Log message:
multimedia/ffmpeg4: fix USE_LANGUAGES

multimedia/ffmpeg4 does not need -std=gnu99, only ffplay4 does.

Since mk/compiler.mk is protected by a multiple-inclusion guard, any
later assignment to USE_LANGUAGES has no effect except being confusing.
The additional languages show up in "bmake show-var" but at the point of
evaluation, they had not been set yet.

This can be detected by several pkgsrc tools:

pkglint says:

WARN: ../../multimedia/ffmpeg4/Makefile.common:14: Modifying
  USE_LANGUAGES after including ../../mk/compiler.mk has no effect.

Adding a manual check to mk/compiler.mk results in:

bmake[1]: "mk/compiler.mk" line 273: warning:
  For multimedia/ffmpeg4, only languages "c" are used,
  the others in "c99" were defined too late.

Making the variable USE_LANGUAGES read-only after including
mk/compiler.mk results in:

bmake[1]: "multimedia/ffmpeg4/Makefile.common" line 14:
  Read-only USE_LANGUAGES cannot be set

(The latter two checks are not yet in the official pkgsrc tree.)

Log message:
ffmpeg4/ffplay4: updated to 4.2.3

version 4.2.3
- avcodec/pnmdec: Use unsigned for maxval rescaling
- avcodec/ivi: Clear got_p_frame before decoding a new frame using it
- avcodec/dsddec: Check channels
- avcodec/xvididct: Fix integer overflow in idct_row()
- avcodec/wmalosslessdec: Fix integer overflows in revert_inter_ch_decorr()
- avcodec/cbs_jpeg: Fix infinite loop in cbs_jpeg_split_fragment()
- avformat/mpegenc: Fix integer overflow with AV_NOPTS_VALUE
- avformat/swfenc: Fix integer overflow in frame rate handling
- avformat/aadec: Check toc_size to contain the minimum to demuxer uses
- avcodec/cbs_h265_syntax_template: Limit num_long_term_pics more strictly
- ffplay: set stream_index to -1 earlier to prevent segfault
- avformat/mov: Free temp buffer upon negative sample_size error.
- avformat/matroskadec: Improve forward compability
- avformat/matroskadec: Don't discard valid packets
- avformat/matroskaenc: Don't segfault when seekability changes
- avformat/utils: Fix memleaks
- avformat/utils: Fix memleaks in avformat_open_input()
- avfilter/vf_dedot: Fix leak of AVFrame if making it writable fails
- avfilter/vf_paletteuse: Fix potential double-free of AVFrame
- avformat/mov: Don't leak MOVFragmentStreamInfo on error
- avformat/mov: Free encryption data on error
- fftools/ffmpeg: Free swresample dictionary during cleanup
- avcodec/mediacodec_wrapper: fix {input,output}_buffers global reference leak
- avformat/webm_chunk: Close IO if writing header fails
- avcodec/cavsdsp: Fix undefined left shifts of negative numbers
- avcodec/ra144enc: Fix invalid left shift of negative number
- avcodec/adxenc: Avoid undefined left shift of negative numbers
- avcodec/adpcm: Fix undefined left shifts of negative numbers
- avcodec/proresenc_anatoliy: Fix invalid left shift of negative number
- avformat/aviobuf: Honor avio_open[2] documentation
- avcodec/cinepakenc: Fix invalid shifts
- avfilter/vf_xbr: Fix left shift of negative number
- avfilter/vf_hqx: Fix undefined left shifts of negative numbers
- avcodec/jpeg2000dwt: Fix undefined shifts of negative numbers
- avcodec/ituh263dec: Fix undefined left shift of negative number
- avcodec/dnxhdenc: Fix undefined left shifts of negative numbers
- swscale/utils: Fix invalid left shifts of negative numbers
- swscale/x86/swscale: Fix undefined left shifts of negative numbers
- fftools/ffmpeg_opt: Fix signed integer overflow
- avcodec/exr: Fix undefined left shifts of negative numbers
- avformat/movenc: Fix undefined shift
- avcodec/pcm: Fix undefined shifts
- avcodec/wavpackenc: Fix undefined shifts
- avutil/encryption_info: Don't pass NULL to memcpy
- avcodec/ac3enc: Fix memleak
- avcodec/ac3enc: Fix invalid shift
- avcodec/g723_1dec: Fix invalid shift
- avcodec/tdsc: Fix undefined shifts
- avcodec/ttaenc: Fix undefined shift
- avformat/avidec: Fix memleak with embedded GAB2 subtitles
- avformat/matroskadec: Don't discard the upper 32bits of TrackNumber
- dump_extradata: Insert extradata even for small packets
- avformat/segafilmenc: Fix undefined left shift of 1 by 31 places
- avformat/wtvdec: Fix memleak when reading header fails
- avformat/dashenc: Fix leak of AVFormatContext on error
- avformat/fitsdec: Fix potential leak of string in AVBPrint
- avformat/matroskadec: Sanitize SeekHead entries
- avformat/matroskaenc: Fix memleak upon encountering bogus chapter
- avformat/matroskaenc: Make ebml_num_size() more robust
- avformat/oggenc: Don't free AVStream's priv_data, fix memleak
- avformat/utils: Fix memleak when decoding subtitle in find_stream_info
- fftools/ffmpeg_opt: Check attachment filesize
- avformat/mpeg: Don't use unintialized value
- avformat/webmdashenc: Check codec types
- avformat/webmdashenc: Fix memleak upon realloc failure
- avformat/subtitles: Don't increment packet counter prematurely
- avformat/bethsoftvid: Fix potential memleak upon reallocation failure
- avformat/smoothstreaming: Fix memleaks on errors
- avformat/matroskaenc: Check BlockAdditional size before use
- avformat/matroskaenc: Check functions that can fail
- avformat/matroskaenc: Check for reformatting errors
- avformat/matroskadec: Check before allocations
- avfilter/vf_unsharp: Don't dereference NULL
- avcodec/zmbvenc: Correct offset in buffer
- avcodec/cbs_h2645: Fix potential out-of-bounds array access
- avformat/mov: Don't allow negative sample sizes.
- mpeg4videoenc: Don't crash with -fsanitize=bounds
- avformat/mpegts: Shuffle avio_seek
- avcodec/binkaudio: Fix 2Ghz sample_rate
- avcodec/adpcm: Fix integer overflow in ADPCM THP
- avcodec/ralf: Check num_blocks before use
- avcodec/iff: Test video_size being non zero
- avcodec/utvideodec: Fix integer overflow in decode_plane()
- avcodec/ttadsp: Fix several integer overflows in tta_filter_process_c()
- avcodec/ralf: Fix integer overflow in decode_block()
- avcodec/nuv: widen buf_size type
- avcodec/iff: Fix several integer overflows
- avcodec/g729postfilter: Clip gain before scaling with AGC_FAC1
- avcodec/alac: Fix integer overflow with 24/20bps samples
- avcodec/dstdec: Check sample rate
- avformat/thp: Require a video stream
- avformat/mpeg: Decrease score by 1 for files with very little valid data
- avcodec/pngdec: Check length in fdAT
- avcodec/g2meet: Check tile_width in epic_jb_decode_tile()
- avcodec/hapdec: Check tex_size more strictly and before using it
- avcodec/vp9dsp_template: Fix integer overflows in idct32_1d()
- avcodec/alacdsp: Fix invalid shift in append_extra_bits()
- libavcodec/wmalosslessdec: prevent sum of positive numbers from becoming negative
- avcodec/dstdec: Fix integer overflow in read_table()
- avcodec/txd: Check for input size against the header size.
- avcodec/svq1dec: Check that there is data left after the header
- avcodec/cbs_h265_syntax_template: Check num_negative/positive_pics when \ 
inter_ref_pic_set_prediction_flag is set
- avcodec/intrax8: Check for end of bitstream in ff_intrax8_decode_picture()
- avcodec/hevc_mp4toannexb_bsf: Check nalu_size
- avcodec/iff: Check length before memcpy() in decode_deep_rle32()
- avcodec/iff: Fix invalid pointer intermediates in decode_deep_rle32()
- avcodec/pngdec: Pass ret from decode_iccp_chunk()
- avcodec/rv40dsp: Fix integer overflows in rv40_weight_func_*()
- avcodec/ac3dec_fixed: Fix several invalid left shifts in scale_coefs()
- avcodec/flac_parser: Do not lose header count in find_headers_search()
- avcodec/audiodsp: Fix integer overflow in scalarproduct_int16_c()
- avcodec/cbs_jpeg_syntax_template: Check array index in huffman_table()
- avcodec/cbs_jpeg_syntax_template: Check table index before use in dht()
- avformat/oggdec: Check for EOF after page header
- swscale/yuv2rgb: Fix vertical dither offset with slices
- avcodec/dpcm: clip exponent into supported range in XAN DPCM
- avcodec/flacdsp_template: Fix invalid shifts in decorrelate
- avcodec/xvididct: Fix integer overflow in MULT()
- avcodec/ffwavesynth: Correct undefined overflow of PINK_UNIT
- avcodec/cbs_h264_syntax_template: fix off by 1 error with slice_group_change_cycle
- swscale/output: Fix integer overflow in yuv2rgb_write_full() with out of range \ 
input
- swscale/output: Fix integer overflow in alpha computation in yuv2gbrp16_full_X_c()
- libavformat/amr.c: Check return value from avio_read()
- libavformat/mov.c: Free aes_decrypt to avoid leaking memory
- libavformat/oggdec.c: Check return value from avio_read()
- avformat/asfdec_f: Fix overflow check in get_tag()
- avformat/nsvdec: Fix memleaks on errors while reading the header
- avcodec/ffwavesynth: Fix integer overflow in computation of ddphi
- avcodec/cbs_jpeg: Check length for SOS
- avcodec/adpcm: Fix invalid shift in AV_CODEC_ID_ADPCM_PSX
- avcodec/mpeg12dec: Fix invalid shift in mpeg2_fast_decode_block_intra()
- avcodec/cbs_h2645: Treat slices without data as invalid
- avcodec/cbs_h2645: Remove dead code to delete trailing zeroes
- avcodec/cbs_av1_syntax_template: Set seen_frame_header only after successfull \ 
uncompressed_header()
- avcodec/mpegaudioenc_template: fix invalid shift of sample
- avcodec/motion_est_template: Fix invalid shifts in no_sub_motion_search()
- libavformat/avienc: Check bits per sample for PAL8
- avformat/mpegts: Improve the position determination for \ 
avpriv_mpegts_parse_packet()
- avcodec/magicyuv: Check that there are enough lines for interlacing to be possible
- avformat/mvdec: Check stream numbers
- avcodec/pcm: Fix invalid shift in AV_CODEC_ID_PCM_LXF
- avcodec/qdm2: Check fft_coefs_index
- avformat/utils: Fix integer overflow with complex time bases in \ 
avformat_find_stream_info()
- avformat/avidec: Avoid integer overflow in NI switch check
- fftools/ffmpeg: Fix integer overflow in duration computation in seek_to_start()
- avfilter/vf_aspect: Fix integer overflow in compute_dar()
- avcodec/apedec: Fix invalid shift with 24 bps
- avformat/utils: Fix undefined behavior in ff_configure_buffers_for_index()
- avcodec/dpcm: Fix integer overflow in AV_CODEC_ID_GREMLIN_DPCM
- avcodec/wmalosslessdec: Fix integer overflow with sliding in padding bits
- avcodec/wmalosslessdec: Fix loop in revert_acfilter()
- avcodec/agm: YUV420 without DCT needs even dimensions
- avcodec/agm: Test remaining data in decode_raw_intra_rgb()
- avcodec/lagarith: Sanity check scale
- avcodec/apedec: Fix integer overflows in predictor_decode_mono_3950()
- avcodec/ralf: Fix integer overflow in apply_lpc()
- avcodec/dca_lbr: Fix some error codes and error passing
- avcodec/wmavoice: Fix rounding and integer anomalies in calc_input_response()
- avcodec/wmavoice: sanity check block_align
- avcodec/pcm: Fix invalid shift in pcm_decode_frame for LXF
- avcodec/snappy: Sanity check bytestream2_get_levarint()
- avcodec/mlpdsp: Fix a invalid shift in ff_mlp_rematrix_channel()
- avcodec/avdct: Clear IDCTDSPContext context
- avcodec/x86/diracdsp: Fix high bits on Windows x86_64
- tests/fate/lavf-video.mak: fix fate-lavf-gif dependencies
- avformat/mov: Check STCO location
- avcodec/wmalosslessdec: Fix multiple integer overflows
- avcodec/apedec: Fix undefined integer overflow in decode_array_0000()
- avcodec/smacker: Check space before decoding type
- avcodec/rawdec: Use linesize in b64a
- avcodec/iff: Over-allocate ham_palbuf for HAM6 IFF-PBM
- avcodec/x86/diracdsp: Fix incorrect src addressing in dequant_subband_32()
- avfilter/vf_find_rect: Remove assert
- avfilter/vf_find_rect: Increase worst case score
- swscale/input: Fix several invalid shifts related to rgb2yuv constants
- swscale/output: Fix several invalid shifts in yuv2rgb_full_1_c_template()
- swscale/swscale: Fix several invalid shifts related to vChrDrop
- avcodec/hevc_mp4toannexb_bsf: check that nalu size doesnt overflow
- avcodec/hevc_mp4toannexb_bsf: Avoid NULL memcpy()
- avcodec/cbs_av1: Check leb128 values read
- avcodec/wmalosslessdec: move channel check up
- avcodec/cbs_h2645: Skip all 0 NAL units
- avcodec/adpcm: Fix overflow in FFABS() IMA_EA_EACS
- avcodec/alac: Fix integer overflow in LPC coefficient adaption
- avcodec/g729postfilter: Optimize out overflowing multiplication from \ 
apply_tilt_comp()
- avcodec/vc1dec: Check field_mode for sprites
- avcodec/vc1dec: Limit bits by the actual bitstream size
- avcodec/vmdaudio: Check block_align more
- configure: bump year
- avcodec/pgssubdec: Free subtitle on error
- avcodec/nvenc: use framerate if available
- avcodec/cbs_h265: fix writing extension_data bits
- avcodec/nvenc: offset dts to account for b-frame reordering
- Revert "avformat/rtp: Pass sources and block filter addresses via sdp \ 
file for rtp"
- avformat/matroskadec: Fix default value of BlockAddID
- avformat/dashdec: Don't allocate and leak strings that are never used
- avformat/matroskaenc: Write level 1 elements in one go
- avformat/rtp: Pass sources and block filter addresses via sdp file for rtp
- avformat/bintext: avoid division by zero

Log message:
*: recursive bump for libffi

Log message:
ffmpeg4/ffplay4: updated to 4.1.1

version 4.1.1:
- avformat/mov: validate chunk_count vs stsc_data
- avformat/mov: require tfhd to begin parsing trun
- avcodec/pgssubdec: Check for duplicate display segments
- avformat/rtsp: Check number of streams in sdp_parse_line()
- avformat/rtsp: Clear reply in every iteration in ff_rtsp_connect()
- avcodec/rasc: Move ff_get_buffer() after frame checks
- avcodec/rasc: Check uncompressed dlta size
- avcodec/fic: Check that there is input left in fic_decode_block()
- avcodec/ilbcdec: Fix undefined integer overflow lsf2poly()
- avcodec/ilbcdec: Fix integer overflow in construct_vector()
- avcodec/prosumer: Error out if decompress() stops reading data
- avcodec/tiff: Check for 12bit gray fax
- avutil/imgutils: Optimize memset_bytes() by using av_memcpy_backptr()
- avutil/mem: Optimize fill32() by unrolling and using 64bit
- configure: bump year
- avcodec/tests/rangecoder: initialize array to avoid valgrind warning
- avcodec/gdv: Optimize and factorize scaling loops
- avcodec/h264_slice: Fix integer overflow in implicit_weight_table()
- avcodec/exr: set layer_match in all branches
- avcodec/exr: Check for duplicate channel index
- avfilter/vf_tonemap_opencl: Make static tables const
- doc/indevs: fix upto typo
- avcodec/4xm: Fix returned error codes
- avformat/libopenmpt: Fix successfull typo
- avcodec/v4l2_m2m: fix cant typo
- avcodec/mjpegbdec: Fix some misplaced {} and spaces
- avformat/wvdec: detect and error out on WavPack DSD files
- avcodec/mips: Fix failed case: hevc-conformance-AMP_A_Samsung_* when enable msa
- avcodec/fic: Fail on invalid slice size/off
- avcodec/ilbcdec: fix integer overflow in energy
- postproc/postprocess_template: remove FF_REG_sp from clobber list
- postproc/postprocess_template: Avoid using %4 for the threshold compare
- libavformat/mov: Fix NULL-dereference read for some encrypted content.
- avcodec/rpza: Check that there is enough data for all the blocks
- avcodec/rpza: Move frame allocation to a later point
- avcodec/avcodec: Document the data type for AV_PKT_DATA_MPEGTS_STREAM_ID
- avformat/mpegts: Fix side data type for stream id
- tests/fate/filter-video: increase fuzz for fate-filter-refcmp-psnr-rgb
- avcodec/mjpegdec: Fix indention of ljpeg_decode_yuv_scan()
- lavf/id3v2: fail read_apic on EOF reading mimetype
- avcodec/rasc: Check that the number of moves is less than or equal the number \ 
of pixels
- avformat/nutenc: Document trailer index assert better
- lavf/mov: ensure only one tkhd per trak
- avcodec/clearvideo: Check remaining input bits in P macro block loop
- avcodec/rasc: Check input space before reading chunk
- avcodec/dxv: Check that there is enough data to decompress
- avcodec/ppc/hevcdsp: Fix build failures with powerpc-linux-gnu-gcc-4.8 with \ 
--disable-optimizations
- avcodec/msvideo1: Check for too small dimensions
- avcodec/wmv2dec: Skip I frame if its smaller than 1/8 of the minimal size
- avcodec/msmpeg4dec: Skip frame if its smaller than 1/8 of the minimal size
- avcodec/truemotion2rt: Fix rounding in input size check
- avcodec/diracdec: Check component quant
- avcodec/tiff: Limit filtering to decoded data
- avcodec/truemotion2: fix integer overflows in tm2_low_chroma()
- avcodec/pngdec: Check compression method
- fftools/ffmpeg: Repair reinit_filter feature
- avcodec/shorten: Fix integer overflow with offset
- avcodec/imm4: Use ff_set_dimensions()
- h264_redundant_pps: Fix logging context
- avfilter/af_asetnsamples: fix last frame props
- cbs_av1: Fix reading of overlong uvlc codes
- avcodec/cbs_av1: fix parsing delta_frame_id_minus1
- avfilter/vf_overlay: fix filtering with negative y
- avformat/movenc: get number of written bytes from bitstream writer
- avformat/movenc: fix size calculation in mov_write_eac3_tag()
- avfilter/vf_overlay: fix crash with negative y
- avcodec/mpeg_er: fix clearing chroma blocks for 422 and 444
- avfilter/af_afade: fix duration maximum
- avfilter/vf_fade: fix start/duration max value
- avcodec/cbs_av1: fix parsing signed integer values
- avcodec/cbs_av1: fix storage size for segmentation_params feature_value fields
- configure: Add missing xlib dependency for VAAPI X11 code
- avcodec/hevcdec: fix non-ref frame judgement

Log message:
ffmpeg, ffplay - re-disable optimizations, pending more discussion

Log message:
ffplay4, ffmpeg4: don't disable optimizations.

these are runtime-detected as far as I can see (for multiple archs), so
I don't think there's any harm in enabling them.

bump PKGREVISION.

Log message:
Recursive revbump from multimedia/libva

Log message:
ffmpeg4: updated to 4.0.1

version 4.0.1:
- avcodec/aacdec_fixed: Fix undefined integer overflow in \ 
apply_independent_coupling_fixed()
- avcodec/dirac_dwt_template: Fix undefined behavior in interleave()
- avutil/common: Fix undefined behavior in av_clip_uintp2_c()
- fftools/ffmpeg: Fallback to duration if sample rate is unavailable
- avformat/mov: Only set pkt->duration to non negative values
- avcodec/mpeg4videodec: Clear bits_per_raw_sample if it has originated from a \ 
previous instance
- avformat/movenc: fix recognization of cover image streams
- avformat/movenc: properly handle cover image codecs
- avcodec/h264_slice: Fix overflow in recovery_frame computation
- avcodec/h264_ps: Move MAX_LOG2_MAX_FRAME_NUM to header so it can be used in \ 
h264_sei
- avcodec/h264_mc_template: Only prefetch motion if the list is used.
- avcodec/xwddec: Use ff_set_dimensions()
- avcodec/wavpack: Fix overflow in adding tail
- avcodec/shorten: Fix multiple integer overflows
- avcodec/shorten: Fix undefined shift in fix_bitshift()
- avcodec/shorten: Fix a negative left shift in shorten_decode_frame()
- avcodec/shorten: Sanity check nmeans
- avcodec/shorten: Check non COMM chunk len before skip in decode_aiff_header()
- avcodec/mjpegdec: Fix integer overflow in ljpeg_decode_rgb_scan()
- avcodec/truemotion2: Fix overflow in tm2_apply_deltas()
- avcodec/opus_silk: Change silk_lsf2lpc() slightly toward silk/NLSF2A.c
- avcodec/amrwbdec: Fix division by 0 in find_hb_gain()
- avcodec/h263dec: Reinitialize idct context if it has not been setup for the \ 
active profile
- avcodec/idctdsp: Clear idct/idct_add for studio profile
- avformat/mov: replace a value error by clipping into valid range in mov_read_stsc()
- avformat/bintext: Reduce detection for random .bin files as it more likely is \ 
not a multimedia related file
- avformat/mov: Break out early if chunk_count is 0 in mov_build_index()
- avcodec/fic: Avoid some magic numbers related to cursors
- avcodec/mpeg4video: Detect reference studio streams as studio streams
- avcodec/mpeg4videodec: Do not corrupt bits_per_raw_sample
- avcodec/mpeg4videode: Eliminate out of loop VOP startcode reading for studio \ 
profile
- avcodec/g2meet: ask for sample with overflowing RGB
- avcodec/idctdsp: Transmit studio_profile to init instead of using \ 
AVCodecContext profile
- avcodec/ac3dec: Check that the number of channels with dependant streams is valid
- avcodec/ac3dec: Fix null pointer dereference in ac3_decode_frame()
- avcodec/aacdec_fixed: use 64bit to avoid overflow in rounding in \ 
apply_dependent_coupling_fixed()
- oavcodec/aacpsdsp_template: Use unsigned for hs0X to prevent undefined behavior
- avcodec/g723_1dec: Clip bits2 in both directions
- avcodec/mpeg4videoenc: Use 64 bit for times in mpeg4_encode_gop_header()
- avcodec/mlpdec: Only change noise_type if the related fields are valid
- indeo4: Decode all or nothing of a band header.
- avcodec/ac3dec: Use frame_size if superframe_size is 0
- avformat/mov: Only fail for STCO/STSC contradictions if both exist
- avcodec/dirac_dwt: Fix integer overflow in COMPOSE_DD97iH0 / COMPOSE_DD137iL0
- avcodec/fic: Check available input space for cursor
- avcodec/mpeg4videodec: Check bps (VOL header) before VOP for studio profile
- avcodec/g2meet: Check RGB upper limit
- avcodec/jpeg2000dec: Fix undefined shift in the \ 
jpeg2000_decode_packets_po_iteration() CPRL case
- avcodec/jpeg2000dec: Skip init for component in CPRL if nothing is to be done
- avcodec/g2meet: Change order of operations to avoid undefined behavior
- avcodec/flac_parser: Fix infinite loop
- avcodec/mpeg4videodec: Split decode_studio_vol_header() out of \ 
decode_studiovisualobject()
- avcodec/mpeg4videodec: Move decode_studiovisualobject() parsing in the branch \ 
for visual object parsing
- avcodec/mpeg4video_parser: Avoid litteral 0x1B6, use named constant instead
- avcodec/mpeg4video_parser: Fix incorrect spliting of MPEG-4 studio frames
- avformat/m4vdec: Use the same constant names as libavcodec
- avformat/m4vdec: Fix detection of raw MPEG-4 ES Studio
- avcodec/wavpack: Fix integer overflow in DEC_MED() / INC_MED()
- avcodec/wavpack: Fix integer overflow in wv_unpack_stereo()
- avcodec/error_resilience: Fix integer overflow in filter181()
- avcodec/h263dec: Check slice_ret in mspeg4 slice loop
- avcodec/elsdec: Fix memleaks
- avcodec/vc1_block: simplify ac_val computation
- avcodec/ffv1enc: Check that the crc + version combination is supported
- configure: The eac3_core bitstream filter needs the ac3 parser.
- configure: fix arm inline asm checks
- lavf/libssh: translate a read of 0 to EOF
- ffprobe: fix SEGV when new streams are added
- avformat/mpegts: fix incorrect indentation
- avformat/mpegts: initialize section_buf to fix valgrind test failure
- avformat/mpegts: reindent after last change
- avformat/mpegts: parse sections with multiple tables
- avformat/mpegts: clean up whitespace
- avformat/mpegts: use MAX_SECTION_SIZE instead of hardcoded value
- avformat/mpegts: skip non-PMT tids earlier
- avcodec/mediacodecdec: add workaround for buggy amlogic mpeg2 decoder
- avcodec/mediacodecdec: wait on first frame after input buffers are full
- avcodec/mediacodecdec: restructure mediacodec_receive_frame
- avcodec/mediacodec_wrapper: add helper to fetch SDK_INT
- avcodec/mediacodecdec: refactor pts handling
- avcodec/mediacodecdec: use AV_TIME_BASE_Q
- avcodec/mediacodecdec: clarify delay_flush specific code
- avcodec/videotoolbox: fix decoding of some HEVC videos
- avcodec/hevc: remove videotoolbox hack
- avcodec/videotoolbox: split h264/hevc callbacks
- avcodec/videotoolbox: cleanups
- avcodec/videotoolbox: fix kVTCouldNotFindVideoDecoderErr trying to decode HEVC \ 
on iOS
- avcodec/videotoolbox: improve logging of decoder errors
- avcodec/xwddec: fix palette alpha
- avformat/webm_chunk: always use a static buffer for get_chunk_filename
- configure: fix configure check for lilv-0
- avcodec/nvdec_hevc: fix scaling lists
- avcodec/hevcdec: make ff_hevc_frame_nb_refs take a const pointer
- lavf/bluray: translate a read of 0 to EOF
- lavf/dashenc: don't call flush_init_segment before avformat_write_header
- avdevice/decklink_dec: unref packets on avpacket_queue_put error
- avcodec/hnm4video: fix palette alpha
- avcodec/anm: fix palette alpha
- avformat/qtpalette: parse color table according to the QuickTime file format specs
- ffplay: Fix realloc_texture when input texture is NULL.
- hwcontext_vaapi: Fix compilation with libva versions < 1.4.0
- lavf/qsv: clone the frame which may be managed by framework
- lavf: make overlay_qsv work based on framesync
- avformat/segafilm - revert keyframe detection
- avformat/utils: refactor upstream_stream_timings
- avformat/utils: ignore outlier durations on subtitle/data streams as well

Log message:
ffmpeg4/ffplay4: added version 4.0

version 4.0:
- Bitstream filters for editing metadata in H.264, HEVC and MPEG-2 streams
- Dropped support for OpenJPEG versions 2.0 and below. Using OpenJPEG now
  requires 2.1 (or later) and pkg-config.
- VDA dropped (use VideoToolbox instead)
- MagicYUV encoder
- Raw AMR-NB and AMR-WB demuxers
- TiVo ty/ty+ demuxer
- Intel QSV-accelerated MJPEG encoding
- PCE support for extended channel layouts in the AAC encoder
- native aptX and aptX HD encoder and decoder
- Raw aptX and aptX HD muxer and demuxer
- NVIDIA NVDEC-accelerated H.264, HEVC, MJPEG, MPEG-1/2/4, VC1, VP8/9 hwaccel \ 
decoding
- Intel QSV-accelerated overlay filter
- mcompand audio filter
- acontrast audio filter
- OpenCL overlay filter
- video mix filter
- video normalize filter
- audio lv2 wrapper filter
- VAAPI MJPEG and VP8 decoding
- AMD AMF H.264 and HEVC encoders
- video fillborders filter
- video setrange filter
- nsp demuxer
- support LibreSSL (via libtls)
- AVX-512/ZMM support added
- Dropped support for building for Windows XP. The minimum supported Windows
  version is Windows Vista.
- deconvolve video filter
- entropy video filter
- hilbert audio filter source
- aiir audio filter
- aiff: add support for CD-ROM XA ADPCM
- Removed the ffserver program
- Removed the ffmenc and ffmdec muxer and demuxer
- VideoToolbox HEVC encoder and hwaccel
- VAAPI-accelerated ProcAmp (color balance), denoise and sharpness filters
- Add android_camera indev
- codec2 en/decoding via libcodec2
- muxer/demuxer for raw codec2 files and .c2 files
- Moved nvidia codec headers into an external repository.
  They can be found at http://git.videolan.org/?p=ffmpeg/nv-codec-headers.git
- native SBC encoder and decoder
- drmeter audio filter
- hapqa_extract bitstream filter
- filter_units bitstream filter
- AV1 Support through libaom
- E-AC-3 dependent frames support
- bitstream filter for extracting E-AC-3 core
- Haivision SRT protocol via libsrt
- segafilm muxer
- vfrdet filter