playing and parsing mpeg2ts file

[Duchassin Frederic]

Hi Tim,


I played with the size of the queue in front of tsparse but not during 
playing.

In all case, My dot file is created later after the pipeline was playing.

You're right : my main problem is that decodebin is not completely 
linked (no audiodecoder beepdec linked) and i don't know why.

My though were like you : that's why I increase the tsparsequeue but 
without any success : no video+audio.


Just one test I have make  : attached the same pipeline but i change the 
order of the link : i begin by linking decodebin branch ,.... and it 
works... i really understand nothing !!!!


BR

Frédéric

Le 29/03/2019 à 11:35, Tim Müller a écrit :
> On Fri, 2019-03-29 at 11:00 +0100, Duchassin Frederic wrote:
>
> Hi Frederic,
>
> Not entirely sure what's going on here. You dot file and mail says that
> the queue in front of the tsparse has 201 buffers and max-size-
> buffers=2000 (two thousand).
>
> The dot file also doesn't show links from decodebin to your audio/video
> sink branches. Unclear if that's because of the timing of the dot file
> snapshot or because that's your problem (then the audio/video sinks
> never get any data and the pipeline won't preroll). If the decodebin
> was unliked I would suspect the tsparse queue to be fuller though.
>
> It's a bit suspicious that the queue in front of the tsparse is at 201
> buffers, which is just above the default max-size-buffers limit of 200.
> Did you increase the max-size-buffers limit after pipeline startup?
>
> So my best guess is that the queue in front of the tsparse runs full,
> and then blocks the filesrc ! tee upstream, and then decodebin etc.
> don't get more data and can't finish their preroll and the pipeline is
> stuck.
>
> GST_DEBUG=queue:6 might help confirm whether this is the case or not.
>
> Cheers
>   Tim
>
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