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.
Use floor(pts * 1000 + 1e-6) instead of llrint() for all timestamp
conversions to avoid floating-point precision errors causing early
subtitle presentation on boundry frames.
Fixes: #17453
Signed-off-by: Ricardo Fonseca <[email protected]>
Return all subtitle lines in memory with text, start and end.
I did not name this sub-all so it cannot be misinterpreted as referring
to all subtitle tracks.
Closes#12810.
It's a pretty niche case, but if you start a file with no video with
animated ass subtitles and then turned on the video later, the subtitles
would not actually be rendered animated. This because the subtitles were
already decoded, and we do not do a check for animations expect in the
specific case of an image being played back on the video since the check
can be quite expensive. To fix this edge case, we just need to reset the
ass before doing the track switch in the case where we go from no video
to a track that's an image. SD_CTRL_RESET_SOFT is added as a a sub_ctrl
to accomplish this. Fixes#17268.
Instead of hardcoding the threshold and keep duration in a header,
expose them as options for users to configure and set old hardcoded
values as the new defaults for those options.
This lets users specify any possible pair of characters to remote text
from in the SDH filter as opposed to the old way which would
automatically map ( to ) internally.
Additionally, this fixes#16597 because the old implementation relied on
looping over a single string using strlen for matching chars. That
doesn't work because strlen loops over bytes and non-ASCII characters
can have multiple bytes leading to false positives since the bytes could
match. There's various ways to deal with this, but simply using mpv's
internal stringlist type sidesteps that problem.
Since the option system now handles all the path expansion
automatically, these recent changes can be reverted for simplicity.
This reverts commit be15be3a83.
Unknown duration subtitle handling must be executed on every decode
call, because we are actually adjusting the duration value of subtitles
that are decoded in the past. It should not only execute when the
newest packet has an unknown duration.
Notably they are exchanged between demux and decode thread. It's fine
because we know those pointers will be alive as long as avctx is alive.
And only the value may change during decoding in rare situations. Make
those pointers atomic for the sake of it.
It shouldn't change anything, except some codegen.
From https://www.gnu.org/software/libc/manual/html_node/Atomic-Types.html#Atomic-Types:
In practice, you can assume that int is atomic. You can also assume that
pointer types are atomic; that is very convenient. Both of these
assumptions are true on all of the machines that the GNU C Library
supports and on all POSIX systems we know of.
This update introduces a demux_packet_pool, allowing for the reuse of
previously allocated packets when needed.
sizeof(AVPacket) is not a part of the lavc public ABI, which prevents us
to allocate memory in larger blocks. However, we can substantially
decrease the amount of alloc/free operations during playback by reusing
both mpv's demux_packet and AVPacket.
This adjustment addresses the root cause of issue #12076, which,
although resolved upstream, did not fully tackle the persistent problem
of allocating small blocks of aligned memory. This issue largely stems
from the FFmpeg design of the AVPacket API. After this change memory
will no longer be allocated once cache limits is reached.
The demux_packet_pool is shared as a global pool of packets for a given
MPContext.
This change significantly speeds up the demuxer deinitialization,
benefiting file switching scenarios, especially when a large demuxer
cache is used.
See: #12294
See: #12563
Signed-off-by: Kacper Michajłow <[email protected]>
There's several path-related options that do not handle common shortcuts
(like ~/). Fix this by using mp_get_user_path where appropriate which
expands the path so users get more intuitive behavior. Fixes#15598.
A packet with an unknown duration flagged the entire context and then
this was saved forever throughout the entire lifetime of the object.
This inherently doesn't work with the redecoding sub logic which will go
through all the packets again. So the second time around, packets with
known durations get treated as if they were unknown and things go awry.
Rework this so it is per packet like it should be and not a global
state. Note that f9cefbfec4 originally
added this for specifically eia-608 subtitles but their packets are all
detected as unknown anyway due to the durations so this is not needed
anymore and interferes with other things.
ASS_OVERRIDE_BIT_STYLE includes ASS_OVERRIDE_BIT_ATTRIBUTES, which we
don't want.
This prevents --sub-ass-override=force from overriding attributes such
as bold, italics, underline or strikeout to mpv defaults.
It is unclear whether there actually is any usecase for this option
which isn't better served by sub-ass-use-video-data and/or LayoutRes
overrides, but prior to the introduction of sub-ass-use-video-data
it was possible to pass along storage resolution while faking an
aspect ratio of 1:1.
sub-ass-video-aspect-override=1 combined with sub-ass-use-video-data=all
now makes this possible again.
The uper limit of a 10:1 aspect matches
the general video-aspect-override option.
The naming for "blur-compat" was misleading since the setting
actually affects more than just blur affects. Additionally
forwarding storage resolution but forcing an aspect ratio
of 1.0 for the video is likely to result in odd rendering
and there’s no known usecase for it.
Both options control which video properties are exposed to libass
so to fix the aforementioned issues merge these settings into one
tri-state sub-ass-use-video-data.
The default V keybind now cycles through all states of
use-video-data instead of toggling vsfilter-aspect-compat.
Resolves: https://github.com/mpv-player/mpv/issues/10680
--sub-margin-y is documented to scale with font size, which is scaled
"by" or "with" window depending on the options. However, when using
ass_set_font_scale to change font size, the y margin isn't scaled, so it is
still scaled to video size. This causes the y margin size becoming smaller
when the video becomes smaller, even when the font size isn't changing.
Fix this by also scale the MarginV with the font scale. Also use lrint
instead of round.
By default, libass scales subtitle with video size.
When --sub-scale-with-window is enabled, mpv attempts to undo this scale
and use window size instead. However, the current bahavior is incorrect
when use_margins is enabled, because in this case libass uses the size
of video as if it's "fit" to the window, instead of the displayed size.
As a result, subtitle scale is broken when video-zoom is used in this case:
when zooming out video, the subtitle is scaled up.
Fix this by using the correct factor when use_margins is enabled.
Using strchr should be faster as it is optimized for the job. Also
ensure that tags are not escaped and are within {} correctly. This also
is important for performance as it allows to scan only needed areas of
the string.
Co-authored-by: Avi Halachmi (:avih) <[email protected]>
Co-authored-by: rcombs <[email protected]>
4e5d996c3a added this as part of a series
of patches written to avoid wasteful sub redraws when playing a still
image with subs. The is_animated special case was specifically for ASS
subtitles that have animations/effects and would need repeated redraws
in the still image case. This check was done unconditionally for all ASS
subtitles, but for very big ASS subtitles, this text parsing can get a
bit expensive.
Because this function call is only ever needed for the weird edge case
of ASS subtitles over a still image, some additional logic can be added
to avoid calling is_animated in the vast majority of cases. The animated
field in demux_packet can be changed to a tristate instead where -1
indicates "unknown" (the default state). In update_subtitle, we can look
at the current state of the video tracks and decide whether or not it is
neccesary to perform is_animated and pass that knowledge to sd_ass
before any subtitle packets are decoded and thus save us from doing this
potentially expensive call.
Users shouldn't have to care if subtitles' duration is unknown because
the only difference is that decode() sets a duration to packets without
one, if any.
The main difference was code intentionally breaking sub-seek, sub-step,
sub-start and sub-end for unknown duration subtitles for some reason,
but I removed it in 0f2370476b and 185fa9ffc6.
LRC subtitles always have unknown duration so if you use them having
this logged on every song is annoying, so only log it in verbose mode.
Enable ASS_FEATURE_{WHOLE_TEXT_LAYOUT, BIDI_BRACKETS} and auto base
detection by default, and add an option to disable this if needed.
This is strictly an improvement for webvtt files as they always use
auto base detection. This _fixes_ right-to-left text rendering for
webvtt files which correctly mark rtl/ltr. Webvtt files obtained from
sources which sideload the RTL information through css also see an
improvement due to the auto detection.
Generally SRT files also want this, but some are also written to
workaround VSFilter quirks.
See also: https://github.com/mpv-player/mpv/pull/12985#issuecomment-1839565138
0b35b4c917 originally introduced sd_filter
to make a more general subtitle filter infrastructure. But when doing
so, it directly sets ft->event_format to ass_track->event_format in the
struct. The lifetime of ass_track and the sd_filter are not equivalent
which makes it easy to trigger undefined behavior. Notably, commit
cda8f1613f introduced assobjects_destroy
which can destroy ass_track anytime during runtime which means that the
string in ft->event_format is actually freed and should never be used.
Remedy this by simply doing a proper strdup when the filter inits with
ft as the parent so we avoid this scenario altogether. Fixex #13525.
An ass event like `{\p1\pos{1,1}}m 0 0 l -3 -7 l 11 -7 l 11 -2` ends
the drawing mode started with `\p1` due to `\pos` gets confused with
`\p`, and thus that line is wrongly considered to be visible text.
LRC subtitles can have lines with multiple timestamps, e.g.
[00:00.00][00:02.00]foo
[00:01.00]bar
Currently mpv shows only the "foo" that was decoded first, because it
compares the packet file position to check if a packet was already seen,
and it is the same for both occurrences of "foo". Fix this by also
comparing the pts.
This keeps comparing the packet position on top of the pts to not break
subtitle lines with the same timestamp, like:
1
00:00:00,000 --> 00:00:01,000
foo
2
00:00:00,000 --> 00:00:01,000
bar
where mpv shows both lines on top of each other. They are common in ASS
subtitles.
Fixes https://github.com/mpv-player/mpv/issues/13497.
idontwannagoo