| Commit message (Collapse) | Author | Age | Files | Lines |
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Sometimes this hints that there's a bug, but sometimes it's normal.
Since the code for --end/--frames puts frames that should not be shown
anymore back into the pin, using those options will show this warning
when playback ends. This is a minor annoyance. We could change how it's
done (e.g. set an explicit flag somewhere), but that seems bothersome,
so just change the message from warning to verbose.
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The rest of the function should be executed only if both are set. It
seems like in practice this didn't happen yet with only one of them
unset, but in theory it's possible. Found by Coverity.
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There was the following problem: if a filter graph had asynchronous
filters, and the filter graph user did not call mp_filter_run() (and
only accessed the mp_pins), then filtering could stall, because using
mp_pin_out_request_data() only recursively invoked filtering if the
data_requested flag wasn't already set. The latter can happen if a
request was tried earlier but failed, and then an asynchronous filter
actually produced output that would satisfy the request. Obviously, it
has to invoke filtering again to get the requested frame.
Fix this by organizing the code differently, and making sure to invoke
mp_filter_run() on every request (if there's nothing to do, it doesn't
do anything anyway). Simplify it a bit by removing things which are not
needed, like connecting filter graphs with different root filters.
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Avoids that the audio decoder shows up with a "[root/ad]" log prefix.
This is an annoying consequence of mp_log_new(): if a log parent doesn't
have a prefix with "!", it'll add the prefix to all mp_logs created from
it. This should probably be fixed in the mp_log code itself, but doing
so would be a big deal as we'd have to make sure all the other log
prefixes are what we want. So work it around for now.
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Another "what was I thinking" thing - destroying filters explicitly
skipped async wakeups for no reason. These were notifications for
filters that are not going to be destroyed too, and so their wakeup will
be lost, leading to stalled playback. This is completely unnecessary and
the special code can be removed.
Fixes #5488. (This case destroyed all audio filters due to AO init
failure, which could make clear out the f_demux_in.c wakeup for video,
and "freeze" playback.)
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I guess this is generally useful for filters which buffer data
internally.
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Get rid of the old vf.c code. Replace it with a generic filtering
framework, which can potentially handle more than just --vf. At least
reimplementing --af with this code is planned.
This changes some --vf semantics (including runtime behavior and the
"vf" command). The most important ones are listed in interface-changes.
vf_convert.c is renamed to f_swscale.c. It is now an internal filter
that can not be inserted by the user manually.
f_lavfi.c is a refactor of player/lavfi.c. The latter will be removed
once --lavfi-complex is reimplemented on top of f_lavfi.c. (which is
conceptually easy, but a big mess due to the data flow changes).
The existing filters are all changed heavily. The data flow of the new
filter framework is different. Especially EOF handling changes - EOF is
now a "frame" rather than a state, and must be passed through exactly
once.
Another major thing is that all filters must support dynamic format
changes. The filter reconfig() function goes away. (This sounds complex,
but since all filters need to handle EOF draining anyway, they can use
the same code, and it removes the mess with reconfig() having to predict
the output format, which completely breaks with libavfilter anyway.)
In addition, there is no automatic format negotiation or conversion.
libavfilter's primitive and insufficient API simply doesn't allow us to
do this in a reasonable way. Instead, filters can use f_autoconvert as
sub-filter, and tell it which formats they support. This filter will in
turn add actual conversion filters, such as f_swscale, to perform
necessary format changes.
vf_vapoursynth.c uses the same basic principle of operation as before,
but with worryingly different details in data flow. Still appears to
work.
The hardware deint filters (vf_vavpp.c, vf_d3d11vpp.c, vf_vdpaupp.c) are
heavily changed. Fortunately, they all used refqueue.c, which is for
sharing the data flow logic (especially for managing future/past
surfaces and such). It turns out it can be used to factor out most of
the data flow. Some of these filters accepted software input. Instead of
having ad-hoc upload code in each filter, surface upload is now
delegated to f_autoconvert, which can use f_hwupload to perform this.
Exporting VO capabilities is still a big mess (mp_stream_info stuff).
The D3D11 code drops the redundant image formats, and all code uses the
hw_subfmt (sw_format in FFmpeg) instead. Although that too seems to be a
big mess for now.
f_async_queue is unused.
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