<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=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hello,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am trying to playback an DASH stream. I am currently getting an error as shown below.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>It seems like the pipeline fails before it attempts to demux and parse the video.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Why does it say not_negotiated?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>gst-launch-1.0 souphttpsrc location="http://localhost:8100/streams/0/manifest.mpd" ! dashdemux ! queue ! qtdemux ! queue ! decodebin ! fpsdisplaysink video-sink=mfxsink<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 0.99.0<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 /opt/intel/mediasdk/lib64/iHD_drv_video.so<o:p></o:p></p><p class=MsoNormal>libva info: Found init function __vaDriverInit_0_32<o:p></o:p></p><p class=MsoNormal>libva info: va_openDriver() returns 0<o:p></o:p></p><p class=MsoNormal>Pipeline is PREROLLING ...<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>Redistribute latency...<o:p></o:p></p><p class=MsoNormal>Redistribute latency...<o:p></o:p></p><p class=MsoNormal>ERROR: from element /GstPipeline:pipeline0/GstDashDemux:dashdemux0: GStreamer encountered a general stream error.<o:p></o:p></p><p class=MsoNormal>Additional debug info:<o:p></o:p></p><p class=MsoNormal>gstadaptivedemux.c(2148): _src_chain (): /GstPipeline:pipeline0/GstDashDemux:dashdemux0:<o:p></o:p></p><p class=MsoNormal>stream stopped, reason not-negotiated<o:p></o:p></p><p class=MsoNormal>ERROR: pipeline doesn't want to preroll.<o:p></o:p></p><p class=MsoNormal>Setting pipeline to NULL ...<o:p></o:p></p><p class=MsoNormal>Freeing pipeline ...<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-family:Consolas'>Thanks,<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>