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MattG9173852
MattG9173852
Participant
February 29, 2024
Question

Lossless Export Impossible

  • February 29, 2024
  • 4 replies
  • 612 views

I've trying to make a lossless export of a video so that I can run a final compression encode later however, not matter what format or setup, my video is always blurred compared to the original video.

 

I've tried ProRes, DNxHR/DNxHD, image sequences such as TIFF, plugins where there are options for "lossless" exports like AfterCodecs, Voukoder, etc and EVERY TIME it comes out slightly blurry, there has to

be something I'm doing wrong.

 

I'm starting to go insane. Surely someone can tell me how to achieve this?

 

I have a small section of the frame here where it is the source:

 

And here is the issue I've seen on every single export I get:

 

 

    This topic has been closed for replies.

    4 replies

    MattG9173852
    MattG9173852Author
    Participant
    March 4, 2024

    I have given up on this project, I couldn't find any solution

    R Neil Haugen
    R Neil Haugen
    Legend
    February 29, 2024

    While Ann is as always correct, that's also a bit past what other profesisonals have shown and set for visually lossless productions. With decent settings, for instance, an intraframe like ProRes even down to 422 should be able to go ten or more generations without noticeable loss.

     

    Taking any middle or upper ProRes or DNx variant should not produce any visible losses in the first several generations. So ... something isn't going correctly in the export here.

    Everyone's mileage always varies ...
      Ann Bens
      Community Expert
      Ann BensCommunity Expert
      Community Expert
      February 29, 2024

      A real lossless file is huge and I mean huge (avi with no codec)

      Try Apple Prores 4444 (quicktime).

       

      Your color management might be a bit off.

        MattG9173852
        MattG9173852Author
        Participant
        March 1, 2024

        I have tried using QuickTime Apple ProRes 4444 and I still get the same blur, I've added the settings I used too:

         

        R Neil Haugen
        R Neil Haugen
        Legend
        February 29, 2024

        What codec is the original, and what framesize and framerate?

         

         What is your sequence framesize and framerate?

        Everyone's mileage always varies ...
        MattG9173852
        MattG9173852Author
        Participant
        February 29, 2024

        Here is a copy of the file info from potplayer my video player, I used ffmpeg to create a lossless video file which is this one that I am bringing into Premiere Pro:

        Format : MPEG-4
        Format profile : Base Media
        Codec ID : isom (isom/iso2/mp41)
        Frame rate : 23.976 FPS

        Video ID : 1
        Format : HEVC
        Format/Info : High Efficiency Video Coding
        Format profile : Main 10@L8.5@Main
        Codec ID : hev1
        Codec ID/Info : High Efficiency Video Coding
        Bit rate : 170 Mb/s
        Width : 1 920 pixels
        Height : 1 080 pixels
        Display aspect ratio : 16:9
        Frame rate mode : Constant
        Frame rate : 23.976 (24000/1001) FPS
        Color space : YUV
        Chroma subsampling : 4:2:0 (Type 0)
        Bit depth : 10 bits
        Scan type : Progressive
        Color range : Limited
        Matrix coefficients : BT.709
        Codec configuration box : hvcC

        Ann Bens
        Community Expert
        Ann BensCommunity Expert
        Community Expert
        February 29, 2024

        H.265 is nowhere lossless.

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