[ACrowley]

First i thought it was my mistake, but its true

From my current encode to WVC1 720p 9Mbps 1pass CBR :

cscript.exe C:\windows\wmcmd.vbs -input d:\test.avs -output d:\test100.wmv -v_codec WVC1 -videoonly -v_mode 0 -v_bitrate 9000000 -v_preset better -v_keydist 30 -v_buffer 60000 -v_quality 100


The End Filesize is calculated to 7.5gb, but with Quality 80 its only 5,2 GB ?!


Test Sample encodes on H264 1080p Source:

These are the Statistics fter wmcmd.vbs encoding :
1 : v_quality 80 :

Video :
Codec: Windows Media Video 9 Advanced Profile
Expected bit rate: 9000000 bps
Average bit rate: 5912122 bps
Expected fps: 25
Dropped frame count: 0
Total coded frames: 535
Average sample rate: 25
Dropped bytes: 0 bytes
Total bytes: 15847906 bytes

Overall:
Encoding time: 171 seconds
Average bit rate: 5912122 bps
File size: 15933546 bytes
File duration: 21,393 seconds


2. v_quality 100

======== Encoding Completed ========

Video :
Codec: Windows Media Video 9 Advanced Profile
Expected bit rate: 9000000 bps
Average bit rate: 8986305 bps
Expected fps: 25
Dropped frame count: 0
Total coded frames: 535
Average sample rate: 18,848
Dropped bytes: 0 bytes
Total bytes: 24957774 bytes

Overall:
Encoding time: 177 seconds
Average bit rate: 8986305 bps
File size: 25077546 bytes
File duration: 21,393 seconds



So you can see with quality 80 the Output Filesite is smaller Q 80 is only 15MB, Q 100 is 23.9
The Average Bitrate with Q 80 is only at 5.9Mps
With Quality 100 its more efficient ?! with 8.9mbps

No dropped Frames with Q 100...i never had any dropped Frames in the past

So, whats up here ? Why controlls Quality Targetsize / Bitrate in 1pass CBR Mode ?

Mh...maybe ill switch to 2pass VBR