Hi, I've seen many mkv files that have hd 720p quality and maximum video bitrate of 1200 kbps; but they have a very good quality. Some of them have only 800 kbps but they're so clear!!
(for example, you can search "The Matrix (1999) 720p 600MB ink")
Also when I extracted the video of those MKV files (With mkvcleaver software), realized that their encodings are H264.
How can I extract my videos as such quality and size?
I use EDIUS 6, and when i extract my videos as mp4 h264 720p, with bitrate of 1000 kbps the quality would be TERRIBLE! (even in multipass mode), and with bitrate of 5500 kbps, the quality would be normal, not as good as mkv videos!
I Also used some video convertors (like Xilisoft) to create mkv files; but they reduced the size and quality as EDIUS did...
For an MKV video:
Bits/(Pixel*Frame) = 0.200
(about 600MB for 2 hours)
For my extracted video with a normal quality:
Bits/(Pixel*Frame) = 0.036
(5.5 times larger, more than 3GB for 2 hours)
What's the solution?
+ Reply to Thread
Results 1 to 7 of 7
edius timeline and exported as h264 mp4 720p 1000 kbps, the quality became so terrible that couldn't be compared with the original video.
Thanks all, I found the main reason:
EDIUS and almost ALL video converting softwares don't have the very simple "Max Bitrate" option! and set it equal to "Target Bitrate" automatically! It means you must set bitrate up to 6000 for all simple, stable or empty scenes, instead of 800 for simple or empty scenes and up to 20000 (Max bitrate) for moving and complex scenes!
But premiere does, and you can change max bitrate very simply...
What you are looking for is 2pass Variable Bitrate Encoding, VBR. You can set average bitrate (1000) and max bitrate also or min bitrate. Hard to believe that Edius does not have 2pass VBR.
What you have described is Constant Bitrate encoding, CBR.
1pass VBR modes does not work as good as 2pass VBR.