1
0
mirror of https://github.com/mpv-player/mpv synced 2025-01-02 21:12:23 +00:00
Commit Graph

38 Commits

Author SHA1 Message Date
Stefano Pigozzi
c29ab5a46b vo_opengl: add smoothmotion frame blending
SmoothMotion is a way to time and blend frames made popular by MadVR. It's
intended behaviour is to remove stuttering caused by mismatches between the
display refresh rate and the video fps, while preserving the video's original
artistic qualities (no soap opera effect). It's supposed to make 24fps video
playback on 60hz monitors as close as possible to a 24hz monitor.

Instead of drawing a frame once once it's pts has passed the vsync time, we
redraw at the display refresh rate, and if we detect the vsync is between two
frames we interpolated them (depending on their position relative to the vsync).
We actually interpolate as few frames as possible to avoid a blur effect as
much as possible. For example, if we were to play back a 1fps video on a 60hz
monitor, we would blend at most on 1 vsync for each frame (while the other 59
vsyncs would be rendered as is).

Frame interpolation is always done before scaling and in linear light when
possible (an ICC profile is used, or :srgb is used).
2015-01-23 09:14:41 +01:00
wm4
e872852bcb manpage: vo_opengl: describe how to get lanczos2/lanczos3
These aliases were removed in commit 1ec77214. Add a notice to the
manpage how to get these back. Apparently, "lanczos2" and "lanczos3"
were the only interesting aliases possibly used by someone, so the
description is limited to these two.
2015-01-22 20:06:27 +01:00
Niklas Haas
27261bea31
vo_opengl: remove scale-sep and indirect options
These are now auto-detected sanely; and enabled whenever it would be a
performance or quality gain (which is pretty much everything except
bilinear/bilinear scaling).

Perhaps notably, with the absence of scale_sep, there's no more way to
use convolution filters on hardware without FBOs, but I don't think
there's hardware in existence that doesn't have FBOs but is still fast
enough to run the fallback (slow) 2D convolution filters, so I don't
think it's a net loss.
2015-01-22 19:40:06 +01:00
Niklas Haas
8eb9ddd868 vo_opengl: rename all scale options to make more sense
This emphasizes the fact that scale is used for *all* image upscaling,
with cscale only serving a minor role for subsampled material.
2015-01-22 19:40:04 +01:00
Niklas Haas
f24c2e0f56 vo_opengl: always prefer indirect scaling
This is better even for non-separable. The only exception is when using
bilinear for both lscale and cscale. I've fixed the
documentation/comments to make more sense.
2015-01-22 19:40:04 +01:00
Niklas Haas
2d182fdea0
vo_opengl: implement naive anti-ringing
This is not quite the same thing as madVR's antiringing algorithm, but
it essentially does something similar.

Porting madVR's approach to elliptic coordinates will take some amount
of thought.
2015-01-22 19:39:58 +01:00
Niklas Haas
edc100eee0
vo_opengl: make the default radius 3.0 and simplify scaler documentation
This also fixes the maximum range to 16.0, which was previously set to
32.0 and incorrectly documented as 8.0. 16 taps should be more than
anybody will ever need, but it's the highest radius that's supported by
all affected filters.
2015-01-21 23:08:41 +01:00
wm4
e7171892e7 manpage: vo_opengl: change scaler descriptions and recommendations
Based on suggestions by lachs0r.
2015-01-21 22:22:42 +01:00
wm4
724f722d7f vo_opengl_old: remove this VO
At this point, there is probably no hardware left that doesn't do
OpenGL 2.1, and at the same time is fast enough to handle video.
2015-01-20 21:15:04 +01:00
wm4
061d9b1afe README: extend dependecy list, link Windows compilation docs
Also, fix vo.rst, don't want to waste a separate commit on this.
2015-01-20 15:23:21 +01:00
wm4
6f5e5e6a9e vo_opengl: remove cscale-down suboption
For an explanation see the additions to the manpage.
2015-01-20 14:33:53 +01:00
Niklas Haas
61f5a80f10
vo_opengl: get rid of approx-gamma and make it the default as per BT.1886
After finding out more about how video mastering is done in the real
world it dawned upon me why the "hack" we figured out in #534 looks so
much better.

Since mastering studios have historically been using only CRTs, the
practice adopted for backwards compatibility was to simulate CRT
responses even on modern digital monitors, a practice so ubiquitous that
the ITU-R formalized it in R-Rec BT.1886 to be precisely gamma 2.40.

As such, we finally have enough proof to get rid of the option
altogether and just always do that.

The value 1.961 is a rounded version of my experimentally obtained
approximation of the BT.709 curve, which resulted in a value of around
1.9610336. This is the closest average match to the source brightness
while preserving the nonlinear response of the BT.1886 ideal monitor.

For playback in dark environments, it's expected that the gamma shift
should be reproduced by a user controlled setting, up to a maximum of
1.224 (2.4/1.961) for a pitch black environment.

More information:
https://developer.apple.com/library/mac/technotes/tn2257/_index.html
2015-01-16 02:17:19 +01:00
Niklas Haas
26baf5b9da
vo_opengl: add ewa_lanczos upscaler (aka jinc)
This is the polar (elliptic weighted average) version of lanczos.
This introduces a general new form of polar filters.
2015-01-15 21:20:27 +01:00
Niklas Haas
286340d7d0 video: Add sigmoidal upscaling to avoid ringing artifacts
This avoids issues when upscaling directly in linear light, and is the
recommended way to upscale images according to imagemagick.

The default slope of 6.5 offers a reasonable compromise between
ringing artifacts eliminated and ringing artifacts introduced by
sigmoid-upscaling. Same goes for the default center of 0.75.
2015-01-09 03:18:21 +01:00
xylosper
5b4d587ede vo_opengl_cb: introduce frame queue
The previous implementation of opengl-cb kept only latest flipped frame.
This can cause massive frame drops because rendering is done asynchronously
and only the latest frame can be rendered.

This commit introduces frame queue and releated options to opengl-cb.

frame-queue-size: the maximum size of frame queue (1-100, default: 1)
frame-drop-mode: behavior when frame queue is full (pop, clear, default: pop)

The frame queue holds delayed frames and drops frames if the frame queue is
overflowed with next method:

'pop' mode: drops all the oldest frames overflown.
'clear' mode: drops all frames in queue and clear it.

With default options(frame-queue-size=1:frame-drop-mode=pop),
opengl-cb behaves in the same way as previous implementation effectively.

For frame-queue-size > 1, opengl-cb tries to calls update() without waiting
next flip_page() in order to consume queued frames.

Signed-off-by: wm4 <wm4@nowhere>
2015-01-08 18:50:25 +01:00
wm4
df595b06e6 vo_opengl_cb: support changing options at runtime
Like vo_opengl, but way messier, because the already messy config
handling meets threading.
2015-01-05 15:25:58 +01:00
wm4
7873301be8 vo_opengl_old: remove ancient ATI-specific YUV conversions
While there's no actual need to get rid of these, I want to make sure
nobody actually needs this stuff, and removing it is the best way to
get to know this. We still can revert this commit if it turns out there
is a significant need for this stuff.

The final goal is removing vo_opengl_old entirely. Add a warning, which
basically announces this intention.
2015-01-02 00:59:27 +01:00
wm4
4681e7f49f vo_opengl: switch default FBO format to rgba, use GL_RGBA
I'm hoping this is generally more compatible, and it works with GLES.

This probably has not much of an effect on desktop GL. It also switches
only the default format for --vo=opengl, not --vo=opengl-hq.

"-hq" already uses GL_RGBA16, though since it's a sized format, the
story is a bit different, and it won't work on GLES either.
2014-12-17 21:35:05 +01:00
wm4
1c2cbeabc2 vo_opengl: remove quadbuffer/anaglyph stereo 3D rendering
Obscure feature, and I've never heard of anyone using it.

The anaglyph effects can be reproduced with vf_stereo3d. The only thing
that can't be reproduced with it is "quadbuffer", which requires special
and expensive hardware.
2014-12-15 04:40:26 +01:00
wm4
273565c525 vo_opengl_cb: simplify reconfigure, render transparent if unconfigured
I think that's expected; mpv shouldn't draw anything while no video is
active. This doesn't blend transparently, though.

Also document the vo_opengl_cb thing.
2014-12-09 21:55:27 +01:00
wm4
0125fb6714 vo_opengl: make background color configurable
This mainly affects the black bars that are drawn if the window and
video aspect ratios mismatch.
2014-12-09 21:55:27 +01:00
wm4
9e10f8ccbb vo_opengl: enable fancy-downscaling by default for opengl-hq 2014-11-29 00:04:01 +01:00
wm4
4ce7a2ede9 vo_opengl: disable fancy-downscaling for anamorphic video
Includes some arbitrary minor refactoring.
2014-11-29 00:04:00 +01:00
wm4
b8ac594af0 vo_direct3d: fix texture-memory sub-option, extend it
This sub-option was turned into a flag when the sub-option parser was
changed to the generic one (probably accidentally). Turn it into a
proper choice-option.

Also, adjust what the options do. Though none of this probably makes
much sense; the default should work, and if it doesn't, the GPU/driver
is probably beyond help.
2014-11-18 16:30:32 +01:00
wm4
d484cb3f32 vo_opengl: allow setting different filters for downscaling 2014-11-14 15:22:37 +01:00
Stefano Pigozzi
a1d3afb395 vo_corevideo: remove this VO
This was kept in the codebase because it is slightly faster than --vo=opengl
on really old Intel cards (from the GMA era). Time to kill it, and let it rest.

Fixes #1061
2014-09-06 14:10:22 +02:00
Martin Herkt
27a065182c man: fix a whole bunch of typos 2014-09-01 04:27:13 +02:00
Bin Jin
08b5dccd12 vo_opengl: add parameter to gaussian filter
Add a new parameter 'p' to gaussian filter. The new formula used
 a different base taken from fmtconv plugin, so that the
 new parameter is exactly same as the one used in Avisynth and
 Vapoursynth.

 The new default value is 2 / log(2) * 10, with the default value it
 conforms to the original kernel taken from vector-agg.
2014-08-26 22:19:32 +02:00
Bin Jin
b3e788d3f4 vo_opengl: add radius options for filters
Add two new options, make it possible for user to set the radius
for some of the filters with no fixed radius.

Also add three new filters with the new radius parameter supported.
2014-08-26 22:19:30 +02:00
Bin Jin
f14722a40f vo_opengl: add cparam1 and cparam2 options
Although cscale is rarely used, it's possible that params of cscale
are accidentally set to lparam1 and lparam2, which might cause
unexpected results.
2014-08-26 22:19:27 +02:00
wm4
39b8b0a41f manpage: fix opengl-hq defaults
The FBO format was changed some time ago.

CC: @mpv-player/stable
2014-08-18 02:05:06 +02:00
wm4
72ee9bb56c vo_opengl: optional support for using GLX_SGI_video_sync
I'm not sure about the merit, though it does print nice numbers if debug
output is enabled.

Basically, this tries to achieve similar results as the glFinish()
business, but again it entirely depends on the drivers whether this
does anything meaningful, or whether it's actively harmful.
2014-08-15 23:36:13 +02:00
wm4
4a297554bc vo_opengl: if glfinish is used, also call it after swappping
It seems that at least on nvidia systems with composting disabled, we
can get it to block deterministically on the actual vsync event, which
should improve framedropping.
2014-08-15 23:36:02 +02:00
wm4
3c7675ae9a manpage: eliminate the word "movie"
It's evil and sounds outdated. Use the words "media" and "video"
instead.

Closes #935.
2014-07-26 23:19:47 +02:00
Niklas Haas
fbd35caef8 video: Refactor rendering intent for DCP XYZ and :srgb
Notably, we now conform to SMPTE 428-1-2006 when decoding XYZ12 input,
and we can support rendering intents other than colorimetric when
converting between BT.709 and BT.2020, like with :srgb or :icc-profile.
2014-06-22 19:02:06 +02:00
Niklas Haas
70f50ddc5e video: Add support for non-BT.709 primaries
This add support for reading primary information from lavc, categorized
into BT.601-525, BT.601-625, BT.709 and BT.2020; and passes it on to the
vo. In vo_opengl, we always generate the 3dlut against the wider BT.2020
and transform our source into this colorspace in the shader.
2014-06-22 19:00:38 +02:00
Niklas Haas
86d3d11a68 video: Add BT.2020-NCL colorspace and transfer function
Source: http://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.2020-0-201208-I!!PDF-E.pdf
2014-06-22 19:00:38 +02:00
wm4
f5e1756475 DOCS: remove en/ sub-directory
This additional sub-directory doesn't serve any purpose anymore. Get rid
of it.
2014-06-20 23:01:12 +02:00