webp muxer seeks backwards
|Reported by:||ronag||Owned by:|
|Blocking:||Reproduced by developer:||no|
|Analyzed by developer:||no|
The webp muxer needs to seek backwards.
Currently when e.g. outputting to a pipe the output will be corrupt.
ffmpeg -i file.png -f webp - > test.webp
Should probably throw an error at least?
Though, I believe it should be possible to implement the muxer in such a way that it doesn't write to output until the header has all required information.