Each test has it's quicktime settings. If you are just doing a quick compairson, check out test 1 and test 4. A normal Mpeg file of this would be about 25m if it was about 320x180 (I am guessing here as I have not done this yet). The interesting thing about mp4 is that the bigger (height and width) the better the compression. A video of a smaller size as demonstrated by test 3, will not be a smaller file.
All of these files can be played with quicktime free from apple.com and I think by realvideo and mplayer.
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Video Test 1 7.5MB
Size 720x360 mp4 settings General: Video Track : Improved Size : Current Audio Track: Music Video: Video track: Improved 256 kbits/second Frames per second 24.0 Key Frame every 24 frames Audio: 32 k/bits/second Chanels: Stereo Output Sample Rate 11.025KHZ Encoding Quality: Better Streaming Hinting Type: None (nothing else matters) Compatability None |
Test two13MB
Size 720x360 mp4 settings General: Video Track : Improved Size : Current Audio Track: Music Video: Video track: Improved 512 kbits/second Frames per second 20.0 Key Frame every 24 frames Audio: 32 k/bits/second Chanels: Stereo Output Sample Rate 11.025KHZ Encoding Quality: Better Streaming Hinting Type: None (nothing else matters) Compatability None |
Test three13MB
Size 320x180 mp4 settings General: Video Track : Improved Size : Current Audio Track: Music Video: Video track: Improved 512 kbits/second Frames per second 20.0 Key Frame every 24 frames Audio: 32 k/bits/second Chanels: Stereo Output Sample Rate 11.025KHZ Encoding Quality: Better Streaming Hinting Type: None (nothing else matters) Compatability None |
Test Four16.6MB
Size 720x360 mp4 settings General: Video Track : Improved Size : Current Audio Track: Music Video: Video track: Improved 512 kbits/second Frames per second 24.0 Key Frame every 24 frames Audio: 32 k/bits/second Chanels: Stereo Output Sample Rate 11.025KHZ Encoding Quality: Better Streaming Hinting Type: None (nothing else matters) Compatability None |
