On Tue, 7 Mar 2006 19:17:28 -0800 (PST) yj <yunjnz at yahoo.com> wrote: > such as, I want to extract I frames or I/P frames in > MPEG2 TS stream. > Thank you. You may be able to use: -vc ffmpeg12 -lavdopts skipframe=nonkey That should just give you the I-frames. No idea how to extract JUST the P-frames.