swresample/resample_template: Reorder operations to avoid one addition

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

swresample/swresample: Check count before memcpy()

Fixes undefined operation
Fixes part of 668007-media

Found-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mpeg4videodec: Fix undefined shifts in mpeg4_decode_sprite_trajectory()

Fixes: part of 670190.ogg
Found-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/oggdec: Skip streams in duration correction that did not had their duration set.

Fixes: part of 670190.ogg
Fixes integer overflow

Found-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

h264_slice: Wait for refs to be available before we use them in error concealment

This could happen when there was a frame number gap and frame threading was used.

This fixes #5458.

Debugging-by: Ronald S. Bultje <rsbultje@gmail.com>
Debugging-by: Justin Ruggles <justin.ruggles@gmail.com>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

fate: add a monoscopic spherical matroska test

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

fate: improve fate-mov dependencies

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/ffv1enc: Allocate smaller packet if the worst case size cannot be allocated

We are checking during encoding if there is enough space as version 4 needs that
check.

Fixes Ticket6005

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

avcodec/ffv1enc: Fix size of first slice

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

aacdec: Rename elem_type_prev to che_prev_type.

It describes the type of the previous che element (SCE, CPE, CCE, or
LFE) and does not reflect non-che elements.

aacdec: Allow SBR after DRC.

Fixes https://www2.iis.fraunhofer.de/AAC/7.1auditionOutLeader_v2_rtb.mp4

Reported-by: rcombs on IRC

doc/muxers: remove "-strict experimental" from tee muxer examples

Examples use the native FFmpeg AAC encoder but it is no longer
considered experimental and therefore not required.

Signed-off-by: Lou Logan <lou@lrcd.com>

avfilter/vf_deband: fix silly mistakes

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

avformat: Add max_streams option

This allows user apps to stop OOM due to excessive number of streams

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

aarch64: h264idct: Use the offset parameter to movrel

Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 6a62795d4051f435a9a2c59395d96913693922f8)
Cherry pick Suggested-by: Martin Storsjö

This should fix the build failure on macosx

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

avfilter/vf_hwupload_cuda: Add min/max limits for the 'device' option

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

avformat/matroskadec: remove unused variable

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

avformat/matroskadec: fix memleak on stream side data failure

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

avcodec/golomb: Consume invalid data in get_ur_golomb_jpegls()

Fixes slow loops on fuzzed data
Fixes: 245/fuzz-3-ffmpeg_AUDIO_AV_CODEC_ID_FLAC_fuzzer
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/matroskadec: add support for Spherical Video elements

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

yuv4mpegdec: fix leaking pkt in yuv4_read_packet

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

avcodec/h264: resolve assert being triggered when stack is not aligned

32-bit msvc.

fate: Add a monoscopic spherical mov test

mov: Export spherical information

This implements Spherical Video V1 and V2, as described in the
spatial-media collection by Google.

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

lavc: Add spherical packet side data API

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

lavu: Add AVSphericalMapping type and frame side data

While no decoder currently exports spherical information, this type
represents a frame property that has to be passed through from container
to frames.

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

avcodec/wavpack: Treat the first block coding too many channels as an error

Fixes memleak
Fixes: 236/8aeebc9ca49b91bf71c114dcefac56c154a3a563
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/hlsenc: save the EXT-X-DISCONTINUITY from old list

when use fix ticket 2nd problem.

command line test step:
rm -rf output*;./ffmpeg  -i ~/Movies/objectC/facebook.mp4 -an -c:v copy
-f hls -hls_time 4 -hls_list_size 5 -hls_flags +delete_segments
-hls_flags +append_list -hls_flags +omit_endlist -hls_flags
+discont_start -t 50 output.m3u8
./ffmpeg -i ~/Movies/objectC/facebook.mp4 -an -c:v libx264 -g 4 -f hls
-hls_time 4 -hls_list_size 5 -hls_flags +delete_segments -hls_flags
+append_list -hls_flags +omit_endlist -hls_flags +discont_start -t 5
output.m3u8
./ffmpeg -i ~/Movies/objectC/facebook.mp4 -an -c:v libx264 -g 4 -f hls
-hls_time 4 -hls_list_size 5 -hls_flags +delete_segments -hls_flags
+append_list -hls_flags +omit_endlist -hls_flags +discont_start -t 5
output.m3u8

result:
 #EXTM3U
 #EXT-X-VERSION:3
 #EXT-X-TARGETDURATION:5
 #EXT-X-MEDIA-SEQUENCE:6
 #EXTINF:4.120000,
 output6.ts
 #EXT-X-DISCONTINUITY
 #EXTINF:4.000000,
 output7.ts
 #EXTINF:0.960000,
 output8.ts
 #EXT-X-DISCONTINUITY
 #EXTINF:4.000000,
 output9.ts
 #EXTINF:0.960000,
 output10.ts

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

avcodec/h264: mmx2, sse2, avx 10-bit 4:2:2 h chroma deblock/loop filter

Yorkfield:
 - mmx2: 2.53x (504 vs. 199 cycles)
 - sse2: 3.83x (504 vs. 131 cycles)

Nehalem:
 - mmx2: 2.42x (365 vs. 151 cycles)
 - sse2: 3.56x (365 vs. 103 cycles)

Skylake:
 - mmx2: 1.81x (308 vs. 170 cycles)
 - sse2: 2.84x (308 vs. 108 cycles)
 - avx:  2.93x (308 vs. 105 cycles)

avcodec/h264: mmx2, sse2, avx 10-bit h chroma deblock/loop filter

Yorkfield:
 - mmx2: 2.45x (279 vs. 114 cycles)
 - sse2: 3.36x (279 vs.  83 cycles)

Nehalem:
 - mmx2: 2.10x (192 vs.  92 cycles)
 - sse2: 2.84x (192 vs.  68 cycles)

Skylake:
 - mmx2: 1.75x (170 vs.  97 cycles)
 - sse2: 2.47x (170 vs.  69 cycles)
 - avx:  2.47x (170 vs.  69 cycles)

whitespace changes after last commit

avcodec/h264: clean up and expand x86 function definitions

qsvdec: Fix memory leak

Fixes CID1396851.

omx: Fix OOM check

Also use av_mallocz_array().

Fixes CID1396839.

lavf/chromaprint: Update for version 1.4

Fixes ticket #5997.

Added test for libavcodec/avpacket.c

Signed-off-by: Thomas Turner <thomastdt@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

tests/api/api-seek-test: check all compute_crc_of_packets() calls

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

tests/api/api-seek-test: Silence compiler warnings about uninitialized variables

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

tests/api/api-seek-test: Fix use of uinitialized value

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

avformat/dump: remove line break on mastering display metadata info dump

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

avcodec/vaapi-vp9: add support for profile 2 (bpp > 8)

Signed-off-by: Mark Thompson <sw@jkqxz.net>

avcodec/vp9: move bpp to the shared context for use in hwaccel

Signed-off-by: Mark Thompson <sw@jkqxz.net>

truemotion1: fix leaking frame on init failure

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

http: move chunk handling from http_read_stream() to http_buf_read().

http: make length/offset-related variables unsigned.

Fixes #5992, reported and found by Paul Cher <paulcher@icloud.com>.

vaapi_encode: Write sequence header as extradata

Only works if packed headers are supported, where we can know the
output before generating the first frame.

(cherry picked from commit 0cf86fabfa5820596cca2cfead63c6f8df76c3f2)

lavf: fix the wrong warning msg and comments about av_find_stream_info

av_find_stream_info() was deprecated by avformat_find_stream_info(),
correct the warning message in the avformat_find_stream_info() and
comments in the avformat.h

Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

ffserver: Check chunk size

Fixes out of array access

Fixes: poc_ffserver.py
Found-by: Paul Cher <paulcher@icloud.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Avoid using the term "file" and prefer "url" in some docs and comments

This should make it less ambigous that these are URLs

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

avformat/rtmppkt: Check for packet size mismatches

Fixes out of array access

Found-by: Paul Cher <paulcher@icloud.com>
Reviewed-by: Paul Cher <paulcher@icloud.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

zmqsend: Initialize ret to 0

Fixes CID1396857.

configure: check for strtoull on msvc

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

avformat/hlsenc: fix ticket id 5988 for DISCONTINUITY

add EXT-X-DISCONTINUITY tag at the position of the append point.

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

avcodec/flacdec: Fix undefined shift in decode_subframe()

Fixes undefined behavior
Fixes: 639961-media
Found-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/get_bits: Fix get_sbits_long(0)

Fixes undefined behavior
Fixes: 640889-media
Found-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/flac: forward errors from ff_flac_parse_streaminfo()

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

avcodec/flac: Check bps in ff_flac_parse_streaminfo()

avformat/ffmdec: Silence "may be used uninitialized in this function" warnings

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

avformat/ffmdec: cleanup on extradata memory allocation failure

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

avformat/ffmdec: Forward error code from ffm_read_header()

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

swresample/resample: do not rebuild filter when sample_delta is zero

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

avcodec/flacdec: Fix signed integer overflow in decode_subframe_fixed()

Fixes undefined behavior
Fixes: 640912-media
Found-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/flacdsp_template: Fix undefined shift in flac_decorrelate_indep_c

Fixes: left shift of negative value
Fixes: 668346-media
Found-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/ffmdec: remove last use of st->codec

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

lavf/asfdec_f: Remove CR/LF from avpriv_request_sample() call.

lavc: Remove CR/LF from avpriv_request_sample() calls.

ffserver: remove one avcodec_context_copy()

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

avformat/ffmdec: Drop flags2, debug and codec->time_base setting

It should still be possible to set these through recommended_encoder_configuration

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

avformat/ffmdec: Check media type for chunks

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

avformat/ffmdec: replace most codec uses by codecpar

This is a bit messy as codecar does not support AVOptions so we need
to use AVCodecContext where AVOptions are required and copy back and forth.

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

avformat/ffmdec: Remove some st->codec uses which set encoder parameters

Modern ffserver should not need these

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

configure: Fix standalone compilation of the rtp muxer.

Reported and suggested by: me at juneoh dot net

Fixes ticket #5989.

avformat/oggparsespeex: Check frames_per_packet and packet_size

The speex specification does not seem to restrict these values, thus
the limits where choosen so as to avoid multiplicative overflow

Fixes undefined behavior
Fixes: 635422.ogg
Found-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/utils: Check start/end before computing duration in update_stream_timings()

Fixes undefined behavior
Fixes: 637428.ogg
Found-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

compat/atomics: rename header guards

Fixes fate-source.

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

fate: rename fate-mov-init-nonkeyframe ref file

Fixes the test. Regression since 059a786c20201fe4040738c99b02cca0cfc18a74

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

hevc: Support extradata changes

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

hevc: Allow parsing external extradata buffers

fate/mov: Rename a couple of entries to respect the file naming scheme

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