Hi all,
Sorry if I post in the wrong forum but I could'nt decide if this subject was better there or in KVCD template forum.
As some of you (all ?
), I try to find how I can raise my CQ without modifying the length of the video encoded. I remember an old post of Sansgrip telling that with some spoilage, the samples were smaller. So I did some tests. And there are the results :
(I worked in VLBR, with min = 64kb/s, max = 1150kb/s and CQ = 70)
MPEG1 with P pict spoilage = 5 and B pict spoilage = 20
--> samples length = 1467 Ko
MPEG2 with P pict spoilage = 5 and B pict spoilage = 20
--> samples length = 1455 Ko
MPEG1 with P pict spoilage = 0 and B pict spoilage = 0
--> samples length = 1590 Ko
MPEG1 with P pict spoilage = 0 and B pict spoilage = 0
--> samples length = 1624 Ko
Conclusions:
1/ MPEG2 has better results than MPEG1 but the video looks worst. So the winner is MPEG1.
2/ with spoilage, I have a gain a 10% on the sample size !
The question is : shouldn't we use spoilage to make our KVCD ?
