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Activity Forums Blackmagic Design Please help on codec / workflow

  • Please help on codec / workflow

    Posted by Autorecall2003@yahoo.co.uk on April 15, 2005 at 7:38 am

    Hi,

    Please help me deciding on codec on this film.

    Material (all pal) :
    30% mini DV shot in 16:9 mode.
    20% mini DV shot in 4:3 mode (framed 1:1,77)
    20% panasonic dvx100 25p in 4:3 mode (framed 1:1,77)
    30% super16 and telecined to Digibeta masked to 1:1,77.

    The output has to be on digibeta (I will rent the deck for the day) in 4:3 but masked to 1:1,77 (16:9). All mini DV has to be fieldoubled.

    I would like to preserve the quality as much as possible, but can FCP 4.5 manage different codecs in the same timeline or should I convert before editing? I will use a Lacie firewire 800 harddisk to work from. I’m thinking of using the DVCpro50 codec – what do u think?

    G5 dual 2,5
    4gigs ram
    Dell “24 ultrasharp 2405FPW
    FCP 4.5 prod suite
    Lacie 500gb firewire800
    Decklink HD Plus or Deklink extreme

    Thanks in advance.

    Adam Levine replied 21 years ago 3 Members · 13 Replies
  • 13 Replies
  • Adam Levine

    April 17, 2005 at 3:53 pm

    I would offline edit everything in DV codec to start — I’ve been using DVCam as an offline cassette format for some time now with great success. Put a label on all the S16 clips so you can identify them quickly. After you are done cutting, Media Manage the timeline and have it convert to 8-bit or 10-bit uncompressed. Then select all the S16 clips, make offline, then recapture from the D-Beta masters.

    As far as the different aspect ratios go, you will have to make a decision as to whether you want a 4:3 or 16:9 show. In any event, you will have to adjust the non-conforming clips to the proper aspect ratio

  • Autorecall2003@yahoo.co.uk

    April 17, 2005 at 6:44 pm

    Thanks Adam,

    My show is 4:3, but with black bars in 1:1,77 format. Will it be difficult adjusting 16:9 anamorphic material into 4:3?

    What about effects, filters, transitions and colorcorrections, will these still be the same after I convert to uncompressed? There must be a difference in quality when I apply a ex. diffusion effect, before or after turning uncompressed. When should I fielddouble the DV material – before or after turning uncompressed?

  • Adam Levine

    April 17, 2005 at 8:11 pm

    My show is 4:3, but with black bars in 1:1,77 format. Will it be difficult adjusting 16:9 anamorphic material into 4:3?

    So long as the anamorphic clips are identified as such (check the “Anamorphic” column in the browser), when you drop an anamorphic clip in a 4:3 timeline, FCP will automagically adjust the scale and aspect ratio so that it is inserted with a letterbox matte.

    What about effects, filters, transitions and colorcorrections, will these still be the same after I convert to uncompressed? There must be a difference in quality when I apply a ex. diffusion effect, before or after turning uncompressed.

    Use the traditional (i.e., pre-digital) online workflow — offline, online, color correct, fx. Translated to today’s tech: DV cuts and transitions (i.e., offline), do the media manager/recapture thing I mentioned previously (i.e. online). Then apply color and fx.

    When should I fielddouble the DV material – before or after turning uncompressed?

    I don’t understand what you mean. Are you refering to de-interlacing?

  • Autorecall2003@yahoo.co.uk

    April 18, 2005 at 6:16 am

    Thanks,

    Yes, I mean de-interlacing. When should / can I do that, before or after converting? Will I run into any other problems with the interlace/progressive thing : I have material in 25p, s16 telecined and DV that I want to de-interlace.

  • Adam Levine

    April 18, 2005 at 4:39 pm

    Do it after the “online”. Do not deinterlace the S16 footage

  • Autorecall2003@yahoo.co.uk

    April 18, 2005 at 7:47 pm

    Thanks Adam.

  • Luis Gonzalez

    April 25, 2005 at 7:59 pm

    Just a quick question regarding :

    “Use the traditional (i.e., pre-digital) online workflow — offline, online, color correct, fx. Translated to today’s tech: DV cuts and transitions (i.e., offline), do the media manager/recapture thing I mentioned previously (i.e. online). Then apply color and fx.”

    If I go from offline to online will I have to rerender all DV(offline) disolves and levels, and effects if they are already applied to a clip?

    Thanks.

    Luis

  • Adam Levine

    April 26, 2005 at 10:24 pm

    Yes, but you should only be doing cuts/transitions in the offline stage. Save the levels work for your online.

  • Luis Gonzalez

    April 26, 2005 at 10:43 pm

    Thanks for the info,

    So if I already have some effects on the clips, will they still be attached to the clip when i media manage the whole project, or do they disappear? If they are still attached to the clip does it keep the keyframes? Also, when I set up the online, should I media manage it choosing to recompress clips to uncompressed? What settings should I use for the online? Any help would be greatly appreciated. thanks,

    Luis

  • Adam Levine

    April 26, 2005 at 11:06 pm

    >So if I already have some effects on the clips, will they still be attached to the clip when i media manage the whole project, or do they disappear?

    They will remain with the same settings. However, if any of them are color related, I would redo settings.

    >If they are still attached to the clip does it keep the keyframes?

    Yes.

    >Also, when I set up the online, should I media manage it choosing to recompress clips to uncompressed?

    Yes. That or Online JPEG (I use a custome preset at 100% quality). Here’s a screenshot of my typical settings for anamorphic footage:

    https://www.squeezeanickel.com/fcp/fcp-screen-shot.jpg

    >What settings should I use for the online? Any help would be greatly appreciated.

    I find 8-bit uncompressed or JPEG at 100% best for DV footage. 10-bit doesn’t see to add anything (unless you are applying graphics, or lighting effects with strong gradients), and adds to render times and file size. I only use 10-bit for capturing DigiBeta source material. Also, FCP will adjust the frames size, adding 2 lines above and 4 lines below the 480 DV lines

    Also, something I left out:

    I always render a DV movie with TC burn and use this as an “offline cassette” to refer back in case anything went wrong (sometimes FCP screws up clips with speed fx, especially variable speed). In the new online timeline, I create a new, empty track at V1 and 2 new empty audio tracks at A1 and A2. Then I lay in the offline, matching my 2 pops and tail pops. That way, I can always check back to make sure everything is copasetic. Make sure you turn off these offline tracks before outputting to tape. Back in the day, we’d have a 3/4″ cassette layoff with TC burn from the Avid offline which we could use to check back against if there were any discrepancies in the EDL.

    >thanks,

    you’re welcome. pass on the good mojo

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