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7th September 2009, 19:21 | #3 | Link |
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Well, here "film" means real-life footage (which usually contains a decent amount of film grain) and similar, as opposed to Anime/Cartoon/CGI.
So if your "music video" is real-life footage with some grain, then "--tune film" will be suitable indeed. But if your video clip is animated, then "--tune animation" may be more suitable.
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7th September 2009, 20:06 | #5 | Link |
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While video tapes certainly have their own kind of artifacts, I think the "--tune" option is not so much about the type of the storage media, but about the kind/origin of the content.
Therefore I would choose the "--tune" option depending on what kind of content (real-life vs. animated) is stored on your video tape...
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7th September 2009, 23:15 | #8 | Link |
x264aholic
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--tune film sets deblock to -1:-1 and psy-trellis to 0.15. Nothing more than that.
All it really does is enable options which are known to help filmic content retain sharpness and grain (deblock and psy-trellis respectively). There's no secret tuning of parameters that you only get from use --tune, just enabling of plain sight options.
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8th September 2009, 02:12 | #10 | Link | |
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Quote:
At the same time it may not be the best idea to use that for "animated" content, which usually doesn't have much texture and grain, even if there is a lot of action in it...
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8th September 2009, 02:22 | #12 | Link | |
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Quote:
The question is whether "--tune film" is beneficial for your source compared to the defaults. And that generally is the case with "real-life" footage or "filmic" content. However it still may depend on the individual source and on your personal preferences. Also deblock -1:-1 may not be the best idea for ultra-low bitrates...
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8th September 2009, 02:27 | #14 | Link | |
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Quote:
But it can't be guaranteed for any single source that exists out there. There never is a guarantee for any setting to be perfect for all sources. At this point you should do some testing and see yourself The "--tune film" option even isn't necessarily bad for all animated sources, because animated sources may use "film look" effects (e.g. fake grain), which would make it behave more like film. (BTW: It's not a preset, it's a tuning. Those are separate! Presets help to control speed -vs- quality. Tunings help to fine-tune the encoder for a specific type of content/result)
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8th September 2009, 02:35 | #16 | Link |
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Then we can only hope that one of the "experts" will finally reply to this thread
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8th September 2009, 03:13 | #17 | Link | |
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Just so you understand. The expert does not post just to confirm. He only posts when there is misinformation, or he answers the question. |
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11th September 2009, 15:13 | #19 | Link | |
Mr. Woof
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I've experimented around with the --tune film option via MeGUI and found either a problem with what I'm doing or the settings it should set. Once I check the encoded files with AVInaptic, it reports -psy-rd to be 1.0:0.0 when, according to the wiki, it should be 1:0.15. These files were generated with CRF=21 with the -very slow preset (command line below). From reading the wiki, the --tune option is to be applied after the preset, so I thought any options set within the --tune setting should supersede any conflicting options (such as --deblock and --psy-rd). What am I missing?
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11th September 2009, 15:18 | #20 | Link |
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The GUI settings does not reflect the tuning, meaning that if you choose the "film" tuning and then you go to the advanced settings, the Psy-RD values won't have changed to the 1:0.15 of the tuning; they will be the one from the MeGUI preset that you have selected.
And you have to remember that every option explicitly passed on the command line (so, every personalized MeGUI setting) will override the ones set by "--tune" or "--preset". |
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