[Bug 709415] New: isomp4: duration less mp4 file with rtspsrc

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=709415
  GStreamer | gst-plugins-good | 1.2.0

           Summary: isomp4: duration less mp4 file with rtspsrc
    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: ---


Created an attachment (id=256450)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=256450)
GST_DEBUG=*:5

I'm using the following pipeline to mux an h264 stream in to mp4,
./gst-launch-1.0 -e rtspsrc location="rtsph://..." ! rtph264depay ! h264parse !
mp4mux faststart=true ! filesink location=...
the resulting file ends up without duration, if i use matroskamux i get a
druation.

This pipeline used to work in GStreamer 1.0.

I investigated the problem and it seems that all buffer handled by the mp4mux
has DTS = -1 and a correct PTS. This yields gst_qt_mux_add_buffer () will set
the buffer DTS = 0 and hence no duration.

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