Search found 1754 matches

by BradleyS
Wed Jan 22, 2020 10:47 am
Forum: Windows
Topic: Fix stutter caused by source/capture different FPS?
Replies: 6
Views: 129

Re: Fix stutter caused by source/capture different FPS?

If I understand your reply correctly, BradleyS, because the timing on an analogue source would never be truly in sync with the digital capture Yep. Here's an image illustrating how frames 1/50 sec will fall into 1/60 sec buckets. Assumes the starting times are in sync. Regardless, the buckets will ...
by BradleyS
Wed Jan 22, 2020 2:19 am
Forum: Windows
Topic: Fix stutter caused by source/capture different FPS?
Replies: 6
Views: 129

Re: Fix stutter caused by source/capture different FPS?

60 being more than 50 doesn't preserve the original frames, sadly. The timing is permanently off and stutter baked in. Ideally you would recapture the source properly.
by BradleyS
Wed Jan 22, 2020 1:29 am
Forum: Windows
Topic: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate
Replies: 46
Views: 2222

Re: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate

Seems to be more than just changes between encoder versions. They aren't using exactly the same settings (typical). Note the presence of strong-intra-smoothing, which we disable in the official presets.
by BradleyS
Tue Jan 21, 2020 3:39 am
Forum: Windows
Topic: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate
Replies: 46
Views: 2222

Re: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate

You're welcome to do some analysis on those options. :)

I will say, if you're feeling the need to disable SAO, you probably need tune Grain anyway.
by BradleyS
Mon Jan 20, 2020 12:47 am
Forum: Benchmarks
Topic: Optimal cores for Apple 2160p60 4K HEVC Surround preset?
Replies: 9
Views: 176

Re: Optimal cores for Apple 2160p60 4K HEVC Surround preset?

Remember, mduell's 16 thread result wasn't much faster than the 8 thread result because the CPU only has 8 physical cores. The minor speed boost is due to hyperthreading. 16 physical cores would likely be much faster.
by BradleyS
Sun Jan 19, 2020 3:38 pm
Forum: Benchmarks
Topic: Optimal cores for Apple 2160p60 4K HEVC Surround preset?
Replies: 9
Views: 176

Re: Optimal cores for Apple 2160p60 4K HEVC Surround preset?

For the most part, x265 overcomes those performance/scaling shortcomings.
by BradleyS
Sat Jan 18, 2020 10:48 am
Forum: Benchmarks
Topic: Optimal cores for Apple 2160p60 4K HEVC Surround preset?
Replies: 9
Views: 176

Re: Optimal cores for Apple 2160p60 4K HEVC Surround preset?

Some of the figures in this article might also be interesting: https://handbrake.fr/docs/en/latest/technical/performance.html I'd say mduell's are most applicable in this scenario. Can say from experience, x265 does work well with > 16 cores. Xeon 22 core is great for x265. If you're working with fu...
by BradleyS
Thu Jan 16, 2020 6:43 pm
Forum: Windows
Topic: Parallel queue implementation
Replies: 26
Views: 538

Re: Parallel queue implementation

We have an open issue for this: https://github.com/HandBrake/HandBrake/issues/1445

I believe this is being worked on for Windows at the moment.
by BradleyS
Sat Jan 11, 2020 12:57 pm
Forum: Command Line Interface And Scripting
Topic: command line to convert video and copy all audio tracks untouched
Replies: 5
Views: 143

Re: command line to convert video and copy all audio tracks untouched

HandBrake 1.3.0 uses "any" to mean any track and "und" to mean unknown language tracks. Prior to 1.3.0, "und" meant any.
by BradleyS
Wed Jan 08, 2020 10:30 pm
Forum: General Questions
Topic: Understanding denoising (NLMeans) paramters
Replies: 3
Views: 218

Re: Understanding denoising (NLMeans) paramters

As far as preserving more detail, you're probably at or close to the algorithm's limit. You could try changing the patch size and search radius to 5 and 5 instead of 7 and 3; it might be better and it might be worse for your source. Encoding time should be about the same, maybe slightly faster.
by BradleyS
Wed Jan 08, 2020 10:25 pm
Forum: General Questions
Topic: Understanding denoising (NLMeans) paramters
Replies: 3
Views: 218

Re: Understanding denoising (NLMeans) paramters

4.0 is the chroma strength, cb-strength=4.0

Cb will inherit all other parameters from Y, and Cr from Cb.
by BradleyS
Wed Jan 08, 2020 10:19 pm
Forum: General Questions
Topic: HandBrake 1.3.1 discussion thread
Replies: 4
Views: 802

Re: HandBrake 1.3.1 discussion thread

It sure doesn't.
by BradleyS
Tue Jan 07, 2020 5:58 am
Forum: General Questions
Topic: Encode start time search
Replies: 5
Views: 205

Re: Encode start time search

If I'm not mistaken, the previews locations are calculated at a byte offset, not a time offset. Precise time start requires scanning the source, as skipping to a byte offset is no guarantee of time.
by BradleyS
Mon Jan 06, 2020 5:11 pm
Forum: Windows
Topic: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate
Replies: 46
Views: 2222

Re: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate

TL;DR While we generally try to avoid custom settings and stick to encoder presets, in the case of x265 there isn't a preset that creates the quality/speed/compression we thought would be most beneficial. And all x265 presets use strong-intra-smoothing which is not good for high quality encodes at a...
by BradleyS
Mon Jan 06, 2020 5:06 pm
Forum: Windows
Topic: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate
Replies: 46
Views: 2222

Re: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate

strong-intra-smoothing is what it sounds like, a bilinear smoothing filter on intra frames to limit bit rate spikes. Intra frames being of course, what other frames are based on. It's basically reducing the quality of your video before you even start encoding. You don't want this for high quality en...
by BradleyS
Mon Jan 06, 2020 4:38 pm
Forum: Windows
Topic: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate
Replies: 46
Views: 2222

Re: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate

It's important to note that HandBrake is not forcing an aq-mode globally. This only affects the official presets that use x265, all of which are geared toward relatively high quality encodes. Simply choosing the x265 encoder on the video tab will not set a specific aq-mode.
by BradleyS
Mon Jan 06, 2020 4:32 pm
Forum: Windows
Topic: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate
Replies: 46
Views: 2222

Re: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate

We already do so in the case of strong-intra-smoothing for one. In this case, the commit message is probably most helpful: https://github.com/HandBrake/HandBrake/commit/e6d29a01a35ff3c942b4a1e5693bf6b9e678cc37 "We have received numerous reports about x265 in HandBrake 1.3.0 creating ~30% larger file...
by BradleyS
Sat Jan 04, 2020 10:54 pm
Forum: Windows
Topic: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate
Replies: 46
Views: 2222

Re: H265 in new HandBrake 1.3.0 gives 30-60% higher bitrate

Official presets in HandBrake 1.3.1 (just released) set aq-mode 1 via the additional encoder options.
by BradleyS
Fri Dec 20, 2019 3:31 am
Forum: General Questions
Topic: Batch conversion, but need to re-edit each file due to subtitle PGS format
Replies: 3
Views: 209

Re: Batch conversion, but need to re-edit each file due to subtitle PGS format

Adjust subtitle settings in the Selection Behavior dialog and then save a new preset fir batch encoding.
by BradleyS
Fri Dec 20, 2019 3:27 am
Forum: Windows
Topic: Custom video size being ignored when bulk adding to queue
Replies: 6
Views: 180

Re: Custom video size being ignored when bulk adding to queue

Since the source is DVD, I suspect the automatic cropping of black bars is biting you here. Set cropping to manual and all values to 0 (zero) and save a new preset to use for batch encoding.
by BradleyS
Mon Dec 16, 2019 7:36 pm
Forum: Devices and Presets
Topic: Tune custom NLMeans parameters
Replies: 16
Views: 476

Re: Tune custom NLMeans parameters

Where an odd number is required, an even supplied value is decremented by 1. More temporal frames can be very bad for chroma and introduce smearing since there's no compensation for movement. Luma, not as bad, but you won't get good matches either with high motion. 2-3 is usually good for film. The ...
by BradleyS
Mon Dec 16, 2019 3:18 pm
Forum: Devices and Presets
Topic: Tune custom NLMeans parameters
Replies: 16
Views: 476

Re: Tune custom NLMeans parameters

I wouldn't exceed 3 or so temporal frames for film content. Try reducing 8 to 3 and increasing the spatial search range.