On Thursday 08 March 2018 16:25:13 fredvs wrote:
>
> Perfect, I did test and it works with wine too.
> Little bémol (very, very little), only resolution of integer 16 and float
> 32 are working for Windows (not integer 32).
>
from pcaudiolib src/windows.c:
"
HRESULT
CreateWaveFormat(enum audio_object_format format,
uint32_t rate,
uint8_t channels,
WAVEFORMATEX **wfmt)
{
if (!wfmt)
return E_INVALIDARG;
switch (format)
{
case AUDIO_OBJECT_FORMAT_ALAW: return
CreateWaveFormatEx(WAVE_FORMAT_ALAW, 8, rate, channels, wfmt);
case AUDIO_OBJECT_FORMAT_ULAW: return
CreateWaveFormatEx(WAVE_FORMAT_MULAW, 8, rate, channels, wfmt);
case AUDIO_OBJECT_FORMAT_S8: return
CreateWaveFormatEx(WAVE_FORMAT_PCM, 8, rate, channels, wfmt);
case AUDIO_OBJECT_FORMAT_S16LE: return
CreateWaveFormatEx(WAVE_FORMAT_PCM, 16, rate, channels, wfmt);
case AUDIO_OBJECT_FORMAT_S32LE: return
CreateWaveFormatEx(WAVE_FORMAT_PCM, 32, rate, channels, wfmt);
case AUDIO_OBJECT_FORMAT_FLOAT32LE: return
CreateWaveFormatEx(WAVE_FORMAT_IEEE_FLOAT, 32, rate, channels, wfmt);
case AUDIO_OBJECT_FORMAT_FLOAT64LE: return
CreateWaveFormatEx(WAVE_FORMAT_IEEE_FLOAT, 64, rate, channels, wfmt);
default: return E_INVALIDARG;
}
}
"
It probably depends on the soundcard/driver which formats are supported.
> Some question...
>
> Do you have a idea what are audio_object_drain()
Waits until written audio data has been played.
> and audio_object_flush()
Cancels all buffered audio data.
Martin
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