src/third_party/web_platform_tests/media-source/mp4/test-av-448k-44100Hz-1ch-640x480-30fps-10kfr-manifest.json

{
    "url": "mp4/test-av-448k-44100Hz-1ch-640x480-30fps-10kfr.mp4",
    "type": "video/mp4;codecs=\"avc1.4D4001,mp4a.40.2\""
}