You will now have a file that freezes at the merge.ĭemux all Video and Audio files. Mux as normal, with or without subs, whatever you want in your final fixed copy. So I believe OP merging solo worked because he did not include subtitles, not because it was done separately.Ī solution for this would be ideal and it does seem to be something to do with timestamps being longer than the video and audio due to subtitles. I noticed no slowdown or freeze, it seemed to match with the audio fine.Ĭhinese a+b froze like OP has described, for roughly the same amount of time at which I described earlier, the 1.250s~. When I merged the English a+b, and the Chinese a+b, I found these results:Įnglish a+b basically didn't freeze at all, I noticed MPV's FPS dropped very slightly from 29.976 to about 28.740 FPS which it rose back up to 29.976 promptly. The English `a` file's duration was about 0.150s or so more than MPV actually played up to.The Chinese `a` file's duration was about 1.250s or so more than MPV actually played up to. One with a single English subtitle, and another with 2 Chinese subtitles (Traditional and Simplified). I made 2 split sample files, an a file and a b file. Rather than being related to merging video+audio at same/separately, it may be related to subtitles instead. I also believe I may know the reason as to why it's happening.
Because the actual files I'm working with intentionally has a black frame break it's hard to tell which is intended. ffplay will continue fairly quickly, but vlc has more of a break between the video sections.
This issue does NOT happen with `ffplay` or `vlc`. The audio truly does play seamlessly, except when you are holding `i` and debugging at which the freeze lasts a bit longer. When we move to the appended files frames, the FPS, bitrate, and some other values abruptly disappear or get nil'd to 0.
Holding `i` on the keyboard to show FPS and such while playing helps us debug here. I can confirm the player that this likely happened in is MPV. I can confirm this issue still happens as of v69.0.0 and I have more information that the OP has not provided.
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