Replaced by the faster i420_nv12 filter.

Mainly used by CVPX.

Since memset is used to set back pixels.

P010 is on MSB, and VLC_CODEC_I420_10B/VLC_CODEC_I420_10L are on LSB, so we
need to shift bits by 6 when doing the conversion. VLC_CODEC_I420_10L should be
used instead of VLC_CODEC_I420_10B since it's little endian.

It "worked" only because the conversion was tested while downloading and
uploading, so the download error was canceled by the upload error. This fixes
screenshot colors.

In order to use Uswc when copying packer pictures (RGB/YUYV).

This commit improve the Y plane copy speed from GPU images.

but codec is set.

Additionally rename 7Z_OPTS to 7ZIP_OPTS, to match the 7ZIP program
variable name.

happens when seeking outside of stream/on new stream ahead

can't properly handle restarts on radio streams

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

"sub-file" path expects native separator and not slashes.

Closes #19976
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Fix #19538