EDL demuxer does not work well with VC-1 video codec segments...
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Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 25/100
Research direction
Start with the EDL demuxer and reproduce both command lines using the linked VC-1 sample file. Compare log1.txt and log2.txt around segment transitions; done means repeated VC-1 segments play without staggered output, video PTS errors, or freezing after the first segment.
Written by the indexing model from the issue text.
Description
Important Information
mpv version:
mpv 0.34.0-198-gbc9805c71a
Reproduction steps
I've got an EDL containing segments of video using the VC-1 codec and mpv acts screwy.
The following works but results in a staggered output stream and video PTS error at the beginning of every segment after the first:
mpv "edl://test.mkv,10,1;test.mkv,10,1;test.mkv,10,1;test.mkv,10,1;test.mkv,10,1;test.mkv,10,1;test.mkv,10,1" --log-file=log2.txt
The following just completely freezes after the first segment:
mpv "edl://!delay_open,media_type=video;test.mkv,10,1;test.mkv,10,1;test.mkv,10,1;test.mkv,10,1;test.mkv,10,1;test.mkv,10,1;test.mkv,10,1" --log-file=log2.txt
I use EDLs a lot and with a variety of codecs, but I have not experienced this with any other video codec.
Sample files
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