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Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
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Right now, the concat filter does not set the frame_rate value on any of
the out links. As a result, the default ffmpeg behaviour kicks in - to
copy the framerate from the first input to the outputs.
If a later input is higher framerate, this results in dropped frames; if
a later input is lower framerate it might cause judder.
This patch checks if all of the video inputs have the same framerate, and
if not it sets the out link to use '1/0' as the frame rate, the value
meaning "unknown/vfr".
A test is added to verify the VFR behaviour. The existing test for CFR
behaviour passes unchanged.
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This new FATE test for the scale2ref filter makes use of the recently
added scale2ref-specific variables to maintain the aspect ratio of a
test input.
Filtergraph explanation:
[main] has an AR of 4:3. [ref] has an AR of 16:9.
640 / 4 = 160. So the new width for [main] is 160.
160 / ((320 / 240) * (1 / 1)) = 160 / (4 / 3) = 120. So the new
height for [main] is 120.
160 / 120 = 4 / 3 so [main]'s aspect ratio has been maintained while
using [ref]'s width as a reference point.
[ref] is nullsink'd since it is left unchanged by scale2ref (and so
shouldn't need to be tested).
If we were to use "iw/4:-1" in place of "iw/4:ow/mdar":
640 / 4 = 160. So the new width for [main] would be 160.
360 / 4 = 90. So the new height for [main] would be 90.
160 / 90 = 16 / 9 so [main] now has the same aspect ratio as [ref]
which is probably what you do not want.
This is currently the only test for scale2ref.
Signed-off-by: Kevin Mark <kmark937@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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2-channels convolution using complex fft
improves speed significantly
not sure if it should be enabled by default
so disable it by default
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
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Tested-by: Michael on x86-32/64 linux, mingw, mips/arm qemu linux
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Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
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* qatar/master:
FATE: add a test for the ONE_STR mapping mode of the channelmap filter
Conflicts:
tests/fate/filter-audio.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'b318106fae65149356934fc72feafef3272fd4ea':
FATE: add a test for the lavr mixing case fixed in fc6a3ef40d34ce8443ae57c2452f3f273d7d4891
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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fc6a3ef40d34ce8443ae57c2452f3f273d7d4891
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* commit '874838dc6589d978611c89a40694a5074f892a76':
fate: add one select filter test
Conflicts:
tests/fate/filter-video.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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This test selects alternate frames from input.
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Should fix a FATE failure.
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Also make life test a bit more useful.
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The standalone alphaextract tests are removed since already the filters
are already tested by the alphamerge tests.
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* commit 'ba8efac977f4276f05274947b2b67d144cbc965a':
af_channelmap: switch to an AVOptions-based system.
Conflicts:
doc/filters.texi
libavfilter/af_channelmap.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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