[FFmpeg-user] XDCAM HD 1080i60 35mb/s VBR

[betonpfeiler]

On 02/01/2012 11:03 PM, Mark Richards wrote:
> Is it possible to create a "XDCAM HD 1080i60 35mb/s VBR" file using ffmpeg ?
> If so, what would the parameters be?  I've tried searching on line for an
> answer, but can't find one.
>
> Thanks,
> Mark
>

Hello,

as far as I know, XDCAM is always CBR... You can use FFMBC for this, a 
possible command line could be:

ffmpeg -i <input_file> -pix_fmt yuv422p -vcodec mpeg2video -flags 
+ildct+ilme -top 1 -dc 10 -flags2 +ivlc+non_linear_q -qmin 1 -lmin 
'1*QP2LAMBDA' -vtag xd5c -rc_max_vbv_use 1 -rc_min_vbv_use 1 -b 50000k 
-minrate 50000k -maxrate 50000k -bufsize 36408333 -bf 2 -aspect 16:9 
-acodec pcm_s16be -f mov output.mov -newaudio

You have to change the Bitrate from 50000k to 35000k
and maybe some mapping for the 8 audiochannels

see here for more ffmbc stuff: 
http://www.itbroadcastanddigitalcinema.com/ffmpeg_howto.html#Encoding_XDCAM-HD-50_FCP

Greetings,
J