Latest post Fri, Sep 9 2011 4:33 PM by mtahir. 9 replies.
Page 1 of 1 (10 items)
Sort Posts: Previous Next
  • Wed, Jun 1 2011 12:10 PM

    • pdt2
    • Not Ranked
    • Joined on Wed, Jun 1 2011
    • Posts 5
    • Points 75

    Import AVCHD file size limits?

    Importing AVCHD file. Import will begin and almost finish then freezes.  Is there a 2 GB size limit on file size to import?  If so, is there a work around this?

  • Wed, Jun 1 2011 12:43 PM In reply to

    Re: Import AVCHD file size limits?

    Hi,

    pdt2:
    Is there a 2 GB size limit on file size to import?

    No, there's not.  However, if your AVCHD clips are spanned across multiple files they will not import because Media Composer doesn't support spanned clips.  If you search the forum from the last 30 days for "AVCHD" you'll find a lot of posts about how to import AVCHD clips.

    ciao,
    Carl 

    Media Composer 2018.9 w/Symphony/SS/PF options, HP Envy 17t-j100 Quad Edition laptop, Windows 10 Pro, Intel Core i7 2.4GHz, 16 GB RAM, nVidia GeForce GT... [view my complete system specs]

    "There is hardly anything in the world that some man cannot make a little worse and sell a little cheaper, and the people who only consider the price are this man's lawful prey."  - John Ruskin (1819-1900)

     

    Carl Amoscato | Freelance Film & Video Editor | London, UK

  • Wed, Jun 1 2011 1:40 PM In reply to

    • mtahir
    • Top 500 Contributor
    • Joined on Thu, Oct 13 2005
    • UK
    • Posts 479
    • Points 5,850

    Re: Import AVCHD file size limits?

    Do the following:

    1. Get this softare and put it in the directory with your MTS files: FFMBC-0.6-RC3 binary here.

    2. Create a .bat file, put the line below in the file, and put it in the same directory as (1):

    for %%a in ("*.mts") do ffmbc -threads 8 -i "%%a" -vcodec dnxhd -acodec pcm_s16le -flags +ildct -b 120M "%%~na.mov"

    3. Open a CMD window, navigate to the directory in (1) and run the batch file. This will pick-up all your MTS files and convert them to DNxHD120 8-bit with PCM audio, 48KHz, Stereo, 1536kb/s.

    In my case, the MTS files were 1920x1080/50i. The "-b 120M" is the bit rate. The "+ildct" is the interlace flag. Eeach 2GB file (I think it was around 17Mbps), which is around 15m30s, took about 30 minutes to convert to MOV files. FFMBC was processing at around 11-13fps. It's a case of just leaving it running overnight if you have many files. It doesn't take much CPU power to do this.

    With a 2GB MTS file (assuming 1920x1080/50i), the resulting MOV file is around 14GB. On my set-up, it would take about 30 to 50 minutes to import each file into MC5. It would first convert the audio and then a box would appear saying it was doing a fast import.

    I hope that helps.

    Mohammed

    MC2018.1 (Win7) | Dell T7500 with 2 x 6-Core Intel Xeon X5690 3.46GHz CPUs | Triple-Channel 64GB (32GB per CPU) 1333MHz DDR3 EEC FBDIMM | 3GB nVidia Quadro... [view my complete system specs]
    Filed under: , , , , , ,
  • Wed, Sep 7 2011 10:21 AM In reply to

    • BenoitM
    • Top 100 Contributor
    • Joined on Fri, Nov 4 2005
    • Brussels, Belgium
    • Posts 1,151
    • Points 13,870

    Re: Import AVCHD file size limits?

    Hi

    On a "old" Intel Core2Quad (Q6700) CPU and Win7/64, I noticed that FFMBC conversion with the above command line is not using all the CPU cores at max. (see the text in the CMD console when FFMBC is launched "Cannot parallelize deblocking type 1, decoding such frames in sequential order"); typically, I get about 11~12 fps conversion rate and 30 % CPU usage in this scenario.

    So I tried to run two CMD processes in parallel, each one running a separate FFMBC conversion (with "-threads 2"). When outputting the encoded result (mov files) to a decently fast disk, I nearly double the total conversion framerate (each conversion process gets about 10 fps, so nearly 20 fps total, and 60% CPU utilization Big Smile ).

    So, to significantly increase your AVCHD conversion rate using FFMBC, don't hesitate to run several instances in parallel (use Windows Task manager and/or Resource Monitor to find what works best for your system) !

    MC 2018.9 (Symphony option)/BCC 10.0.5/RED 5.6; BlackMagic Ultrastudio Mini Monitor (10.11.2.0); DELL Precision 5530 - Intel Core i7-8850H 2.6 GHz - 32... [view my complete system specs]
  • Thu, Sep 8 2011 3:00 PM In reply to

    • bushfilm
    • Top 200 Contributor
    • Joined on Thu, Oct 13 2005
    • Baton Rouge, LA
    • Posts 536
    • Points 7,220

    Re: Import AVCHD file size limits?

    This FFMBC conversion seems pretty tricky and I am not much of a computer whiz. Is there a simpler alternative? I do like the idea of converting to the Avid codec and time is not a big issue. Thanks in advance for your help.

  • Fri, Sep 9 2011 8:45 AM In reply to

    • BenoitM
    • Top 100 Contributor
    • Joined on Fri, Nov 4 2005
    • Brussels, Belgium
    • Posts 1,151
    • Points 13,870

    Re: Import AVCHD file size limits?

    mtahir:
    1. Get this softare and put it in the directory with your MTS files: FFMBC-0.6-RC3 binary here.

    I haven't been able to find the Windows binaries for FFMBC 0.6 or 0.6.1 (http://code.google.com/p/ffmbc/).

    Have you ?

    (I'm still using 0.5, but some fixes in 0.6 seem interesting)

    MC 2018.9 (Symphony option)/BCC 10.0.5/RED 5.6; BlackMagic Ultrastudio Mini Monitor (10.11.2.0); DELL Precision 5530 - Intel Core i7-8850H 2.6 GHz - 32... [view my complete system specs]
  • Fri, Sep 9 2011 2:59 PM In reply to

    • mtahir
    • Top 500 Contributor
    • Joined on Thu, Oct 13 2005
    • UK
    • Posts 479
    • Points 5,850

    Re: Import AVCHD file size limits?

    Hi BenoitM

    Try this zip file (0.6 version).  I've uploaded it into my Avid user area. Let me know if you can't access the file.

    I primarily used this for spanned mts files. Depending on what camera I'm using, I tend to have smaller mts files which I import directly. I did find recently that using FFMBC (not spanned files) produced some files that wouldn't import into MC5 and I would get an error. I'm not sure what that error was now but direct import into MC5 seemed to work fine. The files that wouldn't import into MC5.0.4 all worked fine in various players.

    Regards

    Mohammed

    PS. I updated the broken link in my original post to point to the file in my Avid user area.

    MC2018.1 (Win7) | Dell T7500 with 2 x 6-Core Intel Xeon X5690 3.46GHz CPUs | Triple-Channel 64GB (32GB per CPU) 1333MHz DDR3 EEC FBDIMM | 3GB nVidia Quadro... [view my complete system specs]
  • Fri, Sep 9 2011 3:16 PM In reply to

    • mtahir
    • Top 500 Contributor
    • Joined on Thu, Oct 13 2005
    • UK
    • Posts 479
    • Points 5,850

    Re: Import AVCHD file size limits?

    bushfilm:

    This FFMBC conversion seems pretty tricky and I am not much of a computer whiz. Is there a simpler alternative? I do like the idea of converting to the Avid codec and time is not a big issue. Thanks in advance for your help.



    It's not that tricky... just download the zip file, unzip it into an empty directory, put yout mts files in there too, open a Windows command box (click on Windows Start menu, type cmd in the box), navigate to the directory, and type in the name of the .bat file. This will give you DNxHD120 8-Bit files with PCM audio, 48KHz, Stereo, 1536kb/s. If you run into any issues, you can try posting in the developers forum here. They're very good in responding. We'll try to help as best we can. I don't use it much but it was a bit of a 'get out of jail' card when I needed it. :)

    Regards

    Mohammed

     

    MC2018.1 (Win7) | Dell T7500 with 2 x 6-Core Intel Xeon X5690 3.46GHz CPUs | Triple-Channel 64GB (32GB per CPU) 1333MHz DDR3 EEC FBDIMM | 3GB nVidia Quadro... [view my complete system specs]
  • Fri, Sep 9 2011 3:39 PM In reply to

    • BenoitM
    • Top 100 Contributor
    • Joined on Fri, Nov 4 2005
    • Brussels, Belgium
    • Posts 1,151
    • Points 13,870

    Re: Import AVCHD file size limits?

    mtahir:
    Try this zip file (0.6 version).

    Is is a 0.6 Beta or RC or a full release ?

    Did you compile it yourself ?

    MC 2018.9 (Symphony option)/BCC 10.0.5/RED 5.6; BlackMagic Ultrastudio Mini Monitor (10.11.2.0); DELL Precision 5530 - Intel Core i7-8850H 2.6 GHz - 32... [view my complete system specs]
  • Fri, Sep 9 2011 4:33 PM In reply to

    • mtahir
    • Top 500 Contributor
    • Joined on Thu, Oct 13 2005
    • UK
    • Posts 479
    • Points 5,850

    Re: Import AVCHD file size limits?

    It's 0.6-rc3 from what I can tell when I call up the exe. I didn't compile it.

    MC2018.1 (Win7) | Dell T7500 with 2 x 6-Core Intel Xeon X5690 3.46GHz CPUs | Triple-Channel 64GB (32GB per CPU) 1333MHz DDR3 EEC FBDIMM | 3GB nVidia Quadro... [view my complete system specs]
Page 1 of 1 (10 items)

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