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Les articles publiés sur le site

• cinepakenc : Drop broken debug code

  27 juin 2017, par Diego Biurrun

  cinepakenc: Drop broken debug code
  

  • [DBH] libavcodec/cinepakenc.c

• cinepakenc : add option handling for flexibility

  27 juin 2017, par addr-see-the-website@aetey.se

  cinepakenc: add option handling for flexibility
  
  Now it is possible to adjust compression speed vs R/D when needed
  and also skip vintage player compatibility at will.
  
  Signed-off-by: Diego Biurrun <diego@biurrun.de>
  

  • [DBH] libavcodec/cinepakenc.c

• cinepakenc : fixes and improvements

  27 juin 2017, par addr-see-the-website@aetey.se

  cinepakenc: fixes and improvements
  
  version 2013-02-08 Rl
  - fixes/optimization in multistrip encoding and codebook size choice,
    quality/bitrate is now better than that of the binary proprietary encoder
  
  version 2013-02-12 Rl
  - separated codebook training sets, avoided the transfer of wasted bytes,
    which yields both better quality and smaller files
  - now using the correct colorspace (TODO: move conversion to libswscale)
  
  version 2013-02-14 Rl "Valentine's Day" version:
  - made strip division more robust
  - minimized bruteforcing the number of strips,
    (costs some R/D but speeds up compession a lot), the heuristic
    assumption is that score as a function of the number of strips has
    one wide minimum which moves slowly, of course not fully true
  - simplified codebook generation,
    the old code was meant for other optimizations than we actually do
  - optimized the codebook generation / error estimation for MODE_MC
  
  version 2013-04-28 Rl
  - bugfixed codebook optimization logic
  
  version 2014-01-20 Rl
  - made the encoder compatible with vintage decoders
    and added some yet unused code for possible future
    incremental codebook updates
  - fixed a small memory leak
  
  version 2014-01-21 Rl
  - believe it or not, now we get even smaller files, with better quality
    (which means I missed an optimization earlier :)
  
  Signed-off-by: Diego Biurrun <diego@biurrun.de>
  

  • [DBH] libavcodec/cinepakenc.c

• Add Cinepak encoder

  27 juin 2017, par Tomas Härdin

  Add Cinepak encoder
  
  With permission of Tomas Härdin applied by Rl aetey.se
  
  Signed-off-by: Diego Biurrun <diego@biurrun.de>
  

  • [DBH] Changelog
  • [DBH] doc/general.texi
  • [DBH] libavcodec/Makefile
  • [DBH] libavcodec/allcodecs.c
  • [DBH] libavcodec/cinepakenc.c

• hwcontext : Perform usual uninitialisation on derived frames contexts

  26 juin 2017, par Mark Thompson

  hwcontext: Perform usual uninitialisation on derived frames contexts
  

  • [DBH] libavutil/hwcontext.c