From 6bd021e4ee30275ba6fe7d2e306909b57fd368dd Mon Sep 17 00:00:00 2001 From: wm4 Date: Mon, 23 May 2016 23:46:58 +0200 Subject: manpage: adjust dxva2 description --- DOCS/man/options.rst | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'DOCS') diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst index b583e63b38..f46990f404 100644 --- a/DOCS/man/options.rst +++ b/DOCS/man/options.rst @@ -656,9 +656,12 @@ Video either BT.601 or BT.709, a forced but correct RGB conversion is performed. Otherwise, the result will be incorrect. - ``dxva2`` is not safe. It uses either BT.601 or BT.709 for forced RGB - conversion, and which colorspace is used is driver-dependent. This can - give incorrect results even with completely ordinary video sources. + ``dxva2`` is not safe. It appears to always use BT.601 for forced RGB + conversion, but actual behavior depends on the GPU drivers. Some drivers + appear to convert to limited range RGB, which gives a faded appearance. + In addition to driver-specific behavior, global system settings might + affect this additionally. This can give incorrect results even with + completely ordinary video sources. All other methods, in particular the copy-back methods (like ``dxva2-copy`` etc.) are either fully safe, or not worse than software -- cgit v1.2.3