[x264-devel] regular intra period

[Jason Garrett-Glaser]

2009/3/9 Purvin Pandit <purvinp at hotmail.com>:
> Hi
>
> I would like to encode a sequence with regular intra period (say every 25
> frames). I tried using the -i option but that did not seem to work. I used
> -I option but I think this is generating IDR pictures. Can someone tell me
> if its possible to generate an AVC bitstream with regualr I period?
>
> Currently I am using the following command line:
>
> x264.exe --scenecut 0 -b 3 --no-b-adapt --b-pyramid -r 1 -i 25 --bitrate
> 30000 -p 1 --merange 64 -t 2 -v -o test_p1.264 input.yuv 1920x1080
>
> I wasnt sure how to disable scene cut so I use --scenecut 0. Is this
> conflicting with -i 25?

x264 will only generate non-IDR I-frames in the case that it detects a
scenecut but it has been less than --min-keyint since the previous
keyframe.  All non-scenecut I-frames are IDR.

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