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I'm rather new in topic 'Video compressing and conversion' so please be forgiving.
I created (with my own program) 300 640x480 PNGs named frame<number>.png.
I want to make a movie with 300 frames at about 25 frames/sec. So I typed:
ffmpeg -hq -i frame%d.png movie.avi
Created file has about 3 MB and its resolution was 640x480. But the quality was SO poor - big artefacts (these ugly squares).
So I managed to read man page. And I have once change output resolution to 320x240 - the size of course decreased but quality was still bad.
And finally I found qscale parameter. Ater few experiments I set it to 10 and quality was almost perfect but the size was unacceptable - about 8 MB (700 MB CD would contain 18 minutes!).
How can I make almost useless compressed movies with proper size of file?
I tried also to change bitrate - didn't help. Will it help if I change size of PNGs to maybe 1280x960?
Thank you in advance.
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