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10th June 2016, 14:47 | #24324 | Link |
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@jdobbs i sent a small pm regarding a new system i'm building and (3d) quicksync a couple days ago. I hope you'll find the time to send a reply as i couldn't find anything specific in the first post instructions about it.
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10th June 2016, 20:03 | #24326 | Link |
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Can anyone doing full disc 3d bd25 backups using an i7 6700k (and perhaps even a maximus viii formula MB) send me a pm with their preferred sw_decoder/encoder settings if they've experimented with the different ones (for Intel quicksync!). I'm building a new system to replace my old q9550 one. I know some had problems with visual artifacts on certain settings, and I've never had a core ix system.
Please PM's only. Don't want to drag this question into an off topic discussion. Last edited by Ch3vr0n; 10th June 2016 at 21:23. |
10th June 2016, 21:05 | #24327 | Link | |
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I do full backups on BD25 with an i7. Encoding time for me, is the whole duration of the film incl. extras. An can can send you my settings YouŽll only have to set your prefered language. |
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15th June 2016, 20:31 | #24328 | Link | |
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I'm about to upgrade my older system (at least mother board, cpu, and memory... upgraded video to GTX970 already).. So I'd be curious of any issues to look out for, tips, etc. |
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15th June 2016, 20:40 | #24330 | Link |
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@Mark_Venture RE: Any chance you can start a thread/discussion?
I second that recommendation. I wish Ch3vr0n & jdobbs would get together on that thread and give us some suggestions on how to get quicksync to work properly on 3D. |
15th June 2016, 20:52 | #24331 | Link |
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I already contacted jdobbs about that, his quicksync capabilities are limited. Only 1 older generation quicksync capable system. I will be doing extensive testing and monitoring the result for artifacts and report back. Though that will be a little while longer. Some parts are on back order and the chassis will be undergoing custom airbrush.
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15th June 2016, 21:45 | #24332 | Link | |
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we can discuss in there... http://forum.doom9.org/showthread.php?t=173601 |
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15th June 2016, 21:56 | #24333 | Link |
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CRF prediction convergence?
@jdobbs
Full backup with 1-pass encoding using CRF prediction and "Quicker encode for Extras". For some short clips (marked with an asteriks) I get a very long CRF prediction sequence, like: Code:
....... - [22:16:01] Extracting A/V streams [VID_01758] - [22:16:17] Reencoding video [VID_01758] - Source Video: MPEG-4 (AVC), 1920x1080 - Rate/Length: 23.976fps, 1'678 frames - [22:16:17] Performing CRF Prediction... - Analyzing 14.65 7.83 4.41 2.71 1.85 1.43 1.21 1.11 1.05 1.03 1.01 1.01 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 [1.00] - [22:19:21] Encoding using constant rate factor. - Performing size-correcting second pass... - [22:22:19] Video Encode complete ....... Edit: My conclusion: The problematic clips are language specific intro clips which consisted predominantly of black backgrounds with few thin white letters (e.g. name of an actor). The CRF prediction tried to boost the file size to the targeted size, which -- based on the 2% sample frames -- drove the CRF down to 1.00xxx The size-correction (great!) kicked in because the encode was slightly oversized (the full clip had some "normal" pictures at the end). Some of these clips were even encoded at crf=1.00xxx without the need for the size-correction kicking in => After all, the final result was great and filled the BD25 to 96%, which is just perfect Could the CRF prediction perhaps be stopped once it gets below say 5.0? Anyway, I think this disc is an exception (Bridge of Spies) Last edited by Sharc; 16th June 2016 at 10:00. |
16th June 2016, 14:51 | #24336 | Link |
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In my opinion the outputsize is depending on min m2ts size and the custom output size. Im doning only full backups and in most cases
the output fits perfect on a single layer BD. That means 97 up to 98%. |
16th June 2016, 15:28 | #24337 | Link |
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@Sharc
I'll take a look at the prediction algorithm and do some testing. There should never be a time that the same value keeps repeating in the prediction. It should have stopped after the second time it hit the same value. I'm guessing it happened because the value was at the absolute minimum (1.00). |
16th June 2016, 16:40 | #24338 | Link | |
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