When stats.lua is used without a video window then it uses the terminal.
On Windows, however, so far it disabled ansi escape sequences and used
plaintext unless ANSICON env is set.
It's unclear why it's disabled on windows, because at the time it was
added it only used bold by default and mpv ansi emulation on windows
already supported bold at that time.
We can guess that it was disabled because if the same config is used on
both linux and Windows, and it had complex escape sequences for
stats.lue, then it would be emulated incorrectly on Windows.
This shouldn't be an issue anymore, as the last two commits both enhance
the emulation to be quite complete (and graceful where it's not), and
also enable the much-more complete native VT terminal when possible
(Windows 10).
Just remove this windows exception at stats.lua.
It is more consistent for editions/chapters to go below either
the title or filename. They are all descriptive strings about
the media itself and not file metadata like filesize.
Suggested by Argon-
Edition information is conditional based on there being more than
one edition present. It is printed on the same line as Chapters to
save vertical space.
Keys and lines-to-scroll are configurabe, and the scroll keys are only
bound on pages which support scrolling (currently only page 4) - also
during oneshot (like the page-switching keys).
Scroll offset is reset for all pages on any key - except scroll keys, so
that entering or switching to a page resets the scroll, as well as when
"re-entering" the same page or "re-activating" the stats oneshot view.
TODO: print_page(..) is highly associated with extending the oneshot
timer if required. The timer handling can probably move into print_page
and removed from all the places which boilerplate its management.
In this case, init_buffers() was not called, and the unrelated cache
sample buffers were not initialized. It appears they are indeed
completely unrelated, so move their initialization away. Not sure what
exactly the purpose of calling init_buffers() is, maybe clearing old
data when displaying stats again. The new place for initializing the
cache sample buffers should achieve the same anyway.
Fixes: #7597
Add an infrastructure for collecting performance-related data, use it in
some places. Add rendering of them to stats.lua.
There were two main goals: minimal impact on the normal code and normal
playback. So all these stats_* function calls either happen only during
initialization, or return immediately if no stats collection is going
on. That's why it does this lazily adding of stats entries etc. (a first
iteration made each stats entry an API thing, instead of just a single
stats_ctx, but I thought that was getting too intrusive in the "normal"
code, even if everything gets worse inside of stats.c).
You could get most of this information from various profilers (including
the extremely primitive --dump-stats thing in mpv), but this makes it
easier to see the most important information at once (at least in
theory), partially because we know best about the context of various
things.
Not very happy with this. It's all pretty primitive and dumb. At this
point I just wanted to get over with it, without necessarily having to
revisit it later, but with having my stupid statistics.
Somehow the code feels terrible. There are a lot of meh decisions in
there that could be better or worse (but mostly could be better), and it
just sucks but it's also trivial and uninteresting and does the job. I
guess I hate programming. It's so tedious and the result is always shit.
Anyway, enjoy.
I think that makes more sense.
And also remove the graph from the total cache usage, since that wasn't
very interesting. So there's still a total of 2 graphs.
When switching between having a video visible or not,
stats.lua now picks up the required formatting changes
for the cache stats page to display correctly.
It's deprecated. The new solution works almost exactly the same way
(since the still existing internal tick event triggers vsync-jitter
change command), though as far as API usage goes, it's somewhat
questionable. (The comment is meant to discourage anyone trying to copy
the idea for external scripts.)
This is similar to the "edition" change.
I considered making this go through deprecation, but didn't have a good
idea how to do that. Maybe it's fine, because this is pretty obscure.
But it might break some API users/scripts (it certainly broke
stats.lua), and all I have to say is sorry for that.
The readahead time should be interesting for latency vs. underruns
(which idiot protocols like HLS suffer from).
The total byte usage is less interesting than I hoped; maybe the
frequency at which it samples should be reduced. (Kind of dumb - you
want high frequency for the readahead field, but much lower for byte
usage.)
Of course, the code was copy&pasted from the DS ratio/jitter stuff. Some
of the choices may not make any sense for the new code.
Manual changes done:
* Merged the interface-changes under the already master'd changes.
* Moved the hwdec-related option changes to video/decode/vd_lavc.c.
Merge file-size/file-format and audio channel-count/format into one line
respectively. This fixes stats overflowing the screen in larger than
19:6 aspect ratios. In this case a problem was reported for ~21:9 which
should be common enough for us to "support" it.
Previously, section titles (File/Video/Audio) were printed as suffix of
a property that was assumed to always exist. However, with e.g.
lavi-complex this is not the case, therfore, print them without being
dependent on a property.
Switch from audio|video to audio|video-out-params properties as per
recommendation in #5670. These properties are tables and include
information explicitly queried later, so switch to using these tables
and reduce the amount of queried properties.
Fixes#5670
Show total cache as well as demuxer cache separately.
This adjusts the presented values to be consistent with status line
and OSC modifications made in https://github.com/mpv-player/mpv/pull/5250
Previously multiple timers were used to realize oneshot, toggling
(redrawing) and page keybindings. The oneshot case in particular also
relied on mp.osd_message to display text only for a given duration.
This was changed to only use one timer in total now. Because now each
case has a defined "start" and "end" point (including oneshot)
mp.set_osd_ass() can be used to print stats as well. This is currently
optional and has to be activated using the config option
persistent_overlay=true.
One shortcoming: oneshot and toggling are mutual exclusive right now.
Previously you could enter toggling while oneshot stats were shown,
this is not possible anymore to reduce the number of cases to be
considered. This can be added later on if desired.
It used a bad heuristic that got even worse/less reliable with recent
changes in mpv. In fact, it's not reliable at all.
Watch out for dropped frames instead. That's a useful indicator.
Previously I could trigger a bug with intense button mashing, however,
was unable to reproduce it and therefore debug it.
This change now seems to be resilient against button mashing, let's hope
it really is.
Please note that the latest version of this script needs a very recent
version of mpv (from yesterday, to be precise, see the readme).
For older versions, please go to "releases".
HOW IT WORKS:
While the stats are visible (i.e. text is printed to the OSD) a
subsequent click on a numeric key (1, 2, ...) will display the
corresponding "page".
This works no matter if the stats are toggled or just shown as a single
invocation. In case of a single invocation, the newly displayed page
will be shown for the full duration again.
The selected page will be remembered (not persistantly though).
So far, only 3 pages are available.
1: the default page, stats as they used to be
2: extensive VO performance stats (to be redesigned/changed soon)
3: dummy
In the future, many more pages are possible.
Implementation is likely to change again (functionality will stay
the same). A new timer had to be introduced to remove the forced
keybindings in the oneshot case. The toggle case can remove them without
a timer. Ensuring that each mode won't remove timers of the other mode
didn't really turn out neat.
Therefore, I intend to change this again, maybe by merging the
oneshot case into the toggle case.
Due to the large amount of per-pass data, the function takes a parameter
indicating whether or not to print a simplified view instead.
The overall intent is to print the simplified view for now, but supposed
printing the full view on a dedicated "tab" (or extra view type), and as
such, `o.print_perfdata_passes` will go away again. I've only introduced
it for now so users can play around with this functionality if they want
to, until Argon- gets around to implementing stats "tabs".
Avi Halachmi (:avih)