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• avcodec/mpeg4videoenc : Remove no-output code

  18 mai, par Andreas Rheinhardt

  avcodec/mpeg4videoenc: Remove no-output code
  
  While it offers modest speedups compared to the ordinary code,
  removing it completely offers even bigger speedups; and given
  that these speedups also exist in the ordinary mode, they are
  even more important. The no-output code has a 7.8% performance
  improvement (based on benchmarking mpeg4_encode_mb()), yet
  removing the no-output code resulted in a 9.4% improvement.
  
  Furthermore, the no-output code was broken for the majority of
  its existence (until 9207dc3b0db368bb9cf5eb295cbc1129c2975e31)
  and no one complained, so it is likely not used at all.
  
  Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/mpeg4videoenc.c

• avformat/mpegts : update stream info when PMT ES stream_type changes

  18 mai, par Pavel Koshevoy

  avformat/mpegts: update stream info when PMT ES stream_type changes
  
  I have several .ts captures where video and audio codec changes even
  though the PMT version does not change and the PIDs stay the same.
  This happens during transition to/from slate (mpeg2 video and audio)
  to network broadcast (hevc video and eac3 audio in private PES).
  
  I've updated fate ts-demux expected results.
  

  • [DH] libavformat/mpegts.c
  • [DH] tests/ref/fate/ts-demux

• lavc/vvc : Detect subpic overlaps at CTU level

  18 mai, par Frank Plowman

  lavc/vvc: Detect subpic overlaps at CTU level
  
  In d5dbcc00d889fb17948b025a468b00ddbea9e058, it was hoped that detection
  of subpicture overlaps could be performed at the tile level, so as to
  avoid introducing per-CTU checks. Unfortunately since that patch,
  fuzzing has indicated there are some structures involving
  pps_subpic_one_or_more_tiles_slice where tile-level checking is not
  sufficient.  Performing the check at the CTU level should (touch wood)
  be the be-all and and-all of this, as CTUs are the lowest common
  denominator of the picture partitioning.
  
  Signed-off-by: Frank Plowman <post@frankplowman.com>
  

  • [DH] libavcodec/vvc/ps.c

• avfilter/vf_gblur_vulkan : omit unnecessary buffer usage flag

  18 mai, par Niklas Haas

  avfilter/vf_gblur_vulkan: omit unnecessary buffer usage flag
  
  Implied internally now when needed.
  

  • [DH] libavfilter/vf_gblur_vulkan.c

• avutil/vulkan : automatically enable shader device address usage bit

  18 mai, par Niklas Haas

  avutil/vulkan: automatically enable shader device address usage bit
  
  We require this internally when using descriptor buffers, so it makes sense
  to enable it internally, also.
  

  • [DH] libavutil/vulkan.c