Daniel Low
Forum Replies Created
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Two pass (which is not to be confused with VBR, as some people do!) should nearly always give you a more efficient encode. I.E. same quality for less bandwidth or higher quality for the same bandwidth, when comparing to one pass.
2 pass can be used with both CBR and VBR encodes.
The only downside with two pass is that it usually takes at least double the time as the one pass and more often than not writes a temp file to disk.
It’s a simple task to do a test on a small part of a clip to see if there’s any significant diference and quality and file size.
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“A graphic artist we use a lot works on After Effects on a Mac but doesn’t have (or want) Final Cut on his machine”
Just give him the codecs; (navigate to:
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Every 5 frames is ‘wrong’ (when I saw that you were using that seeting in an earlier post I assumed it was for every 5 seconds) – a general rule of thumb is to set keyframes to be 10 x your frame rate, so at 30fps there should be a keyframe every 300 frames.
Modern codecs are very good at inserting keyframes when there’s enough of a ‘scene-change’ to warrant one.
Inserting more frequent keyframes (especially once every 5 frames) usually just ends up making a much bigger file, with a much higher datarate and without too much improvement in picture quality.
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This statement is a gem: “Apple needs to start realizing….”.
It’s not exactly like they don’t have a clue!
Avid are seriously hurting as a direct result of Apple ‘realising’, ProRes or no ProRes.
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I very much doubt it. Apple wants to drive people to using its hardware and does not (necessarily) want to enable other peoples technology.
Additionally the Pixlet CODEC is not on Windows. ProRes will be seen as another reason for users to make the ‘switch’.
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Remember that Apple usually gets its hands on very high quality source material, much higher than 720p.
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It’s fine to put media file much bigger than that on a website – Apple does it all the time on their Quicktime trailers pages.
That said I couldn’t expect anybody to watch more that a few seconds of video at 120×90, it’s cruel!
You should really be looking at working on your encoding settings, I’m currently doing very good looking encodes at 480×360, 25fps using H.264 at data rates of between 500-700kb/s – 18mins at those data rates will bring your total file size down to under 100MB
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Does it encode correctly to any other formats?
Are you on Mac or Windows?