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alsaaudio: add endianness support for VoiceIn 

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
Michael Walle 2011-01-08 17:53:30 +01:00 committed by malc
parent b6c9c9401c
commit d66bddd7a4
1 changed files with 27 additions and 7 deletions
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34
audio/alsaaudio.c
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@ -318,7 +318,7 @@ static int alsa_write (SWVoiceOut *sw, void *buf, int len)
return audio_pcm_sw_write (sw, buf, len);
}
static snd_pcm_format_t aud_to_alsafmt (audfmt_e fmt)
static snd_pcm_format_t aud_to_alsafmt (audfmt_e fmt, int endianness)
{
switch (fmt) {
case AUD_FMT_S8:
@ -328,16 +328,36 @@ static snd_pcm_format_t aud_to_alsafmt (audfmt_e fmt)
return SND_PCM_FORMAT_U8;
case AUD_FMT_S16:
return SND_PCM_FORMAT_S16_LE;
if (endianness) {
return SND_PCM_FORMAT_S16_BE;
}
else {
return SND_PCM_FORMAT_S16_LE;
}
case AUD_FMT_U16:
return SND_PCM_FORMAT_U16_LE;
if (endianness) {
return SND_PCM_FORMAT_U16_BE;
}
else {
return SND_PCM_FORMAT_U16_LE;
}
case AUD_FMT_S32:
return SND_PCM_FORMAT_S32_LE;
if (endianness) {
return SND_PCM_FORMAT_S32_BE;
}
else {
return SND_PCM_FORMAT_S32_LE;
}
case AUD_FMT_U32:
return SND_PCM_FORMAT_U32_LE;
if (endianness) {
return SND_PCM_FORMAT_U32_BE;
}
else {
return SND_PCM_FORMAT_U32_LE;
}
default:
dolog ("Internal logic error: Bad audio format %d\n", fmt);
@ -809,7 +829,7 @@ static int alsa_init_out (HWVoiceOut *hw, struct audsettings *as)
snd_pcm_t *handle;
struct audsettings obt_as;
req.fmt = aud_to_alsafmt (as->fmt);
req.fmt = aud_to_alsafmt (as->fmt, as->endianness);
req.freq = as->freq;
req.nchannels = as->nchannels;
req.period_size = conf.period_size_out;
@ -918,7 +938,7 @@ static int alsa_init_in (HWVoiceIn *hw, struct audsettings *as)
snd_pcm_t *handle;
struct audsettings obt_as;
req.fmt = aud_to_alsafmt (as->fmt);
req.fmt = aud_to_alsafmt (as->fmt, as->endianness);
req.freq = as->freq;
req.nchannels = as->nchannels;
req.period_size = conf.period_size_in;