From fb472e1a11a4e0caed2c3c91da01ea8e35d9e3f8 Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Tue, 13 Oct 2015 14:11:35 +0200 Subject: avconv: add support for Intel QSV-accelerated transcoding Signed-off-by: Luca Barbato --- doc/avconv.texi | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'doc') diff --git a/doc/avconv.texi b/doc/avconv.texi index 8e87fd671e..bee20396d6 100644 --- a/doc/avconv.texi +++ b/doc/avconv.texi @@ -602,6 +602,16 @@ Use VDPAU (Video Decode and Presentation API for Unix) hardware acceleration. @item dxva2 Use DXVA2 (DirectX Video Acceleration) hardware acceleration. + +@item qsv +Use the Intel QuickSync Video acceleration for video transcoding. + +Unlike most other values, this option does not enable accelerated decoding (that +is used automatically whenever a qsv decoder is selected), but accelerated +transcoding, without copying the frames into the system memory. + +For it to work, both the decoder and the encoder must support QSV acceleration +and no filters must be used. @end table This option has no effect if the selected hwaccel is not available or not @@ -628,6 +638,20 @@ is not specified, the value of the @var{DISPLAY} environment variable is used @item dxva2 For DXVA2, this option should contain the number of the display adapter to use. If this option is not specified, the default adapter is used. + +@item qsv +For QSV, this option corresponds to the valus of MFX_IMPL_* . Allowed values +are: +@table @option +@item auto +@item sw +@item hw +@item auto_any +@item hw_any +@item hw2 +@item hw3 +@item hw4 +@end table @end table @item -hwaccels -- cgit v1.2.3