[Ffmpeg-devel] MPEG 2 Frame Control

Måns Rullgård mru
Mon Sep 18 23:27:31 CEST 2006

Brian Brice <bbrice at newtek.com> writes:

> Hello,
> I'm using the MPEG 2 encoder and I'm not quite sure if it's possible
> to gain more control over the types of frames produced.  For example,
> I have a GOP of 15 and have max_b_frames set to 2.  I expect the order
> of the frames to be IBBPBBPBBPBBPBB.  The groups are generally in this
> pattern, except for the FIRST group.  The first group starts as IPBBP...
> How can I control the order of the types of frames?  Is this a
> reasonable question about MPEG frame ordering or am I way off?  Thanks!

Try setting AVFrame.pict_type on the input to avcodec_encode_video().

M?ns Rullg?rd
mru at inprovide.com

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