ffmpeg4 ffplay4: updated to 4.4.3

version 4.4.3:
- avformat/vividas: Check packet size
- configure: link to libatomic when it's present
- avcodec/dstdec: Check for overflow in build_filter()
- avformat/spdifdec: Use 64bit to compute bit rate
- avformat/rpl: Use 64bit for duration computation
- avformat/xwma: Use av_rescale() for duration computation
- avformat/sdsdec: Use av_rescale() to avoid intermediate overflow in duration calculation
- avformat/sbgdec: Check ts_int in genrate_intervals
- avformat/rmdec: check tag_size
- avformat/nutdec: Check fields
- avformat/flvdec: Use 64bit for sum_flv_tag_size
- avformat/jacosubdec: Fix overflow in get_shift()
- avformat/dxa: avoid bpc overflows
- avformat/cafdec: Check that nb_frasmes fits within 64bit
- avformat/asfdec_o: Limit packet offset
- avformat/ape: Check frames size
- avformat/icodec: Check nb_pal
- avformat/aiffdec: Use 64bit for block_duration use
- avformat/aiffdec: Check block_duration
- avformat/mxfdec: only probe max run in
- avformat/mxfdec: Check run_in is within 65536
- avcodec/mjpegdec: Check for unsupported bayer case
- avcodec/apedec: Fix integer overflow in filter_3800()
- avcodec/tta: Check 24bit scaling for overflow
- avcodec/mobiclip: Check quantizer for overflow
- avcodec/exr: Check preview psize
- avcodec/tiff: Fix loop detection
- libavformat/hls: Free keys
- avcodec/fmvc: Move frame allocation to a later stage
- avfilter/vf_showinfo: remove backspaces
- avcodec/speedhq: Check width
- avcodec/bink: disallow odd positioned scaled blocks
- avformat/asfdec_o: limit recursion depth in asf_read_unknown()
- doc/git-howto.texi: Document commit signing
- libavcodec/8bps: Check that line lengths fit within the buffer
- avcodec/midivid: Perform lzss_uncompress() before ff_reget_buffer()
- libavformat/iff: Check for overflow in body_end calculation
- avformat/avidec: Prevent entity expansion attacks
- avcodec/h263dec: Sanity check against minimal I/P frame size
- avcodec/hevcdec: Check s->ref in the md5 path similar to hwaccel
- avcodec/mpegaudiodec_template: use unsigned shift in handle_crc()
- avformat/subviewerdec: Make read_ts() more flexible
- avcodec/mjpegdec: bayer and rct are incompatible
- MAINTAINERS: Add ED25519 key for signing my commits in the future
- avcodec/hevc_filter: copy_CTB() only within width&height
- avcodec/tiff: Check tile_length and tile_width
- avcodec/mss4: Check image size with av_image_check_size2()
- avformat/flvdec: Check for EOF in index reading
- avformat/nutdec: Check get_packetheader() in mainheader
- avformat/asfdec_f: Use 64bit for packet start time
- avcodec/exr: Check x/ysize
- tools/target_dec_fuzzer: Adjust threshold for MMVIDEO
- avcodec/lagarith: Check dst/src in zero run code
- avcodec/h264dec: Skip late SEI
- avcodec/sbrdsp_fixed: Fix integer overflows in sbr_qmf_deint_neg_c()
- avfilter/vf_signature: Fix integer overflow in filter_frame()
- avformat/rtsp: break on unknown protocols
- avcodec/hevcdsp_template: stay within tables in sao_band_filter()
- avcodec/tiff: Check pixel format types for dng
- avcodec/qpeldsp: copy less for the mc0x cases
- avformat/aaxdec: Check for empty segments
- avcodec/ffv1dec: Limit golomb rice coded slices to width 8M
- avformat/iff: simplify duration calculation
- avcodec/wnv1: Check for width =1
- avcodec/ffv1dec_template: fix indention
- avformat/sctp: close socket on errors
- avcodec/aasc: Fix indention
- avcodec/qdrw: adjust max colors to array size
- avcodec/alacdsp: Make intermediates unsigned
- avformat/aiffdec: cleanup size handling for extreem cases
- avformat/matroskadec: avoid integer overflows in SAR computation
- avcodec/jpeglsdec: fix end check for xfrm
- avcodec/cdgraphics: limit scrolling to the line
- avformat/hls: Limit start_seq_no to one bit less
- avformat/aiffdec: avoid integer overflow in get_meta()
- avformat/ape: more bits in size for less overflows
- avformat/aviobuf: Check buf_size in ffio_ensure_seekback()
- avformat/bfi: Check offsets better
- avformat/asfdec_f: Check packet_frag_timestamp
- avcodec/texturedspenc: Fix indexing in color distribution determination
- avformat/act: Check ff_get_wav_header() for failure
- avcodec/libxavs2: Improve r redundancy in occured
- avformat/libzmq: Improve r redundancy in occured
- avfilter/vsrc_mandelbrot: Check for malloc failure
- avfilter/vf_frei0r: Copy to frame allocated according to frei0r requirements
- avfilter/video: Add ff_default_get_video_buffer2() to set specific alignment
- avformat/genh: Check sample rate
- configure: bump year
- lavc/videotoolbox: do not pass AVCodecContext to decoder output callback
- lavc/pthread_frame: always transfer stashed hwaccel state
- avcodec/arm/sbcenc: avoid callee preserved vfp registers
- avfilter/vf_scale: overwrite the width and height expressions with the original values
- lavc/pthread_frame: avoid leaving stale hwaccel state in worker threads
- configure: extend SDL check to accept all 2.x versions
- lavf/tls_mbedtls: add support for mbedtls version 3


(adam)