[Bug 758651] Fail to play MPEG2 video clip in file container format MPEG-PS in manual gst command pipeline

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=758651

Scott D Phillips <scott.d.phillips at intel.com> changed:

           What    |Removed                     |Added
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                 CC|                            |scott.d.phillips at intel.com

--- Comment #8 from Scott D Phillips <scott.d.phillips at intel.com> ---
It looks like the problem here is that this clip is mpeg video version 1. The
mpegpsdemux eventually adds a video pad with mpegversion=1. mpegvideoparse's
sink pad has already fixated at mpegversion=2 from vaapidecode so the pads
can't link. I'm not familiar enough with gst-launch-1.0 to understand why it
then just sits waiting, but you can see the same behavior without vaapi in this
pipeline:

gst-launch-1.0 filesrc location=sample_mpeg_ps_stream ! mpegpsdemux !
mpegvideoparse ! video/mpeg,mpegversion=2 ! avdec_mpegvideo ! fakesink

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