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25th January 2010, 13:09 | #2 | Link |
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--tune animation
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x264 log explained || x264 deblocking how-to preset -> tune -> user set options -> fast first pass -> profile -> level Doom10 - Of course it's better, it's one more. |
25th January 2010, 20:41 | #4 | Link |
I often say "maybe"...
Join Date: Jul 2009
Location: France
Posts: 583
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More b frames and refs (7 is good....more is useless IMNO)
If you have enough bitrate: Code:
--no-mbtree --b-pyramid normal --aq-mode 0 --psyrd 0:0 Well you need to test to get a good compromise ringing/banding... |
26th January 2010, 09:03 | #5 | Link | |
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Quote:
Anyway, I would recommend this settings (if time doesn't matter): Code:
--preset veryslow --tune animation --aq-mode 4 --qcomp 0.72 --b-pyramid normal keep in mind, that you need a patched build for --aq-mode 4 like this http://forum.doom9.org/showpost.php?...postcount=2923 |
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26th January 2010, 12:46 | #7 | Link |
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Join Date: Dec 2005
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His target is AVCHD, so this exotic setings such as bframes > 3 are not allowed Resoultion then must be 720x480, 720x576, 1280x720, 1920x1080, 1440x1080 and no exceptions, btw here you have allowed combinations http://www.avchd-info.org/format/index.html. Based on this other settings must be applyed such as max ref frames, VBV, level. To be more safe i recommend you to use Level 4.0, VBV-Maxrate 15000, VBV-BufferSize 15000, and maximum 4 reference frames for any resolution, and 3 bframes. Also you need nal-hrd patched x264 buld and you need to use --nal-hrd and --aud switches aslo.
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26th January 2010, 22:39 | #8 | Link |
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Location: San Jose, California
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Is this comparing the same sized files or are you using no-mbtree with the same crf value as a way of increasing the size? I haven't noticed this is why I am asking (but maybe I am encoding to to low of a crf value for this effect to be seen).
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27th January 2010, 03:56 | #9 | Link |
I often say "maybe"...
Join Date: Jul 2009
Location: France
Posts: 583
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I usualy use 2 passes encoding, even for testing.
Well I did a test: I compared my old reference encode (without mbtree and with regular settings on r1332) of my favorite dvd sample test with complete insane overkill placebo settings+mbtree of the last 1400... At my eyes, the old regular encode is highly better. But I repeat: it's just my opinion. |
27th January 2010, 10:21 | #10 | Link | |
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Quote:
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27th January 2010, 21:55 | #11 | Link | |
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Quote:
Last edited by Asmodian; 27th January 2010 at 21:58. |
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27th January 2010, 22:13 | #12 | Link |
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Location: São Paulo, Brazil
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I usually use qcomp around 0.7 or a bit higher, so if AQ or MB-tree decide to screw up my image, they can't do too much damage. The higher the bitrate/quality that I'm aiming for, the higher I set the qcomp. I'm aware that I'm trading compression efficiency for more safety and a more constant quality acros the video. Kinda like when you chose to do more or less denoising before feeding the video to x264. IMHO, the default value of 0.6 is too low as a default...
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28th January 2010, 01:53 | #13 | Link |
I often say "maybe"...
Join Date: Jul 2009
Location: France
Posts: 583
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I never try to change qcomp...
Will do tests by increase it a little. My test source is really difficult to compress, lot of motion, fades, grain....so good for testing! I output it at 768x416 at 800kbps (same than my reference old encode) |
28th January 2010, 11:59 | #14 | Link | |||
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Location: Hungary
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Quote:
Quote:
I've experienced a bit, and found 0.72 the best for film. For anime it's even higher, the optimal value for my eyes is between 0.75 and 0.82. |
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