<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><div style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;"><div>I have a problem achieving consistent results when rendering with ffmpeg/ogg format - the bitrate of resulting video is always unpredictable: <br></div><div><br></div><div>Example,<br></div><div>set bitrate to 9000000 and result is blotchy, from good 20mbps source; <br></div><div>set q=8 resulting bitrate varies each time Cin is started, can be very high, <br></div><div>set q=7 or q=6 bitrate very high, even down to q=1 still high, then set back to q=7 and bitrate is at 8.5Mbps.<br></div><div><br></div><div>some results I've had</div><div>q=9 11mbps<br></div><div>q=10 79mpbs<br></div><div>q=5 107mpbs<br></div><div>q=2 28mpbs<br></div><div>q=7 11.5mpbs<br></div><div><br></div><div>With ogg vorbis I used to succeed better. Wild bitrates only create huge files that are difficult to store.<br></div><div><br></div><div>Quinton</div></div><br></body></html>