[mythtv-users] Strange sound problem...

[Adrian Flynn]

On Wed, 2004-05-12 at 17:00, Steffen Schlink wrote:
> Adrian Flynn schrieb:
> [...]
> 
> > Possibilities: 1. There is a library missing or silently failing on the
> > shuttle frontend
> >  
> >
> [...]
> This is exact the same thought I had!
> Knows anyone how the mpeg2audio will be decoded?? With libmad? Maybe 
> there is an error...
> 
> Steffen Schlink

I have done some further testing and found the following debug
information by running 
	mythfrontend -v audio

See extract below.

It looks like the audio stream is not being extracted correctly from the
Myth protocol stream, when mpeg2 is being used. It works fine for rtjpeg

Can any of the developers advise where I should start looking.

Thanks

Adrian

Log extract:



> 2004-05-12 19:37:22 Using protocol version 8
> Input #0, mpeg, from 'rbuf://192.168.129.30:6543/var/media2/livetv/ringbuf2.nuv':
>   Stream #0.0: Video: mpeg2video, 640x576, 25.00 fps
>   Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
> 2004-05-12 19:37:24 Killing AudioOutputDSP
> 2004-05-12 19:37:24 Opening OSS audio device '/dev/adsp'.
> 2004-05-12 19:37:24 Audio fragment size: 4096
> 2004-05-12 19:37:24 kickoffOutputAudioLoop: pid = 14005
> 2004-05-12 19:37:24 Ending reconfigure
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 Using XV port 111
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 Changing from None to WatchingLiveTV
> 2004-05-12 19:37:24 waiting for space to write 1024 zeros on soundcard which has 64 bytes free
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:24 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
... repeated hundreds of times...
> 2004-05-12 19:37:26 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:26 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:26 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> [mpeg2video @ 0x406ee970]ac-tex damaged at 16 8
> [mpeg2video @ 0x406ee970]concealing errors
> [mpeg2video @ 0x406ee970]Warning MVs not available
> 2004-05-12 19:37:26 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:26 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:26 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
> 2004-05-12 19:37:26 audio thread waiting for buffer to fill fragment_size=4096, audiolen=0
... repeated many times again...
> 2004-05-12 19:37:26 Killing AudioOutputDSP
> 2004-05-12 19:37:26 kickoffOutputAudioLoop exiting
> 2004-05-12 19:37:26 Changing from WatchingLiveTV to None
> 2004-05-12 19:37:26 Changing from None to None
> Not removing top most widget, error