Reverse playback of 4K movies hangs on loop (after reaching the first frame)

ggarra13 / mrv2

Professional player and review tool for vfx, animation and computer graphics.

https://mrv2.sourceforge.io

BSD 3-Clause "New" or "Revised" License

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Reverse playback of 4K movies hangs on loop (after reaching the first frame) #229

Closed ggarra13 closed 3 months ago

ggarra13 commented 3 months ago

It is a bug in tlRender which can be observed in the Sparks* AWSF movie.

ggarra13 commented 3 months ago

Improved in v1.1.6.

If the movie is started stopped the cache is now extended in the back direction, effectively starting from the end of the movie and the threads will read that portion of the cache backwards. This fixes most 2K movie trailers.

ggarra13 commented 3 months ago

Fixed completely for v1.1.6. Reverse playback and reverse seeking is now better than OpenRV on all 4K movies I tried. 8K movies are still an issue though.