[Bug 737516] gst-launch-1.0 videotestsrc ! x264enc ! decodebin ! autovideosink doesn't want to preroll

Mon Feb 2 03:57:23 PST 2015

https://bugzilla.gnome.org/show_bug.cgi?id=737516
  GStreamer | don't know | 1.4.3

Vincent Penquerc'h <vincent.penquerch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
                 CC|                            |vincent.penquerch at collabora
                   |                            |.co.uk
     Ever Confirmed|0                           |1

--- Comment #1 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> 2015-02-02 11:57:21 UTC ---
It seems related to typefind, somehow:

This prerolls:
gst-launch-1.0 videotestsrc ! x264enc ! h264parse ! avdec_h264 ! autovideosink

This does not:
gst-launch-1.0 videotestsrc ! x264enc ! typefind ! h264parse ! avdec_h264 !
autovideosink

In the case of typefind being used, the pipeline settles on byte-stream H264,
but settles on AVC without typefind.

However, playing byte-stream by forcing caps works fine if typefind isn't
around.

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