1. 30 Aug, 2013 1 commit
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  8. 06 Mar, 2012 1 commit
    • Ronald S. Bultje's avatar
      Don't use ff_cropTbl[] for IDCT. · c23acbae
      Ronald S. Bultje authored
      Results of IDCT can by far outreach the range of ff_cropTbl[], leading
      to overreads and potentially crashes.
      
      Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
      CC: libav-stable@libav.org
      c23acbae
  9. 01 Mar, 2012 1 commit
  10. 20 Feb, 2012 1 commit
  11. 16 Jan, 2012 1 commit
  12. 15 Jan, 2012 1 commit
    • Christophe GISQUET's avatar
      rv34: Intra 16x16 handling · d7806238
      Christophe GISQUET authored
      Extract processing of intra 16x16 blocks from intra macroblock
      processing.
      Also implement a function performing inverse transform and block
      reconstruction for DC-only blocks in 1 pass instead of 2.
      d7806238
  13. 12 Jan, 2012 1 commit
    • Christophe GISQUET's avatar
      rv34: DC-only inverse transform · 3faa303a
      Christophe GISQUET authored
      When decoding coefficients, detect whether the block is DC-only, and take
      advantage of this knowledge to perform DC-only inverse transform.
      
      This is achieved by:
      - first, changing the 108x4 element modulo_three_table into a 108 element
        table (kind of base4), and accessing each value using mask and shifts.
      - then, checking low bits for 0 (as they represent the presence of higher
        frequency coefficients)
      
      Also provide x86 SIMD code for the DC-only inverse transform.
      Signed-off-by: 's avatarKostya Shishkov <kostya.shishkov@gmail.com>
      3faa303a
  14. 04 Jan, 2012 1 commit
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  17. 12 Oct, 2011 1 commit