[mythtv-users] mythffmpeg stream analysis defeated, works with ffmpeg

[John Pilkington]

On 29/10/13 21:29, John Pilkington wrote:
> On 29/10/13 21:00, Jean-Yves Avenard wrote:
>> On 30 October 2013 07:34, John Pilkington <J.Pilk at tesco.net> wrote:
>>
>>> I made another similar recording today, deliberately overrunning the
>>> end-of-service when the cbbc slot is taken over, AIUI, by either BBC
>>> THREE
>>> or BBC FOUR. This one also failed to play with the normal frontend
>>> but, as
>>> JYA suggested, it does play with the mythfrontend -O FFMPEGTS=1 switch.
>>>
>>> I don't know if this /is/ related to #11882.  The frontend becomes
>>> unresponsive  with repeated blocks of  'Player(n): Waited 100ms for
>>> decoder
>>> to pause', but it does eventually respond to Escape and puts up a
>>> 'Need to
>>> switch video renderer' box.
>>>
>>
>> is this happening with -O FFMPEGTS=1 only?
>>
>
> I've just processed the recording, using ffmpeg with my usual script -
> although I do still have it and can check if you like.  With the plain
> frontend it hung for a long time, but then put up that box. It plays
> without obvious problems with the FFMPEG switch.  I don't have VDPAU
> capable hardware.  Using nVidia 304.88. GL enabled, Paint Engine set to
> Auto, Normal Playback profile.
>
> The Channel, FWIW, morphs into BBC THREE with no audio.
I expect there will be similar effects when CBeebies goes to BBC FOUR. 
Here's the scan output in case that helps - although maybe the PIDs 
would be more relevant. I have those too.

qam_64:698000000:BBC THREE:7:12323:9018:4288:4166=4166:dvb 
0:cnt(pnum:1,channum:1)
qam_64:698000000:BBC FOUR:9:12323:9018:4544:4166=4166:dvb 
0:cnt(pnum:1,channum:1)
qam_64:698000000:CBBC Channel:70:12323:9018:4608:4166=4166:dvb 
0:cnt(pnum:1,channum:1)
qam_64:698000000:CBeebies:71:12323:9018:4672:4166=4166:dvb 
0:cnt(pnum:1,channum:1)

>
>> The need to switch video renderer I believe is occurring if you are
>> using VAAPI and you aren't using OpenGL (you must use OpenGL with
>> VAAPI)
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