[Libav-user] Buffer size align required for encoding

aleniuk alenuke at yandex.ru
Mon Apr 25 13:56:13 CEST 2016

Ffmpeg, version 3.0.1

I use buffer, allocated av_image_alloc(align = 1).

For some reasons of image processing, I can't set align to 32 (it will cause
the rewrighting of some old code, made for ffmpeg 2.3 ).

Is it completely safe to give this buffer (in AVFrame ofcourse) to
avcodec_encode_video2 ?

Or avcodec_encode_video2 requires some minimal alignment, like

av_image_alloc() makes *each linesize* aligned to specified value. Is it
necessary for avcodec_encode_video2 ?

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