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1st June 2008, 20:24 | #45 | Link |
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New patch. Updates:
1. Ignores chroma. This speeds things up and didn't seem to change things visually at all. Even if we used chroma, it should probably be weighted a lot lower anyways. 2. Raises B-RDO threshold. 3. Now available as a commandline option (--rdcmp). |
1st June 2008, 20:32 | #46 | Link | |
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Nice discussion. The differences between what people consider to be better might be due to their displays (because i don't think our eyes differ this much). For example, in x264 encodes I don't see much ringing on my monitor but i definitely see blurring and ugly smearing of details (esp without VAQ). This new RD seems to make pictures more 'dirty' which is similar in effect to dct noise mentioned in xvid encodes. Of course, there are also preferences but I can't believe displays aren't a factor.
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EDIT: I'd like to add that I also prefer details over artifacts Last edited by jethro; 1st June 2008 at 20:37. |
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1st June 2008, 21:12 | #48 | Link |
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1st June 2008, 22:23 | #49 | Link |
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I think it also depends of resolution. My sample had dvd resolution while new psy rdo maybe more optimized for HD. Artifacts look different for HD and DVD. And of course it depends of display and other conditions of watching samples.
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1st June 2008, 22:42 | #50 | Link | |
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Quote:
vs vs PSY vs FGO vs Elecard 31 832 vs 64 267 vs 63 751 bits (all frame are Pframe) And here FGO produce by far the best quality ...
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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; 1st June 2008 at 23:16. |
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1st June 2008, 23:11 | #53 | Link |
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Given that its frame size is double that of psy RDO, how am I not surprised?
If its a B-frame, you can compensate for that by setting pbratio lower... that's what FGO does anyways and its probably wrong to put anything into mainline x264 that changes settings like that when the user should be in control of it. If it isn't, maybe you didn't use the same bitrate for the two clips...? Also, note that here, the Elecard frame isn't even the same frame of the video...
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Follow x264 development progress | akupenguin quotes | x264 git status ffmpeg and x264-related consulting/coding contracts | Doom10 Last edited by Dark Shikari; 1st June 2008 at 23:13. |
1st June 2008, 23:15 | #55 | Link | ||||
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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; 1st June 2008 at 23:20. |
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1st June 2008, 23:16 | #57 | Link |
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I'm proposing that FGO has absolutely nothing to do with the double-size frame and that there has been user error here, such as comparing B-frames with different pbratio or encoding with different bitrates. Especially since the clips you posted earlier were not even of the same video clip, I don't exactly trust that you've done everything right here...
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1st June 2008, 23:29 | #58 | Link | |
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Quote:
Source is Casino Royal with really different grain level.
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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; 1st June 2008 at 23:34. |
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2nd June 2008, 01:48 | #59 | Link |
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about the frequencies and the quantization...
that sounds like Psy RDO works somehow like a custom matrix? I understand that a matrix uses fixed values, but it goes into the same direction, be more "kind" to the lower frequencies, to avoid blocking, preserving a good "look"... |
2nd June 2008, 08:10 | #60 | Link | |
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2 pass mode with fast first pass: x264.exe --threads 3 --thread-input --keyint 24 --min-keyint 2 --vbv-maxrate 20000 --vbv-bufsize 30000 --mvrange 511 --level 4.1 --bframe 3 --b-pyramid --bime --weightb --ref 1 --mixed-refs --direct auto --deblock -2:-2 --bitrate 6900 --pass 1 --stats "casino.log" --ipratio 1.10 --pbratio 1.10 --partitions "all" --8x8dct --me "hex" --subme 5 --trellis 0 --aq-mode 0 --aq-strength 0.00 --aud --nal-hrd --sar 1:1 --cqmfile Sagittaire.cfg --progress -o NUL Lossless.avs And after I use always the same casino.log stat for all the encoding. x264.exe --threads 3 --thread-input --keyint 24 --min-keyint 1 --vbv-maxrate 20000 --vbv-bufsize 30000 --mvrange 511 --level 4.1 --bframe 3 --b-pyramid --b-rdo --bime --weightb --ref 3 --mixed-refs --direct auto --deblock -2:-2 --bitrate 6900 --pass 2 --stats "casino.log" --ipratio 1.10 --pbratio 1.10 --partitions "all" --8x8dct --me "umh" --subme 7 --trellis 2 --aq-mode 2 --aq-strength 1.00 --no-fast-pskip --no-dct-decimate --aud --nal-hrd --sar 1:1 --cqmfile Sagittaire.cfg --zone 201560,207442,b=0.33 --progress -o 1080p_3.264 Lossless.avs Quality mode: x264.exe --threads auto --thread-input --keyint 24 --min-keyint 1 --crf %E_BR% --vbv-maxrate %MAX_BR% --vbv-bufsize %BUF_BR% --mvrange 511 --level 4.1 --bframe 3 --b-pyramid --b-rdo --bime --weightb --ref 3 --mixed-refs --direct auto --deblock -2:-2 --ipratio 1.10 --pbratio 1.10 --partitions "all" --8x8dct --me "umh" --subme 7 --trellis 2 --no-fast-pskip --no-dct-decimate --aud --nal-hrd --sar 1:1 --cqmfile Sagittaire.cfg --aq-strength 1.00 --aq-mode 2 --zone %CRE_FR%,%END_FR%,b=0.33 --progress -o 1080p_Q1.264 %E_SRC% With 2 pass encoding and exactly the same setting than crf mode (and same final bitrate) I have completely different Rate Control (for example 31 832 bits vs 70 926 bits for frame 20 491). VAQ + PSY seem imply major modification in RC between first and second pass. It's perhaps necessary to use VAQ and PSY in first pass too ... ???
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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; 2nd June 2008 at 08:14. |
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psy-rd, psyrdo |
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