1. 13 Feb, 2012 1 commit
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    • Anton Khirnov's avatar
      avserver: fix build after the next bump. · b263bf66
      Anton Khirnov authored
      Now that 0.8 is out we can reapply this commit. It breaks shared
      avserver builds due to avserver using internal libavformat symbols,
      which are now hidden, so this commit also disables avserver with
      --enable-shared.
      b263bf66
  8. 14 Jan, 2012 1 commit
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  17. 17 Dec, 2011 1 commit
    • Ronald S. Bultje's avatar
      get_bits: introduce safe bitreading to prevent overreads. · 8cfbbd92
      Ronald S. Bultje authored
      When turned on, H264/CAVLC gets ~15% (CVPCMNL1_SVA_C.264) slower for
      ultra-high-bitrate files, or ~2.5% (CVFI1_SVA_C.264) for lower-bitrate
      files. Other codecs are affected to a lesser extent because they are
      less optimized; e.g., VC-1 slows down by less than 1% (all on x86).
      The patch generated 3 extra instructions (cmp, cmovae and mov) per
      call to get_bits().
      
      The performance penalty on ARM is within the error margin for most
      files, up to 4% in extreme cases such as CVPCMNL1_SVA_C.264.
      
      Based on work (for GCI) by Aneesh Dogra <lionaneesh@gmail.com>, and
      inspired by patch in Chromium by Chris Evans <cevans@chromium.org>.
      8cfbbd92
  18. 16 Dec, 2011 1 commit
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