Uncompres MXF OP1A or Lossless j2k with MXF wrapper

Questions and answers on how to get the most out of FFAStrans
vijm1972
Posts: 128
Joined: Fri Apr 24, 2015 7:35 am

Re: Uncompres MXF OP1A or Lossless j2k with MXF wrapper

Post by vijm1972 » Thu Mar 31, 2016 2:06 pm

Hi Steipal,

I am using below commands.


1) To create RAW using custom FFMPEG

"%s_job_work%\%s_original_name%.wav" -f rawvideo -vcodec v210 -pix_fmt uyvy422 -s 720x576


2) To create RAW2BMX (This will create separate audio streams as per source along with video)

%ComSpec% /c ""%s_ffastrans_dir%\Processors\mxf_tools\raw2bmx.exe" -o "C:\RAW2MXF\%s_original_name%.mxf" -a 4:3 -c 10 --unc "%s_source%" --wave "%s_job_work%\%s_original_name%.wav""


3) To create bmxtranswrap output (re-map all the streams to one audio stream), we need to add bmxtranswrap.exe to FFAStrans\Processors\mxf_tools folder.

%ComSpec% /c ""%s_ffastrans_dir%\Processors\mxf_tools\bmxtranswrap.exe" -o "C:\Final_Out\%s_original_name%.mxf" --track-map singlemca "C:\RAW2MXF\%s_original_name%.mxf""

I have created workflow as per below.
SD_MXF to Uncompressed_SD_MXF.jpg
SD_MXF to Uncompressed_SD_MXF.jpg (32.46 KiB) Viewed 2893 times
We don't have to specify source audio tracks.

Thanks
Vijay

admin
Site Admin
Posts: 1371
Joined: Sat Feb 08, 2014 10:39 pm

Re: Uncompres MXF OP1A or Lossless j2k with MXF wrapper

Post by admin » Fri Apr 01, 2016 6:51 am

Unless there is something left out in your post, I don't see how this workflow can work with multiple audio streams from your source. But maybe your source only have one audio stream with multiple channels?

-steipal

vijm1972
Posts: 128
Joined: Fri Apr 24, 2015 7:35 am

Re: Uncompres MXF OP1A or Lossless j2k with MXF wrapper

Post by vijm1972 » Fri Apr 01, 2016 1:42 pm

Yes my source file is having 1 audio stream with 4 channels.
Thanks for your help.

Vijay

philthewiz
Posts: 14
Joined: Thu Mar 14, 2019 9:25 pm

Re: Uncompres MXF OP1A or Lossless j2k with MXF wrapper

Post by philthewiz » Tue Apr 09, 2019 6:57 pm

Hi everyone!

This looks very interesting! I was wondering if there is still a raw2bmx.exe file you could provide since I'm not familiar with Visual Studio and all the compiling part. It would be appreciated :D I think that it's not included in the original package of FFAStrans. Let me know if that's possible. Thank you !

emcodem
Posts: 509
Joined: Wed Sep 19, 2018 8:11 am

Re: Uncompres MXF OP1A or Lossless j2k with MXF wrapper

Post by emcodem » Wed Apr 10, 2019 7:04 am

Hey Phil,

why not use the pre-built binaries that the BBC guys provide?
https://sourceforge.net/projects/bmxlib/

cheers!

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