git.libav.org Git - libav.git/rss log

Les articles publiés sur le site

• arm : vp9lpf : Implement the mix2_44 function with one single filter pass

  14 janvier 2017, par Martin Storsjö

  arm: vp9lpf: Implement the mix2_44 function with one single filter pass
  
  For this case, with 8 inputs but only changing 4 of them, we can fit
  all 16 input pixels into a q register, and still have enough temporary
  registers for doing the loop filter.
  
  The wd=8 filters would require too many temporary registers for
  processing all 16 pixels at once though.
  
  Before:                          Cortex A7      A8     A9     A53
  vp9_loop_filter_mix2_v_44_16_neon:   289.7   256.2  237.5   181.2
  After:
  vp9_loop_filter_mix2_v_44_16_neon:   221.2   150.5  177.7   138.0
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/arm/vp9dsp_init_arm.c
  • [DBH] libavcodec/arm/vp9lpf_neon.S

• arm : vp9lpf : Use orrs instead of orr+cmp

  13 janvier 2017, par Martin Storsjö

  arm: vp9lpf: Use orrs instead of orr+cmp
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/arm/vp9lpf_neon.S

• Use the new AVIOContext destructor.

  13 janvier 2017, par Anton Khirnov

  Use the new AVIOContext destructor.
  

  • [DBH] avprobe.c
  • [DBH] libavformat/avidec.c
  • [DBH] libavformat/flac_picture.c
  • [DBH] libavformat/hdsenc.c
  • [DBH] libavformat/mpjpegdec.c
  • [DBH] libavformat/rdt.c
  • [DBH] libavformat/segment.c
  • [DBH] libavformat/smoothstreamingenc.c
  • [DBH] libavformat/swfdec.c
  • [DBH] libavformat/tests/movenc.c
  • [DBH] libavformat/wtv.c

• avio : add a destructor for AVIOContext

  13 janvier 2017, par Anton Khirnov

  avio: add a destructor for AVIOContext
  
  Before this commit, AVIOContext is to be freed with a plain av_free(),
  which prevents us from adding any deeper structure to it.
  

  • [DBH] doc/APIchanges
  • [DBH] libavformat/avio.h
  • [DBH] libavformat/aviobuf.c
  • [DBH] libavformat/version.h

• asfdec : Use the ASF stream count when iterating

  12 janvier 2017, par John Stebbins

  asfdec: Use the ASF stream count when iterating
  
  The AVFormat stream count can be larger due external factors, such as
  an id3 tag appended.
  
  Avoid an out of bound read.
  
  Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
  

  • [DBH] libavformat/asfdec.c