<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style></style></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1>Hello,<o:p></o:p><o:p> </o:p>Yes. The files also contain audio. <o:p></o:p><o:p> </o:p>Playbin will not suit my needs. Playbin does indeed playback the stream.<o:p></o:p><o:p> </o:p>I want to separate out the video stream so that I can downsample the video.<o:p></o:p><o:p> </o:p>Is there a way to obtain the video stream?<o:p></o:p><o:p> </o:p>Regards,<o:p></o:p>Rand<o:p></o:p><o:p> </o:p>From: gstreamer-devel [mailto:gstreamer-devel-bounces@lists.freedesktop.org] On Behalf Of Nicolas Dufresne Sent: Thursday, November 30, 2017 6:00 PM To: Discussion of the development of and with GStreamer <gstreamer-devel@lists.freedesktop.org> Subject: Re: dash input no more pads<o:p></o:p><o:p> </o:p><div><div><o:p> </o:p><div><o:p> </o:p><div>Le 30 nov. 2017 4:44 PM, "Rand Graham" <<a href="mailto:rand.graham@lge.com">rand.graham@lge.com</a>> a écrit :<o:p></o:p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div>Hello,<o:p></o:p> <o:p></o:p>I am trying to playback a DASH input using a command line pipeline. I am getting a no more pads error. Can someone explain what is going wrong?<o:p></o:p></div></div></blockquote></div></div></div><div><o:p> </o:p></div><div>It says it failed linking qtdemux to h265parse, probably that you also have audio. The parse_launch does not generate smart code, try using playbin instead, it's specially designed to handle complex cases like dash.<o:p></o:p></div><div><div><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div> <o:p></o:p>As far as I can tell, the file has a quick time container with both audio and video. I am just trying to playback the video with my pipeline. <o:p></o:p> <o:p></o:p>This stream plays back when using playbin.<o:p></o:p> <o:p></o:p>My pipeline and the errors I see:<o:p></o:p> <o:p></o:p>gst-launch-1.0 souphttpsrc location="<a href="http://localhost:8100/streams/0/manifest.mpd" target="_blank">http://localhost:8100/streams/0/manifest.mpd</a>" ! dashdemux ! qtdemux ! h265parse ! mfxhevcdec ! fpsdisplaysink video-sink=mfxsink<o:p></o:p>Setting pipeline to PAUSED ...<o:p></o:p>libva info: VA-API version 0.99.0<o:p></o:p>libva info: va_getDriverName() returns 0<o:p></o:p>libva info: User requested driver 'iHD'<o:p></o:p>libva info: Trying to open /opt/intel/mediasdk/lib64/iHD_drv_video.so<o:p></o:p>libva info: Found init function __vaDriverInit_0_32<o:p></o:p>libva info: va_openDriver() returns 0<o:p></o:p>Pipeline is PREROLLING ...<o:p></o:p>Got context from element 'mfxsink0': gst.mfx.Aggregator=context, gst.mfx.Aggregator=(GstMfxTaskAggregator)NULL;<o:p></o:p>WARNING: from element /GstPipeline:pipeline0/GstQTDemux:qtdemux0: Delayed linking failed.<o:p></o:p>Additional debug info:<o:p></o:p>./grammar.y(506): gst_parse_no_more_pads (): /GstPipeline:pipeline0/GstQTDemux:qtdemux0:<o:p></o:p>failed delayed linking some pad of GstQTDemux named qtdemux0 to some pad of GstH265Parse named h265parse0<o:p></o:p>ERROR: from element /GstPipeline:pipeline0/GstDashDemux:dashdemux0: Internal data stream error.<o:p></o:p>Additional debug info:<o:p></o:p>gstadaptivedemux.c(2976): gst_adaptive_demux_stream_download_loop (): /GstPipeline:pipeline0/GstDashDemux:dashdemux0:<o:p></o:p>stream stopped, reason not-linked<o:p></o:p>ERROR: pipeline doesn't want to preroll.<o:p></o:p>Setting pipeline to NULL ...<o:p></o:p>Freeing pipeline ..<o:p></o:p> <o:p></o:p>Output of gst-discoverer:<o:p></o:p> <o:p></o:p>gst-discoverer-1.0 <a href="http://localhost:8100/streams/0/manifest.mpd" target="_blank">http://localhost:8100/streams/0/manifest.mpd</a><o:p></o:p>Analyzing <a href="http://localhost:8100/streams/0/manifest.mpd" target="_blank">http://localhost:8100/streams/0/manifest.mpd</a><o:p></o:p>Done discovering <a href="http://localhost:8100/streams/0/manifest.mpd" target="_blank">http://localhost:8100/streams/0/manifest.mpd</a><o:p></o:p> <o:p></o:p>Topology:<o:p></o:p> container: application/dash+xml<o:p></o:p> container: MPEG-4 AAC<o:p></o:p> audio: MPEG-4 AAC<o:p></o:p> container: Quicktime<o:p></o:p> video: H.265 (Main 10 Profile)<o:p></o:p> <o:p></o:p>Properties:<o:p></o:p> Duration: 1461:20:43.624687400<o:p></o:p> Seekable: yes<o:p></o:p> Tags: <o:p></o:p> audio codec: MPEG-4 AAC audio<o:p></o:p> maximum bitrate: 161152<o:p></o:p> bitrate: 157368<o:p></o:p> container format: ISO fMP4<o:p></o:p> nominal bitrate: 4294967295<o:p></o:p> video codec: H.265 / HEVC<o:p></o:p> <o:p></o:p> <o:p></o:p>Thanks,<o:p></o:p>Rand<o:p></o:p></div></div> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><o:p></o:p></blockquote></div><o:p> </o:p></div></div></div></div></body></html>