Search found 1860 matches

by BradleyS
Thu Feb 06, 2020 6:24 pm
Forum: Mac
Topic: Constant Rate Factor vs. Constant Framerate and other video controls
Replies: 2
Views: 785

Re: Constant Rate Factor vs. Constant Framerate and other video controls

The section of the documentation you're referring to is focused on the most common encoding workflow, and most of those controls shouldn't be changed. We plan to add more advanced fine tuning information in another section down the road. I'm sure someone will be happy to explain the frame rate and q...
by BradleyS
Wed Jan 29, 2020 4:20 pm
Forum: Command Line Interface And Scripting
Topic: CLI arguments for best quality, lowest file size
Replies: 15
Views: 4053

Re: CLI arguments for best quality, lowest file size

x265 is good at two things: low bit rate encodes, and Ultra HD encodes.
by BradleyS
Wed Jan 29, 2020 7:15 am
Forum: Windows
Topic: Problem with video encoding on AMD 3400G
Replies: 2
Views: 645

Re: Problem with video encoding on AMD 3400G

Unfortunately, this is common for transport streams, especially broadcast recordings. Some people have had good luck using VideoReDo's quick stream fix before encoding with HandBrake.
by BradleyS
Tue Jan 28, 2020 9:43 pm
Forum: Command Line Interface And Scripting
Topic: CLI arguments for best quality, lowest file size
Replies: 15
Views: 4053

Re: CLI arguments for best quality, lowest file size

Glad you found something you like.

You might find this interesting: https://handbrake.fr/docs/en/1.3.0/tech ... mance.html

One thing to note, while slower encoder presets result in smaller file sizes with x264 (which seems sane), the opposite is true with x265 (ummm). ;)
by BradleyS
Tue Jan 28, 2020 2:01 pm
Forum: Command Line Interface And Scripting
Topic: CLI arguments for best quality, lowest file size
Replies: 15
Views: 4053

Re: CLI arguments for best quality, lowest file size

https://github.com/HandBrake/HandBrake/ ... st.c#L2286

That's because we kept them around for compatibility. They're quite old and deprecated so I recommend the newer syntax.
by BradleyS
Tue Jan 28, 2020 4:09 am
Forum: Command Line Interface And Scripting
Topic: CLI arguments for best quality, lowest file size
Replies: 15
Views: 4053

Re: CLI arguments for best quality, lowest file size

https://handbrake.fr/docs/en/latest/cli ... rence.html

Some of the options you're using don't exist in HandBrake. You probably mean --encoder-preset and the like.
by BradleyS
Wed Jan 22, 2020 10:47 am
Forum: Windows
Topic: Fix stutter caused by source/capture different FPS?
Replies: 6
Views: 1101

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: 1101

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: 48
Views: 10378

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: 48
Views: 10378

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: 33
Views: 32940

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: 33
Views: 32940

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: 33
Views: 32940

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: 29
Views: 7928

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: 1951

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: 885

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: 885

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: 7
Views: 14673

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: 924

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: 48
Views: 10378

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: 48
Views: 10378

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: 48
Views: 10378

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: 48
Views: 10378

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...
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: 48
Views: 10378

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.