[Bug 768005] New: flvdemux: Gets confused when fed with different streams

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=768005

            Bug ID: 768005
           Summary: flvdemux: Gets confused when fed with different
                    streams
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: vivia at ahiru.eu
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Using the files from here:

https://ahiru.eu/~vivia/parts1to7.tar

$ gst-launch-1.0 splitmuxsrc location="part*.flv" name=d d.video ! queue !
h264parse ! matroskamux name=m ! queue ! filesink location=allparts2.mkv
d.audio ! aacparse ! queue ! m.

This works fine.

[fish syntax warning]
$ env GST_DEBUG=\*:3 gst-launch-1.0 multifilesrc location="part%02d.flv"
start-index=1 stop-index=7 ! queue ! flvdemux name=d d.video ! queue !
h264parse ! matroskamux name=m ! queue ! filesink location=allparts1.mkv
d.audio ! aacparse ! queue ! m.

[...]
0:00:01.216200161 22013       0xfbf320 WARN                flvdemux
gstflvdemux.c:1307:gst_flv_demux_video_negotiate:<d> unsupported video codec
tag 8
0:00:01.216265742 22013       0xfbf320 WARN                flvdemux
gstflvdemux.c:1311:gst_flv_demux_video_negotiate:<d> failed creating caps for
video pad
0:00:01.216353327 22013       0xfbf320 WARN                   queue
gstqueue.c:1541:gst_queue_loop:<queue0> error: Internal data flow error.
0:00:01.216420933 22013       0xfbf320 WARN                   queue
gstqueue.c:1541:gst_queue_loop:<queue0> error: streaming task paused, reason
error (-5)
ERROR: from element /GstPipeline:pipeline0/GstQueue:queue0: Internal data flow
error.
Additional debug info:
gstqueue.c(1541): gst_queue_loop (): /GstPipeline:pipeline0/GstQueue:queue0:
streaming task paused, reason error (-5)

The video codec tag 8 is completely bogus, the file is H264, like all the
previous ones. gst-discoverer and gst-play agree with me, as well as the first
example.

$ gst-launch-1.0 multifilesrc location="part%02d.flv" start-index=2
stop-index=7  ! queue ! flvdemux name=d d.video ! queue ! h264parse !
matroskamux name=m ! queue ! filesink location=allparts1.mkv d.audio ! aacparse
! queue ! m.

The resulting file is valid, but it only contains the contents of part02.flv .

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