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I'm using ffmpeg to trim a Zoom video recording (format: ISO Media, MP4 v2 [ISO 14496-14]) via this command:

ffmpeg \
  -ss 00:11:42 \
  -to 01:11:22 \
  -i input-original.mp4 \
  -c copy \
  output-trimmed.mp4

The input file looks great, but the output has a few dropped frames at the beginning, so for the first few seconds it looks like this:

[![enter image description here][1]][1]enter image description here

A few seconds later, it goes back to normal and it doesn't have any other issues. I'm wondering if there is a way to fix this problem.

EDIT: Actually, this seems to be a VLC-specific problem. Once I upload it to Vimeo, the weird frames go away. Still, I'd like to know if there is a way to prevent this. [1]: https://i.stack.imgur.com/fot19.png

I'm using ffmpeg to trim a Zoom video recording (format: ISO Media, MP4 v2 [ISO 14496-14]) via this command:

ffmpeg \
  -ss 00:11:42 \
  -to 01:11:22 \
  -i input-original.mp4 \
  -c copy \
  output-trimmed.mp4

The input file looks great, but the output has a few dropped frames at the beginning, so for the first few seconds it looks like this:

[![enter image description here][1]][1]

A few seconds later, it goes back to normal and it doesn't have any other issues. I'm wondering if there is a way to fix this problem.

EDIT: Actually, this seems to be a VLC-specific problem. Once I upload it to Vimeo, the weird frames go away. Still, I'd like to know if there is a way to prevent this. [1]: https://i.stack.imgur.com/fot19.png

I'm using ffmpeg to trim a Zoom video recording (format: ISO Media, MP4 v2 [ISO 14496-14]) via this command:

ffmpeg \
  -ss 00:11:42 \
  -to 01:11:22 \
  -i input-original.mp4 \
  -c copy \
  output-trimmed.mp4

The input file looks great, but the output has a few dropped frames at the beginning, so for the first few seconds it looks like this:

enter image description here

A few seconds later, it goes back to normal and it doesn't have any other issues. I'm wondering if there is a way to fix this problem.

EDIT: Actually, this seems to be a VLC-specific problem. Once I upload it to Vimeo, the weird frames go away. Still, I'd like to know if there is a way to prevent this.

added 170 characters in body; edited tags
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nachocab
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I'm using ffmpeg to trim a Zoom video recording (format: ISO Media, MP4 v2 [ISO 14496-14]) via this command:

ffmpeg \
  -ss 00:11:42 \
  -to 01:11:22 \
  -i input-original.mp4 \
  -c copy \
  output-trimmed.mp4

The input file looks great, but the output has a few dropped frames at the beginning, so for the first few seconds it looks like this:

enter image description here [![enter image description here][1]][1]

A few seconds later, it goes back to normal and it doesn't have any other issues. I'm wondering if there is a way to fix this problem.

EDIT: Actually, this seems to be a VLC-specific problem. Once I upload it to Vimeo, the weird frames go away. Still, I'd like to know if there is a way to prevent this. [1]: https://i.stack.imgur.com/fot19.png

I'm using ffmpeg to trim a Zoom video recording (format: ISO Media, MP4 v2 [ISO 14496-14]) via this command:

ffmpeg \
  -ss 00:11:42 \
  -to 01:11:22 \
  -i input-original.mp4 \
  -c copy \
  output-trimmed.mp4

The input file looks great, but the output has a few dropped frames at the beginning, so for the first few seconds it looks like this:

enter image description here

A few seconds later, it goes back to normal and it doesn't have any other issues. I'm wondering if there is a way to fix this problem.

I'm using ffmpeg to trim a Zoom video recording (format: ISO Media, MP4 v2 [ISO 14496-14]) via this command:

ffmpeg \
  -ss 00:11:42 \
  -to 01:11:22 \
  -i input-original.mp4 \
  -c copy \
  output-trimmed.mp4

The input file looks great, but the output has a few dropped frames at the beginning, so for the first few seconds it looks like this:

[![enter image description here][1]][1]

A few seconds later, it goes back to normal and it doesn't have any other issues. I'm wondering if there is a way to fix this problem.

EDIT: Actually, this seems to be a VLC-specific problem. Once I upload it to Vimeo, the weird frames go away. Still, I'd like to know if there is a way to prevent this. [1]: https://i.stack.imgur.com/fot19.png

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nachocab
  • 201
  • 3
  • 12

How to prevent ffmpeg from dropping frames when trimming?

I'm using ffmpeg to trim a Zoom video recording (format: ISO Media, MP4 v2 [ISO 14496-14]) via this command:

ffmpeg \
  -ss 00:11:42 \
  -to 01:11:22 \
  -i input-original.mp4 \
  -c copy \
  output-trimmed.mp4

The input file looks great, but the output has a few dropped frames at the beginning, so for the first few seconds it looks like this:

enter image description here

A few seconds later, it goes back to normal and it doesn't have any other issues. I'm wondering if there is a way to fix this problem.