bavc
wish: Duration display can also show legacy timecode
Would it be possible for some sort of 'legacy timecode' display if a timecode track exists?
I'm thinking of the following as a means of implementation: Get the timecode value of the first frame and then determine the timecode of the rest of the frames based on the framerate. As MKV files do not have a timecode track, they can contain timecode metadata tags (auto-generated by ffmpeg), so perhaps this could be read as well.
The main use case that I can think of is looking at a legacy engineer's report that uses the tapes timecode as its reference.
In terms of location, I think that there's enough space to place it next to the current duration display in the graph view, but there's no place to put it at the moment in the filter views. Perhaps a checkbox or preference could enable the legacy timecode?
Not sure if there's any demand by other users for including such a feature though.
I suggest this issue is better handled upstream in ffmpeg, such as adding that timecode value to the frame metadata. Cc'ing @richardpl.
