On Wed, 2016-05-11 at 15:27 +0200, Sachs Jürgen wrote:
Hi Jürgen,
> I've a problem decoding files using gstmpegdemux (MPEG PES streams,
> VOB files). When I launch gst-play, gst-launch etc. with some of this
> kind of files, I do not get the subtitle tracks. (Indeed I do not
> want to use gst-play & co - I'm maintaining a GStreamer application)
>
> The reason for this is that the demux "looks for substreams" for ~2s
> and then sending the "no-more-pads" message. After the message the
> demux does not create new pads. Unfortunately the subtitles start
> later in the stream...
>
> Is there a recommended way how to handle such situations on
> application level?
> * I found similary issue in
https://bugzilla.gnome.org/show_bug.cgi?
> id=747616, is there a workaround available
> * possibly I can check something using pad probes or other "tricks"
> every some seconds and reconstruct the pipeline in case of subtitles
> are to be decoded?
>
> Thanks for any hints and ideas that can help
If you know in advance what streams will exist, you could send a custom
event to the demuxer like the dvdreadsrc does, but that's not exactly
ideal of course.
There's also some work ongoing [*] that will make this kind of
situation easier to handle properly in GStreamer and which will
hopefully land in master soon.
Cheers
-Tim
[*]
https://bugzilla.gnome.org/show_bug.cgi?id=758960--
Tim Müller, Centricular Ltd -
http://www.centricular.com_______________________________________________
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