Hi Mike,

On Mon, Feb 23, 2009 at 9:53 PM, Mike Sullivan <[email protected]> wrote:
> I want to make a modified img2 format (or option to img2) to only save
> "keyframes" (the frames where the codec sends the whole frame, I think
> it is also called a B-Frame but I get confused about the terminology).

I-frame?

> The question is, how can I tell from an AVPacket if the current frame
> is a keyframe from the format_write_packet method?

Well, that depends entirely on your encoding settings. You should be
able to read that from the codec's
AVCodecContext->coded_frame->keyframe or pict_type.

Ronald
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