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31st May 2010, 12:05
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#1521 | Link | |
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Are you sure you looked at the filtered output? In the main window Avidemux shows the unprocessed input by default  So you need to switch to the "output" view first in order to judge the result of a filter! (Furthermore applying filters isn't possible in "Copy" or "Requant" mode. You must re-encode the video, if you intend to apply filters)
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31st May 2010, 12:16
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#1522 | Link | |
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Join Date: May 2007
Posts: 26
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Only "Median" seems to do anything.. strange Like I said I had to convert the colorspace to get convolution3d to work in my AVS scripts. Is there a way to convert to to different color spaces in Avidemux? I just checked the admlog.txt and it seems that the encoder is completely ignoring the most of my settings. For example subme is simply set to 2 and me is set to dia, but I set it to tesa. Why is this? Is this some kind of fast-firstpass thing? If so, can I deativate it? Mark |
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31st May 2010, 12:42
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#1523 | Link | ||||
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HQDN3D definitely does "something" Quote:
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Remember: We throw away the output from the first pass anyway. All we re-use for the second pass (i.e. the final output) is the "stats" file created during the first pass. Thus lowering settings for the first pass that don't effect the information in the "stats" file will NOT degrade the final result. But it saves a lot of time!
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Go to https://standforukraine.com/ to find legitimate Ukrainian Charities 🇺🇦✊ Last edited by LoRd_MuldeR; 31st May 2010 at 12:47. |
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31st May 2010, 12:50
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#1524 | Link | ||
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However, I will try Avisynth input. Quote:
EDIT: I just encoded a short test clip and it actually MAKES a difference in stats/mbtree file when encoding with --slow-firstpass and without it. Last edited by dbmaxpayne; 31st May 2010 at 13:15. Reason: testing |
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31st May 2010, 13:23
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#1525 | Link | ||
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You should understand the "placebo" preset as something that tells you which settings NOT to use for any real work Quote:
 Did you actually make two separate 2-Pass encodes (one made with "--slow-firstpass", one made without) from the same source and compare them visually ??? (Please don't tell me you diff'ed the stats file and concluded anything from that ^^)
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Go to https://standforukraine.com/ to find legitimate Ukrainian Charities 🇺🇦✊ Last edited by LoRd_MuldeR; 31st May 2010 at 13:25. |
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31st May 2010, 13:46
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#1526 | Link | |
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Just did a second pass with --ssim stats/mbtree/bitrate/ssim standard: 96kb/1327kb/1517.26/0.9904520 --slow-firstpass: 126kb/1351kb/1509.02/0.9904939 So my conclusion: It actually DOES make a difference, even if it may be nigligible :-) But since encoding time is not a problem for me, I will still use --preset placebo for encoding. But you said there is no way for me to use --slow-firstpass in avidemux? Last edited by dbmaxpayne; 31st May 2010 at 13:48. Reason: mixed standard and slow-firstpass |
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31st May 2010, 14:06
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#1527 | Link | ||||
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SSIM is far away from being a reliable quality indicator. It very roughly predicts the subjective quality, but you cannot rely on that! Also with Psy-optimizations enabled (and I assume you had them enabled), the SSIM values are even less useful. That's because Psy-optimizations hurt SSIM, although a human being can easily see that they improve the visual quality. So sometimes a worse SSIM means better quality! With such an inaccurate quality metric (and no existing quality metric is accurate), a tiny difference of 0.00004 certainly does not imply a visual difference! If the difference was like ~0.1 then I would take care. But your results are far away from that. (Also note that the minor difference in file size is expected. x264 intentionally doesn't hit the target file size 100% accurate, because enforcing this would hurt quality) Quote:
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Or even better: Complain about this at the Avidemux forum, until the Avidemux developers finally add a proper "fast-firstpass" option, so I don't need to patch the builds any more. (I have suggested this about a dozen times, but so far nobody seems to care...)
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Go to https://standforukraine.com/ to find legitimate Ukrainian Charities 🇺🇦✊ Last edited by LoRd_MuldeR; 31st May 2010 at 14:49. |
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31st May 2010, 14:44
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#1528 | Link |
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Thanks for your explanations :-)
I've requested the feature here: http://avidemux.org/admForum/viewtop...d=44104#p44104 btw: Just saw that you're from germany. Where are you from? :-) |
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1st June 2010, 23:32
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#1529 | Link | |
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Avidemux 2.5.3 r6288 (2010-06-01)
http://www.avidemux.org/ Quote:
Download Mirror #2: http://avidemux.razorbyte.com.au/
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6th June 2010, 13:32
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#1532 | Link | |
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Avidemux 2.5.3 r6303 (2010-06-04)
http://www.avidemux.org/ Quote:
Download Mirror #2: http://avidemux.razorbyte.com.au/
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8th June 2010, 20:48
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#1533 | Link | |
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Avidemux 2.5.3 r6340 (2010-06-07)
http://www.avidemux.org/ Quote:
Download Mirror #2: http://avidemux.razorbyte.com.au/
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13th June 2010, 23:25
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#1535 | Link | ||
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Avidemux 2.5.3 r6370 (2010-06-13)
http://www.avidemux.org/ Quote:
Quote:
Download Mirror #2: http://avidemux.razorbyte.com.au/
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14th June 2010, 03:08
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#1536 | Link | |
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Join Date: Dec 2004
Posts: 145
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I like Avidemux very much tho', it's quite a lovely thing! |
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14th June 2010, 19:41
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#1537 | Link | |
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14th June 2010, 21:42
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#1539 | Link | |
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14th June 2010, 21:47
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#1540 | Link | |
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As an example for this, the "ASharp" filter comes to my mind...
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