On Wed, 16 Mar 2022, James Almer wrote:
On 3/14/2022 6:06 PM, Marton Balint wrote:
Output buffer alignment might be different to ZIMG_ALIGNMENT or it may not
be
aligned at all if a downstream filter (e.g. vf_pad) intentionally
misaligns it.
av_frame_get_buffer() align parameter is used to align linesizes, not
buffers. av_malloc() has a hardcoded alignment defined at compile time based
on configure settings.
Good point.
If what you need is aligned data pointers, you should either use the trick i
used in the libdav1d wrapper, or change av_malloc() in order to use
av_cpu_max_align().
Actually av_cpu_max_align() also depends on compile time, so your trick is
the only way to ensure ZIMG alignment as far as I see...
Regards,
Marton
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