Re: transcoding one video file with multiple settings

compression markers forcing i-frames.. now I remember - that's what I've read about... :) thanks craig. I will try that.


the funny thing is that I usually get good results with fast action but mainly get artefacts in the slow movements of subtle gradients.


about 2-pass vs. 1-pass encoding I'm a bit uncertain. there are so many different things I've read about this. (I'm sure I could find some threads in this forum, I didn't look into that to be honest though.)

in the last tutorial I've read (don't ask me where) I was told that 2-pass encoding favors encoding speed for quality by being as precise as possible concerning a predefined file size, whereas in 1-pass encoding I should be able to choose between bitrate as a criterium or constant quality (without regards to file size) or as a third option: "constant quantizer" (choosing quality by complexity). all of that is nice in theory... I haven't found an encoding program that does allow to choose by exactly these options. I tend to believe that the CQ - method is the one used by most encoders today by default. maybe the tutorial was really old too.

oh well.. so much to still learn... 'sigh' :)


thanks however fo the tip. I'm looking forward to make some tests with forced i-frames.

manuel.