Doom9's Forum - View Single Post - HC one pass

2Bdecided · 2nd December 2008, 01:28

Using "Profile Best" doesn't help at all.

Using Matrix: MPEG bumps the bitrate up compared with Fox1 (e.g. asking for 9Mbps gets 8Mbps with MPEG, but 6Mbps with Fox1) - however, the MPEG matrix at 8Mbps isn't as good quality as the Fox1 matrix at 8Mbps on the clip I'm testing.

It's a mystery.

I know it's abusing HC to want to do this, but it seems strange that it can manage to do it fairly well if you say it's VBR with the same average and max bitrate, but not if you say it's ABR with very high quality and the same max bitrate.

Cheers,
David.

2nd December 2008, 01:28	#7 \| Link
2Bdecided Registered User Join Date: Dec 2002 Location: UK Posts: 1,673	Using "Profile Best" doesn't help at all. Using Matrix: MPEG bumps the bitrate up compared with Fox1 (e.g. asking for 9Mbps gets 8Mbps with MPEG, but 6Mbps with Fox1) - however, the MPEG matrix at 8Mbps isn't as good quality as the Fox1 matrix at 8Mbps on the clip I'm testing. It's a mystery. I know it's abusing HC to want to do this, but it seems strange that it can manage to do it fairly well if you say it's VBR with the same average and max bitrate, but not if you say it's ABR with very high quality and the same max bitrate. Cheers, David.