| Commit message (Collapse) | Author | Age | Files | Lines |
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Although the origins lie somewhere in libaf, which was written by
"anders" and who explicitly disagreed with the LGPL relicensing, we can
change the license of these files, because all code was written by
"alex", who agreed with the relicensing.
The only things that remain from anders' code is the AF_FORMAT_ and af_
prefixes (see e.g. 66f4e563). It was alex who redid this file and added
the format identifiers we have today (507121f7). It's also nice to see
that alex actually claimed copyright on format.c (221a599f). In commit
efb50cab even the bitmask concept (which anders introduced with his
early af_format.c code) was removed, and essentially all lines and
symbols by anders were dropped.
To put it into perspective: the original af_format code was for
converting actual sample data and relied on OSS sample format
identifiers, mpv's format.c/h provides its own sample formats, but
does not do any data conversion.
Remove an now inaccurate comment from format.c (it somehow even survived
the typo that was present in the original commit). Also remove most of
the format.c include statements - most of them are technically anders'
code. We keep limits.h though.
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As usual, the history of these files is a bit murky. It starts with the
initial commit. (At which some development had already been done,
according to the AUTHORS and ChangeLog files at the time, we should be
but covered with relicensing agreements, though.) then it goes on with
complete lack of modularization, which was cleaned up later (cd68e161).
As usual, we don't consider the copyright of the stuff that has been
moved out cleanly.
There were also contributions to generic code by people who could not be
reached or who did not agree to the relicensing, but this was all
removed.
The only patches that we could not relicense and which were still in the
current code in some form are from Dénes Balatoni: 422b0d2a, 32937181.
We could not reach him, so commits f34e1a0d and 18905298 remove his
additions. It still leaves the demux_control() declaration itself, but
we don't consider it copyrightable. It's basically an idiom that existed
in MPlayer before that change, applied to the demuxer struct. (We even
went as far as making sure to remove all DEMUXER_CTRLs the original
author added.)
Commit be54f481 might be a bit of a corner case, but this was rewritten,
and we consider the old copyright removed long ago.
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Similar purpose as f34e1a0deea45e.
Somehow this is much more natural too, and needs less code.
This breaks runtime updates to duration. This could easily be fixed, but
no important demuxer does this anyway. Only demux_raw and demux_disc
might (the latter for BD/DVD). For the latter it might actually have
some importance when changing titles at runtime (I guess?), but guess
what, I don't care.
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While we could easily ifdef-out this file for a LGPL core, it's still
annoying, and also the only GPL file remaining in player/ that is not
based on mplayer.c.
This file originates from subreader.c. It's not clear whether the
original author of it gave us permission to relicense to LGPL (he
probably did, but without further clarification it's sort of ambiguous),
but the subtitle file search code was written by other authors anyway
(see 7eef93819f9d).
One contribution (574eb892ea) is a bit of a corner case, as
test_ext_list() now does a bstrcasecmp(). But I don't think the
copyright remains here. (I asked the author anyway, just in case. But
I didn't wait for the answer.)
In some other cases, contributors who could not be reached added some
subtitle extensions. I don't think those are copyrightable on their own,
but I dropped them anyway just to be sure.
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(Just to make our HAVE_GPL business explicit.)
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This is more uniform, and potentially gets rid of some past copyrights.
It might be that this subtly changes caching behavior (it seems before
this, it synced to the demuxer if the length was unknown, which is not
what we want.)
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All relevant authors have agreed.
There are two exceptions, patches by authors who could not be reached.
This commit tries to remove their copyright.
a0f08fbe: messes with the seeking code corner cases. The EOF flag logic
was changed at some point, and always had a flaky history (see e.g.
347cf972 50274ca3 70411f27 5999efb9 0d5e6084 ff08d0c3 2e2f77e3 de5566f0
9554a844, all which happened after that patch, MPlayer ones without that
patch). I claim that all of the copyright the patch might have added is
gone. Except the message in stream_seek(), which this commit removes.
The other code removed/changed in stream_seek() is probably not from
that patch, but it doesn't hurt to be sure, and also makes it more
readable. (It might change the behavior so that sometimes the eof flag
is set after a seek, but it doesn't matter here.)
2aa6acd9: it looks like the seek_forward() modified by this patch was
later moved to stream.c and renamed to stream_skip_read() in a790f2133.
(Looking closer at it, it was actually modified again a bunch of times,
fixing the logic.) I rewrote it in this commit. The code ended up rather
similar, which probably could lead to doubts whether this was done
properly, but I guess the reader of this will just have to believe me. I
knew what stream_skip_read() was supposed to do (which was reinforced
when I tried to replace it on the caller side), without reading the
pre-existing code in detail. I had to "relearn" the logic how buf_pos
and bug_len work - it was actually easy to see from stream_read_char()
how to skip the data, essentially by generalizing its logic from 1 byte
to N bytes. From the old code I only "used" the fact that it's obviously
a while(len>0) look, that has to call stream_fill_buffer repeatedly to
make progress. At first I actually didn't use stream_fill_buffer_by(),
but the variant without _by, but readded it when I checked why the old
code used it (see cd7ec016e7). This has to be good enough. In the end,
it's hard to argue that this could be implemented in a way not using
such a loop.
Other than this, I could add the usual remarks about how this code was
not modularized in the past, and how stream.c contained DVD code, and
how this was later modularized, moving the copyright to other files, and
so on. Also, if someone wrote a stream module, and was not asked about
LGPL relicensing, we don't consider the entry in stream_list[]
copyrightable.
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cehoyos adds the step_property command in 7a71da01d, and it could be
argued that copyright of this still applies to the later add/cycle
commands (a668ae0ff90c4). While I'm not sure if this is really the case,
stay conservative for now and mark these commands as GPL-only. Mark the
command.c code too, although that is not being relicensed yet.
I'm leaving the MP_CMD_* enum items, as they are obviously different.
In commit 116ca0c7682, "veal" (essentially an anonymous author) adds an
"osd_show_property_text" command (well, the commit message says "based
on" that person's code, so it's not clear how much is from him or from
albeu, who agreed to LGPL). This was later merged again with the
"osd_show_text" command, and then all original code was removed in
commit 58cc0f637f, so I claim that no copyright applies anymore. (Though
technically the input.conf addition still might be copyrighted, so I'm
just dropping it to get rid of the thought.)
"kiriuja" added 2f376d1b39 (sub_load etc.) and be54f4813 (switch_audio).
The latter is gone. I would argue that the former is fully rewritten
with commits b7052b431c9 and 0f155921b0. But like in the step_property
case, I will be overly conservative for now, and mark them as GPL-only,
as this is potentially shaky and should be thought through first. (Not
bothering with the command define/enum in the header, as it will be
unused in LGPL mode anyway.)
keycodes.c/h can be GPL, except for commit 2b1f95dcc2f8, which is a
patch by someone who wasn't asked yet. Before doing something radical, I
will wait for a reply.
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Choosing the seek direction for MPSEEK_FACTOR based on the location of
seek_pts is nonsense, and can cause the seek position to oscillate
between adjacent keyframes, such as when dragging the OSC bar on short
videos.
Fix this by always seeking backward for type MPSEEK_FACTOR, i.e. seek
to the keyframe for the group of pictures (GOP) in which seek_pts is
located.
Fixes #4183.
Signed-off-by: wm4 <wm4@nowhere>
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Moves the DXLockObjectsNV call to after PresentEx. This fixes an issue
where the presented image is a single frame late. This may be due to
DXLockObjectsNV locking the render target before StretchRect is done.
The spec indicates that the lock call should provide synchronization
for the resource, so this may be due to a driver bug.
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The printout of available modes that you can get with --drm-mode=-1
(with -vo drm or --opengl-backend=drm) does not include the refresh
rate in the printout, which is quite useful to know, if one is to
choose for instance 23.98, or 24 Hz for film material.
Signed-off-by: wm4 <wm4@nowhere>
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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 preserves channel balance better and helps reduce discoloration due
to nonlinear tone mapping.
I wasn't sure whether to stuff this inside pass_color_manage or
pass_tone_map but decided for the former because adding the extra
mp_csp_prim would have made the signature of the latter longer than
80col, and also because the `mp_get_cms_matrix` below it basically does
the same thing anyway, so it doesn't look that out of place. Also why is
this justification longer than the actual description of the algorithm
and what it's good for?
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This prevents nasty surprises like the sig-peak still being left at 1.0
when reinterpreting SDR as HDR, or the OOTF for HLG being left as
display-referred.
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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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MaxCLL is the more authoritative source for the metadata we are
interested in. The use of mastering metadata is sort of a hack anyway,
since there's no clearly-defined relationship between the mastering peak
brightness and the actual content. (Unlike MaxCLL, which is an explicit
relationship)
Also move the parameter fixing to `fix_image_params`
I don't know if the avutil check is strictly necessary but I've included
it anyway to be on the safe side.
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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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The problem with fmt-conversion.h is that "lucabe", who disagreed with
LGPL, originally wrote it. But it was actually rewritten by "reimar"
later. The original switch statement was replaced with a lookup table.
No code other than the imgfmt2pixfmt() function signature survives.
Neither the format pairs (PIXFMT<->IMGFMT), nor the concept of mapping
them, can be copyrighted.
So changing the license should be fine, because reimar and all other
authors involved with the new code agreed to LGPL.
We also don't consider format pairs added later as copyrightable.
(The direct-mapping idea mentioned in the "Copyright" file seems
attractive, and I might implement in later anyway.)
Likewise, there might be some format names added to img_format.h, which
are not covered by relicensing agreements. These all affect "later"
additions, and they follow either the FFmpeg PIXFMT naming or some other
pre-existing logic, so this should be fine.
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vo_opengl uses those automatically via pixdesc.
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This file is an leftover from when img_format.h was changed from using
the ancient FourCCs (based on Microsoft multimedia conventions) for
pixel formats to a simple enum. The remaining cases still inherently
used FourCCs for whatever reasons.
Instead of worrying about residual copyrights in this file, just move it
into code we don't want to relicense (the ancient Linux TV code). We
have to fix some other code depending on it. For the most part, we just
replace the MP_FOURCC macro with libavutil's MKTAG (although the macro
definition is exactly the same). In demux_raw, we drop some pre-defined
FourCCs, but it's not like it matters. (Instead of
--demuxer-rawvideo-format use --demuxer-rawvideo-mp-format.)
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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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Not needed anymore.
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All relevant authors have agreed.
Also correct an unrelated entry in the "Copyright" file.
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It seems "lucabe" didn't actually write the current fmt-conversion.c/.h
code. He added the first version of the pixfmt mapping, which was later
changed into a table. So his agreement might not be required for
copyright purposes. Still, all those later additions of pixfmts by
various authors may or may not matter, so the situation is still
complex.
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Quite chaotic history, which code being moved, refactored, duplicated,
unified a bunch of times. But I think everything is covered by LGPL
agreements.
In one case, cehoyos (who didn't agree) applied a patch by someone who
agreed, but didn't change anything (except weirdly adding German
translations). In another case, cehoyos moved code covered by LGPL
agreements (without changing it), which was later used for some other
code. We consider both cases not relevant for copyright.
win_state.c/.h is similar, but pending for reply by the author of
2ab259e68 (I guess).
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This file didn't have a license in the first place. The fact that this
file was supposed to be a template, to be copied and modified by
individual users, might weaken the assumption that it's GPL. (It was
only later that mpv replaced the duplicate code in input.c with
input.conf essentially.)
All involved authors agreed to LGPL. On exception is an anonymous
contribution in commit 116ca0c768219b. This "veal" could not be found.
So the I key is noted as exception. input.conf does not support
conditional guards, so I'm not sure what to do here. Either we could
argue it's a joint work, or the fact that the I key won't work anyway
with a LGPL mpv might count.
etc/builtin.conf and etc/encoding-profiles.conf are mpv original things,
written by developers who agreed to LGPL. So mark them as LGPL too.
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Surprisingly long history, but it's covered by LGPL agreements. One
exception is a7fc969ff62e5ca: someone who hasn't asked changes the
copyright year, but that change was obviously overwritten again later.
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Other files might require action too - just not to get a LGPL core,
which is the priority.
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In GLES 2 mode, we can do dither, but "fruit" dithering is still out of
the question, because it does not support any high depth textures.
(Actually we probably could use an 8 bit texture too for this, at least
with small matrix sizes, but it's still too much of a pain to convert
the data, so why bother.)
This is actually a regression; before this, forcibly enabling dumb mode
due to low GL caps actually happened to avoid this case.
Fixes #4519.
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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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The option->property bridge can't (and shouldn't) preserve option flags.
This is a problem if the flags are actually used by the option
implementation, beyond calling m_config_mark_co_flags().
This was true so far, but b8193e40719 changed this. Now setting the
--profile option (usually from a config file or as recursive profile)
can have side-effects that depend on the flags contents. Solve this by
avoiding going through the "double bridge" altogether.
This fixes a regression if an auto-profile is active, and the user
specifies an option on the command line that is supposed to override an
item in a profile recursively referenced by the auto-profile. The
command line option will not override it, because the auto-profile is
set later, and during application of the auto-profile, the
M_SETOPT_PRESERVE_CMDLINE flag gets lost.
Having to add something to m_property is not nice, and I'll probbaly
regret later. On the other hand, there is a chance that this helps
towards true option/property unification.
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Thus is just a broad guess.
The "Other" section contains things which are not part of the C code,
but which still need to be checked in addition.
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Since michael was somewhat involved in it, wait with the actual license
change until the core is relicensed. Thus mark it as "Almost LGPL.".
The worrisome part about mp_image.c is that it was created by cehoyos
(which disagreed with LGPL) in commit f2dee327b2797. But it turns out it
was a patch by someone else (who agreed with LGPL).
For some reason, the patch was actually slightly modified by cehoyos for
no reason (messed with the include statements), so we mess them back,
just to be sure.
Other than this, there were some commits that added support for new
IMGFMTs over the years. Some of these were by pe |
