Search found 5583 matches

by JohnAStebbins
Sat Aug 22, 2020 2:11 pm
Forum: Windows
Topic: Video and audio not synchronized
Replies: 8
Views: 342

Re: Video and audio not synchronized

HandBrake should be recognizing that there is a large timestamp gap and "fill" it for all but audio passthrough tracks. For the video stream it would extend the duration of the frame before the gap. For audio streams, it inserts silence buffers if it is encoding audio . If the audio is passthrough t...
by JohnAStebbins
Thu Aug 06, 2020 2:00 pm
Forum: Devices and Presets
Topic: Encoder profile and level
Replies: 4
Views: 1013

Re: Encoder profile and level

zgmf_x42s_destiny wrote: Wed Aug 05, 2020 10:47 pm so if i set the profile and level to "auto" instead of "main and 4.0" (for example), the output file will usually have better quality? but increase longer encode time and file size?
Potentially. Depends on what other settings you are using.
by JohnAStebbins
Wed Aug 05, 2020 2:06 pm
Forum: Devices and Presets
Topic: Encoder profile and level
Replies: 4
Views: 1013

Re: Encoder profile and level

profile and level limit the features the encoder uses. They are typically enabled to ensure that the output is compatible with players that support up to some specific profile and level (i.e. not all players support all features of the codec spec). The more advances settings that are enabled when yo...
by JohnAStebbins
Sun Aug 02, 2020 10:02 pm
Forum: Windows
Topic: Converting MP4 to AVI on Windows
Replies: 3
Views: 146

Re: Converting MP4 to AVI on Windows

HandBrake doesn't support AVI output.
by JohnAStebbins
Sun Aug 02, 2020 10:01 pm
Forum: *nix
Topic: Quick Sync Video not working on Chrome OS
Replies: 2
Views: 187

Re: Quick Sync Video not working on Chrome OS

Not sure what's preventing it from loading, but it's silently failing initialization somewhere. When successful initialization happens you would see this in the log: [15:57:34] hb_display_init: attempting VA driver 'iHD' libva info: VA-API version 1.5.0 libva info: va_getDriverName() returns 0 libva...
by JohnAStebbins
Mon Jul 27, 2020 3:29 pm
Forum: General Questions
Topic: Questions About Native and Modified Resolutions
Replies: 4
Views: 204

Re: Questions About Native and Modified Resolutions

I forgot to answer a couple of your questions. Why 362 height? HandBrake automatically crops the black bars. Why 853 width? When the video is played back, the storage resolution is scaled by the pixel aspect to produce the output resolution in order show the video at the correct display aspect . So ...
by JohnAStebbins
Mon Jul 27, 2020 3:17 pm
Forum: General Questions
Topic: Questions About Native and Modified Resolutions
Replies: 4
Views: 204

Re: Questions About Native and Modified Resolutions

More details... DVD supports 2 and only 2 video display aspect ratios. 4:3 and 16:9. In each case, the resolution is the same 720x480 (NTSC discs) or 720x576 (PAL discs). If the pixel aspect of NTSC were 1:1, the display aspect would be 720/480 which reduces to 3:2. You'll note that this is not the ...
by JohnAStebbins
Tue Jun 23, 2020 1:47 pm
Forum: General Questions
Topic: Interlacing and telecine on blurays
Replies: 4
Views: 227

Re: Interlacing and telecine on blurays

25fps video won't be NTSC telecined, which is what HandBrake's detelecine filter is for. It sounds like it's interlaced HD. You'll be able to tell by watching a moving object closely in the video and look for combing.
by JohnAStebbins
Mon Jun 22, 2020 10:15 pm
Forum: General Questions
Topic: Sound is louder on one side
Replies: 9
Views: 317

Re: Sound is louder on one side

Just do AC3 5.1. Pro logic II is a downmix to 2 channels with other 3 channels matrixed in to those 2 channels using fancy phase shift maths. It's very lossy.
by JohnAStebbins
Mon Jun 22, 2020 4:21 pm
Forum: General Questions
Topic: Sound is louder on one side
Replies: 9
Views: 317

Re: Sound is louder on one side

The implementation of pro logic matrixing in HandBrake is not very good and causes such problems. I don't recommend using it. Do you have old equipment that only supports analog upmixing of pro logic for multi-channel? Anything built in the last 20 years is going to have much better all-digital mult...
by JohnAStebbins
Sun Jun 21, 2020 3:14 pm
Forum: Windows
Topic: x265 codec produced video with banding while 10bit/12bit codec at same settings doesn't, even though the source is 8bit.
Replies: 16
Views: 639

Re: x265 codec produced video with banding while 10bit/12bit codec at same settings doesn't, even though the source is 8

I use Fire TV devices for most of my playback and they support h.265 10bit very well. They do not support h.264 10bit (which I found out after encoding several videos without first testing :oops:) . So be sure to test a sample on your target player(s) first. In general h.265 10bit is better supporte...
by JohnAStebbins
Sun Jun 21, 2020 2:00 pm
Forum: Windows
Topic: x265 codec produced video with banding while 10bit/12bit codec at same settings doesn't, even though the source is 8bit.
Replies: 16
Views: 639

Re: x265 codec produced video with banding while 10bit/12bit codec at same settings doesn't, even though the source is 8

Here's a simplified explanation of what happens during the encode that may shed some light on why 10bit prevents banding better even when the source is 8bit. viewtopic.php?p=171354#p171354
by JohnAStebbins
Sat Jun 20, 2020 9:06 pm
Forum: *nix
Topic: Quick Sync
Replies: 5
Views: 2207

Re: Quick Sync

The Intel MediaSDK plugin for HandBrake is also available on flathub.
by JohnAStebbins
Sat Jun 20, 2020 9:03 pm
Forum: General Questions
Topic: Dropping from 60p to 30p with Handbrake
Replies: 29
Views: 934

Re: Dropping from 60p to 30p with Handbrake

Thanks for the sample. There's definitely a problem here. I'm a bit busy entertaining guests, so it'll be a couple days before I can work out a solution and do some regression testing to be sure I don't break other use cases. Stay tuned, I'll let you know when there's something to try out in the nig...
by JohnAStebbins
Wed Jun 17, 2020 9:37 pm
Forum: General Questions
Topic: h264 vs x264 in terms of color banding
Replies: 5
Views: 341

Re: h264 vs x264 in terms of color banding

I don't use adobe, so can't compare. But banding is a result of quantization which is part of the compression process. Some encoders will more aggressively quantize to achieve the target settings than others. 8bit encoders suffer more from this than 10 or 12 bit encoders. Pick a short sample (or use...
by JohnAStebbins
Wed Jun 17, 2020 6:18 pm
Forum: Benchmarks
Topic: i7-10700 vs Ryzen 7 3700x
Replies: 7
Views: 556

Re: i7-10700 vs Ryzen 7 3700x

HandBrake has support for AMF (AMD), NVENC (NVIDIA), and QSV (Intel) hardware encoding that uses a dedicated hardware unit that happens to reside on the same silicon as the GPU. Hardware encoding is fast, but lower quality than the sofware encoders HandBrake uses. Of the 3 supported hardware encoder...
by JohnAStebbins
Tue Jun 09, 2020 2:30 pm
Forum: General Questions
Topic: Video is not compressed
Replies: 15
Views: 556

Re: Video is not compressed

According to your log, the cumulative bitrate of your original is 10509 kbps and the cumulative bitrate of the encoded video is 9061 kbps. So if the encoded file is not somewhat smaller, then your source video lies about it's bitrate. In any case, this is a pretty high bitrate for HD video. So I'm w...
by JohnAStebbins
Wed Jun 03, 2020 2:46 pm
Forum: Windows
Topic: Encoded video terrible color and sharpness
Replies: 12
Views: 527

Re: Encoded video terrible color and sharpness

Issue 2561 was fixed in 1.3.2 and is the only one that should affect this particular encode. Issue 2859 should only be triggered when crop/scale and one of our other filters are both enabled. The encode in the posted log does not crop or scale. So if a nightly build fixes this, I would be a bit conf...
by JohnAStebbins
Mon Jun 01, 2020 5:09 pm
Forum: Devices and Presets
Topic: Best settings for bluray rips?
Replies: 10
Views: 888

Re: Best settings for bluray rips?

Does your playback environment support h.265 10bit? If so, do some tests with x265 10bit encoding. It will generally reduce blockiness that often shows up in darker scenes with 8bit encoding. For the samples that encoded on the larger side, try those samples again with the NLMeans denoise filter. Ev...
by JohnAStebbins
Thu May 28, 2020 6:23 pm
Forum: Devices and Presets
Topic: Best Settings for Home Movies
Replies: 6
Views: 568

Re: Best Settings for Home Movies

I'm surprised how large your test encode at reduced resolution is coming out. May need to reduce the quality a bit on the RF slider. Is the camera generating grainy video? Low light can result in a lot of grain. If so, the NLMeans denoise filter will clean that and reduce file sizes. Even if there ...
by JohnAStebbins
Tue May 26, 2020 4:28 pm
Forum: Mac
Topic: Not so much 4K video compatible.
Replies: 40
Views: 2157

Re: Not so much 4K video compatible.

It should be noted that both versions will play fine from a computer. They will need to be observed via a streaming device such as AppleTV on an external display to see the differences (I hope). Do I understand you right? You are saying there is no distortion when playing back on your computer and ...
by JohnAStebbins
Tue May 05, 2020 2:05 pm
Forum: Windows
Topic: Handbrake-CLI - Invalid preset
Replies: 14
Views: 676

Re: Handbrake-CLI - Invalid preset

Should be fixed in the next nightly build https://github.com/HandBrake/HandBrake/commit/6fbe60b266fed099f49616ecef34db88b6bb3f4b We may want to spin a 1.3.3 release soon since this is an interface bug that will affect pretty much everyone useing the CLI. Turns out I didn't really bust it. It was alr...
by JohnAStebbins
Tue May 05, 2020 1:44 pm
Forum: Windows
Topic: Handbrake-CLI - Invalid preset
Replies: 14
Views: 676

Re: Handbrake-CLI - Invalid preset

Interesting, it should work without the full path (category prefix). Will investigate. Glad you got it working with the workaround. :) Oh, *insert favourite expletive*. I may have inadvertently busted this. I made a "fix" to how presets are searched for and didn't test this case. *expletive**explet...
by JohnAStebbins
Tue May 05, 2020 1:40 pm
Forum: General Questions
Topic: Settings to Optimize for Grayscale?
Replies: 2
Views: 239

Re: Settings to Optimize for Grayscale?

Seems like a lot of bandwidth could be saved when I know the material is gray-only Only if it's "dirty" gray. I.e. if it's an unclean transfer that has significant low level noise in the color components, then it'll use quite a lot more space if you don't enable the grayscale filter. But if it's cl...