[gstreamer-bugs] [Bug 556336] New: [PATCH] gstffmpegdec.c: prefer demuxer's pixel aspect ratio over the decoder's
GStreamer (bugzilla.gnome.org)
bugzilla-daemon at bugzilla.gnome.org
Tue Oct 14 14:23:17 PDT 2008
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GStreamer | gst-ffmpeg | Ver: HEAD CVS
Summary: [PATCH] gstffmpegdec.c: prefer demuxer's pixel aspect
ratio over the decoder's
Product: GStreamer
Version: HEAD CVS
Platform: Other
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: gst-ffmpeg
AssignedTo: gstreamer-bugs at lists.sourceforge.net
ReportedBy: robin at nibor.org
QAContact: gstreamer-bugs at lists.sourceforge.net
GNOME version: Unspecified
GNOME milestone: Unspecified
When both the demuxer and the decoder provide a non-1:1 PAR, currently the
decoder is preferred. This patch changes it so that the demuxer is preferred,
because that allows a user to control the PAR with the container (changing the
PAR in the video stream is much more difficult). See also bug 555699 for the
same problem with theoradec.
The current code does some "guessing" in that when both specify a PAR, the one
with the non-square PAR is preferred. This means it doesn't respect a square
PAR that is set in the container, but I don't know how important that is. Maybe
that code should be changed to always prefer the demuxer's PAR, that would be
more in line with the behaviour that is now implemented in theoradec and
mpeg2dec (see bug 555699).
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