{
  "about": "platform-decode §2: the query a sink reads from an entry's payload. payload_file names a WAI1 envelope under wai/ whose payload is the entry's; sps_hex is an HEVC SPS NAL unit, header included, as an Annex B stream carries it. The two AV1 objects are floor objects of the packaging corpus (SPEC §5's AV1 framing); their codec string is the one the packager wrote into the pack's HLS master. The SPS is the one the platform's HEVC encoder wrote through WebCodecs, configured as hvc1.1.6.L93.B0 for 640x360 with prefer-hardware (a hint the user agent may ignore, so nothing here says which encoder ran): it states general_level_idc 63 (level 2.1), and the codec string the encoder declared for its output repeated the configured one.",
  "cases": [
    {
      "id": "corpus-floor-object-60-units",
      "capability": "wai.video.av1",
      "payload_file": "pack-conformance/packs/video-base-01/package/objects/35c7a45323b7afe979c123fa885f35cc55fabd2a1954759aebe4b95dbc76361f.wai",
      "expect": { "codec": "av01.0.00M.08", "width": 64, "height": 36, "codedWidth": 64, "codedHeight": 36, "framerate": [25, 1], "bitrate": 7230, "bitDepth": 8 }
    },
    {
      "id": "corpus-floor-object-40-units",
      "capability": "wai.video.av1",
      "payload_file": "pack-conformance/packs/video-base-01/package/objects/761c4649427c51796a2b699568775765b209ee80d2f4fc1cf040838c6724aa2d.wai",
      "expect": { "codec": "av01.0.00M.08", "width": 64, "height": 36, "codedWidth": 64, "codedHeight": 36, "framerate": [25, 1], "bitrate": 8715, "bitDepth": 8 }
    },
    {
      "id": "platform-encoder-sps",
      "capability": "wai.video.hevc",
      "sps_hex": "420101016000000300b0000003000003003fa005020171f2e206ee45914bff2e7f13fa9b8086808040",
      "expect": { "codec": "hev1.1.6.L63.B0", "width": 640, "height": 360, "codedWidth": 640, "codedHeight": 368, "bitDepth": 8 }
    }
  ]
}