Add basic mpv parameters to the documentation

[befabry]

Hello,

Thanks for this project, it's working quite fine after some debugging ! It was struggling a lot with buffering to keep up with 4K, and I had to downgrade video quality (even though I have the optic fiber).

As far as I understood, it wasn't using my mpv settings. Am I right ?

Consider adding basic setting example to the mpv conf such as

bestvideo[height<=1080] => lower stream quality to 1080p

hwdec=auto => auto-select an Hardware video acceleration decoding method

vo=gpu-next => see below, from their documentation

--ytdl-format='best[height<=1080]' --hwdec=auto --vo=gpu-next

The vaapi mode, if used with --vo=gpu or --vo=gpu-next most likely works with Intel and AMD GPUs only. It requires the opengl EGL backend if the GPU does not support drm modifiers.

nvdec and nvdec-copy are the newest, and recommended method to do hardware decoding on Nvidia GPUs.

cuda and cuda-copy are an older implementation of hardware decoding on Nvidia GPUs that uses Nvidia's bitstream parsers rather than FFmpeg's. This can lead to feature deficiencies, such as incorrect playback of HDR content, and nvdec/nvdec-copy should always be preferred unless you specifically need Nvidia's deinterlacing algorithms. To use this deinterlacing you must pass the option: vd-lavc-o=deint=[weave|bob|adaptive]. Pass weave (or leave the option unset) to not attempt any deinterlacing.

[Fredolx]

Not a bad idea, feel free to contribute such documentation, if you don't I'll get around to it at some point.

[befabry]

It's been a busy week, I'll try to give it a shot this week-end