Re: 96kHz 24bit WAV playback

Still stuck on this. Any help would be much appreciated.


John Stirling wrote:
> Back on 24/96 again...
>
> With the audio device refusing to open in 24 bit mode, we've got it as 
> far as thinking it's playing (GetPacket/OnPacket activity for correct 
> length of time, but no audio output)
> Device opens as follows:
> Device Configured:
>         Sample Rate: 96000
>        Sample Width: 8 [faked=AFMT_U8 actual=AFMT_U8]
>        Num channels: 2
>          Block size: 19200
>  Device buffer size: 32768
>
> When we then enable the audio device to accept 24 bits per sample it 
> does the same thing, but something goes wrong after about 5 seconds 
> (stop seeing any GetPacket/OnPacket debug)
> Device opens as follows:
> Device Configured:
>         Sample Rate: 96000
>        Sample Width: 24 [faked=AFMT_S24_LE actual=AFMT_S16_LE]
>        Num channels: 2
>          Block size: 19200
>  Device buffer size: 65536
>
> In the trace below it looks to me that everything is working as 
> expected up until the point it stops. Can anyone give me some pointers 
> - what might be going wrong, where to add debug etc.
>
> audrend.cpp:OnPacket to=0 t=5620 s=11520
> audlinux_oss.cpp:_WriteBytes l=19200 real=19200 rep=19200 t=1363200
> audrend.cpp:DoAudio IN
> audrend.cpp:WriteToAudioServices s=11520
> audrend.cpp:WriteToAudioServices OK t=5620
> audrend.cpp:WriteToAudioServices s=11520
> audrend.cpp:WriteToAudioServices OK t=5640
> audrend.cpp:DoAudio OUT
> wvffplin.cpp:GetPacket
> wvffplin.cpp:RIFFReadDone s=11520 st=5 283
> audrend.cpp:OnPacket to=0 t=5640 s=11520
> audrend.cpp:DoAudio IN
> audrend.cpp:WriteToAudioServices s=11520
> audrend.cpp:WriteToAudioServices OK t=5660
> audrend.cpp:DoAudio OUT
> wvffplin.cpp:GetPacket
> wvffplin.cpp:RIFFReadDone s=11520 st=5 284
> wvffplin.cpp:GetPacket
> wvffplin.cpp:RIFFReadDone s=11520 st=5 285
> audrend.cpp:OnPacket to=0 t=5660 s=11520
> audrend.cpp:OnPacket to=0 t=5680 s=11520
> audrend.cpp:DoAudio IN
> audrend.cpp:WriteToAudioServices s=11520
> audrend.cpp:WriteToAudioServices OK t=5680
> audrend.cpp:WriteToAudioServices s=11520
> audrend.cpp:WriteToAudioServices OK t=5700
> audrend.cpp:DoAudio OUT
> audlinux_oss.cpp:_WriteBytes l=19200 real=19200 rep=19200 t=1382400
> audrend.cpp:DoAudio IN
> audrend.cpp:DoAudio OUT
> wvffplin.cpp:GetPacket
> wvffplin.cpp:RIFFReadDone s=11520 st=5 286
> audrend.cpp:OnPacket to=0 t=5700 s=11520
> audrend.cpp:DoAudio IN
> audrend.cpp:WriteToAudioServices s=11520
> audrend.cpp:WriteToAudioServices OK t=5720
> audrend.cpp:DoAudio OUT
> audrend.cpp:DoAudio IN
> audrend.cpp:DoAudio OUT
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