Search found 5442 matches

by JohnAStebbins
Thu Sep 26, 2019 3:55 pm
Forum: *nix
Topic: Sysctl.conf optimization?
Replies: 2
Views: 134

Re: Sysctl.conf optimization?

If you are looking to squeeze every last bit of performance out of your system, I recommend looking that the clear linux distro created by Intel. Some benchmarks are here https://www.phoronix.com/scan.php?page=article&item=amd-rome-clear&num=3 I don't know what all the particular changes they have m...
by JohnAStebbins
Tue Sep 17, 2019 3:58 pm
Forum: Windows
Topic: .mpeg to .mp4 produces longer file
Replies: 8
Views: 263

Re: .mpeg to .mp4 produces longer file

You're also using a fairly high bitrate for standard definition content (8Mbps). Try constant quality with a reasonable RF like 20 to 22.
by JohnAStebbins
Sun Sep 15, 2019 3:07 pm
Forum: Command Line Interface And Scripting
Topic: Batch/bulk merging/including of subtitles
Replies: 6
Views: 250

Re: Batch/bulk merging/including of subtitles

I don't know what "muxing" is. Muxing is the process of putting raw media streams (audio, video, subtitles, etc) into a container. Demuxing does the reverse, extracts them from the container. Remuxing demuxes and then muxes. HandBrake also transcodes the video. I.e. it decodes the raw video stream ...
by JohnAStebbins
Sat Sep 14, 2019 3:43 pm
Forum: General Questions
Topic: 'Interlace Detection' & 'Interlace'
Replies: 39
Views: 1219

Re: 'Interlace Detection' & 'Interlace'

Hey, John, p30-telecine is rare -- I've only run across one -- but if the need arises and the source is known to originate from 24fps, how can I convert it to p24? I assume I would need to split fields to i30 first. Is that best done by directly invoking ffmpeg? Would I need to do the whole p30-tel...
by JohnAStebbins
Fri Sep 13, 2019 7:48 pm
Forum: General Questions
Topic: 'Interlace Detection' & 'Interlace'
Replies: 39
Views: 1219

Re: 'Interlace Detection' & 'Interlace'

So, detelecine (i.e., fieldmatch+decimate) don't work with p30 sources, eh? Correct. But HandBrake has another filter that is always enabled whenever doing constant framerate encoding. It selectively discards frames with the least measured change when converting from a higher framerate to a lower f...
by JohnAStebbins
Fri Sep 13, 2019 12:06 am
Forum: General Questions
Topic: 'Interlace Detection' & 'Interlace'
Replies: 39
Views: 1219

Re: 'Interlace Detection' & 'Interlace'

Detelecine generates p24 output from p30-telecine source and i24 output from i30-telecine source I don't have the time right now to read your entire post. But no and no. Detelecine works with one and only one type of source material and that is i30. If that source is telecined content, it converts ...
by JohnAStebbins
Thu Sep 12, 2019 4:38 pm
Forum: General Questions
Topic: 'Interlace Detection' & 'Interlace'
Replies: 39
Views: 1219

Re: 'Interlace Detection' & 'Interlace'

Well... actually... it is, in a way. p24 is not interlaced whereas i30 is interlaced, so in a sense, detelecine is deinterlace. You are conflating multiple terms. detelecine and deinterlace are algorithms. interlacing and telecine are picture formats that both use interleaved fields. The detelecine...
by JohnAStebbins
Wed Sep 11, 2019 5:30 pm
Forum: General Questions
Topic: 'Interlace Detection' & 'Interlace'
Replies: 39
Views: 1219

Re: 'Interlace Detection' & 'Interlace'

Umm, detelecine isn't deinterlace
by JohnAStebbins
Tue Sep 10, 2019 10:21 pm
Forum: General Questions
Topic: 'Interlace Detection' & 'Interlace'
Replies: 39
Views: 1219

Re: 'Interlace Detection' & 'Interlace'

Without interlace detection, all frames are deinterlaced. Did you mean to write: "Without interlace detection, all frames are not deinterlaced"? If interlaced detection filter is not enabled and deinterlace filter is enabled, the deinterlace filter is applied to all frames. if interlaced detection ...
by JohnAStebbins
Tue Sep 03, 2019 9:45 pm
Forum: General Questions
Topic: 8-Bit Pipeline but 10 and 12 Bit encoding options ?
Replies: 13
Views: 472

Re: 8-Bit Pipeline but 10 and 12 Bit encoding options ?

The type of artefact I'm referring to is present with any of those sources, although you may not "SEE" in a properly set up viewing environment. It's most easily visible when looking closely at dark areas and becomes quite apparent if you increase brightness and contrast on your monitor or TV (not r...
by JohnAStebbins
Tue Sep 03, 2019 3:59 pm
Forum: General Questions
Topic: 8-Bit Pipeline but 10 and 12 Bit encoding options ?
Replies: 13
Views: 472

Re: 8-Bit Pipeline but 10 and 12 Bit encoding options ?

I use 10 bit because it does significantly decrease banding and provides better quality for filesize.
by JohnAStebbins
Mon Sep 02, 2019 4:36 pm
Forum: Mac
Topic: Problems with newest Handbrake version freezing
Replies: 6
Views: 256

Re: Problems with newest Handbrake version freezing

... I now use MAKEMKV to rip the DVD and then run it through Handbrake to compress it. Now I am having problems with that process working all the time ...
Does this mean that makemkv also freezes sometimes? That would indicate problems with the disc (dirty or damaged) or hardware.
by JohnAStebbins
Mon Sep 02, 2019 3:42 pm
Forum: General Questions
Topic: 8-Bit Pipeline but 10 and 12 Bit encoding options ?
Replies: 13
Views: 472

Re: 8-Bit Pipeline but 10 and 12 Bit encoding options ?

This post gives a simplified explanation of the process https://forum.handbrake.fr/viewtopic.php?f=6&t=36432&p=171379&hilit=frequency+domain#p171354 Basically there are round off errors when converting to and from frequency domain that are reduced when doing 10 bit encoding. I'm making a bit of a gu...
by JohnAStebbins
Thu Aug 29, 2019 3:17 pm
Forum: Mac
Topic: 4K UHD conversion.
Replies: 7
Views: 632

Re: 4K UHD conversion.

Out of curiosity: is it planned for Handbrake to pass through the metadata? "Plan" is kind of a strong word for what we do around here. It's on a wish list. I (or someone else) may find time to implement it someday. There is nobody currently working on it and no schedule for when someone might look...
by JohnAStebbins
Wed Aug 28, 2019 6:48 pm
Forum: Windows
Topic: Wrong video length
Replies: 12
Views: 359

Re: Wrong video length

Don't modify the "Range" option. Leave it set to "Chapters". Should result in the entire video getting encoded.
by JohnAStebbins
Wed Aug 28, 2019 6:30 pm
Forum: Windows
Topic: Wrong video length
Replies: 12
Views: 359

Re: Wrong video length

Ah, I see! This is an explanation! Is there an solution for this? Maybe encode the whole ts file into mp4 and then cut the mp4 file? Yes, that would be one way. I'm pretty sure ffmpeg would be able to simply cut and remux the mp4 file after encoding, but I don't know the exact command line to do so...
by JohnAStebbins
Wed Aug 28, 2019 6:14 pm
Forum: Windows
Topic: Wrong video length
Replies: 12
Views: 359

Re: Wrong video length

If you are using point-to-point encoding, i.e. setting "Range" to "Seconds", HandBrake is going to default the end time to what it thinks is the duration of the video. I'm not sure what the behaviour on the windows gui is, but the linux gui will let you manually extend that to up to twice the detect...
by JohnAStebbins
Wed Aug 28, 2019 6:03 pm
Forum: Windows
Topic: Wrong video length
Replies: 12
Views: 359

Re: Wrong video length

Code: Select all

[18:23:40]    + title 1, start 03:56:20.00 stop 03:56:22.00
You told it to exit early. So that log doesn't show what happens at the end where you claim it is truncating the file
by JohnAStebbins
Thu Aug 22, 2019 4:04 pm
Forum: Windows
Topic: Incomplete Download
Replies: 3
Views: 167

Re: Incomplete Download

There was an error while reading the DVD. Try cleaning the disc. Also, try ripping with other sofware like MakeMKV.
by JohnAStebbins
Thu Aug 22, 2019 3:58 pm
Forum: Windows
Topic: .tts subtitles
Replies: 2
Views: 162

Re: .tts subtitles

HandBrake doesn't support DVB subtitles which is what your source has.
by JohnAStebbins
Mon Aug 19, 2019 8:37 pm
Forum: General Questions
Topic: Ryzen 9 3900x X264 not maxing out all cores
Replies: 36
Views: 1365

Re: Ryzen 9 3900x X264 not maxing out all cores

I forgot to address broadcast. Broadcast is often mixed content due to the advertisements. It can even change resolutions on the fly. When dealing with broadcast content, it is best to leave decomb enabled unless you pre or post edit out advertisements.
by JohnAStebbins
Mon Aug 19, 2019 8:28 pm
Forum: General Questions
Topic: Ryzen 9 3900x X264 not maxing out all cores
Replies: 36
Views: 1365

Re: Ryzen 9 3900x X264 not maxing out all cores

To be fair, iterlacing is a convoluted subject. For example, by the spec *all* DVDs are interlaced. But most movies on DVD are encoded with soft telecine which is 100% reversible. So you can easily retrieve the original progressive frames (which HandBrake does for soft telecined content). Some BDs a...
by JohnAStebbins
Fri Aug 16, 2019 6:22 pm
Forum: *nix
Topic: No Sound on Tumbleweed
Replies: 1
Views: 196

Re: No Sound on Tumbleweed

You are using an unsupported build of HandBrake that is linked against an incompatible version of ffmpeg's libswresample. This is very common of distro builds. They modify our build system and break things in unpredictable ways. See https://handbrake.fr/docs/en/latest/get-handbrake/where-to-get-hand...
by JohnAStebbins
Fri Aug 16, 2019 3:59 pm
Forum: General Questions
Topic: Ryzen 9 3900x X264 not maxing out all cores
Replies: 36
Views: 1365

Re: Ryzen 9 3900x X264 not maxing out all cores

Threading model description and benchmarks from the developers of x264
https://code.videolan.org/videolan/x264 ... hreads.txt
by JohnAStebbins
Wed Aug 14, 2019 6:39 pm
Forum: General Questions
Topic: Extreme Variation in File Size
Replies: 10
Views: 472

Re: Extreme Variation in File Size

I've seen examples, and while it does remove film grain, it also tends to make the images look a bit flat and smeared, at least in my opinion. Have you looked at examples of the NLMeans filter specifically? This filter is very good at removing noise without the side effects you are concerned about....