Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Blackmagic Design “Externally” encoding to Blackmagic MJPEG Codec?

  • “Externally” encoding to Blackmagic MJPEG Codec?

    Posted by Kylesway on October 10, 2007 at 10:16 am

    Hi all

    I do not have the Intensity yet, but am evaluating. To do
    so I donloaded and installed the Intensity drivers and
    BMD CoDecs.
    From my workflow, I’d like to transcode my existing .m2t
    files to the Blackmagic MJPEG CoDec to then work with them
    im Premiere Pro 2.
    However, the transcoding program I use (Procoder Express)
    does not show a specific Blackmagic MJPEG codec. The sole
    MJPEG CoDec it’s offering produces huge files (around 150MB/s)
    no matter which bitrate I set.
    Yet, if I import the same source file into PremierePro2, I can
    then export it into Blackmagic’s MJPEG CoDec (using the BMD
    exporter) and it yields the expected “small” file.

    What am I doing wrong here? Or is “externally” encoding not
    meant to work? Should I use another transcoder? (I’d need
    some sort of bach-like processing, preferrably including an
    option to rotate the image 180deg.)

    Thanks a lot for your help

    — Kyle

    Drew Mccoy replied 18 years, 5 months ago 4 Members · 6 Replies
  • 6 Replies
  • Deleted User

    October 12, 2007 at 12:02 am

    Hello,

    I am not sure Procoder will work properly with the Blackmagic codecs. You can also import the m2t files into After Effects and create a render cue lists to convert into the Blackmagic MJPEG. Also m2t files are not supported yet in Premiere pro so its hit and miss. Try converting them into Cineform, it’s a far superior compression then the MJPEG.

    Hope that helps?

  • Brett Howe

    October 12, 2007 at 1:14 am

    There are several issues with The Blacmagic MJEG codec.

    The Codec itself is excellent, but it will not work with much outside of Premiere and After Effects. I have also had issues with AE CS3 and writing BM MJPEG.

    I have the new Procoder 3, and still no BM MJPEG. Autodesk Cleaner will not work either.

    This is a frustrating issue, as we are currently constantly using work-arounds to deal with our media, which is a mixed bag of various HiDef formats.

    Please Black Magic, get it to work!

  • Kylesway

    October 12, 2007 at 4:33 am

    Hi all

    I have had a chat with Blackmagic Support.

    The issue with the MJPEG CoDec not being recognized correctly
    by at least some applications (specifically ProCoder) is a
    known issue and under investigation. They’ll let me know if
    there is another transcoding app that will work with it, and
    what the status is on a fix for the CoDec not being recognized
    properly.

    Leo: I know that the CineForm is (at least said to be) better
    than the BM-MJPEG. But so far it’s a software only solution
    that will not give me affordable preview to a “real” monitor.
    It can use one of the AJA cards but that’s an around USD 2000
    investment if I remember correctly. If CineForm/BM will make
    CineForm’s CoDec work w/ the Intensity, I’ll happily go that
    route. (I’ve read somewhere on the net that this is being
    considered.)

    As its stands now, BM-MJPEG to me is currently the most cost
    effective compromise between native HDV and an uncompressed
    workflow.

    BTW: HDV (m2t) in PremierePro2 works quite well – as long as
    the project remains small, there’s no need for “real” timeline
    preview, and you can stay inside of Premiere. As AE7 cannot
    (afaik) write “real” m2t, things get hairy if you need it.
    Maybe it will work better if you use DynamicLink, but that’s
    somewhat against my Workflow…

    I’ll try and remember keeping you posted. My current inclination
    is to go thru the ordeal of more or less manually transcoding
    my couple hundred clips in PPro or AE. The sped up workflow
    and most notably “real” timeline preview seem to make this
    worth the effort…

    Thanks a lot for your thoughts

    — Kyle

  • Deleted User

    October 12, 2007 at 11:17 am

    Hello Kyle,

    Yes, sadly the Multibridge etc does not support playout of the Cineform. I agree it is a huge incestment when I have a Multibridge and it works but not outputting Cineform etc.

    I think Intensity works with CIneform well, check out the Cineform website.

    – – – – – – – – –
    Leo Baker
    Post Production
    Sync Films
    United Kingdom
    http://www.syncfilms.com
    – – – – – – – – –

  • Kylesway

    November 2, 2007 at 12:17 pm

    Hi all

    as promised, here’s an update.

    – I went ahead and bought the Intensity Pro
    – I transcoded all my files using PremierePro2
    – Things are really stable (so far, have not yet
    had the time to do much editing)
    – HOWEVER: I only noticed after transcoding that
    PremierePro2 introduced nasty vertical dark/bright
    banding when scaling hdv (m2t) to the 1920 used
    by BMD. This is not immediately visible in most
    shots but pretty obvious in some.
    – WORKAROUND: Do the scaleup into the BMD-10bitHD
    Codec and then transcode (again) to BMD-MJPEG.
    Somewhat nasty but feasible. Is PProCS3 better
    at this? I read somewhere it’s fully higher color
    depth in CS3.
    – ODD: In After Effects 7, my exports from m2t to
    BMD-MJPEG screw up the timing (looks like the clip
    runs slightly slower). Have not yet found a workaround
    so far.

    But the hassles are worth having the “real” timeline
    preview to Video Projector.

    Hope this helps

    — Kyle

  • Drew Mccoy

    December 5, 2007 at 6:50 pm

    I am migrating my workflow to be based off an Intensity and I’m wanting to re-encode my clips to BMD-MJPEG.

    How did you go about encoding your files to BMD-MJPEG in Premiere Pro? I’m using PP CS3 and when I attempt to encode any of my clips (random assortment of H.264 .MOVs and Huffyuv .AVIs, all 720p 59.94fps) it gives me the following error:

    Error Compiling Movie.

    Codeccompression error.

    This codec may be unable to support the requested frame size, or there may be a hardware or memory problem.

    I’m using a project based off the BMD 8-bit 720p59.94fps preset, and I’m just going through the normal Export -> Movie route. Any suggestions?

We use anonymous cookies to give you the best experience we can.
Our Privacy policy | GDPR Policy