If there was already a subtitle file for the original file, simply shifting all subs past the cut point by the duration of the deleted portion may produce an offset of a few frames for the subtitles. The total duration of the output may deviate from the original total duration with the duration of the deleted part subtracted. I meant a scenario of deleting a part of a video not at the start or at the end and saving the result in copy mode in Avidemux. Quote from: diana0325 on December 27, 2020, 10:13:40 PMShould I be doing something on avi before doing the subs on aegi? If you still experience bad sync even with VP9 videos, then the nature of the problem must be different and we'd need to investigate deeper. Contrary to H.264 (AVC1), VP9 doesn't use frame reordering = no B-frames = no disagreement in timing between Aegisub and Avidemux. I would create subtitles in Aegisub to keep them in sync in Aegisub until the whole video is done, then shift all the subtitles by 1 frame before hardcoding them.Īlternatively, you could fetch a version of the video encoded with VP9. 16 ms (or rather 17 ms when rounded up) first frame delay in Avidemux indicates that the video has frame rate of 60 fps with one frame worth of B-frame delay. The precision is limited to 1/100 sec (10 ms), yes, but time shift is not limited to 20 ms according to. If the subtitle is embedded in the container video.mkv, you can do this: ffmpeg -i video.mkv -vf subtitlesvideo.mkv out.avi Note that the subtitles video filter opens the file separately, so if you are also Seekingin the same step, then the subtitles will start at the beginning of the subtitle file. 02, so in that case there is nothing I can do? 016 delay but I can't delay the subs like that on aegi, I can only do. Quote from: diana0325 on December 27, 2020, 10:13:40 PMFor instance for the video I was trying to hardsub when I open it on avidemux it shows a.
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