Forum Replies Created

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  • Michael Magallon

    April 23, 2009 at 12:56 am in reply to: MPEG2 Muxed

    Are you by chance using SkyMicro?

    What I would recommend:
    Take the SD HD/SDI output from the back of the SkyMicro, use a capture card such as BlackMagic, AJA or Matrox MXO2 (recommended to keep CC’s) and capture to whatever CODEC you want in your FCP! I would recommend ProRes.

    This way, the baseband output will be on any batch bay, video router.

    Would that be an option?


    MM

  • Aye, you don’t have to recapture all your material.

    If you want to change the interlaced/progressive flag, you can do it using Dumpster. It will be instantaneous and you wont have to render in FCP.

    However, use at your own risk. Just look for the following Atom:
    ‘trak’ > ‘mdia’ > ‘mdhd’ > ‘vmhd’ > ‘stbl’ > ‘stsd’ > ‘fiel’
    Fields = 1
    Details = 0

    The above values will provide a progressive flag in the QT file.

    Once again, try it out on a short clip first. I am not responsible if something goes wrong :S


    MM

  • Well there is nothing currently outside a Mac that will encode to ProRes (HQ).

    As far as what is faster to transcode, I would say QMaster. Other than that, even QT export out is fast. Beside that, nothing is really faster.

    Good Luck!


    MM

  • Michael Magallon

    April 22, 2009 at 11:52 pm in reply to: MPEG2 Muxed

    Hey Jeremy,

    What ingest/playback solution do you use, PathFire, Vela?

    The reason why you are seeing the white screen from your file in QT player is that although MPEG2 is a CODEC that it can see, it will not see 422p, where the chroma sub-sampling is 4:2:2, not 4:2:0 or lower. Saying that you are using broadcast equipment, I am sure that it is outputting 4:2:2, Transport Streams.

    VLC player will playback most profile and levels in the MPEG2 specification, that’s why you can see your files. MPEG STREAM Clip works of the QT components, that why you can’t see the file in MSC, because of QT.

    The no audio is interesting however. More than likely, they will be outputting M1L2 audio, usually at 384kbps. Please verify that you are not outputting SMPTE 302 audio, as this will open a whole other can of worms!

    What ultimately do you want to do with the files? Transcode them to play online? edit them? store them?

    You will definitely need to transcode them. The bad news is that there is currently no Mac solution to transcode 422p@any level MPEG2 Transport Streams to QT files.

    We use PC solutions for this.

    Anyway, let me know of your workflow and I can probably help.


    MM

  • Michael Magallon

    April 22, 2009 at 8:11 am in reply to: FCP Export to QT no timecode?

    When you export your QuickTime file, if the name of your file long? Longer than, say 10 characters?

    I experience no time code when I name the file that i am exporting long. One of the characteristics is if my output file has something like: testclip#56.mov, where my original file name would be:
    testclip_4x3_133_SD525_EN20.mov

    What i usually do is just give my file a VERY short name for the actual export and rename it to whatever I want once it is completed.

    Maybe this is your problem?


    MM

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