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.
Disabled by default because it breaks sub-seek and playback in cases
where the user changes play-dir from + to - during runtime and past
"seen" events need to be re-rendered.
Available since dcc9eb722e
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) <avihpit@yahoo.com>
Co-authored-by: rcombs <rcombs@rcombs.me>
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.
The previous commits optimized sub redrawing on still images/terminal so
mpv wouldn't redraw so much. There is a gap though. It only assumes
static subtitles. Since ASS can be animated, those types of subtitles
will always need redraws so we need to build in specific detection for
this. We need to build a whitelist of events in ASS that are considered
animations and then flag the packet. Additionally, there's a bunch of
annoying bookkeeping that has to be done since packets can be dropped on
seeks and so on.
This only affects two special cases: printing subtitles to the terminal
and printing subtitles on a still picture. Previously, mpv was very dumb
here and spammed this logic on every single loop. For terminal
subtitles, this isn't as big of a deal, but for the image case this is
pretty bad. The entire VO constantly redrew even when there was no need
to which can be very expensive depending on user settings.
Instead, let's rework sub_read_packets so that it also tells us whether
or not the subtitle packets update in some way in addition to telling us
whether or not to read more. Since we cache all packets thanks to the
previous commit, we can leverage this information to make a guess
whether or not the current subtitle packet is supposed to be visible on
the screen. Because the redraw now only happens when it is needed, the
mp_set_timeout_hack can be removed.
f9cefbfec4 made it so mp_ass_flush_old_events() is continously called on
subtitles with unknown duration, without explaining why, breaking
sub-seek/step -1 with a VO (the issue does not occur when showing
subtitles in the terminal because get_bitmaps() is not called). I don't
experience any issue after removing the call, so delete it to fix these
commands.
After removing that, you can sub-seek -1 once after regular playback,
but not after seeking and thus not multiple times in a row. This is
caused by a714f8e928 which fixed subtitles with unknown duration being
duplicated when seeking with a VO (it does not happen in the terminal)
by clearing old lines on seeks, which broke sub-seek -1 and sub-step -1
in a second way after any seek. The proper fix is to remove the line
ctx->num_seen_packets = 0 for subtitles with unknown duration instead,
which lets decode() return early when a line has already been shown.
Having removed these 2 lines, I also removed sd->preload_ok = false, and
thus the whole conditional, since according to sub/sd.h preload_ok only
needs to be set to false when old subtitles are discarded, and they are
no longer discarded,
The bug can be reproduced with
mpv --sub-file=<(curl 'https://music.xianqiao.wang/neteaseapiv2/lyric?id=1399616170' | jq -r .lrc.lyric) 'https://www.youtube.com/watch?v=dQw4w9WgXcQ'
Missed in 3250f6e447. Note that the
hardcoded ass alignment value is not used anymore as of that commit, but
we should ideally be moving towards secondary subs actually being
customizable via ASS anyways.
Over the years, we've accumulated several secondary subtitle related
options and properties, but the implementation was not really consistent
and it wasn't clear what the right process for adding more should be. So
to make things nicer, let's refactor all of the subtitle options with
secondary variants (sub-delay, sub-pos, and sub-visibility) and split
them off to a new, separate struct. All of the underlying values are
stored in an array instead for simplicity. Additionally, the
implementation of some secondary-sub-* properties were slightly changed
so there would be less redundancy.
Stretch a subtitle duration so it ends when the next one starts.
Should help with subtitles which erroneously have zero durations.
I found such a subrip substitles stream in the wild.
Signed-off-by: Mohammad AlSaleh <CE.Mohammad.AlSaleh@gmail.com>
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.
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.
This option has exactly the same semantics are other mpv options that
override a particular thing with something from the user. So instead of
the "force-style" name, use "-overrides" which is more consistent.
The plural form is used since it's a list option.
The function called to get sub-start and sub-end returns early when the
subtitle's duration is unknown, but by just removing this check the
properties work fine. The final sub line has a very large sub-end, but
that is much better than not having the properties work at all.
