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added af_format_encode() to convert sample format from libaf to mplayer (OSS)

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8994 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2003-01-18 17:31:22 +00:00
parent 97688e3505
commit 8fd2c262e4
2 changed files with 38 additions and 0 deletions
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37
libaf/af_mp.c
View File

@ -41,3 +41,40 @@ int af_format_decode(int ifmt)
}
return ofmt;
}
/* Encodes the format from libaf format to mplayer (OSS) format */
int af_format_encode(void* fmtp)
{
af_data_t* fmt=(af_data_t*) fmtp;
switch(fmt->format&AF_FORMAT_SPECIAL_MASK){
case 0: // PCM:
if((fmt->format&AF_FORMAT_POINT_MASK)==AF_FORMAT_I){
if((fmt->format&AF_FORMAT_SIGN_MASK)==AF_FORMAT_SI){
// signed int PCM:
switch(fmt->bps){
case 1: return AFMT_S8;
case 2: return (fmt->format&AF_FORMAT_LE) ? AFMT_S16_LE : AFMT_S16_BE;
case 4: return (fmt->format&AF_FORMAT_LE) ? AFMT_S32_LE : AFMT_S32_BE;
}
} else {
// unsigned int PCM:
switch(fmt->bps){
case 1: return AFMT_U8;
case 2: return (fmt->format&AF_FORMAT_LE) ? AFMT_U16_LE : AFMT_U16_BE;
// case 4: return (fmt->format&AF_FORMAT_LE) ? AFMT_U32_LE : AFMT_U32_BE;
}
}
} else {
// float PCM:
return AFMT_FLOAT; // FIXME?
}
break;
case AF_FORMAT_MU_LAW: return AFMT_MU_LAW;
case AF_FORMAT_A_LAW: return AFMT_A_LAW;
case AF_FORMAT_MPEG2: return AFMT_MPEG;
case AF_FORMAT_AC3: return AFMT_AC3;
case AF_FORMAT_IMA_ADPCM: return AFMT_IMA_ADPCM;
}
return AFMT_S16_LE; // shouldn't happen
}

1
libaf/af_mp.h
View File

@ -22,5 +22,6 @@
/* Decodes the format from mplayer format to libaf format */
extern int af_format_decode(int format);
extern int af_format_encode(void* fmt);
#endif /* __af_mp_h__ */