[Bug 708864] New: mp4mux: Does not negotiate due to framerate caps not set on peer pad

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Thu Sep 26 11:42:19 PDT 2013


https://bugzilla.gnome.org/show_bug.cgi?id=708864
  GStreamer | gst-plugins-good | 1.2.0

           Summary: mp4mux: Does not negotiate due to framerate caps not
                    set on peer pad
    Classification: Platform
           Product: GStreamer
           Version: 1.2.0
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: hansm at axis.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Since gstreamer added the "Stricter (correct) caps subset checking" some
pipelines does not work.
Example:
rtspsrc location="..." ! rtph264depay ! h264parse ! mp4mux ! fakesink

This is issue occurs due to the mp4mux require the framerate set in the peer
caps which it's not.

It seems that this exact problem has been fixed for the matroskamux but not
mp4mux.
commit 2a8566ddec7cdacec68413ebd81fbe5c4182bbdc
Author: Wim Taymans <wim.taymans at collabora.co.uk>
Date:   Tue Aug 27 15:25:16 2013 +0200

    matroska-mux: remove framerate restriction

    Remove the framerate restriction on the caps.

It might be good to check if this issue affects all or other muxers.

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