Audacious $Id:Doxyfile42802007-03-2104:39:00Znenolod$
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00001 /* 00002 * audio.h 00003 * Copyright 2009-2011 John Lindgren 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * 00008 * 1. Redistributions of source code must retain the above copyright notice, 00009 * this list of conditions, and the following disclaimer. 00010 * 00011 * 2. Redistributions in binary form must reproduce the above copyright notice, 00012 * this list of conditions, and the following disclaimer in the documentation 00013 * provided with the distribution. 00014 * 00015 * This software is provided "as is" and without any warranty, express or 00016 * implied. In no event shall the authors be liable for any damages arising from 00017 * the use of this software. 00018 */ 00019 00020 #ifndef LIBAUDCORE_AUDIO_H 00021 #define LIBAUDCORE_AUDIO_H 00022 00023 /* 24-bit integer samples are padded to 32-bit; high byte is always 0 */ 00024 enum { 00025 FMT_FLOAT, 00026 FMT_S8, FMT_U8, 00027 FMT_S16_LE, FMT_S16_BE, FMT_U16_LE, FMT_U16_BE, 00028 FMT_S24_LE, FMT_S24_BE, FMT_U24_LE, FMT_U24_BE, 00029 FMT_S32_LE, FMT_S32_BE, FMT_U32_LE, FMT_U32_BE}; 00030 00031 #if 0 00032 #define FMT_S16_NE FMT_S16_BE 00033 #define FMT_U16_NE FMT_U16_BE 00034 #define FMT_S24_NE FMT_S24_BE 00035 #define FMT_U24_NE FMT_U24_BE 00036 #define FMT_S32_NE FMT_S32_BE 00037 #define FMT_U32_NE FMT_U32_BE 00038 #else 00039 #define FMT_S16_NE FMT_S16_LE 00040 #define FMT_U16_NE FMT_U16_LE 00041 #define FMT_S24_NE FMT_S24_LE 00042 #define FMT_U24_NE FMT_U24_LE 00043 #define FMT_S32_NE FMT_S32_LE 00044 #define FMT_U32_NE FMT_U32_LE 00045 #endif 00046 00047 #define FMT_SIZEOF(f) ((f) == FMT_FLOAT ? sizeof (float) : (f) <= FMT_U8 ? 1 : (f) <= FMT_U16_BE ? 2 : 4) 00048 00049 void audio_from_int (const void * in, int format, float * out, int samples); 00050 void audio_to_int (const float * in, void * out, int format, int samples); 00051 void audio_amplify (float * data, int channels, int frames, float * factors); 00052 00053 #endif /* LIBAUDCORE_AUDIO_H */