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-rw-r--r--DOCS/man/en/vo.rst21
1 files changed, 14 insertions, 7 deletions
diff --git a/DOCS/man/en/vo.rst b/DOCS/man/en/vo.rst
index 6b6d503219..c57f25f125 100644
--- a/DOCS/man/en/vo.rst
+++ b/DOCS/man/en/vo.rst
@@ -454,13 +454,20 @@ Available video output drivers are:
Default is 128x256x64.
Sizes must be a power of two, and 256 at most.
- ``alpha``
- Try to create a framebuffer with alpha component. This only makes sense
- if the video contains alpha information (which is extremely rare). May
- not be supported on all platforms. If alpha framebuffers are
- unavailable, it silently falls back on a normal framebuffer. Note
- that when using FBO indirections (such as with ``opengl-hq``), an FBO
- format with alpha must be specified with the ``fbo-format`` option.
+ ``alpha=<blend|yes|no>``
+ Decides what to do if the input has an alpha component (default: blend).
+
+ blend
+ Blend the frame against a black background.
+ yes
+ Try to create a framebuffer with alpha component. This only makes sense
+ if the video contains alpha information (which is extremely rare). May
+ not be supported on all platforms. If alpha framebuffers are
+ unavailable, it silently falls back on a normal framebuffer. Note
+ that when using FBO indirections (such as with ``opengl-hq``), an FBO
+ format with alpha must be specified with the ``fbo-format`` option.
+ no
+ Ignore alpha component.
``chroma-location=<auto|center|left>``
Set the YUV chroma sample location. auto means use the bitstream