I have a friend who’s a singer. He showed me how much storage 1 4 min music video took. 40 min per camera, 3 cameras, 4K. Unedited raw footage came out at ~2.5TB. It’s just insane to me. My PC has 1TB of storage.

  • InverseParallax@lemmy.worldEnglish
    9·
    2 days ago

    4k with 10b/pixel (assuming, could be 12) x 60fps (assuming) x 360s (4min) x 3 cameras:

    3840 * 1920 = 7,372,800 pixels

    7372800 * 3 channels (RGB) = 22118400 values

    22118400 * 10/8 = 27648000 bytes

    27648000 * 60 = 1,658,880,000 bytes/sec

    1658880000 * 360 = 597,196,800,000 (0.6TB for 4 minutes)

    .6TB * 3 cameras = 1.8TB

    RAW means RAW, no encoding, no cute channel games, no nothing, just fuck-off I/O.

    edit: My bad, that’s 6 minutes, so assume 12 bits per second and you get the same size for 5 minutes.

    Modern compression algorithms are quite literally just magic at this point.

    edit2: FUCK! Forgot audio!

    So… 192khz * 32bits/8(bits per byte) = 768,000 bytes/sec * 300 (5 minutes) = 230,400,000, so 230MB, doesn’t really move the needle.