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Out of sync audio after processing video with repeated frames
The 2019 Stack Overflow Developer Survey Results Are Inffmpeg: images to 29.97fps mpeg2, audio not syncFFmpeg convert video w/ dropped frames, out of syncUse FFMPEG for Video to Frames, then Frames to Video with Original SoundExtract video frames display time and frame numberffmpeg - complex filter putting 2 videos side by side results in audio out of syncProblems with joining videos in FFmpeg with a cross-fade effect (buffer queue overflow, frames dropped)ffmpeg slow motion video with audioffmpeg: .ogv to .mp4 - audio video not synchronizedffmpeg: Buffer queue overflow error appears when adding audio with amix to overlay filtered videoVideo cut with missing frames in FFmpeg
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
So I've been succesfully trimming videos with ffmpeg using a command someone provided here, this is it:
-vf "select='between(ss,ss)+between(ss,ss)',setpts=N/FRAME_RATE/TB" -af "aselect='between(ss,ss)+between(ss,ss)',asetpts=N/SR/TB" output.mp4
But now I'm facing an issue. I have a videofile with -it seems- lots of repeated frames, very inconsistent and apparently the command above is telling ffmpeg to get rid of those repeated frames so the output file results in a smooth and consistent framerate. Sounds good but by doing so it shortens the original time and therefore the output file plays very fast. The audio remains at its original speed so they naturally get out of sync.
So, first, I like the idea of getting rid of repeated frames as the output file plays smoothly but at the same time I need ffmpeg to keep the original speed for obvious reasons and plus the audio shouldn't get out of sync in that case, right?
In short, what I need:
Adding an option to the command above that let me keep the original speed even after getting rid of repeated frames so the output plays smoothly and the audio is synchronized.
audio video ffmpeg sync
asked yesterday
midishmidish
11
add a comment |
So I've been succesfully trimming videos with ffmpeg using a command someone provided here, this is it:
-vf "select='between(ss,ss)+between(ss,ss)',setpts=N/FRAME_RATE/TB" -af "aselect='between(ss,ss)+between(ss,ss)',asetpts=N/SR/TB" output.mp4
But now I'm facing an issue. I have a videofile with -it seems- lots of repeated frames, very inconsistent and apparently the command above is telling ffmpeg to get rid of those repeated frames so the output file results in a smooth and consistent framerate. Sounds good but by doing so it shortens the original time and therefore the output file plays very fast. The audio remains at its original speed so they naturally get out of sync.
So, first, I like the idea of getting rid of repeated frames as the output file plays smoothly but at the same time I need ffmpeg to keep the original speed for obvious reasons and plus the audio shouldn't get out of sync in that case, right?
In short, what I need:
Adding an option to the command above that let me keep the original speed even after getting rid of repeated frames so the output plays smoothly and the audio is synchronized.
audio video ffmpeg sync
asked yesterday
midishmidish
11
Paste the readout fromffmpeg -i thisvideo -vf vfrdet -f null -
– Gyan
yesterday
I'm afraid my ffmpeg version is too old to perform that filter (3.2). I'm on debian stable and not even the backports repos have the newer version so...
– midish
yesterday
add a comment |
So I've been succesfully trimming videos with ffmpeg using a command someone provided here, this is it:
-vf "select='between(ss,ss)+between(ss,ss)',setpts=N/FRAME_RATE/TB" -af "aselect='between(ss,ss)+between(ss,ss)',asetpts=N/SR/TB" output.mp4
But now I'm facing an issue. I have a videofile with -it seems- lots of repeated frames, very inconsistent and apparently the command above is telling ffmpeg to get rid of those repeated frames so the output file results in a smooth and consistent framerate. Sounds good but by doing so it shortens the original time and therefore the output file plays very fast. The audio remains at its original speed so they naturally get out of sync.
So, first, I like the idea of getting rid of repeated frames as the output file plays smoothly but at the same time I need ffmpeg to keep the original speed for obvious reasons and plus the audio shouldn't get out of sync in that case, right?
In short, what I need:
Adding an option to the command above that let me keep the original speed even after getting rid of repeated frames so the output plays smoothly and the audio is synchronized.
audio video ffmpeg sync
asked yesterday
midishmidish
11
So I've been succesfully trimming videos with ffmpeg using a command someone provided here, this is it:
-vf "select='between(ss,ss)+between(ss,ss)',setpts=N/FRAME_RATE/TB" -af "aselect='between(ss,ss)+between(ss,ss)',asetpts=N/SR/TB" output.mp4
But now I'm facing an issue. I have a videofile with -it seems- lots of repeated frames, very inconsistent and apparently the command above is telling ffmpeg to get rid of those repeated frames so the output file results in a smooth and consistent framerate. Sounds good but by doing so it shortens the original time and therefore the output file plays very fast. The audio remains at its original speed so they naturally get out of sync.
So, first, I like the idea of getting rid of repeated frames as the output file plays smoothly but at the same time I need ffmpeg to keep the original speed for obvious reasons and plus the audio shouldn't get out of sync in that case, right?
In short, what I need:
Adding an option to the command above that let me keep the original speed even after getting rid of repeated frames so the output plays smoothly and the audio is synchronized.
audio video ffmpeg sync
audio video ffmpeg sync
asked yesterday
midishmidish
11
asked yesterday
midishmidish
11
edited yesterday
midish
asked yesterday
midishmidish
11
asked yesterday
midishmidish
11
asked yesterday
midishmidish
11
11
Paste the readout fromffmpeg -i thisvideo -vf vfrdet -f null -
– Gyan
yesterday
I'm afraid my ffmpeg version is too old to perform that filter (3.2). I'm on debian stable and not even the backports repos have the newer version so...
– midish
yesterday
add a comment |
Paste the readout fromffmpeg -i thisvideo -vf vfrdet -f null -
– Gyan
yesterday
I'm afraid my ffmpeg version is too old to perform that filter (3.2). I'm on debian stable and not even the backports repos have the newer version so...
– midish
yesterday
Paste the readout from
ffmpeg -i thisvideo -vf vfrdet -f null -– Gyan
yesterday
Paste the readout from
ffmpeg -i thisvideo -vf vfrdet -f null -– Gyan
yesterday
I'm afraid my ffmpeg version is too old to perform that filter (3.2). I'm on debian stable and not even the backports repos have the newer version so...
– midish
yesterday
I'm afraid my ffmpeg version is too old to perform that filter (3.2). I'm on debian stable and not even the backports repos have the newer version so...
– midish
yesterday
add a comment |
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Paste the readout from
ffmpeg -i thisvideo -vf vfrdet -f null -– Gyan
yesterday
I'm afraid my ffmpeg version is too old to perform that filter (3.2). I'm on debian stable and not even the backports repos have the newer version so...
– midish
yesterday