Hi,

there seems to be a regression on the playback of mpeg2 file.

Since 1.2.0, I have a mpeg2 file that doesn't play to end anymore;It stops after about 20s with the following message:

etrousset@etrousset-Vostro-420-Series ~/source_ext/gst-1.2.1/build_debug/bin $ ./gst-launch-1.0 playbin uri=file:///home/etrousset/source_ext/gst-1.2.1/build_debug/bin/122.mpeg 

(gst-plugin-scanner:5622): GStreamer-WARNING **: Failed to load plugin '/home/etrousset/source_ext/gst-1.2.1/build_debug/lib/gstreamer-1.0/libgstdfbvideosink.so': libdirectfb-1.7.so.0: cannot open shared object file: No such file or directory
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...

(gst-launch-1.0:5621): GStreamer-WARNING **: gstpad.c:4506:store_sticky_event:<dvdlpcmdec0:src> Sticky event misordering, got 'segment' before 'caps'

(gst-launch-1.0:5621): GStreamer-WARNING **: gstpad.c:4506:store_sticky_event:<'':decodepad2> Sticky event misordering, got 'segment' before 'caps'

(gst-launch-1.0:5621): GStreamer-WARNING **: gstpad.c:4506:store_sticky_event:<decodepad2:proxypad3> Sticky event misordering, got 'segment' before 'caps'
Redistribute latency...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstAudioSinkClock

** (gst-launch-1.0:5621): CRITICAL **: gst_video_decoder_allocate_output_frame: assertion `frame->output_buffer == NULL' failed
ERROR: from element /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstMpegPSDemux:mpegpsdemux0: Internal data stream error.
Additional debug info:
gstmpegdemux.c(2937): gst_flups_demux_loop (): /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstMpegPSDemux:mpegpsdemux0:
stream stopped, reason error
Execution ended after 0:00:20.006220559
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

Cheers, 
Eric T