Latest post Sun, Mar 17 2019 1:35 AM by pantau. 52 replies.
Page 1 of 4 (53 items) 1 2 3 4 Next >
Sort Posts: Previous Next
  • Sun, Jan 13 2019 6:07 PM

    • pantau
    • Top 500 Contributor
    • Joined on Mon, Oct 31 2005
    • Posts 230
    • Points 2,955

    Convert OMF to MXF without transcoding

    I have a bunch of old projects with OMF media files which can't be read by most other applications. Is it possible to convert them to MXF without transcoding? Consolidating doesn't do the job, even when media creation settings is set to MXF.

    Thanks!

    Win7 SP1 Avid 8.3.1 Quicktime 7.7.9 IBM Carbon X1 5th, 16GB RAM [view my complete system specs]
  • Mon, Jan 14 2019 9:41 PM In reply to

    • NYnutz
    • Top 500 Contributor
    • Joined on Wed, Nov 25 2009
    • New York City
    • Posts 349
    • Points 4,095

    Re: Convert OMF to MXF without transcoding

    what happens during the consolidation?

    Dave

    Post Production Infrastructure Engineer

    "A very big network"

     

  • Mon, Jan 14 2019 9:48 PM In reply to

    • DonE
    • Not Ranked
    • Joined on Tue, Aug 18 2009
    • California, USA
    • Posts 82
    • Points 990

    Re: Convert OMF to MXF without transcoding

    I think that Consolodate will create Same As Source media and Transcode will create the media that you choose. Why don't you want to transcode?

    1x AMC/Sy 8.2.11-Win7 Pro 64-HP z800-dual 6core-24GB-Quadro FX 4800-Nitris DX QT775 NV340.84** 3x AMC/Sy 8.2.11-Win7 Pro 64-HP xw8600-8GB-Quadro FX 3700... [view my complete system specs]
  • Mon, Jan 14 2019 10:00 PM In reply to

    Re: Convert OMF to MXF without transcoding

    Quite sure I have done this in the past, by consolidating master clips.

    Media Composer /w Symphony option | PT-HD | Win7Pro64 HP | OSX MBP | ISIS5000 | Nitris DX | Artist Mix & Transport & Color | AJA T-Tap | Decklink... [view my complete system specs]
  • Mon, Jan 14 2019 10:17 PM In reply to

    • DStone
    • Top 50 Contributor
    • Joined on Fri, Nov 4 2005
    • Massachusetts
    • Posts 3,545
    • Points 45,590
    • Moderator: Media Composer Getting Started

    Re: Convert OMF to MXF without transcoding

    What is the original media format for the video? For video, OMF is just a reference file. If the associated media isn't MXF then you should transcode (consolidating with a new format is the same as transcoding).

    DIY quad core I7-4790K, 32Gb, NVidia GTX 970 4GB, Win 10 Pro, MC(generally the latest or the one just before), MC 7.x [view my complete system specs]

    Dave S.

  • Mon, Jan 14 2019 11:01 PM In reply to

    Re: Convert OMF to MXF without transcoding

    DStone:
    For video, OMF is just a reference file.

    I beg to differ. Before MC Adrenaline, on Meridien and ABVB systems, Avid mediafiles were OMF Mediafiles. SD resolutions like 10:1, and 14:1p etc. existed both in OMF and in MXF containers.

    Media Composer /w Symphony option | PT-HD | Win7Pro64 HP | OSX MBP | ISIS5000 | Nitris DX | Artist Mix & Transport & Color | AJA T-Tap | Decklink... [view my complete system specs]
  • Tue, Jan 15 2019 1:59 AM In reply to

    • pantau
    • Top 500 Contributor
    • Joined on Mon, Oct 31 2005
    • Posts 230
    • Points 2,955

    Re: Convert OMF to MXF without transcoding

    The media is DV.

    Consolidating just leaves it OMF, as it was before.

    Transcoding makes no sense, as it would recompress it.

    Win7 SP1 Avid 8.3.1 Quicktime 7.7.9 IBM Carbon X1 5th, 16GB RAM [view my complete system specs]
  • Tue, Jan 15 2019 6:03 AM In reply to

    Re: Convert OMF to MXF without transcoding

    Are you consolidating the master clips or the sequence?

    Media Composer /w Symphony option | PT-HD | Win7Pro64 HP | OSX MBP | ISIS5000 | Nitris DX | Artist Mix & Transport & Color | AJA T-Tap | Decklink... [view my complete system specs]
  • Tue, Jan 15 2019 12:14 PM In reply to

    • luca.mg
    • Top 25 Contributor
    • Joined on Thu, Oct 13 2005
    • Roma - Italy
    • Posts 5,502
    • Points 64,525

    Re: Convert OMF to MXF without transcoding

    DV is 5:1, if You transcode to an higher MXF resolution there's no quality loss, in PAL land DNxHD 85 would suffice. You need to be in an HD project for MXF to succeed IIRC.

    Symphony 2018.9, BM Intensity Pro 4k, Windows 10, i7-5930K, 32 GB ram, Quadro K620 [view my complete system specs]

    peace luca

  • Tue, Jan 15 2019 3:10 PM In reply to

    • pantau
    • Top 500 Contributor
    • Joined on Mon, Oct 31 2005
    • Posts 230
    • Points 2,955

    Re: Convert OMF to MXF without transcoding

    Job ter Burg:

    Are you consolidating the master clips or the sequence?

    The sequence. It's the sequence I want to export as AAF.

    Win7 SP1 Avid 8.3.1 Quicktime 7.7.9 IBM Carbon X1 5th, 16GB RAM [view my complete system specs]
  • Tue, Jan 15 2019 3:12 PM In reply to

    • pantau
    • Top 500 Contributor
    • Joined on Mon, Oct 31 2005
    • Posts 230
    • Points 2,955

    Re: Convert OMF to MXF without transcoding

    luca.mg:

    DV is 5:1, if You transcode to an higher MXF resolution there's no quality loss, in PAL land DNxHD 85 would suffice. You need to be in an HD project for MXF to succeed IIRC.

    You're right of course, I'd just prefer not to have aditional media files of the same footage.

    Rewrapping OMF to .mov would probably also be an option, but I couldn't find any program that would do this.

    Win7 SP1 Avid 8.3.1 Quicktime 7.7.9 IBM Carbon X1 5th, 16GB RAM [view my complete system specs]
  • Tue, Jan 15 2019 4:02 PM In reply to

    • DStone
    • Top 50 Contributor
    • Joined on Fri, Nov 4 2005
    • Massachusetts
    • Posts 3,545
    • Points 45,590
    • Moderator: Media Composer Getting Started

    Re: Convert OMF to MXF without transcoding

    Job ter Burg:

    DStone:
    For video, OMF is just a reference file.

    I beg to differ. Before MC Adrenaline, on Meridien and ABVB systems, Avid mediafiles were OMF Mediafiles. SD resolutions like 10:1, and 14:1p etc. existed both in OMF and in MXF containers.

    That was a long time ago. Nowadays I only see it being used for embedded audio. Back when tape was the primary media source I know that you could embed the video. I also know that ProTools doesn't like video in an OMF, nor does anything else on the market use OMF for video, just audio.

    So it looks like the OP has embedded DV, Which means a transcode. If it's regular DV then transcoding to MXF at anything above 25Mbs wCPU cores limits for MCill be pretty much as close to a non-destructrive copy (DV is lossy, so there will always be a small amount of degradation). If it's DVCPro50 then anything above 50Mbs will work (as pointed out by luca).

    But the question remains why a consolidate to MXF didn't work?

    edit:

    pantau:
    Consolidating doesn't do the job, even when media creation settings is set to MXF.
    Or thinking about it in hindsight, maybe it did. If you consolidate an OMF using a different CODEC, does it create a new OMF with the new CODEC embedded?

    DIY quad core I7-4790K, 32Gb, NVidia GTX 970 4GB, Win 10 Pro, MC(generally the latest or the one just before), MC 7.x [view my complete system specs]

    Dave S.

  • Tue, Jan 15 2019 5:31 PM In reply to

    • DStone
    • Top 50 Contributor
    • Joined on Fri, Nov 4 2005
    • Massachusetts
    • Posts 3,545
    • Points 45,590
    • Moderator: Media Composer Getting Started

    Re: Convert OMF to MXF without transcoding

    And just to return to the original question, if it is raw DV in an OMF file, you can get it out using FFMPEG (or any of the HDCinematics app's which provide a front-end to FFMPEG). Just to get the video out with FFMPEG you can use something like:

    ffmpeg -i inputfilename.omf -c:v copy -c:a copy outputfile.dv

    This rewraps the audio and video back into a DV file. You can also try using outputfile.mov or -f mxf_opatom outputfile.mxf to wrap the DV into a .MOV or .MXF container, but I'm not sure how well that will work. This is very fast to try as it's a rewrap and not a transcode.

    You can download ffmpeg from https://www.ffmpeg.org/download.html.

    DIY quad core I7-4790K, 32Gb, NVidia GTX 970 4GB, Win 10 Pro, MC(generally the latest or the one just before), MC 7.x [view my complete system specs]

    Dave S.

  • Tue, Jan 15 2019 6:44 PM In reply to

    • luca.mg
    • Top 25 Contributor
    • Joined on Thu, Oct 13 2005
    • Roma - Italy
    • Posts 5,502
    • Points 64,525

    Re: Convert OMF to MXF without transcoding

    pantau:

    Job ter Burg:

    Are you consolidating the master clips or the sequence?

    The sequence. It's the sequence I want to export as AAF.

    You can't export AAF from an OMF based project, go to the Media creation settings and switch to MXF, export the sequence, no need to consolidate/transcode first, in the export settings choose "Consolidate media", in the "Transcode video to" dropdown menu pick Your favourite flavour of MXF, You can set the "Media destination" to wherever You like, that's the place where the newly created MXF files will land, and the AAF will point to.

    Symphony 2018.9, BM Intensity Pro 4k, Windows 10, i7-5930K, 32 GB ram, Quadro K620 [view my complete system specs]

    peace luca

  • Tue, Jan 15 2019 11:05 PM In reply to

    Re: Convert OMF to MXF without transcoding

    pantau:

    Rewrapping OMF to .mov would probably also be an option, but I couldn't find any program that would do this.

    A Same As Source Export would do that.

     

    Media Composer /w Symphony option | PT-HD | Win7Pro64 HP | OSX MBP | ISIS5000 | Nitris DX | Artist Mix & Transport & Color | AJA T-Tap | Decklink... [view my complete system specs]
Page 1 of 4 (53 items) 1 2 3 4 Next >

© Copyright 2011 Avid Technology, Inc.  Terms of Use |  Privacy Policy |  Site Map |  Find a Reseller