There is a format in FFmpeg called "data" and every way I've tried using it causes the Output file does not contain any stream error.
I've tried:
ffmpeg -f data -i in.bin -f data out.bin
And:
ffmpeg -f data -i in.bin out.mp4
And, finally:
ffmpeg -i in.mp4 -f data out.mp4
The only offical documentation that exists AFAIK just says "Raw data".
What is this format?