[FFmpeg-user] FFmpeg pipeline debugging

Alan Petrus dartagnan64b at gmail.com
Tue Mar 8 21:50:17 EET 2022


I am trying to figure out how FFmpeg command line tool chains commands and
runs them behind the scene and I'm wondering if it has concept of pipeline
and pipeline graphs much like Gstreamer has; For example,

If so, can someone please point me in the right direction to look up
documentation or examples of this case?

I'm trying to debug an issue with this pipeline (not outputting correct
codecs="" in dash manifest) :

 sudo ffmpeg -y -f v4l2 -input_format yuyv422 -video_size 1920x1080
-framerate 5 -i /dev/video0 -vcodec h264_v4l2m2m -pix_fmt yuv420p
-keyint_min 30 -g 30 -map 0:v -b:v 1000k -level 41 -profile:v 77 -f dash
-seg_duration 1 -streaming 1 -window_size 30 -remove_at_exit 1
-dash_segment_type 1 /dev/shm/source1/live.mpd

Thank you

More information about the ffmpeg-user mailing list