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Les articles publiés sur le site

• webp : Fix alpha decoding

  18 février 2017, par Mark Thompson

  webp: Fix alpha decoding
  
  This was broken by 4e528206bc4d968706401206cf54471739250ec7 - the webp
  decoder was assuming that it could set the output pixfmt of the vp8
  decoder directly, but after that change it no longer could because
  ff_get_format() was used instead.  This adds an internal get_format()
  callback to webp use of the vp8 decoder to override the pixfmt
  appropriately.
  

  • [DBH] libavcodec/webp.c

• fate : Add webp alpha test

  17 février 2017, par Mark Thompson

  fate: Add webp alpha test
  

  • [DBH] tests/fate/image.mak
  • [DBH] tests/ref/fate/webp-yuv420p
  • [DBH] tests/ref/fate/webp-yuva420p

• nvenc : Fix nvec vs. nvenc typo

  17 février 2017, par Diego Biurrun

  nvenc: Fix nvec vs. nvenc typo
  

  • [DBH] libavcodec/nvenc.c

• configure : Explicitly spell out first require_pkg_config() parameter

  16 février 2017, par Diego Biurrun

  configure: Explicitly spell out first require_pkg_config() parameter
  
  This is less confusing than encountering "" in the argument list.
  

  • [DBH] configure

• vf_fade : Make sure to not miss the last lines of a frame

  16 février 2017, par Martin Storsjö

  vf_fade: Make sure to not miss the last lines of a frame
  
  When slice_h is rounded up due to chroma subsampling, there's
  a risk that jobnr * slice_h exceeds frame->height.
  
  Prior to a638e9184d63, this wasn't an issue for the last slice
  of a frame, since slice_end was set to frame->height for the last
  slice.
  
  a638e9184d63 tried to fix the case where other slices than the
  last one would exceed frame->height (which can happen where the
  number of slices/threads is very large compared to the frame
  height).
  
  However, the fix in a638e9184d63 instead broke other cases,
  where slice_h * nb_threads < frame->height. Therefore, make
  sure the last slice always ends at frame->height.
  
  CC: libav-stable@libav.org
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavfilter/vf_fade.c