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0.22-fixes livetv -- skip back broken

 

 

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sdkovacs at gmail

Nov 21, 2009, 7:51 PM

Post #1 of 4 (415 views)
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0.22-fixes livetv -- skip back broken

I'm using 0.22 fixes from ATrpms, outputing via Nvidia 8400GS VDPAU.

The skip back button does nothing in livetv but works perfectly
(rewinds 5 seconds) in watch recordings. I apologize in advance for
watching livetv, but there's football on now.

Is this a known bug with livetv?

Thanks.
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mtdean at thirdcontact

Nov 21, 2009, 9:43 PM

Post #2 of 4 (373 views)
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Re: 0.22-fixes livetv -- skip back broken [In reply to]

On 11/21/2009 10:51 PM, sdkovacs wrote:
> I'm using 0.22 fixes from ATrpms, outputing via Nvidia 8400GS VDPAU.
>
> The skip back button does nothing in livetv but works perfectly
> (rewinds 5 seconds) in watch recordings. I apologize in advance for
> watching livetv, but there's football on now.
>
> Is this a known bug with livetv?

H.264 output? This could easily happen due to the lack of a seek
table. IIRC, for H.264 recordings, we're not sending seek table updates
to the player while recording because they caused more problems than not
sending them (so we're relying on the libav* seeking, which isn't as
accurate and might not work with such a small skip).

Mike
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sdkovacs at gmail

Nov 22, 2009, 6:52 AM

Post #3 of 4 (364 views)
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Re: 0.22-fixes livetv -- skip back broken [In reply to]

On Sun, Nov 22, 2009 at 12:43 AM, Michael T. Dean
<mtdean [at] thirdcontact> wrote:
> On 11/21/2009 10:51 PM, sdkovacs wrote:
>>
>> I'm using 0.22 fixes from ATrpms, outputing via Nvidia 8400GS VDPAU.
>>
>> The skip back button does nothing in livetv but works perfectly
>> (rewinds 5 seconds) in watch recordings. I apologize in advance for
>> watching livetv, but there's football on now.
>>
>> Is this a known bug with livetv?
>
> H.264 output?  This could easily happen due to the lack of a seek table.
>  IIRC, for H.264 recordings, we're not sending seek table updates to the
> player while recording because they caused more problems than not sending
> them (so we're relying on the libav* seeking, which isn't as accurate and
> might not work with such a small skip).

Hi Michael,

No, this is MPEG-2 output from a PVR-350 and PVR-150. I'll try to get
verbose output from mythfrontend sometime today.
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sdkovacs at gmail

Nov 25, 2009, 12:49 PM

Post #4 of 4 (315 views)
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Re: 0.22-fixes livetv -- skip back broken [In reply to]

On Sun, Nov 22, 2009 at 9:52 AM, sdkovacs <sdkovacs [at] gmail> wrote:
> On Sun, Nov 22, 2009 at 12:43 AM, Michael T. Dean
> <mtdean [at] thirdcontact> wrote:
>> On 11/21/2009 10:51 PM, sdkovacs wrote:
>>>
>>> I'm using 0.22 fixes from ATrpms, outputing via Nvidia 8400GS VDPAU.
>>>
>>> The skip back button does nothing in livetv but works perfectly
>>> (rewinds 5 seconds) in watch recordings. I apologize in advance for
>>> watching livetv, but there's football on now.
>>>
>>> Is this a known bug with livetv?
>>
>> H.264 output?  This could easily happen due to the lack of a seek table.
>>  IIRC, for H.264 recordings, we're not sending seek table updates to the
>> player while recording because they caused more problems than not sending
>> them (so we're relying on the libav* seeking, which isn't as accurate and
>> might not work with such a small skip).
>
> Hi Michael,
>
> No, this is MPEG-2 output from a PVR-350 and PVR-150. I'll try to get
> verbose output from mythfrontend sometime today.
>

My wife experienced the problem with skip back not working in LiveTV
again. I changed the mythfrontend command line parameter to -v
playback. Hopefully it's enough to find something useful.

$ mythfrontend --version
Please include all output in bug reports.
MythTV Version : 22885
MythTV Branch : branches/release-0-22-fixes/mythtv/
Network Protocol : 50
Library API : 0.22.20091023-1
QT Version : 4.4.3
Options compiled in:
linux release using_oss using_alsa using_arts using_jack
using_backend using_dvb using_firewire using_frontend using_hdhomerun
using_hdpvr using_iptv using_ivtv using_joystick_menu using_libfftw3
using_lirc using_mheg using_opengl_video using_opengl_vsync
using_qtwebkit using_v4l using_x11 using_xrandr using_xv using_xvmc
using_xvmc_vld using_xvmcw using_bindings_perl using_bindings_python
using_opengl using_vdpau using_ffmpeg_threads using_libavc_5_3
using_live using_mheg


The logfile is on pastebin because the output is large, but I can post
to the users list if you feel it's appropriate

http://pastebin.com/f1cebcc71

-Steve
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