Editing WEBM videos causes output to have incorrect (lower) framerate

[b02860de585071a2]

Android 14, app version 6.28.1 (396) from GitHub releases.

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Information:

When trimming a WEBM video (typically VP8/VP9 codec) that is >30fps, the resulting output file will be reduced to 30fps.

This only occurs when the source file is WEBM, regardless of output format.

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To reproduce:

• Suppose we have 2 video files (both at 1920x1080, 60fps) named test.webm and test.mp4.

• Trimming test.webmwill result in a 30fps output, no matter what the extension is changed to (unwanted behavior).

• Trimming test.mp4 will result in a 60fps output, even if the extension is changed to .webm (correct behavior).

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Assuming the app uses ffmpeg, this can be mitigated by adding the following to the command line arguments:

-filter:v -fps=source_fps

This filter forces source framerate to be taken into account, which for some reason is not the default behavior only for .webm. There are other solutions available as well.

[inson1]

@b02860de585071a2 SMT apps were sold to ad company. Fork is here https://github.com/FossifyOrg