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mov to flv without compressing
Is there a way to convert an mov to flv in Squeeze without compressing the file?
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7 Replies
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No. Every time you go from one format to another, you’re re-compressing. Sometimes you won’t lose any perceptible quality (like going DV25 to ProRes422), but you’re still re-arranging pixels.
You CAN go from .mp4 to .m4v without losing quality, because you don’t re-compress, you just change the file extension, but it’s still MPEG-4 video.
tim
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OK I get it. But say I wanted to convert an uncompressed quicktime to .flv (via Squeeze) without any concern for how large the resulting file will be. Do I simple set all of the the quality settings to their highest values or is this a bit more complex than I’m assuming?
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Kind of. I’m still learning the ins and outs of Squeeze and FLVs myself, but I do know that you should set it to your source resolution, select the proper aspect ratio, and use a 1:1 frame rate, using the On2 VP6 codec.
Beyond that, I don’t feel comfortable telling any more than that, but maybe some of the pros here will jump in.
tim
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Thanks Tim. Perhaps I’ll start a new thread if no one responds here.
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To minimise the quality loss while transcoding:
Keep the frame rate & frame size the same and increase the datarate for both audio and video, by how much will really depend on the content and how sucessful will depend on the source .mov codec.Don’t forget, you can’t polish a turd.
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Believe me I gotten my share of turd polishing requests! In this case however I have properly lit head shots (shot with the HVX) composited with text in After Effect, and rendered out as Animation Codec .mov files. Problem is the text after flv conversion looks much softer and a bit ragged compared to the source. I increased to bit rate to 3000 and maxed out the quality settings (as best as I understand), but the output was still sub-par.
Other than my being a novice, I think my expectations for Flash video are too high. Like everyone else, I assume H.264 integration into Flash will help these quality issues.
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You can get some great results using VP6/Flash, not as good as H.264 but still. Look at these examples of what you can achieve with Youtube:
https://youtube.com/watch?v=WBWCxrsUh14
and
https://youtube.com/watch?v=sTj5Ur1E6HAObviously ‘quality’ is subjective.
You might get better results using a different transcoder, I highly rate Episode, for example.
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