compat/windows/makedef: Allow building shared libs with MSVC under WSL

A similar patch was posted by Gilles Khouzam in his blog.

avdevice/alsa: fix indefinite stop on closing PCM capture

Fixes: https://bugs.archlinux.org/task/58619
Found-by: Elias (Bleuzen) https://bugs.archlinux.org/user/26956
Signed-off-by: Nicolas George <george@nsup.org>

libavformat/mov: limit nb_frames_for_fps to INT_MAX

It's this or add overflow detection in mov_read_header().

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

avfilter/af_surround: export more channel's in/out gains

avfilter/af_surround: switch to activate

avfilter/af_surround: expose window size to user

avfilter/af_surround: add 6.1/6.0 upmix from stereo

avcodec/cuviddec: improve progressive frame detection

There are 2 types of problems when using adaptive deinterlace with cuvid:

1. Sometimes, in the middle of transcoding, cuvid outputs frames with visible horizontal lines (as though weave deinterlace method was chosen);
2. Occasionally, on scene changes, cuvid outputs a wrong frame, which should have been shown several seconds before (as if the frame was assigned some wrong PTS value).

The reason is that sometimes CUVIDPARSERDISPINFO has property progressive_frame equal to 1 with interlaced videos.
In order to fix the problem we should check if the video is interlaced or progressive in the beginning of a video sequence (cuvid_handle_video_sequence).
And then we just use this information instead of the property progressive_frame in CUVIDPARSERDISPINFO (which is unreliable).

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

examples/avio_reading: Use avio_context_free() to free AVIOContext

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

avfilter/af_surround: make channel spread from stereo image user configurable

avfilter/af_surround: add lfe_mode option

avfilter/af_surround: avoid divisions with very small numbers

avformat/mpegenc - reject unsupported audio streams

Only MP1, MP2, MP3, 16-bit PCM_DVD, PCM S16BE,
AC3 and DTS audio codecs are supported by the muxer.

lavf/oggparsevorbis: Fix change the case of metadata keys issue

The spec in https://xiph.org/vorbis/doc/v-comment.html states that
the metadata keys are case-insensitive, so don't change the case
and update the fate test case.

Fix #7784

Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

avformat/dashenc: Fix a bug with writing "final" manifest

This bug was introduced in the commit 951561b64ee6c11f01daedd9dcf73276cc1e765b

avformat/dashdec: add ProgramInformation parser

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

avcodec/agm: remove ;;

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/agm: Check for too many too short codes in make_new_tree()

Fixes: SEGV on unknown address
Fixes: 14198/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AGM_fuzzer-5723579234123776
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/agm: Do not crash on invalid codes

I do not know if such vlc trees are allowed in agm, I have no specification
So i do not know if these should be treated as error, or not.
But the code does contain a check for idx < 0 already ...

Fixes: Stack-buffer-overflow in get_tree_codes
Fixes: 14189/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AGM_fuzzer-5745747003179008
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/ccaption_dec: Add a blank like at the end to avoid rollup reading from outside

Fixes: index 20 out of bounds for type 'const char *[4][128]'
Fixes: 14367/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CCAPTION_fuzzer-5718819672162304
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

lavfi/avf_showwaves: fix extra gaps at end of waveform

Fixes #5931.

avcodec/dvdec: add frame threads

lavfi/frei0r: Fixes the compilation warnings

Fixes the compilation warnings

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

doc/codecs: mention error returned for flag AV_CODEC_FLAG_DROPCHANGED

doc/mailing-list-faq: auto unsubscribe due to DMARC

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

lavfi: add colorkey_opencl filter

This is a direct port of the CPU filter.

Signed-off-by: Jarek Samic <cldfire3@gmail.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>

avfilter: add lagfun filter

avfilter/vf_lut3d: add cineSpace 3D lut support

avfilter/vf_lut3d: add cineSpace 1D lut parsing

doc/filters: list values for af_surround window function

avfilter/af_surround: allow user to change overlap and win_func

doc/APIchanges: update for 3153a6502a

Entry for added avcodec flag AV_CODEC_FLAG_DROPCHANGED

avcodec: add AV_CODEC_FLAG_DROPCHANGED to flags

Discard decoded frames which differ from first decoded frame in stream.

lavf: bump version/add APIchanges entry when cleanup applehttp

commit abfeba9 "lavf/hls: Cleanup the applehttp" missed
the version bump and APIchanges entry.

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

lavfi/fspp: Simplify a macro.

Silences a warning with clang:
warning: implicit conversion from 'int' to 'int16_t' (aka 'short') changes value from 44130 to -21406

configure: Add .exe suffix to toolchain calls.

Allows in-tree msvc compilation with wsl.

avcodec/pictordec: Only recalculate d when y changes in picmemset()

Fixes: Timeout (21->18sec)
Fixes: 14124/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PICTOR_fuzzer-5633887734071296
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/pictordec: avoid pointers in picmemset()

Improves overall speed by about 3%
Testcase: 14124/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PICTOR_fuzzer-5633887734071296

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

avcodec/wmv2dec: Check that the P frame secondary header fit in the input

Fixes: Timeout (64sec ->2 sec)
Fixes: 14131/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV2_fuzzer-5719879556005888
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/ivi: Move buffer/block end check to caller of ivi_dc_transform()

Fixes: assertion failure
Fixes: 14078/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INDEO5_fuzzer-5760571284127744
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/diracdec: Use 64bit in intermediate of global motion vector field generation

It seems the specification does not limit the value to 32bit

Fixes: signed integer overflow: -109611143 * 24 cannot be represented in type 'int'
Fixes: 13477/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5648337460527104
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/apetag: tag values are unsigned

Fixes: UBSan runtime error
Found-by: Clusterfuzz
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

libavformat: improve logs with cur_dts

This patch improves the logs when the message "cur_dts is invalid" appears.
If helps to identify which stream generates the trouble,
and the status of the stream.
A lot of users suffers with the message, and the origin varies.
The improved message can help to discover the cause.

Signed-off-by: Andreas Hakon <andreas.hakon@protonmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

tests: don't include TARGET_PATH in the sample path needlessly

The transcode() helper function will already prepend the TARGET_PATH to
the sample path, if its a relative path. This avoids an issue on
Windows, where the relative path check could fail.

lavu/hwcontext_d3d: Cast src pointers calling av_image_copy*().

Silences several warnings:
libavutil/hwcontext_d3d11va.c:413:49: warning: passing argument 3 of ‘av_image_copy’ from incompatible pointer type
libavutil/hwcontext_d3d11va.c:425:47: warning: passing argument 3 of ‘av_image_copy’ from incompatible pointer type
libavutil/hwcontext_dxva2.c:351:45: warning: passing argument 3 of ‘av_image_copy’ from incompatible pointer type
libavutil/hwcontext_dxva2.c:382:52: warning: passing argument 3 of ‘av_image_copy_uc_from’ from incompatible pointer type

lavf/vc1dec: Reduce probe score for streams with invalid frames.

Fixes ticket #7853.

lavc/alac: Make a variable unsigned.

Fixes a bogus compiler warning (max_samples_per_frame is checked):
libavcodec/alac.c: In function ‘allocate_buffers’:
./libavutil/internal.h:142:9: warning: argument 1 value ‘18446744073709551552’ exceeds maximum object size 9223372036854775807

avcodec/get_bits: unbreak get_bits_le() with cached reader

lavf/utils: Allow url credentials to contain a slash.

Fixes ticket #7816.

avutil/colorspace: add macros for RGB->YUV BT.709

tests: Add EXESUF to program calls.

Fixes fate in Windows subsystem for Linux.

rename hls_segment_filename in fate-hls-segment-size for fate

add tests/ref/fate/hls-segment-size for the fate test

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

doc/mailing-list-faq: add DMARC munging

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

doc/encoders: Fix libvpx option name arnr-maxframes.

Fixes ticket #7856.

Updated documentation for libaom encoder options.

Signed-off-by: Gyan Doshi <ffmpeg@gyani.pro>

avfilter/af_agate: implement mode option

avfilter/af_sidechaincompress: implement mode option

tests/fate: add fate-hls-segment-size for hls_segment_size test

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

avcodec/cbs_av1: use the new signed value read/write functions

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/cbs_h265: fix storage type for time_offset_value in Time Code SEI

The spec defines it as an array of signed values, inferred to 0 when not
present.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/cbs_h264: fix storage type for time_offset in Pic Timing SEI

The spec defines it as a signed value.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/cbs_h2645: add helper macros for signed values

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/cbs: add helper functions and macros to read and write signed values

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/cbs_av1: add support for Scalability Metadata

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

lavu/hwcontext_qsv: Mark a pointer as const.

Silences a warning:
libavutil/hwcontext_qsv.c:912:15: warning: assignment discards 'const' qualifier from pointer target type

lavc/libaomenc: Mark a potentially unused variable as av_unused.

Fixes a warning:
libavcodec/libaomenc.c:816:9: warning: unused variable ‘pict_type’

avformat/dashenc: Disable streaming for webm output

Currently streaming for webm output doesn't work.
Disabling explicitly will make sure that the manifest will get generated correctly.

avcodec/videotoolbox: add support for 10bit pixel format

this patch was originally posted on issue #7704 and was slightly
adjusted to check for the availability of the pixel format.

lavfi/fspp: Remove two unused macros.

avdevice/decklink_common: add support for DeckLink SDK 11

Fixes ticket #7789.

Signed-off-by: Marton Balint <cus@passwd.hu>

avdevice/decklink_common: properly check DoesSupportVideoMode result when trying VANC flag

Signed-off-by: Marton Balint <cus@passwd.hu>

avdevice/decklink_dec: set configs before listing formats

Format list can be input and profile dependant.

Signed-off-by: Marton Balint <cus@passwd.hu>

lavf/hls: Cleanup the applehttp

Cleanup the applehttp as demuxer name, when use the command :

ffmpeg -formats, get the confused information like:
"
 E hls             Apple HTTP Live Streaming
D  hls,applehttp   Apple HTTP Live Streaming
"
we don't use applehttp as the demuxer/muxer name usually, so
cleanup the applehttp and update the documents.

After the change, get the information from "ffmpeg -formats":
"
DE hls             Apple HTTP Live Streaming
"

Reviewed-by: Steven Liu <lq@onvideo.cn>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

lavf/rtsp.c: Fix stimeout option not applied on http tunnel

stimeout option is already used in tcp transport, since
http is based on tcp, pass the option to http for tunneling
case.

Reviewed-by: Steven Liu <lq@onvideo.cn>
Signed-off-by: Jun Li <junli1026@gmail.com>

Revert "lavf/rtsp.c: Fix stimeout option not applied on http tunnel"

This reverts commit 1ae8a1073ba8a3ceb9f51d9350785c27530aa469.

lavf/rtsp.c: Fix stimeout option not applied on http tunnel

stimeout option is already used in tcp transport, since
http is based on tcp, pass the option to http for tunneling
case.

Reviewed-by: Steven Liu <lq@onvideo.cn>
Signed-off-by: Jun Li <junli1026@gmail.com>

Revert "lavf/rtsp.c: Fix stimeout option not applied on http tunnel"

This reverts commit f502bd5432c9d7a34392ec3147bc5b5e3a868d9c.

lavf/rtsp.c: Fix stimeout option not applied on http tunnel

stimeout option is already used in tcp transport, since
http is based on tcp, pass the option to http for tunneling
case.

Reviewed-by: Steven Liu <lq@onvideo.cn>
Signed-off-by: Jun Li <junli1026@gmail.com>

avformat/mxfdec: use operational_pattern_ul instead of operational_pattern for metadata

This makes it more consistent with other metadata keys.

Signed-off-by: Marton Balint <cus@passwd.hu>

avcodec/cbs_av1: add support for Padding OBUs

Based on itut_t35 Matadata OBU parsing code.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/cbs_av1: add a function to strip trailing zeroes from a buffer size

Factor it out from cbs_av1_read_metadata_itut_t35()

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

avformat/hlsenc: flush packets before update split message

fix ticket: 7831

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

avcodec/truemotion2: Fix integer overflow in tm2_decode_blocks()

Fixes: signed integer overflow: 255 + 2147483634 cannot be represented in type 'int'
Fixes: 13472/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2_fuzzer-5712444142387200
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/imm4: flush prev_frame after seeking

avcodec: add LSCR decoder

Fixes #4711.

avformat/file: add seekable option to disallow seeking

Signed-off-by: Marton Balint <cus@passwd.hu>

avformat/mxfdec: export operational pattern UL as file metadata

Can be useful for API users as ffmpeg/libavformat can't properly support some
operational patterns.

Signed-off-by: Marton Balint <cus@passwd.hu>

configure: fix av1_frame_split bsf dependencies

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

avcodec: add an AV1 frame split bitstream filter

This will be needed by the eventual native AV1 decoder.

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

avcodec/agm: Check frame dimensions

Fixes: out of array access
Fixes: 14110/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AGM_fuzzer-5649184864075776
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec: add ADPCM AGM decoder

avcodec/agm: add support for non-dct coding

avcodec/agm: add support for higher compression

swscale/ppc: VSX-optimize non-full-chroma yuv2rgb_2

./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 -sws_flags fast_bilinear \
        -s 1200x720 -f null -vframes 100 -pix_fmt $i -nostats \
        -cpuflags 0 -v error -

32-bit mul, power8 only.

~2x speedup:

rgb24
  24431 UNITS in yuv2packed2,   16384 runs,      0 skips
  13783 UNITS in yuv2packed2,   16383 runs,      1 skips
bgr24
  24396 UNITS in yuv2packed2,   16384 runs,      0 skips
  14059 UNITS in yuv2packed2,   16384 runs,      0 skips
rgba
  26815 UNITS in yuv2packed2,   16383 runs,      1 skips
  12797 UNITS in yuv2packed2,   16383 runs,      1 skips
bgra
  27060 UNITS in yuv2packed2,   16384 runs,      0 skips
  13138 UNITS in yuv2packed2,   16384 runs,      0 skips
argb
  26998 UNITS in yuv2packed2,   16384 runs,      0 skips
  12728 UNITS in yuv2packed2,   16381 runs,      3 skips
bgra
  26651 UNITS in yuv2packed2,   16384 runs,      0 skips
  13124 UNITS in yuv2packed2,   16384 runs,      0 skips

This is a low speedup, but the x86 mmx version also gets only ~2x. The mmx version
is also heavily inaccurate, while the vsx version has high accuracy.

avcodec/pnm_parser: Factor out next/index compensation

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/pnm_parser: Factor next initialization out

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/pnm_parser: Support concatenated ASCII images

Fixes: Timeout (8sec -> 0.1sec)
Fixes: 13864/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PAM_fuzzer-5737860621139968
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avdevice/opengl_enc: fix build error using msvc compiler

libavformat/dashenc : Prevent writing manifest files multiple times