Log Message:
ffmpeg2: update to 2.8.13.

version 2.8.13:
- avformat/mxfdec: Fix Sign error in mxf_read_primer_pack()
- avformat/mxfdec: Fix DoS issues in mxf_read_index_entry_array()
- avformat/nsvdec: Fix DoS due to lack of eof check in nsvs_file_offset loop.
- avcodec/snowdec: Fix integer overflow in decode_subband_slice_buffered()
- avcodec/hevc_ps: Fix undefined shift in pcm code
- avcodec/sbrdsp_fixed: Fix undefined overflows in autocorrelate()
- avformat/mvdec: Fix DoS due to lack of eof check
- avformat/rl2: Fix DoS due to lack of eof check
- avformat/cinedec: Fix DoS due to lack of eof check
- avformat/asfdec: Fix DoS due to lack of eof check
- avformat/hls: Fix DoS due to infinite loop
- ffprobe: Fix NULL pointer handling in color parameter printing
- ffprobe: Fix null pointer dereference with color primaries
- avcodec/hevc_ps: Check delta_pocs in ff_hevc_decode_short_term_rps()
- avformat/aviobuf: Fix signed integer overflow in avio_seek()
- avformat/mov: Fix signed integer overflows with total_size
- avcodec/aacdec_template: Fix running cleanup in decode_ics_info()
- avcodec/me_cmp: Fix crashes on ARM due to misalignment
- avcodec/fic: Fixes signed integer overflow
- avcodec/snowdec: Fix off by 1 error
- avcodec/diracdec: Check perspective_exp and zrs_exp.
- avcodec/mpeg4videodec: Clear mcsel before decoding an image
- avcodec/dirac_dwt: Fixes integer overflows in COMPOSE_DAUB97*
- avcodec/aacdec_fixed: fix invalid shift in predict()
- avcodec/h264_slice: Fix overflow in slice offset
- avformat/utils: fix memory leak in avformat_free_context
- avcodec/dirac_dwt: Fix multiple integer overflows in COMPOSE_DD97iH0()
- avcodec/diracdec: Fix integer overflow in divide3()
- avcodec/takdec: Fix integer overflow in decode_subframe()
- avformat/rtmppkt: Convert ff_amf_get_field_value() to bytestream2
- avformat/rtmppkt: Convert ff_amf_tag_size() to bytestream2
- avcodec/hevc_ps: fix integer overflow in log2_parallel_merge_level_minus2
- avformat/oggparsecelt: Do not re-allocate os->private
- avcodec/aacps: Fix multiple integer overflow in map_val_34_to_20()
- avcodec/aacdec_fixed: fix: left shift of negative value -1
- doc/filters: typo in frei0r
- avcodec/aacdec_template (fixed point): Check gain in decode_cce() to avoid \ 
undefined shifts later
- avcodec/mjpegdec: Clip DC also on the negative side.
- avcodec/aacps (fixed point): Fix multiple signed integer overflows
- avcodec/sbrdsp_fixed: Fix integer overflow in sbr_hf_apply_noise()
- avcodec/wavpack: Fix invalid shift
- avcodec/hevc_ps: Fix integer overflow with beta/tc offsets
- avcodec/vb: Check vertical GMC component before multiply
- avcodec/jpeg2000dwt: Fix integer overflow in dwt_decode97_int()
- avcodec/apedec: Fix integer overflow
- avcodec/wavpack: Fix integer overflow in wv_unpack_stereo()
- avcodec/mpeg4videodec: Fix GMC with videos of dimension 1
- avcodec/wavpack: Fix integer overflow
- avcodec/takdec: Fix integer overflow
- avcodec/tiff: Update pointer only when the result is used
- avcodec/hevc_filter: Fix invalid shift
- avcodec/mpeg4videodec: Fix overflow in virtual_ref computation
- avcodec/wavpack: Fix undefined integer negation
- avcodec/aacdec_fixed: Check s for being too small
- avcodec/h264: Fix mix of lossless and lossy MBs decoding
- avcodec/h264_mb: Fix 8x8dct in lossless for new versions of x264
- avcodec/h264_cabac: Fix CABAC+8x8dct in 4:4:4
- avcodec/takdec: Fixes: integer overflow in AV_SAMPLE_FMT_U8P output
- avcodec/jpeg2000dsp: Reorder operations in ict_int() to avoid 2 integer overflows
- avcodec/hevcpred_template: Fix left shift of negative value
- avcodec/hevcdec: Fix signed integer overflow in decode_lt_rps()
- avcodec/jpeg2000dec: Check nonzerobits more completely
- avcodec/shorten: Sanity check maxnlpc
- avcodec/jpeg2000: Fixes integer overflow in ff_jpeg2000_ceildivpow2()
- avcodec/hevcdec: Check nb_sps
- avcodec/hevc_refs: Check nb_refs in add_candidate_ref()
- avcodec/mpeg4videodec: Check sprite delta upshift against overflowing.
- avcodec/mpeg4videodec: Fix integer overflow in num_sprite_warping_points=2 case
- avcodec/aacsbr_fixed: Check shift in sbr_hf_assemble()
- avcodec/sbrdsp_fixed: Return an error from sbr_hf_apply_noise() if operations \ 
are impossible
- avcodec/jpeg2000dwt: Fix runtime error: left shift of negative value -123
- avcodec/wavpack: Fix runtime error: signed integer overflow: 1886191616 + \ 
277872640 cannot be represented in type 'int'
- avcodec/snowdec: Fix runtime error: left shift of negative value -1
- avcodec/aacdec_fixed: Fix runtime error: left shift of negative value -1297616
- avcodec/tiff: Fix leak of geotags[].val
- avcodec/ra144: Fix runtime error: signed integer overflow: -2200 * 1033073 \ 
cannot be represented in type 'int'
- avcodec/flicvideo: Fix runtime error: signed integer overflow: 4864 * 459296 \ 
cannot be represented in type 'int'
- avcodec/indeo4: Check remaining data in Pic hdr extension parsing code
- avcodec/ac3dec_fixed: Fix multiple runtime error: signed integer overflow: \ 
-39271008 * 59 cannot be represented in type 'int'
- avcodec/mpeg4videodec: Fix runtime error: signed integer overflow: 53098 * \ 
40448 cannot be represented in type 'int'
- avcodec/pafvideo: Fix assertion failure
- avcodec/takdec: Fix multiple runtime error: signed integer overflow: 637072 * \ 
4096 cannot be represented in type 'int'