doelli811 wrote:
And the file is to big, aprox. 45MB. I don't know how I can more compress the png pictures.
The compression of the PNG images don't matter. The frames are re-compressed using one of several different methods. Whichever method produces the smallest output is used.
I don't really understand the methods that are used myself. One of them simply stores a compressed description of the difference between one frame and the next one. That method works best if there are little or no difference between the frame. If there's even the tiniest difference (it might not even be visible to the naked eye) in the colours used, the method could break down completely. In that case, another method would probably be used, but it's likely that they too work best if two consecutive frames are almost identical.
Some of the
Broken Sword 1 movies were originally 640x200 pixels, rather than 640x400. The movie was then scaled up on plaback. That might improve the compression rate, too, though I don't remember if the intro movie was one of these. Cleaned-up versions of the movies wouldn't have this advantage.
doelli811 wrote:
The PNG (8bit) files are great, but if I encode it to dxa and play it ScummVM, the video looks not so good.
Okay, it's has only 12 frames/sec, but that isn't the problem.
I want to know what the tool "encode_dxa" do, or how ScummVM use the dxa in the engine?
Why looks pictures after encode so bad? Really. No Antialiasing!
The encoder shouldn't make any changes to the frames at all. Whatever is in them will be what's in the resulting DXA file as well.
I haven't looked at yours, though. It's too late at night here.
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