RFR: 8336277: Colors are incorrect when playing H.265/HEVC on Windows 11

[Andy Goryachev]

On Wed, 31 Jul 2024 03:45:20 GMT, Alexander Matveev <almatvee at openjdk.org> wrote:

> - For some reason H.265 decoder on Windows accepts proposed media format without error, but does not actually change output format.
> - For 8-bit we proposed IYUV, but decoder outputs NV12. For 10-bit we proposed NV12, but decoder outputs P010. As result colors where not correct during rendering.
> - To detect such condition we will propose media format and then read it back to determine actual decoder output format.
> - Added color conversion for P010 format, which was missing. P010 conversion is done in two stages (P010->NV12->IYUV), since color converter does not support direct conversion from P010 to IYUV.
> - Added debug trace for formats. Disabled by default.

This might sound silly, but these formats seem to differ by the way color bits are laid out in memory - would it be possible to write a utility that does the direct conversion instead of calling two conversion methods?

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PR Comment: https://git.openjdk.org/jfx/pull/1525#issuecomment-2263322069