[mythtv] One TV station without audio, the rest work.

[Greg Grotsky]

On 2/13/07, Greg Grotsky <spikeygg at gmail.com> wrote:
>
> On 2/10/07, Greg Grotsky < spikeygg at gmail.com> wrote:
> >
> > I've had this problem for a few months now.  One out of 10 of my TV
> > stations has no audio.  I can watch it with my TV's built in tuner and the
> > audio works, I can also use the "azap -r" with mplayer and the audio works
> > there too.  I did a "mythfrontend -v audio", this is the output:
> >
> > 2007-02-10 11:19:49.133 TV: Attempting to change from None to
> > WatchingLiveTV
> > 2007-02-10 11:19:49.136 Using protocol version 32
> > 2007-02-10 11:19:49.488 NVP: Disabling Audio, params(-1,2,44100)
> > 2007-02-10 11:19: 49.491 VideoOutputXv: XvMCTex: Init failed
> > 2007-02-10 11:19:49.492 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
> > Overlay'
> > 2007-02-10 11:19:50.205 TV: Changing from None to WatchingLiveTV
> > 2007-02-10 11:19: 50.213 Realtime priority would require SUID as root.
> > 2007-02-10 11:19:50.370 Video timing method: SGI OpenGL
> > 2007-02-10 11:19:53.598 NVP: Prebuffer wait timed out 10 times.
> > 2007-02-10 11:19:54.756 VideoOutputXv: XvMCTex: Init failed
> > 2007-02-10 11:19:54.761 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
> > Overlay'
> > 2007-02-10 11:19:55.412 AFD: Opened codec 0x27c23b0, id(MPEG2VIDEO)
> > type(Video)
> > 2007-02-10 11:19:55.413 AFD: Opened codec 0x27dfca0, id(AC3) type(Audio)
> >
> > 2007-02-10 11:19:55.413 AFD: Audio Track #1 is A/V stream #1 and has 0
> > channels in the English language(6647399).
> > 2007-02-10 11:19:55.415 AFD: Opened codec 0x27f8560, id(MPEG2VIDEO)
> > type(Video)
> > 2007-02-10 11:19: 55.416 AFD: Opened codec 0xd26470, id(MPEG2VIDEO)
> > type(Video)
> > 2007-02-10 11:19:55.422 AFD: Selected track 1: English AC3 ?ch (A/V
> > Stream #1)
> > 2007-02-10 11:19:55.422 AFD: Initializing audio parms from audio track
> > #1
> > 2007-02-10 11:19:55.423 AFD: Audio format changed
> >                         from id(NONE)    -1Hz -1ch   0bps    ;
> > id(NONE)    -1Hz -1ch   0bps
> >                         to   id( AC3)     0Hz  0ch   0bps    ; id(
> > AC3)     0Hz  0ch   0bps
> > 2007-02-10 11:19:55.423 NVP: Disabling Audio, params(0,0,0)
> > 2007-02-10 11:19:56.755 NVP: prebuffering pause
> > 2007-02-10 11:19:57.165 TV: Attempting to change from WatchingLiveTV to
> > None
> > 2007-02-10 11:19:57.652 TV: Changing from WatchingLiveTV to None
>
>
> Anyone?  I'm using a PCHDTV HD-3000 card in DVB mode.
>


So after a lot of trial and error I have found this audio issue to be caused
by Daniel's changeset 12439.

Using revision 12438 and watching LiveTV tuned to channel 7.1 the audio
works!
Using revision 12439 and watching LiveTV tuned to channel 7.1 and the audio
is broken.

I can use mplayer and "azap -r" to tune the station and the audio works fine
that way as well.

When it fails I also get a lot of these messages from the backend server:
2007-02-24 00:43:23.380 Started PESPacket, but !payloadStart()
2007-02-24 00:43:23.410 Started PESPacket, but !payloadStart()
2007-02-24 00:43:23.453 Started PESPacket, but !payloadStart()
2007-02-24 00:43:23.486 Started PESPacket, but !payloadStart()
.....

-Greg
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