1. 14 Jan, 2011 1 commit
    • Paul Wilkins's avatar
      KF/GF Pulsing · c8338ebf
      Paul Wilkins authored
      This change is designed to try and reduce pulsing effects when moving
      with a complex transition like a fade, into an easy or static section in
      an otherwise difficult clip in CQ mode.
      
      The active CQ level is relaxed down to the user entered level for frames that
      are generating less than the passed in minimum bandwidth.
      
      Change-Id: Id6d8b551daad4f489c087bd742bc95418a95f3f0
      c8338ebf
  2. 13 Jan, 2011 2 commits
  3. 12 Jan, 2011 1 commit
    • Paul Wilkins's avatar
      Limit key frame quantizer for forced key frames. · 55acda98
      Paul Wilkins authored
      Where a key frame occurs because of a minimum interval
      selected by the user, then these forced key frames ideally need
      to be more closely matched in quality to the surrounding frame.
      
      Change-Id: Ia55b1f047e77dc7fbd78379c45869554f25b3df7
      55acda98
  4. 11 Jan, 2011 6 commits
  5. 10 Jan, 2011 3 commits
    • Yunqing Wang's avatar
      Fix bug in motion search · 3675b229
      Yunqing Wang authored
      The maximum possible MV in 1/8 pel units is (1<<11), which could
      cause mvcost out of its range that is 1023. Change maximum
      possible MV in 1/8 pel units to (1<<11)-8 will fix this problem.
      
      Change-Id: I5788ed1de773f66658c14f225fb4ab5b1679b74b
      3675b229
    • Paul Wilkins's avatar
      Two Pass VBR change · cf7c4732
      Paul Wilkins authored
      Further experiment with restriction of the Q range.
      
      This uses the average non KF/GF/ARF quantizer,  instead
      of just relying on the initial value. It is not such a strong constraint
      but there may be a reduced risk of rate misses.
      
      Change-Id: I424fe782a37a2f4e18c70805e240db55bfaa25ec
      cf7c4732
    • Paul Wilkins's avatar
      Revert BASE_ERRPERMB · 405499d8
      Paul Wilkins authored
      Constant value reverted pending more tests
      on different video formats.
      
      Change-Id: I07d11a0e0185e60724698c835416caf2e0774e61
      405499d8
  6. 07 Jan, 2011 7 commits
    • Paul Wilkins's avatar
      Merge "CQ Mode" · c28b10ad
      Paul Wilkins authored
      c28b10ad
    • Paul Wilkins's avatar
      CQ Mode · e0846c9c
      Paul Wilkins authored
      The merge includes hooks to for CQ mode and other code
      changes merged from the test branch.
      
      CQ mode attempts to maintain a more stable quantizer within a clip
      whilst also trying to adhere to a guidline maximum bitrate.
      
      The existing target data rate parameter is used to specify the
      guideline maximum bitrate.
      
      A new parameter allows the user to specify a target CQ level.
      
      For normal (non kf/gf/arf) frames, the quantizer will not drop BELOW the
      user specified value (0-63). However, in some cases the encoder may
      choose to impose a target CQ that is above that specified by the user,
      if it estimates that consistent use of the target value is not compatible
      with guideline maximum bitrate.
      
      Change-Id: I2221f9eecae8cc3c431d36caf83503941b25e4c1
      e0846c9c
    • Paul Wilkins's avatar
      Merge "Limit Q variability in two pass." · ba976eaa
      Paul Wilkins authored
      ba976eaa
    • Paul Wilkins's avatar
      Limit Q variability in two pass. · 3af3593c
      Paul Wilkins authored
      In two pass encoding each frame is given an active
      Q range to work with. This change limits how much this
      Q range can be altered over time from the initial estimate
      made for the clip as a whole.
      
      There is some danger this could lead to overshoot or undershoot
      in some corner cases but it helps considerably in regard to
      clips where either there is a glut or famine of bits in some sections,
      particularly near the end of a clip.
      
      Change-Id: I34fcd1af31d2ee3d5444f93e334645254043026e
      3af3593c
    • Paul Wilkins's avatar
      f7e2f1fe
    • Scott LaVarnway's avatar
      Merge "Removed cpi->target_bits_per_mb" · dd314351
      Scott LaVarnway authored
      dd314351
    • Scott LaVarnway's avatar
      Removed cpi->target_bits_per_mb · 6dbdfe34
      Scott LaVarnway authored
      cpi->target_bits_per_mb is currently not being used,
      so delete it.  Also removed other unused code in rdopt.c.
      
      Change-Id: I98449f9030bcd2f15451d9b7a3b9b93dd1409923
      6dbdfe34
  7. 06 Jan, 2011 2 commits
    • Johann's avatar
      x86 sse2 temporal_filter_apply · 8b0cf5f7
      Johann authored
      count can be reduced to short because the max number of filtered frames
      is set to 15. the max value for any frame is 32 (modifier = 16,
      filter_weight = 2). 15*32 = 480 which requires 9 bits
      
      this function goes from about 7000 us / 1000 iterations for the C code
      to < 275 us / 1000 iterations for sse2 for block_size = 16 and from
      about 1800 us / 1000 iters to < 100 us / 1000 iters for block_size = 8
      
      Change-Id: I64a32607f58a2d33c39286f468b04ccd457d9e6e
      8b0cf5f7
    • Paul Wilkins's avatar
      Disable some features for first pass. · 431dac08
      Paul Wilkins authored
      The following features don't make sense for the first
      pass in its current form and have a significant impact on its
      speed (up to 50%).
      
      Slow quantizer, slow dct and trellis optimization.
      
      Change-Id: Id9943f6765ffbd71fc0084ec7dfbc9d376fd6fcd
      431dac08
  8. 04 Jan, 2011 1 commit
    • Paul Wilkins's avatar
      Adjustment to boost calculation in two pass. · b095d9df
      Paul Wilkins authored
      Calculate a minimum intra value to be used in determining the
      IIratio scores used in two pass, second pass.
      
      This is to make sure sections that are low complexity" in the
      intra domain are still boosted appropriately for KF/GF/ARF.
      
      For now I have commented out the Q based adjustment of
      KF boost.
      
      Change-Id: I15deb09c5bd9b53180a2ddd3e5f575b2aba244b3
      b095d9df
  9. 29 Dec, 2010 2 commits
    • Scott LaVarnway's avatar
      Fixed encoder crash when mult-threading is enabled. · de4e8185
      Scott LaVarnway authored
      Happens in real-time mode.  Will happen in good quality, speed 1.
      
      Change-Id: I3e5b68827b1a5798d0431b088a709256d1ce2c95
      de4e8185
    • Yunqing Wang's avatar
      Always update last_frame_type · a864678c
      Yunqing Wang authored
      Scott pointed out that last_frame_type only gets updated while
      loopfilter exists. Since last_frame_type is also needed in
      motion search now, it needs to be updated every frame.
      
      Change-Id: I9203532fd67361588d4024628d9ddb8e391ad912
      a864678c
  10. 28 Dec, 2010 5 commits
  11. 26 Dec, 2010 1 commit
  12. 24 Dec, 2010 1 commit
    • Yaowu Xu's avatar
      adjusted sad_per_bit to correlate with quantizer · 0f5264b5
      Yaowu Xu authored
      Re-calibrated sad_per_bit16 and sad_per_bit4 tables to linearly
      correlated to quantizer values, these two variables are used in
      motion search for costing motion vectors. This change has an small
      positive effect on compression.
      
      Change-Id: Ic9b5ea6fb8d5078ef663ba4899db019cc51f4166
      0f5264b5
  13. 23 Dec, 2010 4 commits
  14. 22 Dec, 2010 4 commits
    • John Koleszar's avatar
      bd9b383d
    • John Koleszar's avatar
      make yasm generate cv8 debug data on win32 · 30830d5a
      John Koleszar authored
      Native Windows targets should use CV8 format debugging symbols, not
      DWARF.
      
      Change-Id: I9489163fcd9d749b72f6c70ecbce67a6f0790802
      30830d5a
    • Johann's avatar
      improve integer version of filter · 20b855c3
      Johann authored
      the lookup table is based on floating point calculations (see source)
      
      by moving the *3 before the downshift and adding the rounding bit, the
      delta (LUT - integer) goes from:
      ______________________________________
      __ 1__ 1______________________________
      __ 1__ 1______________________________
      ____ 1______ 1________________________
      ____ 1 2__ 2 1________________________
      ______ 1 1 2__ 2__ 2__ 2 1 1__________
      ________ 1 1 2 2__ 1 2 3 1 2__ 2__ 2__
      to:
      __-1__-1______________________________
      ______________________________________
      ____-1______-1________________________
      ______________________________________
      ________-1______________-1____________
      ______________________________________
      
      it's important to be able to use the integer version because the LUT
      more or less precludes SIMD optimizations
      
      Change-Id: I45a81127dc7b72a06fba951649135d9d918386c0
      20b855c3
    • Johann's avatar
      temporal filter naming changes · 4b6219cb
      Johann authored
      be more consistant with the naming pattern, especially wrt rtcd
      
      Change-Id: I3df50686a09f1dab0a9620b5adbb8a1577b40f2f
      4b6219cb