| Commit message (Collapse) | Author | Age | Files | Lines |
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Apparently this is virtually identical to Panasonic's V-Log, but using
the constants from S-Log1 and an extra scaling coefficient to make the
S-Log1 curve less limited. Whatever floats their NIH boat, I guess.
Source: https://pro.sony.com/bbsccms/assets/files/micro/dmpc/training/S-Log2_Technical_PaperV1_0.pdf
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Source: https://pro.sony.com/bbsccms/assets/files/mkt/cinema/solutions/slog_manual.pdf
Not 100% confident in the implementation since the values from the spec
seem to be very subtly off (~1%), but it should be close enough for
practical purposes.
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The S-Log "matching" colorspace
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This introduces (yet another..) mp_colorspace members, an enum `light`
(for lack of a better name) which basically tells us whether we're
dealing with scene-referred or display-referred light, but also a bit
more metadata (in which way is the scene-referred light expected to be
mapped to the display?).
The addition of this parameter accomplishes two goals:
1. Allows us to actually support HLG more-or-less correctly[1]
2. Allows people playing back direct “camera” content (e.g. v-log or
s-log2) to treat it as scene-referred instead of display-referred
[1] Even better would be to use the display-referred OOTF instead of the
idealized OOTF, but this would require either native HLG support in
LittleCMS (unlikely) or more communication between lcms.c and
video_shaders.c than I'm remotely comfortable with
That being said, in principle we could switch our usage of the BT.1886
EOTF to the BT.709 OETF instead and treat BT.709 content as being
scene-referred under application of the 709+1886 OOTF; which moves that
particular conversion from the 3dlut to the shader code; but also allows
a) users like UliZappe to turn it off and b) supporting the full HLG
OOTF in the same framework. But I think I prefer things as they are
right now.
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st2084 and std-b67 are really weird names for PQ and HLG, which is what
everybody else (including e.g. the ITU-R) calls them. Follow their
example.
I decided against naming them bt2020-pq and bt2020-hlg because it's not
necessary in this case. The standard name is only used for the other
colorspaces etc. because those literally have no other names.
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List of changes:
1. Kill nom_peak, since it's a pointless non-field that stores nothing
of value and is _always_ derived from ref_white anyway.
2. Kill ref_white/--target-brightness, because the only case it really
existed for (PQ) actually doesn't need to be this general: According
to ITU-R BT.2100, PQ *always* assumes a reference monitor with a
white point of 100 cd/m².
3. Improve documentation and comments surrounding this stuff.
4. Clean up some of the code in general. Move stuff where it belongs.
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"Almost" because this might contain copyright by michael, who agreed
with LGPL, but only once the core is LGPL. This is preparation for that
to happen.
Apart from that, the usual remarks apply. In particular, dec_video.c
started out quite chaotic with no modularization, but was later
basically gutted, and in general rewritten a bunch of times. Not going
to give a history lesson.
Special attention needs to be given to 3 patches by cehosos, who did not
agree to the relicensing:
240b743ebdf: --field-dominance
e32cbbf7dc3: reinit VO if aspect ratio changes
306f6243fdf: use container aspect if codec aspect unset (?)
The first patch is pretty clearly still in the current code, and needs
to be disabled for LGPL.
The functionality of the second patch is still active, but implemented
completely different, and as part of general frame parameter changes (at
the time of the patch, MPlayer already reinitialized the VO on frame
size and pixel format changes - all this was merged into a single check
for changing image parameters).
The third patch makes me a bit more uncomfortable. It appears the code
was moved to dec_video.c in de68b8f23c8c, and further changed in
82f0d373, 0a0bb905, and bf13bd0d. You could claim that cehoyos'
copyright still sticks. Fortunately, we implement alternative aspect
detection, which is simpler and probably preferable, and which arguably
contains none of the original code and logic, and thus should be fully
safe.
While I don't know if cehoyos' copyright actually still applies, I'm
more comfortable with making the code GPL-only for now. Also change the
default to use the (in future) plain LGPL code, and deprecate the one
associated with the GPL code, so we can eventually remove the GPL code.
But it's also possible we decide that the copyright doesn't apply, and
undo the deprecation and GPL guards.
I expect that users won't notice anything. If you ask me, the old aspect
method was probably an accidental bug instead of intentional behavior.
Although, the new aspect method was broken too, so I had to fix it.
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image_writer.c has code originating from vf_screenshot.c, vo_jpeg.c, and
potentially others. vo_image.c is based on a bunch of those VOs as well,
and the intention was to replace them with a single codebase.
vo_tga.c was written by someone who was not or not could be contacted,
but it doesn't matter anyway, as no code from that initial patch was
used.
One rather old patch (57f77bb41a9) reordered by libjpeg patch API calls,
and the author of the patch was not contacted. But at least with the
smoothing_factor override removed, this pretty much exactly corresponds
to the official libjpeg API example (and might even reflect a change to
those - didn't dig deeper). This removes the -jpeg-smooth option. While
we're at it, remove all the other dropped jpeg options from the manpage
(which was forgotten in past changes).
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It was an attempt to move some MPlayer filters (which were removed from
mpv) to external, loadable filters. That worked well, but then the
MPlayer filters were ported to libavfilter (independently), so they're
available again. Also there is a more widely supported and more advanced
loadable filter system supported by mpv: vapoursynth.
In conclusion, vf_dlopen is not useful anymore, confusing, and requires
quite a bit of code (and probably wouldn't survive the rewrite of the
mpv video filter chain, which has to come at some point). It has some
implicit dependencies on internal conventions, like possibly the format
names dropped in the previous commit.
We also deprecated it last release. Drop it.
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fdclose://123 will instruct mpv to close the file descriptor
when it is no longer needed (usually when playing finishes).
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Before this, options with co->data==NULL (i.e. no storage) were not
added to the bridge (except alias options). There are a few options
which might make sense to allow via the bridge ("profile" and
"include"). So allow them.
In command_init(), we merely remove the co->data check, the rest of the
diff is due to switching the if/else branches for convenience.
We also must explicitly error on M_PROPERTY_GET if co->data==NULL. All
other cases check it in some way.
Explicitly exclude options from the property bridge, which would be
added due this, and the result would be pointless.
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Implements JS with almost identical API to the Lua support.
Key differences from Lua:
- The global mp, mp.msg and mp.utils are always available.
- Instead of returning x, error, return x and expose mp.last_error().
- Timers are JS standard set/clear Timeout/Interval.
- Supports CommonJS modules/require.
- Added at mp.utils: getenv, read_file, write_file and few more.
- Global print and dump (expand objects) functions.
- mp.options currently not supported.
See DOCS/man/javascript.rst for more details.
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Not all tools apply line breaking. Which is probably good, because you
wouldn't be able to put lines in there which should _not_ be broken.
Don't ask me whether there is an "official" git convention for this.
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Sometime earlier, "sub-ass-style-override" was renamed to
"sub-ass-override". The option's documentation was updated to support
this, but not the documentation for the hotkey that toggles this option.
This commit updates the keyboard shortcut documentation to fix that.
Signed-off-by: wm4 <wm4@nowhere>
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I call it `mobius` because apparently the form f(x) = (cx+a)/(dx+b) is
called a Möbius transform, which is the algorithm this is based on. In
the extremes it becomes `reinhard` (param=0.0 and `clip` (param=1.0),
smoothly transitioning between the two depending on the parameter.
This is a useful tone mapping algorithm since the tunable mobius
transform allows the user to decide the trade-off between color accuracy
and detail preservation on a continuous scale. The default of 0.3 is
already far more accurate than `reinhard` while also being reasonably
good at preserving highlights, without suffering from the overall
brightness drop and color distortion of `hable`.
For these reasons, make this the new default. Also expand and improve
the documentation for these tone mapping functions.
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List of changes:
1. Rename `signfs` to `scale`, to better match what it actually does
(force --sub-scale to apply to ASS subtitles), and fix the blatantly
wrong documentation (it actually specifically does *not* apply to
signs)
2. Rename `--sub-ass-style-override` to `--sub-ass-override` to help
reduce confusion between it and `--sub-ass-force-style`, as well as
pointing out that it doesn't necessarily actually override styles.
(The new `scale` option, for example, only sets
ASS_OVERRIDE_BIT_FONT_SIZE, but not ASS_OVERRIDE_BIT_STYLE)
3. Mention that `--sub-ass-override` is generally sort of smart about
only overriding dialog, not signs.
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Why? Better than wasting time by arguing with idiots.
Fixes #4484.
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In a multi GPU scenario, it may be desirable to use different GPUs
for decode and display responsibilities. For example, if a secondary
GPU has better video decoding capabilities.
In such a scenario, we need to initialise a separate context for each
GPU, and use the display context in hwdec_cuda, while passing the
decode context to avcodec.
Once that's done, the actually hand-off between the two GPUs is
transparent to us (It happens during the cuMemcpy2D operation which
copies the decoded frame from a cuda buffer to the OpenGL texture).
In the end, the bulk of the work is around introducing a new
configuration option to specify the decode device.
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Add the "lavfi-" prefix (details see manpage additons).
Tag the filter name as "(lavfi)" in the verbose filter list output.
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This is an old pseudo codec to pass through the pixel format. Setup a
suitable AVCodecParameter directly instead, so the "rawvideo" codec can
be used.
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Seems like people get confused by this.
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Update man page for fonts.conf and subfont.ttf. These are two
undocumented features in mpv. They were only hardcoded into sub/ass_mp.c
and could not be found anywhere else in the entire codebase. Git log
reveals that fonts.conf was added in 2013 while subfont.ttf was brought
in by a ancient patch of mplayer in 2002...
These are two quite useful undocumented features when you do not want to
mess up with global fonts.conf to include more fonts.
Also document ~/.config/mpv/fonts/ directory and suggest using fonts.conf
to include additional fonts.
mpv reads all files in ~/.config/mpv/fonts/ directory into memory. If
there are a lot of fonts in that directory, mpv would use a lot of
memory. Using ~/.config/mpv/fonts.conf to include additional fonts is
more memory-efficent.
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This is probably better than separate options. For example, the user
does not have to guess which one is applied if both options are enabled.
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af_volume is deprecated, and so are its replaygain sub-options. To make
it possible to use replaygain without deprecated options (and of course
to make it available at all after af_volume is dropped), reintroduce
them as top-level options.
This also means that they are easily changeable at runtime by using them
as properties. Change the "volume" property to use the new update
mechanism as well.
We don't actually bother sharing the implementation between new and
deprecated mechanisms, as the deprecated one will simply be deleted.
For the from_dB() functions, we mention anders' copyright, although I'm
not sure if a mere formula is copyrightable. This will have to be
determined later.
This whole change is mostly untested. Our distributed human CI will take
care of it.
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Pointed out by someone.
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Also update release policy documentation and version extraction.
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(Of course this is on by default, because otherwise we'd randomly break
downstream applications.)
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There have been user complaints, and I'm annoyed by this behavior
myself.
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The default of 80 is conservative to allow relatively wide fonts, but
with many common fonts a bigger number can be used without overflow.
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It's all explained in the DOCS changes. Although this option was always
kind of obscure and pointless. Until it is removed, the only reason for
setting it would be to raise the static default limit, so change its
default to INT_MAX so that it does nothing by default.
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Instead of pausing if --keep-open is active, stop
at end but continue playing if seeking backwards.
And then stop again when end is reached.
Signed-off-by: wm4 <wm4@nowhere>
Over the PR, the option was renamed, and the manpage additions were
slightly changed/enhanced.
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Also "announce" the plans to undeprecate it with changed semantics
later. The deprecation period is needed to warn script authors and
client API users (etc.) of the change.
This is done because everyone seems to expect --loop to loop the current
file, not the playlist. Even in cases when only 1 file is on the
playlist, the --loop-file semantics seem to be preferred.
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Mostly because of ANGLE (sadly).
The implementation became unpleasantly big, but at least it's relatively
self-contained.
I'm not sure to what degree shaders from different drivers are
compatible as in whether a driver would randomly misbehave if it's fed
a binary created by another driver. The useless binayFormat parameter
won't help it, as they can probably easily clash. As usual, OpenGL is
pretty shit here.
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And also future directions. Basically, it tells the user that he
can't hope for perfect forward-compatibility.
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Now e.g. --vf=pad=1000:1000 works.
All in all pretty ugly and hacky. Just look away.
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Now you can for example do "--vf=hue=h=60" - there is no "hue" filter in
mpv, so libavfilter's will be used.
This has certain caveats (see manpage).
The point of this is providing a relatively smooth transition path to
removing our own filter stuff.
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The plan is to nuke the custom filter chain completely. It's not clear
what will happen to the still needed builtin filters (mostly hardware
deinterlacing and vf_vapoursynth). Most likely we'll replace them with
different filter chain concept (whose main purpose will be providing
builtin things and bridging to libavfilter).
The undocumented "warn" options are there to disable deprecation
warnings when the player inserts filter automatically.
The same will be done to audio filters, at a later point.
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The APIs that run commands in a more API-like manner disable OSD and
string expansion by default.
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And also change input.conf to make all screenshots async. (Except the
every-frame mode, which always uses synchronous mode and ignores the
flag.) By default, the "screenshot" command is still asynchronous,
because scripts etc. might depend on this behavior.
This is only partially async. The code for determining the filename is
still always run synchronously. Only encoding the screenshot and writing
it to disk is asynchronous. We explicitly document the exact behavior as
undefined, so it can be changed any time.
Some of this is a bit messy, because I wanted to avoid duplicating the
message display code between sync and async mode. In async mode, this is
called from a worker thread, which is not safe because showing a message
accesses the thread-unsafe OSD code. So the core has to be locked during
this, which implies accessing the core and all that. So the code has
weird locking calls, and we need to do core destruction in a more
"controlled" manner (thus the outstanding_async field).
(What I'd really want would be the OSD simply showing log messages
instead.)
This is pretty untested, so expect bugs.
Fixes #4250.
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Obviously, this has no effect on commands which do not support this
explicitly. A later commit will enable this for screenshots.
Also add some wording on mpv_command_async(), which has nothing to do
with this. Having a more elegant, unified behavior would be nice. But
the API function was not created for this - it's merely for running
commands _synchronously_ on the core, but without blocking the client
API caller (if the API user consistently uses only async functions).
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Closes #3264
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This reverts commit 6573b73462e336da0daca845ba4df02782afc2b6.
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for a reason i can just assume some key events can vanish from the
event chain and mpv seems unresponsive.
after quite some testing i could confirm that the events are present at
the first entry point of the event chain, the sendEvent method of the
Application, and that they vanish at a point afterwards. now we use
that entry point to grab keyDown and keyUp events. we also stop
propagating those key events to prevent the no key input' error sound.
if we ever need the key events somewhere down the event chain we need
to start propagating them again. though this is not necessary currently.
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