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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hello all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am trying to playback an mpeg2 TS that is being sent via udp to the loopback interface.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The video doesn’t playback. I get a blank video window. I don’t get much information on what the problem might be. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>When setting GST_DEBUG to 3. I see a FIXME that says something about a “Refcounting issue”<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Can someone tell me why gstreamer is unable to play this back?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>gst-launch-1.0 udpsrc multicast-iface=lo uri=udp://231.8.6.7:5309 ! tsdemux ! mpegvideoparse ! mfxmpeg2dec ! autovideosink<o:p></o:p></p><p class=MsoNormal>Setting pipeline to PAUSED ...<o:p></o:p></p><p class=MsoNormal>libva info: VA-API version 1.1.0<o:p></o:p></p><p class=MsoNormal>libva info: va_getDriverName() returns 0<o:p></o:p></p><p class=MsoNormal>libva info: User requested driver 'iHD'<o:p></o:p></p><p class=MsoNormal>libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so<o:p></o:p></p><p class=MsoNormal>libva info: Found init function __vaDriverInit_1_1<o:p></o:p></p><p class=MsoNormal>libva info: va_openDriver() returns 0<o:p></o:p></p><p class=MsoNormal>libva info: VA-API version 1.1.0<o:p></o:p></p><p class=MsoNormal>libva info: va_getDriverName() returns 0<o:p></o:p></p><p class=MsoNormal>libva info: User requested driver 'iHD'<o:p></o:p></p><p class=MsoNormal>libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so<o:p></o:p></p><p class=MsoNormal>libva info: Found init function __vaDriverInit_1_1<o:p></o:p></p><p class=MsoNormal>libva info: va_openDriver() returns 0<o:p></o:p></p><p class=MsoNormal>Pipeline is live and does not need PREROLL ...<o:p></o:p></p><p class=MsoNormal>0:00:00.028438146 3772 0xc79290 WARN structure gststructure.c:1832:priv_gst_structure_append_to_gstring: No value transform to serialize field 'gst.mfx.Aggregator' of type 'GstMfxTaskAggregator'<o:p></o:p></p><p class=MsoNormal>Got context from element 'mfxsink0': gst.mfx.Aggregator=context, gst.mfx.Aggregator=(GstMfxTaskAggregator)NULL;<o:p></o:p></p><p class=MsoNormal>Setting pipeline to PLAYING ...<o:p></o:p></p><p class=MsoNormal>New clock: GstSystemClock<o:p></o:p></p><p class=MsoNormal>0:00:00.080719063 3772 0xc09e30 FIXME mpegtsbase mpegtsbase.c:915:mpegts_base_activate_program: Refcounting issue. Setting a known PSI PID (0x0014) as known PES<o:p></o:p></p><p class=MsoNormal>0:00:00.080769332 3772 0xc09e30 WARN tsdemux tsdemux.c:1591:create_pad_for_stream: AC3 stream type found but no guaranteed way found to differentiate between AC3 and EAC3. Assuming plain AC3.<o:p></o:p></p><p class=MsoNormal>0:00:00.152900772 3772 0xc09e30 FIXME videodecoder gstvideodecoder.c:933:gst_video_decoder_drain_out:<mfxdec_mpeg2-0> Sub-class should implement drain(<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ffplay is able to playback the stream. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ffprobe gives the following info.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>[mpeg2video @ 0x1581180] Invalid frame dimensions 0x0.<o:p></o:p></p><p class=MsoNormal> Last message repeated 1 times<o:p></o:p></p><p class=MsoNormal>Input #0, mpegts, from 'udp://@231.8.6.7:5309':<o:p></o:p></p><p class=MsoNormal> Duration: N/A, start: 92814.991011, bitrate: 18684 kb/s<o:p></o:p></p><p class=MsoNormal> Program 1 <o:p></o:p></p><p class=MsoNormal> Stream #0:0[0x11]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, smpte170m), 1920x1080 [SAR 1:1 DAR 16:9], 18300 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc<o:p></o:p></p><p class=MsoNormal> Stream #0:1[0x14]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 384 kb/<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-family:Consolas'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:Consolas'>Rand<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>