Since this is a C11 feature, it requires -std=c11.

Not actually used for anything yet, that will be added in the following
commits.

This merges libav commit 13f5d2bf.
Signed-off-by: Wan-Teh Chang <wtc@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Based on a patch by Jun Zhao <mypopydev@gmail.com>

 create_stream

before patch:
Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x714 [SAR 1:1 DAR 640:357], 25 fps, 25 tbr, 1k tbn, 50 tbc

after patch:
Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x714 [SAR 1:1 DAR 640:357], 2576 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>

mythtv have problem with non-seekable dont write duration and filesize
and there have problem with some other server and player with 0 value
duation and filesize.
So add a flv flags to fix the ticket and make a choose for users.
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

give very bad quality for soxr resampler.
linear_interp is intended for  using linear interpolation
between filter bank so quality will be better.

i guess this is misunderstood as 'do not use filter bank,
but directly interpolate linearly between samples'.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>

Fixes ticket #5973
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

This fixes a heap-buffer-overflow in ff_er_frame_end when decoding mss2
with coded_width/coded_height larger than width/height.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This dubious behaviour in nvenc was finally removed by nvidia, and
as we refuse to run on anything older than 7.0, we don't need to
keep it around for old versions.

Signed-off-by: James Almer <jamrial@gmail.com>

Requested-by: qw, applemax82 at 163 dot com
Reviewed-by: Steven Liu

MAINTAINERS: Add Vittorio to "Developers with git write access who are currently not maintaining any specific part"
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

floats are not necessarily normalized, so a normalized softfloat needs
MIN_EXP lowered by 23 to cover that range.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Doesn't decode the uint32 layer, but decodes the half part of the file.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This fixes an out-of-bounds read if avc->channels is 0.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Otherwise the codec context and codecpar might disagree on the codec id,
triggering asserts in av_parser_parse2.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

separate dsp.resample to dsp.resample_common and dsp.resample_linear
and choose to call faster resample_common even when linear_interp=on
when c->frac and c->dst_incr_mod are both zero

speed up resampling when exact_rational and linear_interp are both
enabled because exact_rational force c->frac and c->dst_incr_mod to
be zero when soft compensation does not happen

benchmark on exact_rational=on:linear_interp=on
        old     new
real    8.432s  5.097s
user    7.679s  4.989s
sys     0.125s  0.107s
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>

This is a follow-up to commit d84a2120,
which added the libavutil/tests/cpu_init.c.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes make checkheaders on systems without the Cuda Toolkit, which
was broken after the dynlink changes.
Signed-off-by: James Almer <jamrial@gmail.com>

Move global thread variables to better place.
Use correct variable for simple and complex filtergraphs.

This makes number of threads set per filter work again.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Rects with positive w/h/linesize but no data are invalid.
Reviewed-by: Petri Hintukainen <phintuka@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Expands the parser to also accept the separator '-' in addition to
'+', and take the negative sign into consideration.

The optional sign for the first factor in the expression is already
covered by parsing for an integer.
Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

scaling list is already transfered to raster scan during head parsing,
so no need to transfer it again.

And after this fix, FATE test SLIST_A_Sony_4/SLIST_B_Sony_8/
SLIST_C_Sony_3/SLIST_D_Sony_9 will pass in i965/Skylake.
Signed-off-by: Wang, Yi A <yi.a.wamg@intel.com>
Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>

avutil/tests: Add cpu_init.c to check whether the one-time initialization in av_get_cpu_flags() has data races.

Co-author: Dmitry Vyukov of Google
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Remove the |checked| variable because the invalid value of -1 for
|flags| can be used to indicate the same condition. Also rename |flags|
to |cpu_flags| because there are a local variable and a function
parameter named |flags| in the same file.

Co-author: Dmitry Vyukov of Google
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

I moved this into the handle_video_sequence callback because that's
the earliest time you can make an accurate decision as to what the
format should be.

However, transcoding requires that the decision between using
the accelerated PIX_FMT_CUDA vs a normal pix format happen at init()
time. There is enough information available to make that decision
and things work out with the underlying format only being discovered
in the sequence callback.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

This patch moves the av_frame_make_writable() call from fill_yuv_image
to get_video_frame so that its argument can be the actual frame that
will be sent to the encoder.

This fixes data corruption issues in codecs that keep references on
one or several previous frames.
Signed-off-by: Sam Hocevar <sam@hocevar.net>
Reviewed-by: wm4
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Requested-by: wm4 ([FFmpeg-devel] [PATCH] avutil/opt: Support max > INT64_MAX in write_number() with AV_OPT_TYPE_INT64)
Requested-by: ronald ([FFmpeg-devel] [PATCH] avutil/opt: Support max > INT64_MAX in write_number() with AV_OPT_TYPE_INT64)
Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Josh de Kock <josh@itanimul.li>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>