)]}'
{
  "commit": "cdc954fdc842c8bba298d8ca523511bd242cbc8c",
  "tree": "3939adadbc06a1e643e2fe26b6f42fa35baee7db",
  "parents": [
    "95fb9008f85a035c35f5bcd3c9278dc1f6a26f66"
  ],
  "author": {
    "name": "Pengchong Jin",
    "email": "pengchong@google.com",
    "time": "Mon Jun 16 09:17:45 2014 -0700"
  },
  "committer": {
    "name": "Pengchong Jin",
    "email": "pengchong@google.com",
    "time": "Mon Jun 16 10:16:27 2014 -0700"
  },
  "message": "skip the un-necessary motion search in the first pass\n\nThis patch allows the VP9 encoder to skip the un-necessary\nmotion search in the first pass. It computes the motion error\nof 0,0 motion using the last source frame as the reference,\nand skips the further motion search if this error is small.\n\nBorg test shows overall the patch gives PSNR gain (derf -0.001%,\nyt 0.341%, hd 0.282%). Individual clips may have PSNR gain or\nloss. The best PSNR performance is 7.347% and the worst is -0.662%.\nThe first pass encoding speedup for slideshow clips is over 30%.\n\nChange-Id: I4cac4dbd911f277ee858e161f3ca652c771344fe\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "7cadb36ee2e70254e70a4025aaf22ca1fcae4b16",
      "old_mode": 33188,
      "old_path": "vp9/encoder/vp9_firstpass.c",
      "new_id": "5e82bb3f4caee48c381046eb814a03ea8f3cdb05",
      "new_mode": 33188,
      "new_path": "vp9/encoder/vp9_firstpass.c"
    }
  ]
}