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17th March 2013, 17:41 | #1 | Link |
Registered User
Join Date: Sep 2005
Location: Vancouver
Posts: 600
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x264: suppose I set a bitrate higher than the lossless rate?
What is the resulting video, as compared to the original?
Do I get lossless + overhead? An approximation? Something else entirely I'm not considering? |
17th March 2013, 18:19 | #2 | Link |
(schein)heilig
Join Date: Jun 2003
Location: Germany
Posts: 512
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Visually lossless? Most likely yes. Bitwise lossless: No because the lossy algorithms throw information away, no matter how high you set the bitrate. In practice your encoded video might not even reach the desired bitrate because the encoder was saturated (i.e. couldn’t make it any larger) earlier.
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Brother John When lost in BeSweet's options, have a look at the Commandline Reference. DVD nach MPEG-4 klappt nicht? Verzweifelt? Auf zum Encodingwissen! |
17th March 2013, 23:40 | #3 | Link | |
Testeur de codecs
Join Date: May 2003
Location: France
Posts: 2,484
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Quote:
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Le Sagittaire ... ;-) 1- Ateme AVC or x264 2- VP7 or RV10 only for anime 3- XviD, DivX or WMV9 Last edited by Sagittaire; 17th March 2013 at 23:46. |
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17th March 2013, 23:41 | #4 | Link |
x264 developer
Join Date: Sep 2005
Posts: 8,666
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You can effectively set a precision higher than lossless by using an absurd CQM (and thus potentially get a higher bitrate). But because of rounding errors in the transforms and so forth, it won't actually be lossless -- just very very close.
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