There's some geometry-related things that mpv has to calculate before
the window is actually mapped onto the screen in wayland. But there's no
way to know which output the window will end up on before it happens, so
it's possible to calculate it using the wrong values. mpv corrects
itself later when the surface event happens, but making the initial
guess work better can help in certain cases.
find_output is the only thing that needs to be changed here. Its main
purpose is to grab the right output based on user settings when we're
trying to full screen and giving a fallback in case we don't have
wl->current_output yet. The x11 code already does something similar, so
we're basically just copying it. Allow user settings like --screen and
--screen-name to influence the initial wl_output guess. Those options
won't actually place the window on that specific screen since we can't
do that in wayland, but if the user knows where the window will end up
beforehand it makes sense to listen to the arguments they pass. If
something goes wrong, then we just fallback to 0 like before.
In the sub seek code path, there was an arbitrary small offset added to
the pts before the seek. However when seeking backwards, the offset was
an additional subtraction. de6eace6e9
added this logic 10 years ago and perhaps it made sense then, but the
additional subtraction when seeking backwards causes the subtitle seek
to go too far to the previous subtitle if the durations overlap. This
should always be an addition to work correctly. Additionally, the sub
stepping code path also could use this offset for the same reason
(duration overlaps). However, it is only applicable to sd_ass not
sd_lavc. sd_lavc has step_sub support but on a sample it didn't even
work anyway. Perhaps it only works for certain kinds of subtitles
(patches welcome).
Anyways instead of keeping this offset as a magic number, we can define
it in sd.h which is handy for this. For sd_ass, we add the offset when
sub stepping, and the offset is always added for sub seeking like it was
before. Update the comment to be a little more relevant to what actually
happens today. Fixes#11445.
Since 062104d16e, we started saving cached
packets for subtitles. However, these can point to the same address as
what is stored in sub->new_segment. When a segment is updated, the
packet is potentially freed. Later during decoding, this can lead to a
double free since the cached packets will naturally try to free itself
and update. Fix this by simply always making sub->new_segment a full
copy of the packet so its lifetime doesn't have to be tied to the cached
packet stuff.
A ton of code and drm-specific abstractions can be dropped with this.
One important thing to note is that the usage of sbc is completely
dropped here. The utility of that is not particularly clear since the
sbc value was manually incremented before the flip and it's not as if
the drm page flip event gives it to us like it does with the msec and
ust. It can be reintroduced later if there is a need. For drm, we also
add a present_sync_clear_values helper since all presentation feedback
needs to be cleared on pause/resume for it.
When this was originally written, the queuing/list approach was
deliberately removed since it adds more complication and xorg/wayland
don't really use it anyway. In practice, you only really have one frame
in flight with presentation timestamps. However, one slight annoyance is
that the drm code has its own thing which is almost exactly the same and
does its own calculations. Ideally, we'd port drm to this instead, but
the implementation there takes into account N-frames in flight which
probably does actually work. So we need to make present_sync smarter and
be able to handle this.
mpv does actually have its own linked list implementation already which
is a good fit for this. mp_present becomes the list and each
mp_present_entry has its own set of timestamps. During initialization,
we create all the entries we need and then simply treat it like a queue
during the lifecycle of the VO. When an entry is fully used
(present_sync_get_info), then we remove it from the list, zero it out,
and append it to the end for future use. This avoids needing to allocate
memory on every frame (which is what drm currently does) and allows for
a reasonable number of in flight frames at the same time as this should
never grow to some obscene number. The nice thing is that current users
of present_sync don't need to change anything besides the initialization
step.
This would cause mpv to, in some very specific scenarios, have a
negative vsync_offset after seeking which would result in mpv requesting
a pts before the first frame to libplacebo.
Fix it by setting it to 0 when we reset state, such as after seeking.
Fixes: https://github.com/mpv-player/mpv/issues/12813
This commit replaces all uses of sig_peak and maps all HDR metadata.
Form notable changes mixed usage of maxCLL and max_luma is resolved and
not always max_luma is used which makes vo_gpu and vo_gpu_next behave
the same way.
This change essentially removes mp_thread_self() and instead add
mp_thread_id to track threads and have ability to query current thread
id during runtime.
This will be useful for upcoming win32 implementation, where accessing
thread handle is different than on pthreads. Greatly reduces complexity.
Otherweis locked map of tid <-> handle is required which is completely
unnecessary for all mpv use-cases.
Note that this is the mp_thread_id, not to confuse with system tid. For
example on threads-posix implementation it is simply pthread_t.
UPDATE_SUB_HARD causes all of the ass objects to reset in order to apply
the new style. UPDATE_SUB_FILT doesn't actually reset the sd, but it
should in order to update the actual filters so that was added here.
Doing this causes the current subtitle to be dropped. In the paused
cause, this concidentally works because command.c forces a video refresh
which then reloads the subtitle essentially. But while playing, the
subtitle will be dropped and you won't get anything until the next one
appears.
Instead of using video refreshes, what we can do is just always save the
last two subtitle packets in a cache and redecode them if needed. This
is much easier and also allows us to get rid of all the video refresh
logic in command.c. Fixes#12386.
The other options that have to do with ass styles also uses this flag.
It's needed since we have to destroy the ass objects and reinit them.
It's a bit incomplete since it will technically only properly work when
paused (while playing, the current subtitle gets discarded). That fix is
in the next commit.
The old one would actually crash if the libplacebo.cache file was
invalid. Additionally, set a max size of 1 GiB for icc cache and 50 MiB
for gpu shader cache. The per object size limit is removed which puts
mpv in line with plplay. Finally, a few memory leaks are also fixed
since several objects previously were not freed on uninit.
For whatever reason, some of the lua code (particularly the osc and
ytdl_hook) is full of a bunch of stuff like if (foo), if not (foo ==
nil), etc. The parenthesis aren't needed in lua and actually just look
weird since nobody actually writes lua like this. You can see most of
the other conditionals are written normally. So cleanup the style to
match when the parenthesis clearly aren't doing anything. Not directly
related, but also add some spaces on a few math operations while we're
at it.
This avoids a "Redefined local `options`" LSP warning in
list_option_list() after the previous commit. It still works, but
reusing names for local variables is error-prone.
Probably should have actually tested the filter changes but I didn't.
This was the wrong spot anyway since labels are unique. Something like
this should have been done further down when finding it by content. On
second thought, having multiple filters with the same content does have
a usecase (e.g. stacking multiple rotations) so removing all of them at
once probably isn't great. There's no practical usecase for having
duplicates in a string list, so we'll leave that change alone.
Fixes#12791.
Vapoursynth does not provide crop metadata and input one is likely to be
invalidated during filtering. Set crop to full frame if image dimensions
were changed during filtering.
Fixes: #12780
Previously, the av sync change calculation was only done if the
audio_status was STATUS_PLAYING, but there is at least one or two more
states where this should be done. player/audio is capable of adding
delay if the state is anything besides STATUS_EOF. This means that while
calling adjust_sync, the delay value could have changed from the audio
side of the equation from the previous playloop, and it doesn't
necessarily mean that the current audio_status is STATUS_PLAYING either.
So the old code would technically skip this case. In practice, this is
just one frame so it hardly matters, but it should be taken into
account. For example, STATUS_READY is definitely possible here in
adjust_sync. I'm not sure if it's actually possible for STATUS_SYNCING
to happen but the audio code can change add delay with that status, so
it doesn't hurt. STATUS_DRAINING is probably not relevant, but again
include it to mirror the audio code logic. Of course, STATUS_EOF is
obviously a no-no since that means no audio at all, so we return from
there. I didn't take hard measurements or anything, but this does seem
to result in slightly smaller av sync fluctuations on discontinuities
(like seeking) which makes sense because we're now making an additional
correction that wasn't previously done.
Another change is to always try adjust_sync as long as the frame_time is
nonzero. The old logic only did this if the video_status was playing or
greater, but it is possible to get new frames with a different PTS that
do not have that status. The audio is still playing so logically it
should be adjusted as well. Again, this happens for just one frame, so
it doesn't really matter in practice but it should make more sense. A
zero frame_time is skipped since that would mean the pts did not advance
and the previous playloop should have done the adjustment for that time
already.
Christoph Heinrich