The BD-J VM progresses only on reads. With playback at EOF or on a
held still nothing reads anymore, applet playlist switches never
surface and menus freeze, libbluray documents this polling requirement
for idle states. Drive one nav read per tick and keep the core awake.
The slave demuxer latches its EOF and stops touching the stream, so
the read path peeks the stream itself to run its event loop. Poll the
same way while paused in a menu, highlight redraws would otherwise
wait for the next core wakeup. dvdnav stills release on user input,
not reads, and the pump bypasses the cache limits, so no pumping
outside these states.
The resync seek that follows a disc-initiated jump must not reposition
the VM. On BD the jump is handled out-of-band by reopening the slave
demuxer on the packet-read path, and the VM already sits at the jump
destination. Repositioning it with the (stale) seek target time would
hop to the wrong place. Adopting the discontinuity counter here would
leave the old slave demuxer parsing the new playlist's data with the
wrong codec context. Flush our side only, and keep the counter stale so
the read path still performs the reopen.
The player's default track selection picks the first probed audio
track, but the substream the disc's current PGC actually plays is
decided by the DVD VM and may be a different one. On discs whose menu
domain plays LPCM while the mux also carries an (unreferenced) AC3
substream, mpv selected the AC3 track, which has no data. We have to
keep track of what VM wants to output and what LAVF expects.
When the disc VM jumps (menu activation, end of title), the demuxer
and player have to flush and reinitialize exactly at the boundary.
Hold an EOF at the boundary until the demuxer acks it, and resync
the player with a regular seek, which already orders flush, decoder
reset and restart. d_seek recognizes the held boundary and releases
it instead of repositioning the VM.
Also log the VM domain in nav event messages.
A sparse video stream can report a transient EOF during a restart. The
DVD-Audio still track is read lazily and its first frame may arrive a
moment after the video chain already drained. Treat a frame arriving
while the restart is in progress as the restart's first frame.
Sparse video with continuous audio broke playback timing in several
ways:
- The first frame after a seek/restart was always shown immediately.
With sparse video the frame at the seek target may not exist, and the
next still can lie minutes ahead. Showing it early displays the wrong
image.
- hr-seeks dropped frames with PTS below the target. For sparse video
the nearest preceding still is the correct frame to show.
- Frame scheduling used the incremental A/V delay accounting, which is
unusable across the video-EOF gaps between stills. Schedule sparse
frames directly against the audio clock instead.
DVD-Audio discs carry an Audio Still Video Set (ASVS). An MPEG-2 still
images (cover art, booklet/lyric pages) that the disc associates with
tracks.
A new STREAM_CTRL_GET_STILL returns the still for a given playback time.
demux_disc exposes it as a selectable mpeg2video track and injects the
still as a keyframe at the track's playback time. It changes as playback
crosses track boundaries (and follows onset times when a disc encodes
them).
--dvda-page (with the new STREAM_CTRL_SET_STILL_PAGE) forces a specific
still page instead of the scheduled one. The still state is guarded by
a mutex, runtime page changes arrive from the player thread while the
demuxer thread extracts stills.
The highlight rectangle and palette were passed around as loose fields
in three places. Bundle them into a struct, pass the whole nav state to
the sd_lavc control.
Keep DVD SPU streams always enabled at the slave level and retain the
last subpicture per substream. Re-deliver the retained copy when a sub
track is (re)selected and when the player resets playback state.
DVDNAV_STILL_FRAME means the VM is holding a frame indefinitely (menu
pages, some logos) or for a timed duration. Report the indefinite case
via nav state so the player holds playback at EOF instead of ending
the file, and skip timed stills, which would otherwise stall playback.
Internally the angle stays 0-based (matching the libbluray API), only
the user-visible option/property values are 1-based. BD_EVENT_ANGLE
delivers a 1-based value and is converted on arrival.
The disc VM advances when the stream is read, so in nav mode the cache
must not run ahead of what the user is seeing. Never read ahead (a
looping menu is endless). Never satisfy seeks from the cache either.
This applies to the whole disc session, not only while a menu is on
screen. The VM can jump at any time (BD-J timers, end of title), so
the cache must never run ahead of playback.
Activations still must be able to drive the VM while nothing is
consumed. demux_drive_nav() forces a single read for them.
The disc VM selects audio and subpicture streams itself (menu SPU
highlights, title-authored stream changes on jumps). Follow the VM's
selection on every hop, and turn subtitles on/off with the disc's
sub_visible flag.
The sync only applies while the corresponding track selection is on
auto. An explicitly chosen track (--aid/--sid or runtime cycling) is
never overridden.
User-facing entry point for in-disc menu navigation. The command
forwards an action (up/down/left/right/select/menu/title-menu/popup/
prev/mouse-move/mouse-click) to the current disc stream handler.
The new discnav input section allows binding controls that are only
active while a disc menu is on screen.
Setting the edition property on a disc jumps to the title through the
stream directly, so selecting the currently-playing edition can still
return to it from a menu.
On DEMUX_EVENT_LISTS, re-copy the chapter list and notify the
chapter/edition properties, so a disc title change is reflected in
observed properties and the OSC.
play_current_file picks default tracks once, then leaves them alone.
That leaves later-surfacing streams without a default selection. This
applies to all demuxers with late-added streams, not only discs.
The new player/discnav.c owns the player-side state for the in-disc
menu UI, shared between stream_bluray and stream_dvdnav. Once per
playloop iteration it pulls the stream's nav state and
- pushes the BD menu plane to the OSD (OSDTYPE_DISC_MENU) and the DVD
highlight state to the dvd_subtitle decoders,
- resyncs playback when the disc VM jumped on its own, detected
through the stream's discontinuity counter,
- mirrors the disc's current title into demuxer->edition,
- force-selects a dvd_subtitle track while a DVD menu is up, so the
menu graphics decoded by sd_lavc reach the OSD, and
- enables the {discnav} input section while a menu is interactive.
The per-file state is reset on every new playlist entry.
Let the caller pick the OSD object instead of hardcoding EXTERNAL2, so
other bitmap overlay sources can reuse the same path. No functional
change, EXTERNAL2 is still the only user.
Add primaries, transfer, max_luma and video_colorspace arguments.
Allows tagging the colorspace of the overlay bitmap instead of assuming
sRGB. video_colorspace interprets the bitmap in the video's colorspace,
so it is tone mapped exactly like the video. max_luma overrides the
luminance peak of the bitmap. Currently only vo_gpu_next honors these
parameters. vo_gpu keeps its sRGB assumption regardless of the tag.
Fixes#10678
`false` value in the `value or mp.get_property_native(property)`
expression will trigger `mp.get_property_native`, but some
sub-properties cannot be accessed directly, the obtained value is nil.
seekRangesF() accepts a zero duration and produces NaN/Inf coordinates,
which assdraw cannot format. Ignore seek-range metadata when the native
duration property is unavailable or zero.
Fixes#18344
This allows controlling whether the files in a playlist inherit the
per-file options of the playlist file itself. For playlists created
by --autocreate-playlist, --playlist-inherit-options=current allows
inheriting only for the item the playlist is created from.
Currently, if a playlist file is played and replaced by its contents,
the per-file options of the playlist file are ignored.
This commit makes these options inherited for its contents so they work
as expected.
Make the filtering and user input render asynchronously, such that there
is no latency penalty for user typing.
A single keystroke with hundreds of thousands of selectable items blocks
the script for significant time. Especially filtering by single letter
which would produce a lot of matches. This could be fixed by delaying
filtering by the time user "stops" typing, but this adds artificial
delay on top of the filtering delay itself. Instead we start the
filtering always, but have a deadline of 5 ms, at which point the
coroutine is paused and script is allowed to process user events again.
If user typed or closed the dialog, we simply abort the filtering and
start new one. Instead of waiting for full filtering to finish when the
result is already stale.
The first slice runs synchronously, so anything but huge item lists is
still filtered within the keypress handler exactly as before.
Fixes: #18268
Store just the indices of the matching items in matches. The text is
looked up in selectable_items, and the positions to highlight are
computed in get_matches_to_print() only for the rendered matches, using
the query that produced the current matches. This reduces useless work
of computing highlight positions when only handful of items can be
displayed at the time on screen in practice.
Sort matches without lua comparator, this significantly speeds up
sorting of big lists, where C->Lua round-trip was problematic.
Overall it's 10x-20x times faster in my testcase.
Replace those conditions with precomputed lookup. It's not huge win, but
it's free, so we can do it.
JIT:
* score() x 44875 matches: 35 -> 25 ms
* filter_range 'p': 50 -> 25 ms
* filter_range 'pf': 61 -> 37 ms
interpreter:
* score() x 44875 matches: 295 -> 254 ms
* filter_range 'p': 412 -> 284 ms
* filter_range 'pf': 531 -> 388 ms
The lookup is dense, to avoid hash tables, which makes things slower,
but in fact the tables are reused, so it's low on memory.
Add fzy.filter_range() which computes only scores, appends to
caller-provided arrays instead of allocating tables per match, takes
an inclusive range so callers can process a large list in slices while
handling pending input in between, and accepts optional pre-lowercased
haystacks so repeated calls don't allocate a lowercase copy of the whole
list each time.
There could be a lot more done if we target luajit only. Or if we port
this to C. But for now let's keep it this way. It's 2-3x faster than
before, and the issue is mostly only on very big inputs, which are not
that common in practice.
Previously computing scores allocated two matrices of lua tables per
call. With hundreds of thousands of items this made fuzzy matching in
console.lua GC-bound.
When only the score is needed, keep two reused rolling matrix rows,
making repeated scoring allocation-free. positions() still keeps all
rows since tracing back the matched positions requires them.
fzy.filter() of 300000 items drops from 1013 ms to 356 ms (on my setup)
for a worst-case single-character needle, and a standalone score() call
no longer allocates at all.
This are char comparisions, but in lua they are expressed as full string
compare. Compare as bytes instead, this is significantly faster,
especially with luajit compiled code.
This allows scaling secondary subtitles independently from primary subtitles. The option defaults to 1 like --sub-scale and follows the other secondary-sub-* options by not inheriting from the primary subtitle setting.
Fixes#14989.
Back when reselect_demux_stream call was added in this path in 700f72f,
sub_redecode_cached_packets only retained the last two packets. The
subtitle decoder cache was changed in 0a4b098 to retain the whole packet
sequence. Therefore sub_redecode_cached_packets by itself can rebuild
the new decoder state entirely from packets held in memory, and we no
longer need the demuxer to refresh the track.
This fixes expensive track refresh for network streams, where changing
some sub-* options during runtime of network streams would cause the
cache to be dropped
The `ff-index` is just a index of in the track order, it doesn't carry
much meaning and may be wrong or unavailable when other than lavf
demuxer is used. Additionally some tracks may be virtual like DOVI EL
track or merged image tile grid. In which case those track are not
related to lavf at all.
No deprecation period. It was never guaranteed to match FFmpeg anyway,
so anyone who has a hard dependency on this property should reconsider.
It's not really possible to provide backward compatibility given the
ambiguity of this index. It's better to make it unavailable than making
mismatch. For user it's clear when it's not available, but not possible
to know when it's wrong.
When changing MPEG-TS program (edition) it may have completelly
different time base and duration, on live, non-seekable streams we would
just hang trying to resync to revious PTS, which is not valid. Reset the
state on edition change.
In the 2020s, now known as "the twilight years of modern
civilization", Silicon Valley's two most morbidly obese failsons
finally found their niche: a product that lets complete imbeciles
pretend to be software developers. This was, at least for a
while, a smash hit. Hordes of claudecucked vibechuds began
spamming free software projects with bogus "security bugs" and
associated even worse fixes, both of which they did not know how
to reason about, and definitely did not care to learn how to
reason about. The entire exercise, after all, was to get one's
name into the list of contributors, to get ahead in a highly
competitive job market of economies with equally torturous
education systems.
To the disturbingly moist-looking tech oligarchs recording
Goldman Sachs jerk-off instructons on their podcasts, this was a
profound shift in software development. Now, they no longer had
to pay 6 figures to some idiot who doesn't know how to program so
chooses React, and instead they can pay 6 figures to some
application that doesn't know how to program so chooses React.
For everyone else, it just added to the torment that is life in a
modern globalised service economy, where the fruits of their
labour are siphoned off and directed towards building ever
grander and more opulent paedophile island resorts.
But back to the code. Someone submitted a slop issue about how
there's UB if you run an input command with bogus parameters.
This is hardly a bug, since the commands are trusted, so the fix
is "don't do dumb shit". However, contextless vibechuddies saw
this as an opportunity to fire up their deeply subsidized
planet-burners and shit out some code they had no idea about what
it did.
LLMs, failing to have any real reasoning, tried twice, and failed
twice, to find the real """fix""" here. #18144 decided that
another condition needed to be added to the logical OR, whereas
the subsequent #18211 instead wanted to do an explicit cast to
size_t for no fucking reason. Funnily enough, the unsignedness of
size_t doesn't cause any problems here, because of the earlier
check to make sure `w` is positive.
Both of them missed that if `foo < bar * 4` overflows `bar`, you
can just check for `foo / 4 < bar`, which is an efficient
division as 4 is a power of 2, and the integer division here does
not lead to any problems because the check is a range check.
Do that, just to stop these stupid fucking PRs from popping up,
and deny these dumb shitheads the satisfaction of getting their
name into the contributor stats.
Closes#18128.
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