Skip to content
GitLab
Projects Groups Topics Snippets
  • /
  • Help
    • Help
    • Support
    • Community forum
    • Submit feedback
    • Contribute to GitLab
  • Register
  • Sign in
  • gst-libav gst-libav
  • Project information
    • Project information
    • Activity
    • Labels
    • Members
  • Repository
    • Repository
    • Files
    • Commits
    • Branches
    • Tags
    • Contributor statistics
    • Graph
    • Compare revisions
  • Issues 54
    • Issues 54
    • List
    • Boards
    • Service Desk
    • Milestones
  • Merge requests 2
    • Merge requests 2
  • CI/CD
    • CI/CD
    • Pipelines
    • Jobs
    • Schedules
  • Deployments
    • Deployments
    • Environments
    • Releases
  • Packages and registries
    • Packages and registries
    • Container Registry
  • Monitor
    • Monitor
    • Incidents
  • Analytics
    • Analytics
    • Value stream
    • CI/CD
    • Repository
  • Snippets
    • Snippets
  • Activity
  • Graph
  • Create a new issue
  • Jobs
  • Commits
  • Issue Boards
Collapse sidebar
  • GStreamerGStreamer
  • gst-libavgst-libav
  • Issues
  • #84
Closed (moved) (moved)
Open
Issue created Nov 17, 2020 by Loic Martin@loicmartin38

avenc_dnxhd : mxf encoded file not readable by VLC or AfterEffects

Encoder DNxHD (avenc_dnxhd) / GStreamer 1.18.0 / Windows 10

I use encodebin and appsrc, output container is MXF, output size/fps is 1920x1080/30.0, I grab encoder avenc_dnxhd in callback deep_element_added, I set the output bitrate to 120Mbps, all is ok here.

The problem is that my output is not playable by VLC 3.0.11, it says "Unidentified codec:VLC could not identify the audio or video codec". It is not playable in After Effects too. But I can play it with gst-launch playbin (command lines) and MrViewer.

I fix it by using the following ffmpeg command on the encoded file : ffmpeg -i dnxhd_120Mbits.mxf -vcodec copy -acodec copy dnxhd_120Mbits_ffmpeg.mxf I also noticed that the fixed file is 200KB more than the problematic file.

Links to files :

dnxhd_120Mbits.mxf

dnxhd_120Mbits_ffmpeg.mxf

Assignee
Assign to
Time tracking