On 09/25/2017 02:27 PM, Carl Eugen Hoyos wrote: > 2017-09-25 23:12 GMT+02:00 John Stebbins <stebb...@jetheaddev.com>: >> FYI, such a facility for marking frames to drop would also >> be useful for frame accurate playback of MP4 edit lists. > Do you have samples with edit lists that do not play > correctly with current FFmpeg? > > (Others will hopefully comment on this issue, I certainly don't > disagree with your analysis.) > >
I do not. Although I think I could get someone to construct one for me if needed. I don't use Apple products, but my understanding is that Apple video editing tools can be used to generate such files. I've only given the improved edit list handling in FFmpeg a brief look. But edit lists suffer from a very similar problem in that an edit can start on a non-IDR frame and thus you have to decode frames prior to the start of the edit in order to get frame accurate playback. I don't recall seeing anything that can handle this scenario in FFmpeg. -- John GnuPG fingerprint: D0EC B3DB C372 D1F1 0B01 83F0 49F1 D7B2 60D4 D0F7
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