Log Message:
ffmpeg3,ffplay3: updated to 3.4.8

version 3.4.8:
 avcodec/hevc_mp4toannexb_bsf: Check NAL size against available input
 lavf/webm_chunk: Fix NULL dereference
 avcodec/ttaenc: Fix undefined shift
 fftools/ffmpeg: Free swresample dictionary during cleanup
 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
 avcodec/exr: Fix undefined left shifts of negative numbers
 avformat/movenc: Fix undefined shift
 avcodec/pcm: Fix undefined shifts
 avcodec/wavpackenc: Fix undefined shifts
 avcodec/ac3enc: Fix invalid shift
 avcodec/tdsc: Fix undefined shifts
 fftools/ffmpeg_opt: Fix signed integer overflow
 avformat/mov: Fix reel_name size check
 avformat/mov: Fix memleak upon encountering repeating tags
 avformat/matroskaenc: Don't use NULL for %s format string
 avformat/webvttdec: Fix memleak upon read header failure
 avformat/vplayerdec: Fix memleak upon read header failure
 avformat/tedcaptionsdec: Fix memleak upon read header failure
 avformat/subviewerdec: Fix memleak upon read header failure
 avformat/subviewer1dec: Fix memleak upon read header failure
 avformat/stldec: Fix memleak upon read header failure
 avformat/srtdec: Fix memleak upon read header failure
 avformat/sccdec: Fix memleak upon read header failure
 avformat/samidec: Fix memleak upon read header failure
 avformat/pjsdec: Fix memleak upon read header failure
 avformat/mpsubdec: Fix memleak upon read header failure
 avformat/mpl2dec: Fix memleak upon read header failure
 avformat/microdvddec: Fix memleak upon read header failure
 avformat/lrcdec: Fix memleak upon read header failure
 avformat/jacosubdec: Fix memleak upon read header failure
 avformat/assdec: Fix memleak upon read header failure
 avformat/aqtitledec: Fix memleak upon read header failure
 avformat/mov: Fix memleaks upon read_header failure
 avformat/omadec: Fix memleaks upon read_header failure
 avformat/matroskadec: Fix memleaks in WebM DASH manifest demuxer
 avformat/matroskadec: Use right number of tracks
 avformat/matroskadec: Fix handling gigantic durations
 avformat/aviobuf: Don't check for overflow after it happened
 avformat/matroskaenc: Fix memleak upon encountering bogus chapter
 fftools/ffmpeg_opt: Check attachment filesize
 avformat/webmdashenc: Check codec types
 avformat/avidec: Fix memleak with embedded GAB2 subtitles
 avformat/webmdashenc: Fix memleak upon realloc failure
 avformat/matroskadec: Don't discard the upper 32bits of TrackNumber
 avformat/hnm: Check for extradata allocation 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/utils: Fix memleaks in avformat_open_input()
 avcodec/cavsdsp: Fix undefined left shifts of negative numbers
 avformat/hevc: Fix potential leak in case of ff_hevc_annexb2mp4_buf failure
 avformat/matroskaenc: Check for reformatting errors
 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/wtvdec: Fix memleak when reading header fails
 avformat/fitsdec: Fix potential leak of string in AVBPrint
 avformat/mov: fix memleaks
 libavformat/mov: Fix memleaks when demuxing DV audio
 avcodec/bitstream: Don't check for undefined behaviour after it happened
 avcodec/dstdec: Replace AC overread check by sample rate check
 avformat/utils: reorder duration computation to avoid overflow
 avcodec/pngdec: Check for fctl after idat
 avformat/hls: Pass a copy of the URL for probing
 avformat/hls: check segment duration value of EXTINF
 avutil/common: Fix integer overflow in av_ceil_log2_c()
 avcodec/wmalosslessdec: fix overflow with pred in revert_cdlms
 avformat/mvdec: Fix integer overflow with billions of channels
 avformat/microdvddec: skip malformed lines without frame number.
 avformat/mxfdec: free duplicated utf16 strings
 avformat/4xm: Check that a video stream was created before returning packets for it
 avcodec/ffwavesynth: Avoid undefined operation on ts overflow
 avcodec/mpeg4videodec: Fix 2 integer overflows in get_amv()
 avcodec/lossless_audiodsp: Fix undefined overflows in \ 
scalarproduct_and_madd_int16_c()
 avcodec/sonic: Fix several integer overflows
 avcodec/pixlet: Fix log(0) check
 avcodec/iff: Fix off by x error
 avcodec/wmalosslessdec: Check block_align maximum
 avcodec/loco: Fix signed integer overflow in loco_get_rice()
 avformat/thp: Check fps
 avformat/mpl2dec: Fix integer overflow with duration
 avcodec/mpeg12dec: remove outdated comments
 avcodec/snowdec: Avoid integer overflow with huge qlog
 avformat/mov: Check if DTS is AV_NOPTS_VALUE in mov_find_next_sample().
 avcodec/mpeg12dec: Fix got_output
 avformat/4xm: Cleanup on GET_LIST_HEADER() failure
 avcodec/lzf: Consider the needed size in reallocation
 avformat/mlvdec: fail reading a packet with 0 streams
 avformat/thp: Check compcount
 avcodec/adpcm: XA: Check shift similar to filter
 avcodec/huffyuvdec: Test vertical coordinate more often
 avcodec/hq_hqa: Check info size
 avcodec/wmalosslessdec: Fix integer overflow in mclms_predict()
 avcodec/vp9dsp_template: Fix integer overflow(s) in iadst16_1d()
 avcodec/h264dec: Disable forced small_padding on flag2 fast
 avformat/oggparsevorbis: Error out on double init of vp
 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()
 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
 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/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/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()
 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
 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/adpcm: Fix invalid shift in AV_CODEC_ID_ADPCM_PSX
 avcodec/mpeg12dec: Fix invalid shift in mpeg2_fast_decode_block_intra()
 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/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
 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/wmalosslessdec: move channel check up
 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/ffwavesynth: Fix undefined overflow in wavesynth_synth_sample()
 avcodec/cook: Use 3 stage VLC decoding for channel_coupling
 avcodec/wmalosslessdec: Fixes undefined overflow in dequantization in \ 
decode_subframe()
 avcodec/sonic: Check e in get_symbol()
 avcodec/twinvqdec: Correct overflow in block align check
 avcodec/vc1dec: Fix "return -1" cases
 avcodec/vc1dec: Free sprite_output_frame on error
 avcodec/wmadec: Keep track of exponent initialization per channel
 avcodec/iff: Check that video_size is large enough for the read parameters
 avcodec/adpcm: Clip predictor for APC
 avcodec/targa: Check colors vs. available space
 avcodec/dstdec: Use get_ur_golomb_jpegls()
 avcodec/wmavoice: Check remaining input in parse_packet_header()
 avcodec/wmalosslessdec: Fix 2 overflows in mclms
 avcodec/wmaprodec: Fixes integer overflow with 32bit samples
 avcodec/adpcm: Fix invalid shift in xa_decode()
 avcodec/wmalosslessdec: Fix several integer issues
 avcodec/wmalosslessdec: Check that padding bits is not more than sample bits
 avcodec/iff: Skip overflowing runs in decode_delta_d()
 avcodec/pnm: Check that the header is not truncated
 avcodec/mp3_header_decompress_bsf: Check sample_rate_index
 avformat/rmdec: Initialize and sanity check offset in ivr_read_header()
 avcodec/apedec: Fix 2 integer overflows
 avcodec/wmaprodec: Set packet_loss when we error out on a sanity check
 avcodec/wmaprodec: Check offset
 avcodec/truemotion2: Fix 2 integer overflows in tm2_low_res_block()
 avcodec/wmaprodec: Check if the channel sum of all internal contexts match the \ 
external
 libavcodec/libvpxenc: Don't free user-provided AVPacket
 libavcodec/libmp3lame: Don't free user-provided AVPacket
 avcodec/libopusenc: Don't free user-provided AVPacket
 avformat/matroskadec: Fix default value of BlockAddID