<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">    I have been unable to decode H265 10-bit MXF formats from Canon XF705 using GStreamer v1.14.1<o:p class=""></o:p>My goal is to transcode into H264 with a GStreamer pipeline something like this (link to input video file is below):<o:p class=""></o:p>gst-launch-1.0 filesrc location=A003C002H1901045W_CANON.MXF ! qtdemux ! h265parse ! avdec_h265 ! videoconvert ! videoscale ! video/x-raw,width=1280,height=720 ! x264enc ! h264parse ! queue ! mp4mux ! filesink location=video.mp4<o:p class=""></o:p>Setting pipeline to PAUSED, PREROLLING ...<o:p class=""></o:p>ERROR: from element /GstPipeline:pipeline0/GstQTDemux:qtdemux0: This file is invalid and cannot be played.<o:p class=""></o:p>Additional debug info:<o:p class=""></o:p>qtdemux.c(747): gst_qtdemux_pull_atom (): /GstPipeline:pipeline0/GstQTDemux:qtdemux0:<o:p class=""></o:p>atom has bogus size 101591860<o:p class=""></o:p>ERROR: pipeline doesn't want to preroll.<o:p class=""></o:p><o:p class=""> </o:p> I have had similar errors with decodebin, qtdemux, mxfdemux, and avdemux_mxf as in the examples below.<o:p class=""></o:p> Here are some of the pipelines I have unsuccessfully tried:<o:p class=""></o:p> gst-launch-1.0 -v filesrc location=A003C002H1901045W_CANON.MXF ! qtdemux ! fakesink Setting pipeline to PAUSED, PREROLLING ... ERROR: from element /GstPipeline:pipeline0/GstQTDemux:qtdemux0: This file is invalid and cannot be played. Additional debug info: qtdemux.c(747): gst_qtdemux_pull_atom (): /GstPipeline:pipeline0/GstQTDemux:qtdemux0: atom has bogus size 101591860 ERROR: pipeline doesn't want to preroll.<o:p class=""></o:p><o:p class=""> </o:p>gst-launch-1.0 -v filesrc location=A003C002H1901045W_CANON.MXF ! mxfdemux ! h265parse ! fakesink Setting pipeline to PAUSED, PREROLLING ... WARNING: from element /GstPipeline:pipeline0/GstMXFDemux:mxfdemux0: Delayed linking failed. Additional debug info: ./grammar.y(510): gst_parse_no_more_pads (): /GstPipeline:pipeline0/GstMXFDemux:mxfdemux0: failed delayed linking some pad of GstMXFDemux named mxfdemux0 to some pad of GstH265Parse named h265parse0 ERROR: from element /GstPipeline:pipeline0/GstMXFDemux:mxfdemux0: Internal data stream error. Additional debug info: mxfdemux.c(3257): gst_mxf_demux_loop (): /GstPipeline:pipeline0/GstMXFDemux:mxfdemux0: ERROR: pipeline doesn't want to preroll.<o:p class=""></o:p><o:p class=""> </o:p>gst-launch-1.0 -v filesrc location=A003C002H1901045W_CANON.MXF ! avdemux_mxf ! fakesink Setting pipeline to PAUSED, PREROLLING ... WARNING: from element /GstPipeline:pipeline0/avdemux_mxf:avdemux_mxf0: Delayed linking failed. Additional debug info: ./grammar.y(510): gst_parse_no_more_pads (): /GstPipeline:pipeline0/avdemux_mxf:avdemux_mxf0: failed delayed linking some pad of avdemux_mxf named avdemux_mxf0 to some pad of GstFakeSink named fakesink0 ERROR: from element /GstPipeline:pipeline0/avdemux_mxf:avdemux_mxf0: Internal data stream error. Additional debug info: gstavdemux.c(1590): gst_ffmpegdemux_loop (): /GstPipeline:pipeline0/avdemux_mxf:avdemux_mxf0: streaming stopped, reason error (-5) ERROR: pipeline doesn't want to preroll.<o:p class=""></o:p><o:p class=""> </o:p>Example file download: <a href="https://www.dropbox.com/sh/q5m7cxgneq5z5h3/AAAh-d3FdhouZ2bFv2FajR18a?dl=0" class="">https://www.dropbox.com/sh/q5m7cxgneq5z5h3/AAAh-d3FdhouZ2bFv2FajR18a?dl=0</a> (note: Adobe Premiere can decode this file. Quicktime and VLC cannot)<o:p class=""></o:p>Here are some stats on this file:<o:p class=""></o:p> ffprobe -hide_banner -show_format -show_streams -print_format json A003C002H1901045W_CANON.MXF Metadata: uid : 3b6f6487-8405-4901-802e-242719000075 generation_uid : 3b6f6487-8405-4903-802e-242719000075 company_name : CANON product_name : XF705 product_version : 1.00 product_uid : 060e2b34-0401-010d-0e15-005658460400 Duration: 00:00:16.02, start: 0.000000, bitrate: 157466 kb/s Stream #0:0: Video: none, none(progressive), 3840x2160, SAR 1:1 DAR 16:9, 9.94 fps, 59.94 tbr, 59.94 tbn, 59.94 tbc "codec_type": "video", "codec_tag": "0x0000", "width": 3840, "height": 2160, "has_b_frames": 0, "r_frame_rate": "60000/1001",<o:p class=""></o:p><o:p class=""> </o:p>mediainfo A003C002H1901045W_CANON.MXF Format : MXF Format version : 1.3 Format profile : OP-1a Writing application : CANON XF705 1.00 Codec ID : 0E15000402100001-0E15000500013000 Color space : YUV Chroma subsampling : 4:2:2 Bit depth : 10 bits Scan type : Progressive<o:p class=""></o:p> </body></html>