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• vulkan_ffv1 : cache only 2 lines when decoding RGB

  1er avril, par Lynne

  vulkan_ffv1: cache only 2 lines when decoding RGB
  
  This reduces the intermediate VRAM used for RGB decoding by a
  factor of 100x for 6k video.
  This also speeds the decoder up by 16% for 4k RGB24 and 31% for 6k video.
  
  This is equivalent to what the software decoder does, but with less pointers.
  

  • [DH] libavcodec/vulkan/Makefile
  • [DH] libavcodec/vulkan/ffv1_dec.comp
  • [DH] libavcodec/vulkan/ffv1_dec_rct.comp
  • [DH] libavcodec/vulkan_ffv1.c
  • [DH] libavutil/vulkan_functions.h

• avutil/tests/aes_ctr : test more than a single block worth of data

  1er avril, par James Almer

  avutil/tests/aes_ctr: test more than a single block worth of data
  
  This should exercise the implementation more thoroughly after an upcoming
  change.
  
  Signed-off-by: James Almer <jamrial@gmail.com>
  

  • [DH] libavutil/tests/aes_ctr.c

• avutil/aes_ctr : simplify incrementing the counter

  1er avril, par James Almer

  avutil/aes_ctr: simplify incrementing the counter
  
  Signed-off-by: James Almer <jamrial@gmail.com>
  

  • [DH] libavutil/aes_ctr.c

• avutil/aes_ctr : simplify and optimize av_aes_ctr_crypt()

  1er avril, par James Almer

  avutil/aes_ctr: simplify and optimize av_aes_ctr_crypt()
  
  Process data in chunks of four or eight bytes, depending on host, instead of
  one at a time.
  
  before:
  55561 decicycles in av_aes_ctr_crypt
  
  after:
  52204 decicycles in av_aes_ctr_crypt
  
  Signed-off-by: James Almer <jamrial@gmail.com>
  

  • [DH] libavutil/aes_ctr.c

• avcodec/mediacodecdec : Reset optional fields when parse format

  1er avril, par Zhao Zhili

  avcodec/mediacodecdec: Reset optional fields when parse format
  
  Parse format can be called multiple times, e.g., when resolution
  changed. If getInt32 fails, optional member variables will retain
  their previously set values without modification. This can be a
  big problem for new resolution with old crop info.
  
  This patch reset optional fields to zero when getInt32 failed.
  

  • [DH] libavcodec/mediacodecdec_common.c