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• avcodec/aac/aacdec_usac : Simplify decode_usac_scale_factors()

  7 février, par Michael Niedermayer

  avcodec/aac/aacdec_usac: Simplify decode_usac_scale_factors()
  
  Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/aac/aacdec_usac.c

• avcodec/aac/aacdec : Clear SFO on error

  7 février, par Michael Niedermayer

  avcodec/aac/aacdec: Clear SFO on error
  
  types and SFO become confused for a USAC stream
  
  Fixes: out of array access
  Fixes: 383854203/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_LATM_fuzzer-4996677847547904.fuzz
  
  Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
  Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/aac/aacdec.c

• avcodec/aarch64/opusdsp_neon : Simplify opus_postfilter_neon

  7 février, par Krzysztof Pyrkosz

  avcodec/aarch64/opusdsp_neon: Simplify opus_postfilter_neon
  
  This change removes one extra floating point operation and simplifies
  load operations at the beginning of the loop by using dedicated register
  for each of the 5 pointers and interleaving it with calculations. The
  first case seems to be a bit slower, but the performance increase is
  substantial in the other two.
  
  A78 before:
  postfilter_15_neon:                                   1684.8 ( 4.23x)
  postfilter_512_neon:                                  1395.5 ( 5.10x)
  postfilter_1022_neon:                                 1357.0 ( 5.25x)
  
  After:
  postfilter_15_neon:                                   1742.2 ( 4.09x)
  postfilter_512_neon:                                  1169.8 ( 6.09x)
  postfilter_1022_neon:                                 1160.0 ( 6.12x)
  
  A72 before:
  postfilter_15_neon:                                   3144.8 ( 2.39x)
  postfilter_512_neon:                                  3141.2 ( 2.39x)
  postfilter_1022_neon:                                 3230.0 ( 2.33x)
  
  After:
  postfilter_15_neon:                                   2847.8 ( 2.64x)
  postfilter_512_neon:                                  2877.8 ( 2.61x)
  postfilter_1022_neon:                                 2837.2 ( 2.65x)
  
  x13s before:
  postfilter_15_neon:                                   1615.4 ( 2.61x)
  postfilter_512_neon:                                   963.1 ( 4.39x)
  postfilter_1022_neon:                                  963.6 ( 4.39x)
  
  After:
  postfilter_15_neon:                                   1749.6 ( 2.41x)
  postfilter_512_neon:                                   707.1 ( 5.97x)
  postfilter_1022_neon:                                  706.1 ( 5.99x)
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DH] libavcodec/aarch64/opusdsp_neon.S

• avcodec/hevc_mp4toannexb : prepend extradata before the leading PS for an IRAP

  7 février, par James Almer

  avcodec/hevc_mp4toannexb: prepend extradata before the leading PS for an IRAP
  
  Parameter sets may be coded in the packet before an IRAP (as is the case for
  the hev1 ISO-BMFF brand), and they should have priority as they may override
  the extradata ones.
  As such, prepend the extradata PS NALUs to the packet PS NALUs if they are
  present before an IRAP, instead of prepending them to the IRAP slice.
  
  Should fix ticket #11458.
  
  Signed-off-by: James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/bsf/hevc_mp4toannexb.c

• fftools/opt_common : add time and datetime log flags

  7 février, par softworkz

  fftools/opt_common: add time and datetime log flags
  
  This commit adds two logging flags: 'time' and 'datetime'.
  
  Usage:
  
  ffmpeg -loglevel +time
  
  or
  
  ffmpeg -loglevel +datetime
  
  Signed-off-by: softworkz <softworkz@hotmail.com>
  Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] doc/fftools-common-opts.texi
  • [DH] fftools/opt_common.c