Search found 206 matches

by nhyone
Thu May 23, 2019 1:13 am
Forum: Windows
Topic: Handbrake and NVenc - best preconfigured settings
Replies: 9
Views: 708

Re: Handbrake and NVenc - best preconfigured settings

For me, because I'm encoding the movies for professional clients who can usually see a difference, I still use the plain ol' H.264 codec set to VerySlow. Even though my main machine is an 18-core i9-7980XE running at 4.2 GHz, it's encoding at 22 FPS (considering a 2-pass encode), or in other words,...
by nhyone
Fri May 10, 2019 5:06 am
Forum: General Questions
Topic: Speed, Quality, File-Size - Pick Two
Replies: 7
Views: 548

Re: Speed, Quality, File-Size - Pick Two

musicvid wrote:
Thu May 09, 2019 4:12 pm
MediaInfo will give you the bits per pixel, which will reflect relative compression ratio.
Yes, but it does not tell us if we are able to compress the file further.

For example, the 25 GB file could be compressed to 5 GB. But it could also be that it remained around 25 GB after re-encoding.
by nhyone
Thu May 09, 2019 11:52 am
Forum: General Questions
Topic: Speed, Quality, File-Size - Pick Two
Replies: 7
Views: 548

Re: Speed, Quality, File-Size - Pick Two

The source file is about 25 GB. I use H.264 with 30fps, RF18 constant quality etc., which are the standard settings preset by handbrake. But - the resulting file size is only about 5 GB. How can that be? If the source file is from Blu-ray, it is only lightly compressed. Unfortunately, you cannot te...
by nhyone
Sat Apr 27, 2019 12:19 am
Forum: Command Line Interface And Scripting
Topic: Difference in output files from CLI and GUI
Replies: 18
Views: 411

Re: Difference in output files from CLI and GUI

Rodeo wrote:
Fri Apr 26, 2019 6:46 pm
x264 is fully deterministic unless you specifically tell it not to be though (even with VBV).
When lookahead threads > 1, the output size is larger. I forgot if it is deterministic.

And with 1 lookahead thread, there isn't much reason to use >6 threads.
by nhyone
Fri Apr 26, 2019 3:35 am
Forum: Command Line Interface And Scripting
Topic: Difference in output files from CLI and GUI
Replies: 18
Views: 411

Re: Difference in output files from CLI and GUI

I believe it is due to multithreading. When encoding a chunk, it may need to reference previous chunks. Earlier chunks may finish close enough that different ones are used on different runs. x264 also has this issue, but to a lesser extent. If you use more threads, space efficiency goes down a littl...
by nhyone
Sat Apr 20, 2019 12:41 pm
Forum: General Questions
Topic: From A Unique Perspective
Replies: 11
Views: 421

Re: From A Unique Perspective

On general encoding: IMO, if you are encoding 1080p or lower, just use H.264. :) Two years ago, H.265 looked like it would be the future, but it kind of fizzled out -- no doubt due to patent royalties. The good thing about x264 is that it is really easy to get good encoding, no secret sauce needed. ...
by nhyone
Sat Apr 20, 2019 4:25 am
Forum: General Questions
Topic: From A Unique Perspective
Replies: 11
Views: 421

Re: From A Unique Perspective

Hand On Tha Brizzake wrote:
Mon Apr 15, 2019 2:43 am
I also have terabytes of space and will sacrifice space for quality at the lossless level.
I do have a question: why not leave the source files as-is? Why do you need to transcode?
by nhyone
Sat Apr 20, 2019 2:27 am
Forum: General Questions
Topic: Speed, Quality, File-Size - Pick Two
Replies: 7
Views: 548

Re: Speed, Quality, File-Size - Pick Two

There is an asterisk for speed, quality and file size when it comes to video encoding.

It is not as simple as pick two of the three.

It is well-known that you can choose overly slow/insane settings that do very little or nothing for quality nor file size.
by nhyone
Thu Feb 07, 2019 1:38 pm
Forum: Windows
Topic: Help with settings for AVI to h.265
Replies: 9
Views: 466

Re: Help with settings for AVI to h.265

Original (135 MB)
avi_0008.png

x264, CRF 26, veryfast preset, tune animation (62.0 MB)
1_veryfast_crf26_tune_animation_0008.png

x264, CRF 24, veryfast preset, tune animation; nlmeans medium, tune animation (67.5 MB)
1_veryfast_crf24_tune_animation_nlm_med_animation_0008.png
by nhyone
Mon Feb 04, 2019 3:32 pm
Forum: Windows
Topic: Help with settings for AVI to h.265
Replies: 9
Views: 466

Re: Help with settings for AVI to h.265

As @musicvid said, you can just use x264. If you want to transcode a low-quality source, the first thing you want is to discover the "equivalent" CRF -- the CRF that will give you the "same" quality as the source. I tried x264, veryfast preset, CRF 22 (80.2 MB), 24 (66.8 MB), 26 (56.7 MB), 28 (49.0 ...
by nhyone
Wed Oct 11, 2017 1:55 pm
Forum: *nix
Topic: Ubuntu 16.04.3: Handbrake not 100% of all CPU cores (using stebbins ppa)
Replies: 2
Views: 2294

Re: Ubuntu 16.04.3: Handbrake not 100% of all CPU cores (using stebbins ppa)

100% CPU load is one thing, but is it actually faster? Look at the final 'average fps' and see if HandBrake on Windows is truly faster than Linux.

It could be that the two OS measures load differently.
by nhyone
Mon Oct 09, 2017 10:11 pm
Forum: General Questions
Topic: What bitrate/RF do you recommend?
Replies: 8
Views: 1994

Re: What bitrate/RF do you recommend?

I'm unable to uncompress the rar file. For dark scenes, see if using aq mode 3 helps.
by nhyone
Sun Sep 17, 2017 4:21 am
Forum: General Questions
Topic: Ripping Blu Ray collection to the same specs as iTunes store HD movies
Replies: 19
Views: 4246

Re: Ripping Blu Ray collection to the same specs as iTunes store HD movies

nhyone - Thank you, as you're the only one that actually said anything helpful. Thanks. :D Some people think they can do better by tuning average bitrate by the movie, but that's what CRF does: constant quality by varying the bitrate. Just to clarify, by "okay", I mean you need to be super critical...
by nhyone
Sun Sep 17, 2017 1:02 am
Forum: General Questions
Topic: Best Settings for a 55inch Display
Replies: 9
Views: 2496

Re: Best Settings for a 55inch Display

I would like to ask the community if there any tricks or advanced options to deal with quality in background noise so its not so noticeable on a 55inch display. Can you capture a screenshot showing the noticeable background noise? According to your log, using 12 Mbps for this video is equivalent to...
by nhyone
Fri Sep 15, 2017 8:01 am
Forum: General Questions
Topic: Ripping Blu Ray collection to the same specs as iTunes store HD movies
Replies: 19
Views: 4246

Re: Ripping Blu Ray collection to the same specs as iTunes store HD movies

I always give the same suggestion: always use CRF. To choose the CRF to use, pick a video, encode it at 18, 20, 22, 24. Pick the highest number that looks okay to you. Then go one level finer. Say you pick 22, then you should try 21 and 23. Think choose again. You can use this number for 99% of your...
by nhyone
Tue Sep 12, 2017 12:11 pm
Forum: Devices and Presets
Topic: Any advantage to HEVC for Blu-ray?
Replies: 8
Views: 5817

Re: Any advantage to HEVC for Blu-ray?

We're talking single digit percentages associated with block size? 1%? Less? The CTU wiki page cites a difference of 18% comparing CTU 16 to 64 in one study of 1080p videos. H.264 allows MacroBlocks of 16x16 only. I've always wondered what if someone defines a "level 6" and extend it to 64x64? Will...
by nhyone
Sun Sep 10, 2017 2:22 am
Forum: Devices and Presets
Topic: Any advantage to HEVC for Blu-ray?
Replies: 8
Views: 5817

Re: Any advantage to HEVC for Blu-ray?

Said block sizes obviously aren't HEVC's only edge over older codecs, but the idea that HEVC's efficiency advantage is more significant at higher resolutions is at least partially true. x265 is too aggressive in using big block sizes and it is common to see people limit CTU to 32 for 1080p videos. ...
by nhyone
Sat Aug 19, 2017 3:39 am
Forum: General Questions
Topic: Upgrade of MKV collection from H.264 to H.265 possible?
Replies: 22
Views: 5151

Re: Upgrade of MKV collection from H.264 to H.265 possible?

After evaluating x265 for a while, I decided to continue using x264 until I have more compelling reasons to switch. My reasons: x265 is very slow. I use a tweaked slower preset and it is much slower than x264's tweaked veryslow (can't remember how slow, except it was really slow) It took a long time...
by nhyone
Wed Aug 16, 2017 8:24 pm
Forum: Bugs
Topic: Incorrect Value Type when exporting presets (custom or built-in) from GUI to JSON file.
Replies: 4
Views: 5745

Re: Incorrect Value Type when exporting presets (custom or built-in) from GUI to JSON file.

What is in the log isn't a preset, but rather the job settings (what would show in a GUI queue entry). Oops, I meant the job settings, not the preset. :D The reason is that the command-line options show up in ps , but if passed in using job settings, they do not. This is only a problem for multi-us...
by nhyone
Wed Aug 16, 2017 12:16 pm
Forum: General Questions
Topic: Help with Optimal H.265 1080p settings
Replies: 35
Views: 8729

Re: Help with Optimal H.265 1080p settings

It's a bad idea for high quality encodes, which is why we set strong-intra-smoothing=0 in the official presets that use x265. Are you setting other parameters too? The x265 parameters are tuned for clean lossless 4K source. They are different from the source we consumers normally use -- H.264 1080p...
by nhyone
Wed Aug 16, 2017 11:58 am
Forum: Bugs
Topic: Incorrect Value Type when exporting presets (custom or built-in) from GUI to JSON file.
Replies: 4
Views: 5745

Re: Incorrect Value Type when exporting presets (custom or built-in) from GUI to JSON file.

It'll be nice if the command-line HB can emit the GUI JSON file. It can already do so, but only as part of the log.

The CLI emits the values as strings, unlike the GUI that emits them as numbers...
by nhyone
Wed Aug 16, 2017 10:22 am
Forum: General Questions
Topic: Is it true that there is no big gain of using more than 5 reference frames?
Replies: 19
Views: 3883

Re: Is it true that there is no big gain of using more than 5 reference frames?

Handbrake can always check the advanced settings and cap the limit. :D

From what I googled, only ref is limited by levels, bframes is not. And for the typical level 4.1, the two most common ref limits is 9 for 720p and 4 for 1080p.
by nhyone
Wed Aug 16, 2017 12:29 am
Forum: General Questions
Topic: Help with Optimal H.265 1080p settings
Replies: 35
Views: 8729

Re: Help with Optimal H.265 1080p settings

One thing I've learned is that (using 12-bit H.265) with a grainy source, when I go 2-pass/bitrate, I need to leave Encoder Tune set to None to retain that noisy detail. I tuned Grain and it looked worse. But when going constant quality (trying 30 and 32) if I leave the Encoder Tune at None it is b...
by nhyone
Tue Aug 15, 2017 2:04 pm
Forum: General Questions
Topic: Quality beyond Very Slow or Placebo in H.264?
Replies: 17
Views: 3485

Re: Quality beyond Very Slow or Placebo in H.264?

I also think this discussion is interesting when reviewing the Official Presets Pane. The preset for "Super HQ 1080p30 Surround" uses the "veryslow" Encoder Preset and CQ RF of 18. Isn't this overkill for no discernible improvement (aside from bragging rights as someone offered above)? The "HQ 1080...
by nhyone
Mon Aug 14, 2017 3:19 am
Forum: General Questions
Topic: Is it true that there is no big gain of using more than 5 reference frames?
Replies: 19
Views: 3883

Re: Is it true that there is no big gain of using more than 5 reference frames?

What would be the difference between ref and ref-max, and bframe and bframe-max?

Doesn't the former already set the max to use?