Remember “The Classics”? ForemanCIF, MobileCIF… they are back in 4K and in full force Elemental technologies has created updated versions of these video testing clips in 4k format. We have taken them up and they are now part of our main testing benchmark setup for some of our CABSscore . You can download originals here but we have prepared a CODECbench ready YUV sequence sets, with json metadata information attached to them.

Download 7Zipped file here. ( 11.32GB 7zip compressed, Creative Commons License )

Description of individual sequences from json metadata files follows as well as youtube clips of the video content. For original files and benchmarking, please download file above.

parkjoy4k

This is a very hard sequence to encode. There is an amazing level of detail in it while it’s panning globally. Additionally, there is a few people running in the opposite direction of the global panning that can be seen in the distance.

Things to look for

• Correct rendering of peoples clothing and objects
• Correct rendering without chroma aberrations of umbrellas
• Water reflection should not have observable blockiness
• Tree leaves everywhere should be clearly visible and without artifacts
• Tree trunks panning at the beginning of the sequence should not leave trails behind

{
    "filename": "parkjoy4k.yuv",
    "format": "420P",
    "frame_count": 500,
    "framesize": 12441600,
    "height": "2160",
    "width": "3840",
    "nickname" : "parkjoy4k",
    "fpsnum" : 50,
    "fpsden" : 1
}

mobile4k

This sequence shows a man talking in front of the camera with heavy head motion and then pans onto a construction site.

Things to look for

• Artifacts around the moving head of the construction worker
• Has has rain drops on it and should be rendered and visible clearly at 4k
• Smooth panning without artifact trailing
• Clean introduction of all the new scene content (the construction site) without streaks

{
"filename": "mobile4k.yuv",
"format": "420P",
"fpsden": "1001",
"fpsnum": "24000",
"frame_count": 355,
"framesize": 12441600,
"height": "2160",
"nickname": "mobile4k",
"width": "3840"
}

foreman4k

This sequence presents global panning from left to right while many items are moving in the opposite direction inside the frame.

Things to look for

• The sharpness of the numbers in the calendar against the white calendar
• The artifacts shown when the atomium object shows up from the left of the screen at 4s
• The consistency of the red color of the spinning ball in front of the train
• The correct rendering of the static panning background

{
"filename": "foreman4k.yuv",
"format": "420P",
"fpsden": "1001",
"fpsnum": "24000",
"frame_count": 248,
"framesize": 12441600,
"height": "2160",
"nickname": "foreman4k",
"width": "3840"
}

cactus4k

This is a simple sequence that tests global zoom out of a camera.

Things to look for

• Smooth zoom out without artifacts
• Correct introduction of cactus thorns and comb spikes

{
"filename": "cactus4k.yuv",
"format": "420P",
"fpsden": "1001",
"fpsnum": "24000",
"frame_count": 334,
"framesize": 12441600,
"height": "2160",
"nickname": "cactus4k",
"width": "3840"
}

coastguard4k

This is a complex sequence due to the ‘noise-like’ nature of the water waves and ripples. A codec should be able to properly identify global motion and render the water without blockiness or artifacting.

Things to look for

• No artifacts before global panning starts
• Overall quality of rendering of water features (waves, ripples) over the scene
• Chroma aberrations on the flag of the ship

{
"filename": "coastguard4k.yuv",
"format": "420P",
"fpsden": "1001",
"fpsnum": "24000",
"frame_count": 240,
"framesize": 12441600,
"height": "2160",
"nickname": "coastguard4k",
"width": "3840"
}

suzie4k

Easy video conference style scene with static background.

Things to look for

• Scene should be able to be coded at low bitrates
• No artifacts should be observed during head movement

{
"filename": "suzie4k.yuv",
"format": "420P",
"fpsden": "1001",
"fpsnum": "24000",
"frame_count": 355,
"framesize": 12441600,
"height": "2160",
"nickname": "suzie4k",
"width": "3840"
}