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38
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1
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2 /*
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3 * This is a wrapper interface that tries to provide a similar
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4 * front-end interface to SDL_sound.
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5 */
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6
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7 #ifndef SOUNDDECODER_H
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8 #define SOUNDDECODER_H
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9
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10 #ifdef __cplusplus
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11 extern "C" {
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12 #endif
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13
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14
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15 #include <stdint.h>
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16 #include <stddef.h>
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17
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18 #include "al.h" /* OpenAL */
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19
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20 /* Compatibility defines for SDL */
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21 #define AUDIO_U8 0x0008
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22 #define AUDIO_S8 0x8008
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23 #define AUDIO_U16LSB 0x0010
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24 #define AUDIO_S16LSB 0x8010
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25 #define AUDIO_U16MSB 0x1010
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26 #define AUDIO_S16MSB 0x9010
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27 #define AUDIO_U16 AUDIO_U16LSB
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28 #define AUDIO_S16 AUDIO_S16LSB
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29
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30 #ifdef ANDROID_NDK
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31 #include <endian.h>
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32 #if _BYTE_ORDER == _BIG_ENDIAN
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33 #define __BIG_ENDIAN__ 1
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34 #elif _BYTE_ORDER == _LITTLE_ENDIAN
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35 #define __LITTLE_ENDIAN__ 1
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36 #else
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37 #warning "Android falling back to __LITTLE_ENDIAN__"
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38 #define __LITTLE_ENDIAN__ 1
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39 #endif
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40 #endif
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41
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42 #if __BIG_ENDIAN__
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43 #warning "Using __BIG_ENDIAN__"
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44 #define AUDIO_U16SYS AUDIO_U16MSB
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45 #define AUDIO_S16SYS AUDIO_S16MSB
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46 #elif __LITTLE_ENDIAN__
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47 #define AUDIO_U16SYS AUDIO_U16LSB
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48 #define AUDIO_S16SYS AUDIO_S16LSB
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49 #else
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50 #warning "Using __LITTLE_ENDIAN__ as fallback"
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51 #define AUDIO_U16SYS AUDIO_U16LSB
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52 #define AUDIO_S16SYS AUDIO_S16LSB
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53 #endif
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54
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55 struct ALmixer_RWops;
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56
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57 typedef enum
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58 {
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59 SOUND_SAMPLEFLAG_NONE = 0,
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60 SOUND_SAMPLEFLAG_CANSEEK = 1,
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61 SOUND_SAMPLEFLAG_EOF = 1 << 29,
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62 SOUND_SAMPLEFLAG_ERROR = 1 << 30,
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63 SOUND_SAMPLEFLAG_EAGAIN = 1 << 31
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64 } SoundDecoder_SampleFlags;
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65
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66 #define Sound_SampleFlags SoundDecoder_SampleFlags;
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67
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68 typedef struct SoundDecoder_AudioInfo
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69 {
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70 //uint16_t format; /**< Equivalent of SDL_AudioSpec.format. */
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71 ALushort format; /**< Equivalent of SDL_AudioSpec.format. */
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72 ALubyte channels;
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73 // uint8_t channels;
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74 //uint32_t rate;
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75 ALuint rate;
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76 } SoundDecoder_AudioInfo;
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77
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78 //#define Sound_AudioInfo SoundDecoder_AudioInfo;
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79 typedef struct SoundDecoder_AudioInfo Sound_AudioInfo;
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80
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81
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82
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83 typedef struct SoundDecoder_DecoderInfo
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84 {
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85 const char** extensions;
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86 const char* description;
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87 const char* author;
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88 const char* url;
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89 } SoundDecoder_DecoderInfo;
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90
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91 //#define Sound_DecoderInfo SoundDecoder_DecoderInfo;
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92 typedef struct SoundDecoder_DecoderInfo Sound_DecoderInfo;
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93
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94
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95
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96 typedef struct SoundDecoder_Sample
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97 {
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98 void* opaque;
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99 const SoundDecoder_DecoderInfo* decoder;
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100 SoundDecoder_AudioInfo desired;
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101 SoundDecoder_AudioInfo actual;
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102 void *buffer;
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103 size_t buffer_size;
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104 SoundDecoder_SampleFlags flags;
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105 } SoundDecoder_Sample;
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106
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107 //#define Sound_Sample SoundDecoder_Sample;
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108 typedef struct SoundDecoder_Sample Sound_Sample;
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109
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110
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111 typedef struct SoundDecoder_Version
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112 {
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113 int major;
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114 int minor;
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115 int patch;
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116 } SoundDecoder_Version;
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117
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118 //#define Sound_Version SoundDecoder_Version;
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119 typedef struct SoundDecoder_Version Sound_Version;
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120
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121
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122 #define SOUNDDECODER_VER_MAJOR 0
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123 #define SOUNDDECODER_VER_MINOR 0
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124 #define SOUNDDECODER_VER_PATCH 1
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125
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126 #define SOUNDDECODER_VERSION(x) \
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127 { \
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128 (x)->major = SOUNDDECODER_VER_MAJOR; \
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129 (x)->minor = SOUNDDECODER_VER_MINOR; \
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130 (x)->patch = SOUNDDECODER_VER_PATCH; \
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131 }
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132
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133 #define SOUND_VERSION SOUNDDECODER_VERSION
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134
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135 void SoundDecoder_GetLinkedVersion(SoundDecoder_Version *ver);
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136 #define Sound_GetLinkedVersion SoundDecoder_GetLinkedVersion
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137
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138 int SoundDecoder_Init(void);
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139 #define Sound_Init SoundDecoder_Init
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140
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141 void SoundDecoder_Quit(void);
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142 #define Sound_Quit SoundDecoder_Quit
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143
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144
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145 const SoundDecoder_DecoderInfo** SoundDecoder_AvailableDecoders(void);
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146 #define Sound_AvailableDecoders SoundDecoder_AvailableDecoders
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147
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148
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149 const char* SoundDecoder_GetError(void);
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150 #define Sound_GetError SoundDecoder_GetError
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151
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152
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153 void SoundDecoder_ClearError(void);
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154 #define Sound_ClearError SoundDecoder_ClearError
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155
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156
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157
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158 SoundDecoder_Sample* SoundDecoder_NewSample(
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159 struct ALmixer_RWops* rw_ops,
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160 const char* ext,
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161 SoundDecoder_AudioInfo* desired,
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162 size_t buffer_size);
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163 #define Sound_NewSample SoundDecoder_NewSample
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164
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165 SoundDecoder_Sample* SoundDecoder_NewSampleFromFile(const char* file_name,
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166 SoundDecoder_AudioInfo* desired,
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167 size_t bufferSize);
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168 #define Sound_NewSampleFromFile SoundDecoder_NewSampleFromFile
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169
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170
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171 void SoundDecoder_FreeSample(SoundDecoder_Sample* sound_sample);
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172 #define Sound_FreeSample SoundDecoder_FreeSample
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173
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174
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175 ptrdiff_t SoundDecoder_GetDuration(SoundDecoder_Sample* sound_sample);
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176 #define Sound_GetDuration SoundDecoder_GetDuration
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177
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178 int SoundDecoder_SetBufferSize(SoundDecoder_Sample* sound_sample, size_t new_buffer_size);
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179 #define Sound_SetBufferSize SoundDecoder_SetBufferSize
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180
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181 size_t SoundDecoder_Decode(SoundDecoder_Sample* sound_sample);
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182 #define Sound_Decode SoundDecoder_Decode
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183
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184 size_t SoundDecoder_DecodeAll(SoundDecoder_Sample* sound_sample);
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185 #define Sound_DecodeAll SoundDecoder_DecodeAll
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186
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187 int SoundDecoder_Rewind(SoundDecoder_Sample* sound_sample);
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188 #define Sound_Rewind SoundDecoder_Rewind
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189
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190 int SoundDecoder_Seek(SoundDecoder_Sample* sound_sample, size_t ms);
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191 #define Sound_Seek SoundDecoder_Seek
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192
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193
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194 /* Ends C function definitions when using C++ */
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195 #ifdef __cplusplus
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196 }
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197 #endif
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198
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199 #endif
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200
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