Add a compat dummy stdatomic.h used when threading is disabled

Adapted from the code by Rémi Denis-Courmont from VLC

This merges libav commit eb34d40354e2474517c9b9bd787e0dadc89c2a81.

Signed-off-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Add a compat stdatomic.h implementation based on pthreads

Adapted from the code by Rémi Denis-Courmont from VLC

This merges libav commit f9a6a80e065cdb95b233978f1d96ec9bc863daa1.

Signed-off-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Add a compat stdatomic.h implementation based on suncc atomics

Adapted from the code by Rémi Denis-Courmont from VLC

This merges libav commit bb81ed476569b912a37ed553e756e123b6b13b14.

Signed-off-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Add a compat stdatomic.h implementation based on windows atomics

Adapted from the code by Rémi Denis-Courmont from VLC

This merges libav commit c2755864afadfbaa349e8d583665c86fe99fa90b.

Signed-off-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Add a compat stdatomic.h implementation based on GCC atomics

Adapted from the code by Rémi Denis-Courmont from VLC

This merges libav commit 4e928ef340ac20325f529d92fcbc51e768085358.

Signed-off-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

avformat/ffmenc: Remove the last use of st->codec

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

avformat/ffmenc: Make ffm_write_header_codec_ctx() use codecpar

This would be simpler if codecpar supported AVOptions
modern ffserver should be unaffected by this, older ffserver which required the
muxer to directly access the encoder could have issues with this, but this
direct access is just wrong and unsafe

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

avformat/ffmenc: set bitexact mode for old API without accessing the encoder

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

avformat/ffmenc: Drop ffm_write_header_codec_private_ctx()

This accesses the private encoder context, it should not be used by
the current ffserver it may affect old ffserver versions but i believe
there is consens that accessing the private encoder context from the muxer
is completely wrong.

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

avformat/ffmenc: Replace some st->codec use by codecpar

Note, this temporarly drops the ability to set ffmpeg encoder debug and flags2 via ffserver.conf

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

avfilter/vf_premultiply: remove redundant semicolons

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

matroskadec: partly revert "demux relevant subtitle packets after a seek"

This reverts parts of c16582579b1c6f66a86615c5808cd5b2bf17be73. The hard
coded 30 seconds are a lot, and finishing the seek can takes several
seconds when the source is on a network share. Remove this code
entirely, because it does more bad than good.

(Commit message provided by committer, based on the original messages
by the patch author.)

Signed-off-by: Rainer Hochecker <fernetmenta@online.de>
Signed-off-by: wm4 <nfxjfg@googlemail.com>

tests/ffserver.regression.ref: Update ffserver checksums

They have changed due to 122190392b297b7cd9783641d880df887fd80d07

Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/tests/fifo_muxer: includes libavformat/network.h to define ETIMEDOUT for fate build.

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

avfilter: add premultiply filter

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

swscale: add gbr(a)p16 output support

ffserver: set format bitexact flag, eliminate warnings about it not being set

Tested-by: Reto Kromer <lists@reto.ch>
Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

doc/examples/transcode_aac: fix a typo

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

ffmpeg: assert return value is initialized

Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

lavfi: Fix aix compilation.

Rename hz in af_apulsator.c and avf_showspectrum.c as hertz.

The aix header sys/m_param.h defines hz as __hz.

avcodec/vdpau_hevc: Fix potential out-of-bounds write

The maximum number of references is 16, so the index value cannot
exceed 15.

Fixes Coverity CID 1348139, 1348140, 1348141

avcodec/crystalhd: Handle errors from av_image_get_linesize

This function can return an error in certain situations.

Fixes Coverity CID 703707.

ffserver: fix broken HTML on generated status page

Dropped incompatible/obsoleted HTML tag attributes

Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>

tools/coverity: Add model for av_realloc

Really should have done this last time. It should provide consistency
across our allocations and frees.

avcodec/h264: sse2 and avx 4:2:2 idct add8 10-bit functions

Yorkfield:
 - sse2:
   - complex: 4.13x faster (1514 vs. 367 cycles)
   - simple:  4.38x faster (1836 vs. 419 cycles)

Skylake:
 - sse2:
   - complex: 3.61x faster ( 936 vs. 260 cycles)
   - simple:  3.97x faster (1126 vs. 284 cycles)
 - avx (versus sse2):
   - complex: 1.07x faster (260 vs. 244 cycles)
   - simple:  1.03x faster (284 vs. 274 cycles)

avcodec/h264: mmx 4:2:2 idct add8 function

2.87 times faster (1830 vs. 638 cycles)

avcodec/h264: mmxext 4:2:2 chroma intra deblock/loop filter

2.1 times faster (401 vs. 194 cycles)

ffserver: use codec time_base for stream

This fixes producing swf and rm files as done by ffservertest.

Reviewed-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

tests: drop -d option from ffserver invocation

It randomly causes failures with an error like:
"Failed to set value '-f' for option 'd': Error number -920332800 occurred"

(The error number is different every time.)

Reviewed-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

tests: print errors from ffserver

Not doing so makes debugging unnecessarily hard.

Reviewed-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

tools/coverity: Add models for av_mallocz and av_free

This should deal with some false positives, but might lead to
more of them depending on whether it realises that av_freep()
wraps av_free() or not.

fate: Add test for mov displaymatrix

ffprobe: Fix displaying side data list only

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

mov: Evaluate the movie display matrix

This matrix needs to be applied after all others have (currently only
display matrix from trak), but cannot be handled in movie box, since
streams are not allocated yet. So store it in main context, and apply
it when appropriate, that is after parsing the tkhd one.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

avcodec/nvenc: mark intentional fall through

avfilter/vf_hwupload_cuda: fix potential leak

avutil/hwcontext_cuda: check for missing pixel format

avfilter/vf_scale_npp: check ff_set_common_formats return value

avfilter/vf_scale_npp: move aspect ratio correction after av_frame_copy_props

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>

avcodec/nvenc: always reduce DAR width and height

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>

avcodec/nvenc: Delay identification of underlying format of cuda frames

When input surfaces are cuda frames, we will not know what the actual
underlying format (nv12, p010, etc) is at surface allocation time.

On the other hand, we will know when the input frames are actually
registered and associated with a surface.

So, let's delay format discovery until registration time, which is
actually how we handle other frame properties, such as dimensions.

By itself, this change doesn't allow for transcoding of 10bit
content from cuvid, but it reduces the problem to the hardcoding of
the sw format in ffmpeg_cuvid.c

Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>

ffserver: Add client requested urls to the status page

Fixes Ticket3791

Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avidec: fix leaking extradata

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

matroskadec: prevent access of elements after freeing

Using the decode interrupt feature of ffmpeg may cause crashes by
accessing previously freed pointers in matroska_read_close.

To prevent this reset nb_elem to zero after freeing the elements,
because ffmpeg normally tests for nb_elem.

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

avcodec/flac_parser: Update nb_headers_buffered

Fixes infinite loop
Fixes: fuzz.flac

Found-by: Frank Liberato <liberato@google.com>
Reviewed-by: Frank Liberato <liberato@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

idroqdec: fix leaking pkt on failure

The code calls av_new_packet a few lines above and the allocated memory
has to be freed in case of an error.

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

fate: update after addition of gray10 to lavc/raw

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

tests/ffserver-regression: Check the status page too

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

ffsrever: Make the status page bitexact if any stream is bitexact

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

ffserver_config: Setup codecpar in add_codec()

fixes segfault in the status page code

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

tests/ffserver.regression.ref: update ffserver checksums

Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

tests/ffserver-regression.sh: give wget a timeout and prevent retries

Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/idroqdec: Check chunk_size for being too large

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

avfilter/vf_masked*: add gray10 and gray12 support

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

avfilter/vf_bitplanenoise: add gray10 and gray12 suppport

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

avfilter/vf_extractplanes: add extract support for 10bit and 12bit formats

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

avfilter/vf_waveform: add gray10 and gray12 support

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

avcodec/raw: add gray10 support in nut

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

avcodec/msrledec: implement vertical offset in 4-bit RLE

The delta escape (2) is supposed to work the same in 4-bit RLE as in
8-bit RLE.  This is documented in the MSDN Bitmap Compression page:
https://msdn.microsoft.com/en-us/library/windows/desktop/dd183383(v=vs.85).aspx

The unchecked modification of line is safe, since the loop condition
(line >= 0) will check it before any pixel data is written.

Fixes ticket #5153 (output now matches ImageMagick for the provided sample).

Signed-off-by: Daniel Verkamp <daniel@drv.nu>

tests: Fix running ffserver under qemu

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

tests/Makefile: Fix ffservertest dependencies

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

ffserver: Remove last use of AVStream size

Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

ffserver: Remove some deprecated API use related to codec/codecpar

Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

ffserver: Remove use of AVStream as a intermediate to store parameters

Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

ffserver: drop FeedData, its unused

Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

tests/ffserver-regression.sh: Fix file truncation introduced in 508826f961caf662cadb7c253e3c0e7d75104bdd

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

libvpxenc: Report encoded VP9 level

Report the actual level of the encoded output if a level is
targeted or the level is passively tracked with a target of 0.

vf_colorspace: Forbid odd dimensions

This prevents writing past bounds.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

ffmpeg_opt: Fix starttime with ffm in bitexact mode

This fixes some differences between runs of the ffserver tests
(in my local tree 2 runs gave the same result with this but i had other
 changes too)

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

pngdec: check if previous frame exists instead of trusting sequence_number

This fixes a segmentation fault caused by calling memcpy with NULL as
second argument in handle_p_frame_apng.

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

tests/ffserver.conf: Force bitexactness in the ffmpeg command

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

avformat/rmenc: Check framerate before storing

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

lavfi/f_ebur128: relicense to LGPL

All copyright holders have agreed to the relicensing.

Approved-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Approved-by: David Sedacca <sedacca@comcast.net>
Approved-by: Ganesh Ajjanagadde <gajjanag@mit.edu>
Approved-by: Jean First <jeanfirst@gmail.com>
Approved-by: Kyle Swanson <k@ylo.ph>
Approved-by: Michael Niedermayer <michael@niedermayer.cc>
Approved-by: Nicolas George <george@nsup.org>
Approved-by: Paul B Mahol <onemda@gmail.com>
Approved-by: Thilo Borgmann <thilo.borgmann@mail.de>

avcodec/me_cmp: Fix median_sad size

Fixes out of array read
Fixes: COV1396255

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

ffserver: Remove extract_mpeg4_header()

This should not be needed, our AVParsers should do this
I do not have a testcase though, please help testing this and please
add fate tests if you can.

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

Revert "ffserver: use AVStream.codecpar in open_input_stream()"

Fixes null pointer dereference

Testcase is simply a ffmpeg instance sending a stream to ffserver while another ffmpeg reads from it

This reverts commit 6f0a1710d77dde0d803861506a2157a23f08c14c.

configure: check for stdatomic.h

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 13f5d2bf75b95a0bfdb9940a5e359a719e242bed.

Signed-off-by: Wan-Teh Chang <wtc@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avfilter/vf_zscale: export approximate gamma option and enable it by default

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

avformat/utils: Fix type mismatch

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

lavf: always forward codec_whitelist in avformat_find_stream_info

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

dxva2_vc1: support multiple slices

vc1dec: support multiple slices in frame coded images with hwaccel

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

refine avformat/flvdec set bit_rate

avformat/flvdec: move set bit_rate from parse AMF OBJECT to
 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>

avformat/flvenc: fix ticket 5976 and use old commit

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>

swresample/soxr: fix invalid use of linear_interp

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>

avcodec/aac_adtstoasc_bsf: validate and forward extradata if the stream is already ASC

Fixes ticket #5973

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

mss2: only use error correction for matching block counts

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>

avcodec/nvenc: Remove aspect-ratio decompensation logic

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.

avcodec/mpeg4audio: correctly propagate meaningful error values

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

lavf/flvdec: Set avg_frame_rate for video streams.

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>

MAINTAINERS: Add developers who have git write access but are otherwise not listed

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

softfloat: decrease MIN_EXP to cover full float range

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>

fate/exr: add test for pxr24 with half and uint32 channel

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

libavcodec/exr: add support for uint32 channel decoding with pxr24

Doesn't decode the uint32 layer, but decodes the half part of the file.

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

libopusdec: default to stereo for invalid number of channels

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>

flvdec: require need_context_update when changing codec id

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>

swresample/resample: optimize exact_rational=on:linear_interp=on case

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>

fate/swresample: add resample exact_lin and exact_lin_async test

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