Opened 5 weeks ago

Last modified 5 weeks ago

#10930 new defect

reencoding to x264 introduces playback stutter in Chrome

Reported by: diviaki Owned by:
Priority: normal Component: avcodec
Version: unspecified Keywords: libx264
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Summary of the bug:
Out of several videos one plays back with a weird jitter or stuttering in Chrome after I reencode it to x264. The original plays back normally.
Brave also affected, Safari, Firefox is not affected.
Happens in several ffmpeg versions across multiple platforms.

How to reproduce:

% ffmpeg -i source.mp4 -c:v libx264 re264.mp4
ffmpeg version N-68533-gcc774cd962-static arm64
built on 20240203

Attachments (2)

source-short.mp4​ (1.3 MB ) - added by diviaki 5 weeks ago.
re264.mp4​ (381.0 KB ) - added by diviaki 5 weeks ago.

Download all attachments as: .zip

Change History (3)

by diviaki, 5 weeks ago

Attachment: source-short.mp4​ added

by diviaki, 5 weeks ago

Attachment: re264.mp4​ added

comment:1 by diviaki, 5 weeks ago

The stutter intoduced propagated to a hls video converted from the bogus 264 video.

Other ffmpeg 264 encoders (h264_videotoolbox, libopenh264) does not suffer from this issue

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