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  1. Originally Posted by sum_guy View Post
    The problem I'm running into is in actually downloading an 8k video. Yes, I can play them on Youtube but they are downsampled, if I try to download them they are downsampled.
    Use youtube-dl or yt-dlp:
    Code:
    yt-dlp -f 702+251 https://www.youtube.com/watch?v=eTtBDJn1Lqg
    That will get you a 675 MB MKV file with 7680x4320 29.97 fps AV1 video and Opus audio.
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    Thank you Jagabo for the insight to download it!

    Mediainfo reports it as 8K resolution, I'm on Windows 11 and used the stock microsoft video player with the free VC1 Codec. I am able to play it. Is it downsampled on my display? I'm certain it is as my display is 1920x1080 on this display but, it plays.

    I cut the file down to roughly 160 mb, I realize most of you don't have the bandwidth for that but, here is a link to it VH

    https://files.videohelp.com/u/84671/Shot%20on%20Nikon%20Z9__65372_%208K%20HDR%20_eTtBD..._.f702.mp4.mkv

    I was able to cut the actual file size down to a more manageable sample size. Here is the mediainfo:
    General
    Complete name : Shot on Nikon Z9| 8K HDR General
    Complete name : Shot on Nikon Z9| 8K HDR [eTtBDJn1Lqg].f702.mp4.mkv

    Format : dash
    Codec ID : dash (iso6/av01/mp41)
    File size : 141 MiB
    Duration : 26 s 226 ms
    Overall bit rate : 45.2 Mb/s
    Encoded date : UTC 2021-10-28 22:21:15
    Tagged date : UTC 2021-10-28 22:21:15
    IsTruncated : Yes

    Video
    ID : 1
    Format : AV1
    Format/Info : AOMedia Video 1
    Format profile : Main@L6.0
    HDR format : SMPTE ST 2086, HDR10 compatible
    Codec ID : av01
    Duration : 26 s 226 ms
    Bit rate : 51.4 Mb/s
    Width : 7 680 pixels
    Height : 4 320 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Constant
    Frame rate : 29.970 (30000/1001) FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 10 bits
    Bits/(Pixel*Frame) : 0.052
    Stream size : 161 MiB
    Title : ISO Media file
    Encoded date : UTC 2021-10-28 22:21:15
    Tagged date : UTC 2021-10-28 22:21:15
    Color range : Limited
    Color primaries : BT.2020
    Transfer characteristics : HLG
    Matrix coefficients : BT.2020 non-constant
    Mastering display color primaries : Display P3
    Mastering display luminance : min: 0.0050 cd/m2, max: 1000 cd/m2
    Codec configuration box : av1C
    It's not important the problem be solved, only that the blame for the mistake is assigned correctly
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    I used FireDM to download this: https://www.youtube.com/watch?v=eTtBDJn1Lqg as an mp4. I tried playing it on my HTPC using a Comet Lake i5 10400 processor with Intel UHD 630 graphics and 16GB RAM. The TV is an old 720p model so the video was downscaled. I used the Window 10 Movies and TV App with the free AV1 Codec. The file did play but not at all well. The video froze and I only saw a couple of scenes. I think my new Tiger Lake laptop which supports AV1 decoding via QSV will do better but I won't have it until after Christmas.

    General
    Complete name : C:\Shot on Nikon Z9| 8K HDR.mp4
    Format : MPEG-4
    Format profile : Base Media
    Codec ID : isom (isom/iso2/mp41)
    File size : 659 MiB
    Duration : 2 min 7 s
    Overall bit rate : 43.4 Mb/s
    Writing application : Lavf58.35.104

    Video
    ID : 1
    Format : AV1
    Format/Info : AOMedia Video 1
    Format profile : Main@L6.0
    Codec ID : av01
    Duration : 2 min 7 s
    Bit rate : 43.3 Mb/s
    Width : 7 680 pixels
    Height : 4 320 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Constant
    Frame rate : 29.970 (30000/1001) FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 10 bits
    Bits/(Pixel*Frame) : 0.044
    Stream size : 657 MiB (100%)
    Title : ISO Media file produced by Google Inc.
    Color range : Limited
    Color primaries : BT.2020
    Transfer characteristics : HLG
    Matrix coefficients : BT.2020 non-constant
    Codec configuration box : av1C

    Audio
    ID : 2
    Format : AAC LC
    Format/Info : Advanced Audio Codec Low Complexity
    Codec ID : mp4a-40-2
    Duration : 2 min 7 s
    Bit rate mode : Constant
    Bit rate : 128 kb/s
    Channel(s) : 2 channels
    Channel layout : L R
    Sampling rate : 44.1 kHz
    Frame rate : 43.066 FPS (1024 SPF)
    Compression mode : Lossy
    Stream size : 1.94 MiB (0%)
    Title : ISO Media file produced by Google Inc.
    Default : Yes
    Alternate group : 1
    Last edited by usually_quiet; 26th Nov 2021 at 11:48. Reason: typed wrong codec
    Ignore list: hello_hello, tried, TechLord, Snoopy329
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    It will take a lot of computer horsepower and internet bandwidth before 8K goes mainstream online. I'm assuming and maybe I'm wrong, that 8K tv's are all upscaling from 4K UHD? I'm on a powerful workstation at work which barely played the 26 second clip.
    It's not important the problem be solved, only that the blame for the mistake is assigned correctly
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    Originally Posted by sum_guy View Post
    It will take a lot of computer horsepower and internet bandwidth before 8K goes mainstream online. I'm assuming and maybe I'm wrong, that 8K tv's are all upscaling from 4K UHD? I'm on a powerful workstation at work which barely played the 26 second clip.
    At present, I think you are correct for all practical purposes unless one is living in Japan. (NHK is supposed to offer 8K streaming in Japan but that requires an 80 Mbps broadband Internet connection.)

    I have not heard of any US commercial streaming service offering real 8K video and UHD Blu-ray offers only up to 4K. The only 8K sources I have seen for the USA are YouTube, demo video sites, and select high-end cameras.
    Ignore list: hello_hello, tried, TechLord, Snoopy329
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    Well, I started with VHS, Moved to VCD, to DVD's, to BR's, and now to USB and external NAS drives and streaming and casting media to my TV's. It's only a matter of time before 4K becomes widely available and after that 8K. It's not quite as predictive as Moore's Law but, headed that way. When I was watching VHS I never dreamed that one day I would be able to stream a movie to a TV from a computer, yet here we are. It's only a matter of when, not if.
    It's not important the problem be solved, only that the blame for the mistake is assigned correctly
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    Originally Posted by kameralover View Post
    Originally Posted by sum_guy View Post
    Some of the best minds (myself excluded) here on Videohelp have already explained, it won't play it. Time to bury the thread.
    It's funny you should say that. I actually found a way to make the NVIDIA my primary GPU processor and now my laptop plays 4k 60FPS smoothly!

    I realized NVIDIA wasn't being used before and I changed that.

    Image
    [Attachment 61986 - Click to enlarge]
    So, what did you do to use your Geforce 460M for decoding and what kind of 4K video are we talking about?

    If you are playing 4K AVC/H.264 with your Geforce 460M, it does have built-in decoding for AVC/H.264. It doesn't have built-in HEVC/H.265 decoding or VP9 decoding.
    Ignore list: hello_hello, tried, TechLord, Snoopy329
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    Originally Posted by sum_guy View Post
    Well, I started with VHS, Moved to VCD, to DVD's, to BR's, and now to USB and external NAS drives and streaming and casting media to my TV's. It's only a matter of time before 4K becomes widely available and after that 8K. It's not quite as predictive as Moore's Law but, headed that way. When I was watching VHS I never dreamed that one day I would be able to stream a movie to a TV from a computer, yet here we are. It's only a matter of when, not if.
    4K is enough resolution for me. I doubt that I would ever want a TV that is big enough to benefit from 8K. 8K is best reserved for movie theaters and billboard-sized TVs in public spaces.
    Ignore list: hello_hello, tried, TechLord, Snoopy329
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