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3:1 and 4:1 CinemaDNG compression options added to slimRAW

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  • 3:1 and 4:1 CinemaDNG compression options added to slimRAW

    slimRAW 1.4 has just been released and it adds 3:1 and 4:1 lossy CinemaDNG output to the previously available lossless compression. It is based on what Blackmagic cameras do (URSA and URSA Mini), but I believe the implementation in slimRAW is superior. Note that lossy CinemaDNG is currently only compatible with Davinci Resolve. Lossless CinemaDNG, on the other hand, is widely compatible.

    Obviously Pocket, Cinema Camera and the Production4K Camera are the main targets here, but you can feed in any standard CinemaDNG footage (uncompressed or losslessly compressed). For an example on what to expect sizewise: losslessly compressed footage from BM cameras will shrink down to around 50% when recompressed at 3:1 (ofc, more gains at 4:1). Also, it is pretty fast and designed to be practical for offload with on the fly compression.

    Free update as always, so do upgrade and feedback is welcome. Release notes are here: http://www.slimraw.com/relnotes.html


    edit july 2016:
    Current versions also include 5:1 and variable bitrate compression. See the thread for details.

    edit feb 2017:
    Current version includes 7:1 compression.
    Last edited by cpc; 02-23-2017, 07:33 AM. Reason: info added
    Shutter Angle: The science and magic of shooting moving pictures

  • #2
    Very nice, will recommend this to a couple of production houses.

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    • #3
      Thanks, stip!
      Shutter Angle: The science and magic of shooting moving pictures

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      • #4
        Going to update and try right now
        www.lightformfilm.com
        https://vimeo.com/suwanchote

        follow me on instagram @lightformfilm

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        • #5
          This is awesome! I've been using slimRaw since v1.1.... keep it up guys!
          http://www.somnangvann.com/
          https://vimeo.com/somnang

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          • #6
            I have a problem, Premiere Pro CC 2015 isn't recognizing the cdng files after I run it through v1.4. I get a "File Import Failure - Unsupported format or damaged file". It opens fine in Resolve, but Premiere isn't recognizing it at all. The original CDNG files open fine in Premiere, but after running through slimraw v1.4, I'm getting that import error.

            Am I doing something wrong?

            Below are my settings

            slimraw.jpg
            http://www.somnangvann.com/
            https://vimeo.com/somnang

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            • #7
              Originally posted by Somnang View Post
              I have a problem, Premiere Pro CC 2015 isn't recognizing the cdng files after I run it through v1.4. I get a "File Import Failure - Unsupported format or damaged file". It opens fine in Resolve, but Premiere isn't recognizing it at all. The original CDNG files open fine in Premiere, but after running through slimraw v1.4, I'm getting that import error.

              Am I doing something wrong?

              Below are my settings
              From the SlimRAW FAQ... hopefully this helps.

              Which video processing applications support lossily compressed CinemaDNG footage as output by slimRAW?
              Currently lossy CinemaDNG is supported by Blackmagic Design DaVinci Resolve.

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              • #8
                Originally posted by EYu View Post
                From the SlimRAW FAQ... hopefully this helps.

                Which video processing applications support lossily compressed CinemaDNG footage as output by slimRAW?
                Currently lossy CinemaDNG is supported by Blackmagic Design DaVinci Resolve.

                Thank you, but it's odd... the previous slimRaw (version 1.3) worked with Premiere. I went through some of my archived CDNG files that I processed with v1.3 and they imported fine.

                Can it be that I'm compressing an already compressed file that's causing the issue? Like CDNG --> slimraw v1.3 --> slimraw v1.4?
                http://www.somnangvann.com/
                https://vimeo.com/somnang

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                • #9
                  Originally posted by Somnang View Post
                  I have a problem, Premiere Pro CC 2015 isn't recognizing the cdng files after I run it through v1.4. I get a "File Import Failure - Unsupported format or damaged file". It opens fine in Resolve, but Premiere isn't recognizing it at all. The original CDNG files open fine in Premiere, but after running through slimraw v1.4, I'm getting that import error.

                  Am I doing something wrong?

                  Below are my settings

                  [ATTACH=CONFIG]16852[/ATTACH]

                  The Lossy Format is only supported in Resolve as of now. For premiere you can only do the lossless compression.

                  Comment


                  • #10
                    Originally posted by Zolac View Post
                    The Lossy Format is only supported in Resolve as of now. For premiere you can only do the lossless compression.
                    Ahhhh okay, thank you for the clarification
                    http://www.somnangvann.com/
                    https://vimeo.com/somnang

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                    • #11
                      As pointed by EYu and Zolac (thx, guys!), the only video app that supports lossy CinemaDNG at the moment is Resolve. Note that (unlike lossless CinemaDNG) lossy CinemaDNG is not in the CinemaDNG standard, it is essentially a Blackmagic extension. Since URSA and URSA Mini do record lossy CinemaDNG, it is reasonable to expect support for it will appear at some time in Premiere and other software. But if and when - only Adobe people will know.

                      (I also edited the opening post and put the text about compatibility in bold; hope it is more easily noticeable now. )
                      Shutter Angle: The science and magic of shooting moving pictures

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                      • #12
                        Originally posted by cpc View Post
                        As pointed by EYu and Zolac (thx, guys!), the only video app that supports lossy CinemaDNG at the moment is Resolve. Note that (unlike lossless CinemaDNG) lossy CinemaDNG is not in the CinemaDNG standard, it is essentially a Blackmagic extension. Since URSA and URSA Mini do record lossy CinemaDNG, it is reasonable to expect support for it will appear at some time in Premiere and other software. But if and when - only Adobe people will know.

                        (I also edited the opening post and put the text about compatibility in bold; hope it is more easily noticeable now. )
                        Thanks for the explanation!

                        Hopefully the implementation will come soon. In the mean time, I'll run all my archived CDNG via slimRaw v1.4. Going to free up more space
                        http://www.somnangvann.com/
                        https://vimeo.com/somnang

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                        • #13
                          New free update (1.5) of slimRAW is now out, with support for lossy CinemaDNG to lossless CinemaDNG transcoding. It allows import of 3:1/4:1 raw from the Blackmagic Micro, Ursa and Ursa Mini cameras in any video app compatible with lossless CinemaDNG (Premiere, ACR, etc). slimRAW's own lossy output can also be reencoded to lossless if need be. The conversion will obviously increase filesize.

                          And there are a few other additions and improvements, listed here as always: http://www.slimraw.com/relnotes.html
                          Shutter Angle: The science and magic of shooting moving pictures

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                          • #14
                            And the latest update v1.6 is now released. It adds 4 new compression modes, including 5:1 compression and two variable bit rate compression modes. The VBR modes will typically compress to 3:1~4:1 and 4:1~6:1 respectedly (but the second may go as high as 8:1 depending on image content, especially on some Ursa Mini 4.6K footage, mainly due to 4.6K resolution and curve specifics).
                            A little write-up on the compression modes here: http://www.slimraw.com/article-cdngmodes.html
                            Shutter Angle: The science and magic of shooting moving pictures

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                            • #15
                              Since I'm almost always shooting (uncompressed) raw,
                              I'm using SlimRaw on most of my projects, for downloading and on the fly compression on set.
                              Works like a charm, and getting better and better with every update - great work Mihail.
                              Blog: http://frankglencairn.wordpress.com/

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