On Thu, Mar 09, 2017 at 03:27:16PM -0500, Calvin Walton wrote: > 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. > --- > libavfilter/avf_concat.c | 15 ++- > tests/fate/filter-video.mak | 4 +- > tests/ref/fate/filter-concat-vfr | 224 > +++++++++++++++++++++++++++++++++++++++ > 3 files changed, 241 insertions(+), 2 deletions(-) > create mode 100644 tests/ref/fate/filter-concat-vfr
seem to fail on x86-32 make: *** No rule to make target `tests/data/filtergraphs/concat-vfr', needed by `fate-filter-concat-vfr'. Stop. make: *** Waiting for unfinished jobs.... [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The misfortune of the wise is better than the prosperity of the fool. -- Epicurus
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