercurial > SDL_sound_CoreAudio
annotate playsound/playsound.c @ 91:fedde865563d
Updated.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Tue, 25 Sep 2001 22:48:57 +0000 |
parents | 7505dcf8d3b7 |
children | 3fcb23da06ba |
rev | line source |
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1 /* |
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2 * SDL_sound -- An abstract sound format decoding API. |
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3 * Copyright (C) 2001 Ryan C. Gordon. |
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4 * |
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5 * This library is free software; you can redistribute it and/or |
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6 * modify it under the terms of the GNU Lesser General Public |
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7 * License as published by the Free Software Foundation; either |
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8 * version 2.1 of the License, or (at your option) any later version. |
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9 * |
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10 * This library is distributed in the hope that it will be useful, |
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 * Lesser General Public License for more details. |
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14 * |
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15 * You should have received a copy of the GNU Lesser General Public |
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16 * License along with this library; if not, write to the Free Software |
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17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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18 */ |
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19 |
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20 /** |
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21 * This is a quick and dirty test of SDL_sound. |
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22 * |
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23 * Please see the file LICENSE in the source's root directory. |
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24 * |
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25 * This file written by Ryan C. Gordon. (icculus@clutteredmind.org) |
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26 */ |
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27 |
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28 #include <stdio.h> |
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29 #include <string.h> |
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30 #include <assert.h> |
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31 #include "SDL.h" |
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32 #include "SDL_sound.h" |
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33 |
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34 #define PLAYSOUND_VER_MAJOR 0 |
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35 #define PLAYSOUND_VER_MINOR 1 |
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36 #define PLAYSOUND_VER_PATCH 1 |
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37 |
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38 |
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39 static void output_versions(const char *argv0) |
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40 { |
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41 Sound_Version compiled; |
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42 Sound_Version linked; |
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43 SDL_version sdl_compiled; |
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44 const SDL_version *sdl_linked; |
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45 |
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46 SOUND_VERSION(&compiled); |
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47 Sound_GetLinkedVersion(&linked); |
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48 SDL_VERSION(&sdl_compiled); |
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49 sdl_linked = SDL_Linked_Version(); |
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50 |
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51 fprintf(stderr, |
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52 "%s version %d.%d.%d.\n" |
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53 " Compiled against SDL_sound version %d.%d.%d,\n" |
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54 " and linked against %d.%d.%d.\n" |
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55 " Compiled against SDL version %d.%d.%d,\n" |
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56 " and linked against %d.%d.%d.\n\n", |
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57 argv0, |
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58 PLAYSOUND_VER_MAJOR, PLAYSOUND_VER_MINOR, PLAYSOUND_VER_PATCH, |
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59 compiled.major, compiled.minor, compiled.patch, |
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60 linked.major, linked.minor, linked.patch, |
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61 sdl_compiled.major, sdl_compiled.minor, sdl_compiled.patch, |
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62 sdl_linked->major, sdl_linked->minor, sdl_linked->patch); |
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63 } /* output_versions */ |
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64 |
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65 |
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66 static void output_decoders(void) |
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67 { |
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68 const Sound_DecoderInfo **rc = Sound_AvailableDecoders(); |
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69 const Sound_DecoderInfo **i; |
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70 |
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71 fprintf(stderr, "Supported sound formats:\n"); |
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72 if (rc == NULL) |
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73 fprintf(stderr, " * Apparently, NONE!\n"); |
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74 else |
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75 { |
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76 for (i = rc; *i != NULL; i++) |
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77 { |
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78 fprintf(stderr, " * %s: %s\n Written by %s.\n %s\n", |
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79 (*i)->extension, (*i)->description, |
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80 (*i)->author, (*i)->url); |
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81 } /* for */ |
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82 } /* else */ |
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83 |
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84 fprintf(stderr, "\n"); |
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85 } /* output_decoders */ |
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86 |
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87 |
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88 static volatile int done_flag = 0; |
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89 |
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90 static void audio_callback(void *userdata, Uint8 *stream, int len) |
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91 { |
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92 static Uint8 overflow[16384]; /* this is a hack. */ |
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93 static int overflowBytes = 0; |
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94 Sound_Sample *sample = *((Sound_Sample **) userdata); |
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95 int bw = 0; /* bytes written to stream*/ |
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96 Uint32 rc; /* return code */ |
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97 |
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98 if (overflowBytes > 0) |
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99 { |
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100 bw = (overflowBytes < len) ? overflowBytes : len; |
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101 memcpy(stream, overflow, bw); |
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102 overflowBytes -= bw; |
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103 } /* if */ |
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104 |
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105 while ((bw < len) && (!done_flag)) |
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106 { |
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107 rc = Sound_Decode(sample); |
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108 if (rc > 0) |
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109 { |
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110 if ((bw + (int) rc) > len) |
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111 { |
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112 overflowBytes = (bw + rc) - len; |
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113 memcpy(overflow, |
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114 ((Uint8 *) sample->buffer) + (rc - overflowBytes), |
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115 overflowBytes); |
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116 rc -= overflowBytes; |
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117 } /* if */ |
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118 |
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119 memcpy(stream + bw, sample->buffer, rc); |
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120 bw += rc; |
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121 } /* if */ |
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122 |
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123 if (sample->flags & SOUND_SAMPLEFLAG_EOF) |
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124 done_flag = 1; |
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125 |
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126 else if (sample->flags & SOUND_SAMPLEFLAG_ERROR) |
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127 { |
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128 fprintf(stderr, "Error condition in decoding!\n" |
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129 " problem: [%s].\n", Sound_GetError()); |
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130 done_flag = 1; |
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131 } /* else if */ |
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132 } /* while */ |
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133 |
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134 assert(bw <= len); |
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135 |
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136 if (bw < len) |
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137 memset(stream + bw, '\0', len - bw); |
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138 } /* audio_callback */ |
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139 |
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140 |
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141 static void output_usage(const char *argv0) |
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142 { |
82
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143 fprintf(stderr, |
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144 "USAGE: %s [--decoders] [soundFile1] ... [soundFileN]\n", |
58
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145 argv0); |
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146 } /* output_usage */ |
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147 |
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148 |
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149 int main(int argc, char **argv) |
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150 { |
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151 Sound_AudioInfo sound_desired; |
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152 SDL_AudioSpec sdl_desired; |
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153 Sound_Sample *sample; |
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154 int i; |
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155 |
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156 if (argc < 2) |
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157 { |
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158 output_usage(argv[0]); |
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159 return(42); |
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160 } /* if */ |
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161 |
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162 for (i = 0; i < argc; i++) |
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163 { |
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164 if (strncmp(argv[i], "--", 2) != 0) |
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165 continue; |
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166 |
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167 if ( (strcmp(argv[i], "--version") == 0) || |
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168 (strcmp(argv[i], "--help") == 0 ) ) |
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169 { |
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170 output_versions(argv[0]); |
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171 output_usage(argv[0]); |
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172 } /* if */ |
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173 |
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174 else if (strcmp(argv[i], "--decoders") == 0) |
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175 { |
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176 if (!Sound_Init()) |
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177 { |
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178 fprintf(stderr, "Sound_Init() failed!\n" |
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179 " reason: [%s].\n", Sound_GetError()); |
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180 SDL_Quit(); |
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181 return(42); |
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182 } /* if */ |
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183 |
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184 output_decoders(); |
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185 Sound_Quit(); |
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186 return(0); |
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187 } /* else if */ |
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188 |
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189 else |
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190 { |
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191 fprintf(stderr, "unknown option: \"%s\"\n", argv[i]); |
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192 return(42); |
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193 } /* else */ |
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194 } /* for */ |
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195 |
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196 if (SDL_Init(SDL_INIT_AUDIO) == -1) |
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197 { |
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198 fprintf(stderr, "SDL_Init(SDL_INIT_AUDIO) failed!\n" |
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199 " reason: [%s].\n", SDL_GetError()); |
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200 return(42); |
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201 } /* if */ |
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202 |
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203 if (!Sound_Init()) |
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204 { |
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205 fprintf(stderr, "Sound_Init() failed!\n" |
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206 " reason: [%s].\n", Sound_GetError()); |
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207 SDL_Quit(); |
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208 return(42); |
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209 } /* if */ |
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210 |
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211 sound_desired.rate = 44100; |
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212 sound_desired.channels = 2; |
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213 sound_desired.format = AUDIO_S16SYS; |
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214 |
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215 sdl_desired.freq = 44100; |
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216 sdl_desired.format = AUDIO_S16SYS; |
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217 sdl_desired.channels = 2; |
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218 sdl_desired.samples = 4096; |
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219 sdl_desired.callback = audio_callback; |
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220 sdl_desired.userdata = &sample; |
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221 |
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222 if ( SDL_OpenAudio(&sdl_desired, NULL) < 0 ) |
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223 { |
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224 fprintf(stderr, "Couldn't open audio device!\n" |
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225 " reason: [%s].\n", SDL_GetError()); |
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226 Sound_Quit(); |
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227 SDL_Quit(); |
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228 return(42); |
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229 } /* if */ |
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230 |
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231 for (i = 1; i < argc; i++) |
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232 { |
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233 if (strncmp(argv[i], "--", 2) == 0) |
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234 continue; |
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235 |
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236 printf("Now playing [%s]...\n", argv[i]); |
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237 |
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238 sample = Sound_NewSampleFromFile(argv[i], &sound_desired, 4096 * 4); |
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239 if (!sample) |
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240 { |
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241 fprintf(stderr, "Couldn't load \"%s\"!\n" |
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242 " reason: [%s].\n", argv[i], Sound_GetError()); |
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243 continue; |
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244 } /* if */ |
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245 |
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246 done_flag = 0; |
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247 SDL_PauseAudio(0); |
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248 while (!done_flag) |
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249 SDL_Delay(10); |
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250 SDL_PauseAudio(1); |
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251 |
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252 Sound_FreeSample(sample); |
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253 } /* for */ |
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254 |
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255 Sound_Quit(); |
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256 SDL_Quit(); |
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257 return(0); |
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258 } /* main */ |
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259 |
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260 /* end of playsound.c ... */ |
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261 |