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Uros Bizjak <uros@kss-loka.si>

Browse source 
Sun, 28 Nov 1999 18:42:50 +0100 (CET)
mu-Law conversion plugin contains the Sun code now.
Added A-Law conversion plugin.
This commit is contained in:
Jaroslav Kysela 1999-11-28 18:10:47 +00:00
parent 091ee0f71b
commit 3239ca9940
6 changed files with 610 additions and 8250 deletions
Download patch file Download diff file Expand all files Collapse all files

21
src/pcm/pcm_plugin.c
View file

@ -248,7 +248,7 @@ double snd_pcm_plugin_hardware_ratio(snd_pcm_t *pcm, int channel)
static unsigned int snd_pcm_plugin_formats(snd_pcm_t *pcm, unsigned int formats)
{
formats |= SND_PCM_FMT_MU_LAW;
formats |= SND_PCM_FMT_MU_LAW | SND_PCM_FMT_A_LAW;
if (formats & (SND_PCM_FMT_U8|SND_PCM_FMT_S8|
SND_PCM_FMT_U16_LE|SND_PCM_FMT_S16_LE))
formats |= SND_PCM_FMT_U8|SND_PCM_FMT_S8|
@ -381,6 +381,19 @@ int snd_pcm_plugin_params(snd_pcm_t *pcm, snd_pcm_channel_params_t *params)
return -EINVAL;
}
break;
case SND_PCM_SFMT_A_LAW:
if (sinfo.formats & SND_PCM_FMT_S16_LE) {
sparams.format.format = SND_PCM_SFMT_S16_LE;
} else if (sinfo.formats & SND_PCM_FMT_U16_LE) {
sparams.format.format = SND_PCM_SFMT_U16_LE;
} else if (sinfo.formats & SND_PCM_FMT_S8) {
sparams.format.format = SND_PCM_SFMT_S8;
} else if (sinfo.formats & SND_PCM_FMT_U8) {
sparams.format.format = SND_PCM_SFMT_U8;
} else {
return -EINVAL;
}
break;
default:
return -EINVAL;
}
@ -430,6 +443,12 @@ int snd_pcm_plugin_params(snd_pcm_t *pcm, snd_pcm_channel_params_t *params)
swap_formats(params->channel, &srcfmt, &dstfmt);
err = snd_pcm_plugin_build_mulaw(srcfmt, dstfmt, &plugin);
break;
case SND_PCM_SFMT_A_LAW:
srcfmt = SND_PCM_SFMT_A_LAW;
dstfmt = sparams.format.format;
swap_formats(params->channel, &srcfmt, &dstfmt);
err = snd_pcm_plugin_build_alaw(srcfmt, dstfmt, &plugin);
break;
default:
srcfmt = params->format.format;
dstfmt = sparams.format.format;