[FFmpeg-devel] [PATCH] avfilter/frames: Ensure frames are writable when processing in-place

[Soft Works]

> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of
> Soft Works
> Sent: Monday, 27 September 2021 14:07
> To: ffmpeg-devel at ffmpeg.org
> Subject: [FFmpeg-devel] [PATCH] avfilter/frames: Ensure frames are
> writable when processing in-place
> 
> With the introduction of subtitle filtering, subsequent video frames
> which are sharing the same data won't be as rare as this happened
> to occur yet.
> Ensuring per-frame uniqueness when data is modified is not only
> important
> to avoid issues in the future, but a common API requirement anyway.

IIUC ;-)