FIlter works as part of video filtergraph(-vf) only

[captain-rr]

Hi there,

This works fine and all but for reasons that I cannot understand or debug, the filter doesn't seem to work when part of a -filter_complex chain.
I tried to isolate the problem and add a whole lot of logs but it even when performing nothing at all the same simple filtergraph works with -vf but fails with filter_complex without any errors.

Failure ffmpeg-20191124-172259.log
Success ffmpeg-20191124-172625.log

I'd really appreciate any help or even a direction to investigate.

[captain-rr]

The issue was the uninit failing whenf freeing unallocated pointers, filter_complex creates filters and immediately uninits them before actually peforming the filter graph just to figure out the formats

[moea]

Thanks for this - a fix would be appreciated