Filesize in Mb = (((Video bitrate in kbps + Audio bitrate in kbps) X (Runtime in secs)) X 1000) / 8 / 1024 /1024 |
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Quicktime Pro doesn't have a way to specify a file size, just the bit rate. I want my movies to come out to 700MB so that they will fit onto a CD. In h.264 encoding, how do I calculate the bit rate to do that? |
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Filesize in Mb = (((Video bitrate in kbps + Audio bitrate in kbps) X (Runtime in secs)) X 1000) / 8 / 1024 /1024 |
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Last edited by Ynot; 06-26-2007 at 07:57 PM.
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Thank you very much. |
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I can't figure out how to do that, I don't think it's a feature of Quicktime. |
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bear in mind that I'm not an Apple guy (haven't used a Mac since System 7) |
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Okay, I've done some research on the current quicktime encoding. It's still just a package of random types of media strung together, which is why Apple TV won't play them. One .mov file can have lots of different types of encodings in it and even different dimensioned files. |
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Comparing H.264 with MP4 is like comparing AVI with XviD: It doesn't make any sense. H.264 is a video coding scheme, MP4 is what MPEG-4 Part 14 container format is called. Anyways, just make a two-pass encode with the average bitrate set according to the previous formulae, and you'll get files in the size you want. |
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