[gstreamer-bugs] [Bug 552786] New: flutsmux is not setting timestamps on buffers output

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-bad | Ver: HEAD CVS
           Summary: flutsmux is not  setting timestamps on buffers output
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: zaheermerali at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Same as: https://core.fluendo.com/gstreamer/trac/ticket/94

When executing the following pipeline, udpsrc streams the file at the wrong
rate. It streams it as fast as possible, note the time of execution displayed
by gst-launch, knowing that the video is about 7s long.

gst-launch-0.10.exe --gst-debug-no-color --gst-debug=flutsm ux:0
--gst-plugin-path=c:\xxx\lib\gstreamer-0.10 filesrc
location="c:\test\\mpeg2\\kit-dvbt-mpeg2-4CIF-1Mbps.ts" ! decodebin !
ffenc_mpeg2video bitrate=500000 dct-algo=int ! flutsmux ! udpsink
host=10.10.184.138 port=4567

[ ... ]

Execution ended after 2796857000 ns.

[ ... ]

Now, if you just run the same pipeline without flutsmux :

gst-launch-0.10.exe --gst-debug-no-color --gst-debug=flutsm ux:0
--gst-plugin-path=c:\xxx\lib\gstreamer-0.10 filesrc
location="c:\test\\mpeg2\\kit-dvbt-mpeg2-4CIF-1Mbps.ts" ! decodebin !
ffenc_mpeg2video bitrate=500000 dct-algo=int ! udpsink host=10.10.184.138
port=4567

[ ... ]

Execution ended after 6921831000 ns.

[ ... ]

I suspect timestamps in GstBuffer? not being correctly handled in flutsmux. I'm
still not familiar with GStreamer enough to tell more right now, but I'm
investigating the problem with my limited understanding of GStreamers
internals.

-- Damien Lespiau


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