)]}'
{
  "commit": "04d4ac92f009a2ed451836793d7aacd6ae0e1861",
  "tree": "d5937b43ac779010f1aad3183ad41212fe33ad41",
  "parents": [
    "83225ddde852dde3d3198544294962d25c2753db"
  ],
  "author": {
    "name": "Julio Barba",
    "email": "juliobbv@gmail.com",
    "time": "Sat Feb 28 00:26:15 2026 -0500"
  },
  "committer": {
    "name": "Wan-Teh Chang",
    "email": "wtc@google.com",
    "time": "Thu Mar 19 15:24:45 2026 -0700"
  },
  "message": "Extend tune IQ/SSIMULACRA2 to inter-frame encoding modes\n\nThis is a \"naive\" extension of tune IQ and SSIMULACRA2 to work with\nlibaom\u0027s inter-frame encoding (good-quality and realtime) modes.\nThis is useful for layered image encoding.\n\nAs part of this change, deltaq-mode\u003d6 (Variance Boost) is also\nextended to good-quality and realtime modes.\n\nEven without any inter-frame specific adjustments, tune IQ\nsignificantly improves over tune SSIM (both in good-quality mode,\ncpu-used\u003d6) on two-layered image encoding (avifenc\u0027s\n`--progressive`) in 4:4:4 chroma subsampling mode (Daala\u0027s subset1):\n- SSIMULACRA 2 60: -13.7%\n- SSIMULACRA 2 70: -12.9%\n- SSIMULACRA 2 80: -11.6%\n- SSIMULACRA 2 90: -12.1%\n\nChange-Id: If3e6509d1ff5db8cbb2f9893ffcce2f4455eab84\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "af713bb72f9220da505f66990bf774f20ae0c87f",
      "old_mode": 33188,
      "old_path": "aom/aomcx.h",
      "new_id": "70c2dad23b95fc81a985d2810c643bb3f95ec32b",
      "new_mode": 33188,
      "new_path": "aom/aomcx.h"
    },
    {
      "type": "modify",
      "old_id": "e8809cbe4f943b68c96b516c9c9c6ef3e2a2e385",
      "old_mode": 33188,
      "old_path": "av1/arg_defs.c",
      "new_id": "f69ee704ad4b237fb13e5271cc72cc4f51b1454b",
      "new_mode": 33188,
      "new_path": "av1/arg_defs.c"
    },
    {
      "type": "modify",
      "old_id": "6d80fc76c607106b99ad547ab5ae6255cbf99776",
      "old_mode": 33188,
      "old_path": "av1/av1_cx_iface.c",
      "new_id": "5abd959d91c886736e7d09c7d6ab5be527327309",
      "new_mode": 33188,
      "new_path": "av1/av1_cx_iface.c"
    },
    {
      "type": "modify",
      "old_id": "c0a1227a6c3385781219c6524c9be7063add3f19",
      "old_mode": 33188,
      "old_path": "av1/encoder/av1_quantize.c",
      "new_id": "e7367c806b575d34d60f1835dc40d1fe194f510b",
      "new_mode": 33188,
      "new_path": "av1/encoder/av1_quantize.c"
    },
    {
      "type": "modify",
      "old_id": "f708c7e33aff225e4af6ac00b61b1007ac57909b",
      "old_mode": 33188,
      "old_path": "av1/encoder/encoder.h",
      "new_id": "77df0a9fc57d0ff3f0332f842918f72bf8dd8757",
      "new_mode": 33188,
      "new_path": "av1/encoder/encoder.h"
    },
    {
      "type": "modify",
      "old_id": "0b14bf870f743738718f459ef20931046b4d9ef7",
      "old_mode": 33188,
      "old_path": "av1/encoder/pickcdef.c",
      "new_id": "d498c0671dfc58abd2178b53a33df0eb6a64c9df",
      "new_mode": 33188,
      "new_path": "av1/encoder/pickcdef.c"
    },
    {
      "type": "modify",
      "old_id": "ecf4244b63690b6543900e8e713ba6fb3104466f",
      "old_mode": 33188,
      "old_path": "av1/encoder/picklpf.c",
      "new_id": "d7333aaedf3da993a9e97d286ae19f3bb806c4d4",
      "new_mode": 33188,
      "new_path": "av1/encoder/picklpf.c"
    },
    {
      "type": "modify",
      "old_id": "7c14eab6438743f9d6539e7fc3c10c08c2af409e",
      "old_mode": 33188,
      "old_path": "av1/encoder/speed_features.c",
      "new_id": "7939f7c217acd354b167ce1cc12a3282f630876e",
      "new_mode": 33188,
      "new_path": "av1/encoder/speed_features.c"
    },
    {
      "type": "modify",
      "old_id": "0269f4351ec2e72618261828338e3ff99545aebb",
      "old_mode": 33188,
      "old_path": "av1/encoder/tpl_model.c",
      "new_id": "546d100bd224fa3c24ee7be535be406158ee40ad",
      "new_mode": 33188,
      "new_path": "av1/encoder/tpl_model.c"
    },
    {
      "type": "modify",
      "old_id": "cc53d9291fcb7de910f2d8e000a639a237085bb8",
      "old_mode": 33188,
      "old_path": "test/encode_api_test.cc",
      "new_id": "af86bb8315e14588726da794a208b95c2543a1f9",
      "new_mode": 33188,
      "new_path": "test/encode_api_test.cc"
    }
  ]
}