[x264-devel] x264 CBR

[Jason Garrett-Glaser]

On Thu, Jul 15, 2010 at 8:11 AM, Andy Hunt <andy_hunt at hotmail.com> wrote:
> Hi,
>
> I have spent the last five or so hours searching the web and various forums to find out about x264 constant bitrate. I have read a lot of posts and some contradict others and this has left me totally confused and also with an unsure understanding of CBR.
>
> I am trying to create a low bitrate video file for hardware that requires CBR. What options need to be set to achieve CBR? Also just so you know I am trying to encode the files at 320x240 and lower and with a video bitrate of 50kpbs. The videos will also be muxed in MPEG2 transport stream (which adds an overhead), if you have any tips on how to minimise the TS overhead I would be most grateful. The videos have to have the smallest possible filesize because they are being sent over a high cost link.

CBR simply means that vbv-maxrate is equal to bitrate and that bufsize
is set to the appropriate value for the device.

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