[Libav-user] Help complete

[Slav]

Hello. I am trying to implement program which reads out plain images (ready
for some further usage) from video files, but got issues with sws_scale()
complaining about wrong AVFrame format:  "[swscaler @ 0x558ef00721a0] bad
src image pointers". So, I formulated an example where I try allocate
AVFrame with 4 different ways (found those on internet here and there) each
of which failing in different ways.
Could you please help me finish it:
https://github.com/SlavMFM/libav_bmp_example
Thanks in advance ^^
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