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| author | J. Alexander Treuman <jat@spatialrift.net> | 2007-05-23 11:04:04 +0000 |
|---|---|---|
| committer | J. Alexander Treuman <jat@spatialrift.net> | 2007-05-23 11:04:04 +0000 |
| commit | 495e1b6cf9f4ef037c7462c8a2973744688b8665 (patch) | |
| tree | fbe781365cf189f88221533a7e7ace7a2efbda14 /src/pcm_utils.c | |
| parent | fbb3a94f17836aa33de78fd73db0f5d54464379d (diff) | |
| download | mpd-495e1b6cf9f4ef037c7462c8a2973744688b8665.tar.gz mpd-495e1b6cf9f4ef037c7462c8a2973744688b8665.tar.xz mpd-495e1b6cf9f4ef037c7462c8a2973744688b8665.zip | |
Tidying up pcm_utils.c a bit more.
git-svn-id: https://svn.musicpd.org/mpd/trunk@6230 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to 'src/pcm_utils.c')
| -rw-r--r-- | src/pcm_utils.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/pcm_utils.c b/src/pcm_utils.c index 4cf5f2a7d..b3c6689ae 100644 --- a/src/pcm_utils.c +++ b/src/pcm_utils.c @@ -275,7 +275,7 @@ static int pcm_convertSampleRate(mpd_sint8 channels, mpd_uint32 inSampleRate, } #endif /* !HAVE_LIBSAMPLERATE */ -static char *pcm_convertChannels(mpd_sint8 inChannels, char *inBuffer, +static char *pcm_convertChannels(mpd_sint8 channels, char *inBuffer, size_t inSize, size_t *outSize) { static char *buf; @@ -285,7 +285,7 @@ static char *pcm_convertChannels(mpd_sint8 inChannels, char *inBuffer, mpd_sint16 *out; int inSamples, i; - switch (inChannels) { + switch (channels) { /* convert from 1 -> 2 channels */ case 1: *outSize = (inSize >> 1) << 2; @@ -329,7 +329,7 @@ static char *pcm_convertChannels(mpd_sint8 inChannels, char *inBuffer, return outBuffer; } -static char *pcm_convertTo16bit(mpd_sint8 inBits, char *inBuffer, size_t inSize, +static char *pcm_convertTo16bit(mpd_sint8 bits, char *inBuffer, size_t inSize, size_t *outSize) { static char *buf; @@ -339,7 +339,7 @@ static char *pcm_convertTo16bit(mpd_sint8 inBits, char *inBuffer, size_t inSize, mpd_sint16 *out; int i; - switch (inBits) { + switch (bits) { case 8: *outSize = inSize << 1; if (*outSize > len) { @@ -405,12 +405,14 @@ void pcm_convertAudioFormat(AudioFormat * inFormat, char *inBuffer, size_t pcm_sizeOfConvBuffer(AudioFormat * inFormat, size_t inSize, AudioFormat * outFormat) { - const int shift = sizeof(mpd_sint16) * outFormat->channels; + const double ratio = (double)outFormat->sampleRate / + (double)inFormat->sampleRate; + const int shift = 2 * outFormat->channels; size_t outSize = inSize; switch (inFormat->bits) { case 8: - outSize = outSize << 1; + outSize <<= 1; break; case 16: break; @@ -431,8 +433,7 @@ size_t pcm_sizeOfConvBuffer(AudioFormat * inFormat, size_t inSize, } outSize /= shift; - outSize = floor(0.5 + (double)outSize * - ((double)outFormat->sampleRate / (double)inFormat->sampleRate)); + outSize = floor(0.5 + (double)outSize * ratio); outSize *= shift; return outSize; |