Feature request: Piping raw video in/out of custom process

Hi @kokorin,

I’d love to have support in Jaffree for piping raw video in and out of my own custom process, specifically to be able to do something similar to this shell command:

ffmpeg -i input.mp4 -f rawvideo -pix_fmt yuv444p pipe: | ./custom-video-processor | ffmpeg -f rawvideo -r 29.97 -s 320x240 -pix_fmt yuv444p -i pipe: -f mov output.mp4

I’ve made my own hacky implementation by copying your FFmpeg class as a proof of concept. It gets the job done, but it would great to either see a proper implementation that allows the above or at least it would be nice if you could also invoke setStdInWriter as part of creating ProcessHandler in execute(), which would allow people to subclass FFmpeg easily for a use case like this.

[kokorin]

@jonfryd please, check 0.8.0 release. Will be available in maven central in a few hours.

[jonfryd]

… And I’m going to switch to PipeInput + PipeOutput as a result of my findings.