oysteikt/mpd
0
0
Fork 0
Code Issues Pull Requests Releases Activity

pcm_convert: added 32 bit support

Browse Source 
All PCM sub libraries have 32 bit support now.  Add support to the
glue function pcm_convert().
This commit is contained in:
Max Kellermann 2009-03-02 16:41:10 +01:00
parent 3165e26f9a
commit a5a15beac2
1 changed files with 42 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
src/pcm_convert.c
View File

@ -123,6 +123,43 @@ pcm_convert_24(struct pcm_convert_state *state,
return buf;
}
static const int32_t *
pcm_convert_32(struct pcm_convert_state *state,
const struct audio_format *src_format,
const void *src_buffer, size_t src_size,
const struct audio_format *dest_format,
size_t *dest_size_r)
{
const int32_t *buf;
size_t len;
assert(dest_format->bits == 32);
buf = pcm_convert_to_32(&state->format_buffer, src_format->bits,
src_buffer, src_size, &len);
if (!buf)
g_error("pcm_convert_to_32() failed");
if (src_format->channels != dest_format->channels) {
buf = pcm_convert_channels_32(&state->channels_buffer,
dest_format->channels,
src_format->channels,
buf, len, &len);
if (!buf)
g_error("pcm_convert_channels_32() failed");
}
if (src_format->sample_rate != dest_format->sample_rate)
buf = pcm_resample_32(&state->resample,
dest_format->channels,
src_format->sample_rate, buf, len,
dest_format->sample_rate,
&len);
*dest_size_r = len;
return buf;
}
const void *
pcm_convert(struct pcm_convert_state *state,
const struct audio_format *src_format,
@ -141,6 +178,11 @@ pcm_convert(struct pcm_convert_state *state,
src_format, src, src_size,
dest_format, dest_size_r);
case 32:
return pcm_convert_32(state,
src_format, src, src_size,
dest_format, dest_size_r);
default:
g_error("cannot convert to %u bit\n", dest_format->bits);
return 0;