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fix computation of conversion buffer size

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git-svn-id: https://svn.musicpd.org/mpd/trunk@974 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Warren Dukes 2004-05-10 17:15:04 +00:00
parent 4f76ba5a42
commit 5b4a0a1821
1 changed files with 27 additions and 8 deletions
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35
src/pcm_utils.c
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@ -255,17 +255,36 @@ size_t pcm_sizeOfOutputBufferForAudioFormatConversion(AudioFormat * inFormat,
char * inBuffer, size_t inSize, AudioFormat * outFormat) char * inBuffer, size_t inSize, AudioFormat * outFormat)
{ {
const int shift = sizeof(mpd_sint16); const int shift = sizeof(mpd_sint16);
mpd_uint32 nlen = (((inSize >> shift) * size_t outSize = inSize;
(mpd_uint32)(outFormat->sampleRate)) /
switch(inFormat->bits) {
case 8:
outSize = outSize << 1;
break;
case 16:
break;
default:
ERROR("only 8 or 16 bits are supported for conversion!\n");
exit(EXIT_FAILURE);
}
switch(inFormat->channels) {
case 1:
outSize = (outSize >> 1) << 2;
break;
case 2:
break;
default:
ERROR("only 1 or 2 channels are supported for conversion!\n");
exit(EXIT_FAILURE);
}
outSize = (((outSize >> shift) * (mpd_uint32)(outFormat->sampleRate)) /
inFormat->sampleRate); inFormat->sampleRate);
nlen <<= shift; outSize <<= shift;
return outSize;
assert(outFormat->bits==16);
assert(outFormat->channels==2);
return nlen;
} }
/* vim:set shiftwidth=8 tabstop=8 expandtab: */ /* vim:set shiftwidth=8 tabstop=8 expandtab: */