[x264-devel] Constatnt Bitrate

Azadeh Rasouli azadeh.rasouli at gmail.com
Thu Mar 15 12:22:41 CET 2007


Hi everybody,

 Can anyone tell me how I can have a constant bit-rate when I'm using
x.264for coding? when I use
x.264's option (e.g. -B 400)  for running, bitrate is increased a lot (more
than the time when the target bitrate is not specified) and it's a lot more
than the bit-rate that I want to have.

I typed :

    ./x264 -v --b-rdo -t 2  -r 3 --frames 3 foreman.yuv -o
output.x264176x144  -------> result :
372.73 kb/s
   ./x264 -v --b-rdo -t 2 -B 400 -r 3 --frames 3 foreman.yuv -o
output.x264176x144 -----> result :
469.07 kb/s


Thanks for your help in advance.

Regards,
Azadeh
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