<div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>Your first attempt - iiuc - was not to use the skip_frame option for h264 and<br>
vc1 input but to re-implement it in your code (which is technically difficult or<br>
impossible because only while decoding can you decide what to drop).<br>
I suggest you use the option instead of re-implementing it but before you<br>
use it in your code, you could test with the command line interface (with<br>
"ffmpeg") if it does what you want. You could use an input file with similar<br>
properties than the one you will have in your application to test.<br>
<br>
Carl Eugen<br><br></blockquote><div>Ok, thanks. I'll let you know how I get on.</div><div> </div></div></div>