FFmbc

[elmuz]

Hi all,
is there any way to get a Win32 compiled version of the last build? I mean "FFmbc-0.6-rc3"... I'd like to use the target "xdcamhd422"...
Alternatively could I use previous build expanding commandline condensed in that target?
Last... Is there any easy way to compile your own windows version starting from tar.gz file?
Thank you all

[poisondeathray]

not sure how to compile it , but you could use the commandline for 0.5

http://www.itbroadcastanddigitalcinema.com/ffmpeg_howto.html#Encoding_XDCAM-HD-50_FCP

it's mov wrapped intended for fcp , but you should be able to just change the last part (-f mov output.mov) to (output.mp4)

[elmuz]

I removed "-f mov" and set "export.mxf"...
It returns error... like "Unable to parse option value "'1*QP2LAMBDA'" ....invalid for option 'lmin'
I removed the '...' around 1*QP...MDA -> now goes ok for MOV wrapper. No way for MXF.... "only 48Khz is implemented"...
So I added "-ar 48000" but it returns "track 1: could not find essence container ul, codec not currently supported in container"
...anything wrong with "-acodec pcm_s16be"?

EDIT: with "-an" everything ok... obviously without audio track...

[poisondeathray]

why do you need xdcamhd ?

you could probably fudge some of the parameters (won't exactly match) , or use another format

[elmuz]

...we wanto to migrate to MXF. I suggested IMX for SD content, while XDCAM HD 422 for HD content. Adobe CS5 can handle them easily, but there are some little steps in workflow using ffmpeg-based script...
Would be probably enough looking for the right audio specifications...
I'd like to use parameter 'target' in ffmbc 0.6...

[poisondeathray]

try little endian

pcm_s16le

[elmuz]

this works... nice!

[poisondeathray]

don't rejoice yet... it might not be completely compatible

xdcamhd 422 (straight from the camera) uses big endian

so import some test footage and see if your NLE "sees" it properly

the ffmbc 0.6 is still in beta, so maybe it will be released soon (or maybe someone can compile it for you)

[Chris K]

There's a stripped-down download of 0.6 rc3 (last post in the thread below). It's only libav but that should be enough. This one accepts "-target xdcamhd422". Perhaps worth while to compare?

http://code.google.com/p/ffmbc/issues/detail?id=30

[elmuz]

I tried both methods and they seem very good...
I just tested importing them in Premiere and it is ok...

Only one thing yet... on the wiki they say... Note: XDCAM transfer supports no less than 2 mono tracks channels. Use -newaudio and -map_audio_channel.

Is there anything wrong with only one stereo track (PCM, 2 channels, 48kHz, 24bit)?

[Chris K]

I looked at the specs of a camera and a deck ...

http://pro.sony.com/bbsc/ssr/cat-broadcastcameras/cat-xdcam/product-PDWF335L/

http://pro.sony.com/bbsc/ssr/micro-xdcam/cat-videorecorders/product-PDWF1600/

I see only support for separate mono tracks up to eight. The camera audio seems to be ony 16 bit, the deck also supports 24 bit.

I guess that's why they wrote "Use -newaudio and -map_audio_channel". You probably have to encode L and R into two separate mono streams?

Is there anything wrong with only one stereo track (PCM, 2 channels, 48kHz, 24bit)

If Premiere accepts it and your goal is to finally render to something other than XDCAM, it shouldn't be a problem.

[elmuz]

I see only support for separate mono tracks up to eight. The camera audio seems to be ony 16 bit, the deck also supports 24 bit.

I couldn't find that thing of mono tracks...

If Premiere accepts it and your goal is to finally render to something other than XDCAM, it shouldn't be a problem.

Yeah it souldn't... even if our goal is storaging everything in a MAM, where all offices (graphics, video and so on are linked in)...anyway Premiere can import FFmbc encoded files but only exports XDCAM with eight different tracks (a L+R mixdown and other six muted tracks), even if you disable audio layers... as reported here.
Very strange, any MXF/XDCAM HD 422 expert?