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authorAnton Khirnov <anton@khirnov.net>2015-10-13 14:11:35 +0200
committerAnton Khirnov <anton@khirnov.net>2015-10-16 20:01:37 +0200
commitfb472e1a11a4e0caed2c3c91da01ea8e35d9e3f8 (patch)
tree5ddb316f55a9f62ffd64357c0db583a7fe8398a2 /doc
parentdc923bc23b3efd949d0bf67ff1abdb95059e5843 (diff)
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avconv: add support for Intel QSV-accelerated transcoding
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Diffstat (limited to 'doc')
-rw-r--r--doc/avconv.texi24
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/avconv.texi b/doc/avconv.texi
index 8e87fd6..bee2039 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
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