[FFmpeg-user] How to lossless crop mp4 videos

Android PowerUser tschikruma at gmail.com
Mon Aug 16 01:32:42 EEST 2021

That always depends on the codec and probably also on the bit rate and
resolution.  MP4 is just a container format.

Ulf Zibis <Ulf.Zibis at cosoco.de> schrieb am Mo., 16. Aug. 2021, 00:28:

> Hi,
> if I understand correct, mp4 videos are encoded in blocks of 16x16 pixels.
> I I'm wondering if I could crop a video by multiples of 16 pixels without
> reencoding the remaining blocks.
> -Ulf
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