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• lavc/vvc : Fix divide-by-zero in LMCS param derivation

  24 mai, par Frank Plowman

  lavc/vvc: Fix divide-by-zero in LMCS param derivation
  
  Add three missing requirements on bitstream conformance from 7.4.3.19 of
  H.266 (V3).  Issue found using fuzzing.
  
  Signed-off-by: Frank Plowman <post@frankplowman.com>
  

  • [DH] libavcodec/vvc/ps.c

• avcodec/vc2enc : Use LUT to avoid repeated av_log2()

  24 mai, par Andreas Rheinhardt

  avcodec/vc2enc: Use LUT to avoid repeated av_log2()
  
  Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/vc2enc.c

• doc : use av_dict_iterate in documentation example

  23 mai, par Marvin Scholz

  doc: use av_dict_iterate in documentation example
  

  • [DH] libavformat/avformat.h

• ffv1enc_vulkan : fix array overflow

  23 mai, par Maxime Gervais

  ffv1enc_vulkan: fix array overflow
  

  • [DH] libavcodec/ffv1enc_vulkan.c

• avcodec/ac3dec : Hardcode tables to save space

  23 mai, par Andreas Rheinhardt

  avcodec/ac3dec: Hardcode tables to save space
  
  The code to initialize the ungrouped bap mantissa tables
  (bap 3 or 5) takes more bytes of .text than the tables itself;
  they have therefore been hardcoded.
  
  For GCC (14, -O3, albeit in an av_cold function), the initialization
  code takes 99B each for the fixed and floating point decoders
  (the code is currently duplicated), whereas the hardcoded tables
  only take 96B. For Clang 19 it were 374B each (I don't now what
  Clang was doing there).
  
  Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/ac3dec.c
  • [DH] libavcodec/ac3dec_data.c
  • [DH] libavcodec/ac3dec_data.h