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vo_opengl: change default FBO format

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Reduces (but likely does not remove) the danger of rounding intermediate
values down to 8 bit. This is important for cscale, or any other
processing that might store raw YUV values in framebuffers.

Fixes #1918.
This commit is contained in:
wm4 2015-05-05 14:41:33 +02:00
parent 22455b2961
commit cf210c4ffc
2 changed files with 3 additions and 3 deletions
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4
DOCS/man/vo.rst
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@ -586,7 +586,7 @@ Available video output drivers are:
always used, and typically only when using extended scalers.)
``fmt`` can be one of: rgb, rgba, rgb8, rgb10, rgb10_a2, rgb16, rgb16f,
rgb32f, rgba12, rgba16, rgba16f, rgba32f.
Default: rgba.
Default: rgba16.
``gamma=<0.1..2.0>``
Set a gamma value (default: 1.0). If gamma is adjusted in other ways
@ -747,7 +747,7 @@ Available video output drivers are:
This is equivalent to::
--vo=opengl:scale=spline36:cscale=spline36:dscale=mitchell:dither-depth=auto:fbo-format=rgba16:fancy-downscaling:sigmoid-upscaling
--vo=opengl:scale=spline36:cscale=spline36:dscale=mitchell:dither-depth=auto:fancy-downscaling:sigmoid-upscaling
Note that some cheaper LCDs do dithering that gravely interferes with
``opengl``'s dithering. Disabling dithering with ``dither-depth=no`` helps.

2
video/out/gl_video.c
View File

@ -321,7 +321,7 @@ const struct gl_video_opts gl_video_opts_def = {
.npot = 1,
.dither_depth = -1,
.dither_size = 6,
.fbo_format = GL_RGBA,
.fbo_format = GL_RGBA16,
.sigmoid_center = 0.75,
.sigmoid_slope = 6.5,
.scaler = {