What Is Rf In Handbrake. If you want more detail about the RF value and CQ, I’ve got a

If you want more detail about the RF value and CQ, I’ve got a separate writeup to help clarify all of that (with charts) at Handbrake RF + slower speeds = craziness. You're going to project a 480p or 4K movie on the same size TV, so the lower the resolution, the lower the RF needs to go. May 5, 2016 · Video: H. I break it down here with screenshots at various settings, a video, On the Videotab, increase video quality by adjusting the control toward the right, and reduce video quality by adjusting the control toward the left. Audio: English DTS AC3 Passthru. It is a value that determines the trade-off between video quality and file size. Video Information Jun 9, 2024 · Different enconding options available in handbrake HandBrake is a versatile, open-source video transcoder that allows you to convert video from nearly any format to a selection of modern, widely … Differences between encoder quality scales Most of HandBrake’s official Presets use the x264, x265, or SVT-AV1 video encoders with a Constant Rate Factor, sometimes abbreviated CRF or simply RF. " 11K subscribers in the handbrake community. (684kbps 7. use a higher RF number. Feb 2, 2017 · An in-depth Guide/Tutorial explaining all the x264 intricacies and advanced settings offered in handbrake advanced tab. For standard definition (480p/576p), an RF value between 18 and 22 works well. Why does Handbrake have an average bitrate setting in the first place since RF seems to always be preferred? And why does it use RF values as an option instead of constant bitrate? Wouldn't these be the same? When HandBrake uncompresses the video prior to conversion, the quality lost when the DVD was made is still gone. With a constant quality RF encoding, the source file determines the final file size relative to the RF number you choose. Apr 1, 2025 · RF in HandBrake stands for Rate Factor, which is a measure of the video quality. To reduce video quality, adjust the quality control toward the left. If you went with Average Bitrate, your file size has already been “decided”. RF 20-24 for 1080p Full High Definition. Sep 7, 2025 · HandBrake is widely used by editors to re-encode their finished edits. Since 2160p video is much higher quality, why is it recommending a higher RF? RF 18 will give pretty much the same quality as the original rip while trimming down the size by a lot. This article will offer HandBrake users the best constant quality settings (RF values) while working with DVDs, Blu-rays, SD, 720p, 1080p HD and 4K UHD videos. If I really want good quality RF=20, by RF=18 you can barely see the improvement even in a side by side comparison. This is for a dataset of 1 movie sample. com/comparing-x264 RF 18 will give pretty much the same quality as the original rip while trimming down the size by a lot. Except when it doesn't. Mar 20, 2023 · To put it simply, lower RF numbers means more bits in the output video, and higher RF numbers means fewer bits in the output video. true H. The default value is set to “20” which can be considered adequate for a DVD copy. See the System requirements article for minimum hardware requirements to use HandBrake. Apr 1, 2025 · But what does RF stand for in HandBrake, and how does it impact the quality of your videos? RF, or Rate Factor, is a setting in HandBrake that controls the quality of the output video. The concept of "RF" values can be tricky for a newcomer to wrap their head around. Subreddit for AV1 video codec If you want more detail about the RF value and CQ, I’ve got a separate writeup to help clarify all of that (with charts) at Handbrake RF + slower speeds = craziness. Changing this won’t affect the file size any further. Lower the RF value, higher Using the quality control Most of HandBrake’s official Presets use the x264 video encoder and a constant quality setting between RF 18 and 24. If you then go back and make a 2-pass VBR encode at that same average bitrate the two Dumb question Guys - reading through the handbrake manual and don't understand this at this page HandBrake Documentation — Adjusting quality RF 19-23 for 720p High Definition. Aug 7, 2025 · HandBrake Best Constant Quality Settings for SD, HD, 4K, DVD, Blu-ray: Constant quality RF value ranges from 51 to 0. Other than using handbrakes official quality RF recommendations there isn’t a way to accurately measure quality besides bitrate, if you don’t want to waste any bits then your best bet is to take a clip and try different RF values and gradually adjust until you get the highest value that you see no difference win quality of, and then -1 to Dec 30, 2016 · HandBrake has a slider at “Constant Quality” allowing you to set an RF value, between 50 (low quality) and 0 (highest quality). A lower RF number means higher quality. As a guide I run test encodes at an RF of 20 then once I’ve seen the results it’s easier to work out whether the value is too high or too low. Reasons you’ll love HandBrake: The HandBrake Documentation site recommend these settings: RF 18-22 for 480p/576p Standard Definition RF 19-23 for 720p High Definition RF 20-24 for 1080p Full High Definition RF 22-28 for 2160p 4K Ultra High Definition I'm a little confused: why would you set a higher RF (lower quality) for a High Definition video? Shouldn't it be the opposite? When HandBrake uncompresses the video prior to conversion, the quality lost when the DVD was made is still gone. You'll find out what works for your time, source, and space. It's up to you to adjust the RF to the balance that suits you. removed. 8. e. Increasing the RF number will increase compression, which in turn will reduce the file size and, as a natural trade-off, also reduce the picture quality. All other things being equal, more bits equals more quality. There are many unofficial mirrors of HandBrake and while most of them offer legit versions of HandBrake, there are a few that don't. But a RF of 18 (lower number = higher quality) looks better to me for a few megabytes more. fr), this sub is for information exchange and helping out, not affiliated with the developers. Jan 11, 2017 · This question is based on the software Handbrake. . You can think of the RF control in HandBrake as a quality control. Look for a better compromise setting. HandBrake is a open-source tool, built by volunteers, for converting video from nearly any format to a selection of modern, widely supported codecs. Editors are chiefly concerned with three things: Visual quality of the encoded video Time taken to do the encoding File size of encoded video This guide is to explain the following settings, as well as general patterns in When HandBrake uncompresses the video prior to conversion, the quality lost when the DVD was made is still gone. For these encoders, a lower RF number produces higher quality video, and a higher RF number produces lower quality video. No, more overkill. You can find the full writeup with further details at http://mattgadient. A higher RF value will lower the file size. The closest to this would be a setting of AV1 (SVT), RF 39, preset 6 with a resulting quality of 91. Begin by making small adjustments; plus or minus a few steps is usually noticeable. Jul 4, 2024 · RF (Rate Factor) is a crucial parameter in HandBrake, a popular video transcoding software. RF 22-28 for 2160p 4K Ultra High Definition. Full HD (1080p) videos look great with RF 20 to 24, while 4K Ultra HD (2160p) performs best with RF 22 to 28. The settings in this tab are for those who like to tweak and fine tune the encoder's settings for the video. HandBrake’s hardware video encoders also benefit from modern GPU hardware. It's simply a matter of working out a suitable RF value. 265 MKV 1080p30 preset with an RF of 20 gets me similar drops in size. Most people settle for round RF 15 to 21. will all result in a much bigger file size. 1) So as it stands, Handbrake is telling me, it will take 25 hours to encode a 2hours and 20 minutes Blu ray movie. As already stated distortion (artefacts) is more noticeable at lower resolutions and so perceptively lower resolutions need higher quality (lower RF) to retain an equivalent perceived detail. Dec 30, 2016 · HandBrake has a slider at “Constant Quality” allowing you to set an RF value, between 50 (low quality) and 0 (highest quality). Probably not enough, as you are more than fine going into RF 19 or even 20 and still get the best quality, or at least not be able to tell the difference. It is consistent with what google tell us about VMAF:"Real Networks wrote a white paper in the subject and they found that VMAF 93 is a good value to target, but everything with an average over 90 will look good. When you use RF 0 quality with x264, you’re telling it to losslessly preserve the decoded, uncompressed video feed, not to losslessly preserve the DVD. Details on the confusing mess that You can think of RF as the inverse of quality per pixel. It is currently stored in ISO files, typically with the menus, etc. Sep 8, 2025 · Discover the best AV1 encoding settings in HandBrake, expert tips for optimal results, and quick solutions to common errors to enhance your video conversion. When using RF (Constant Quality), setting slower speeds in Handbrake results in smaller files. From Handbrake 's Recommended settings for the SVT-AV1 encoder: RF 22-32 for 480p/576p Standard Definition RF 25-35 for 720p High Definition RF 25-35 for 1080p Full High Definition RF 25-40 for 2160p 4K Ultra High Definition But I haven't found recommended settings for Intel QSV AV1 encoder Jun 9, 2024 · Different enconding options available in handbrake HandBrake is a versatile, open-source video transcoder that allows you to convert video from nearly any format to a selection of modern, widely … Handbrake guidelines recommend an RF factor between 22 and 28 for UHD content (for x264/x265). Handbrake's own website says increasing the number improves the quality HB website does not say this. The highest quality setting is RF=0 -- that will get you lossless encoding and you will get gigantic files. At RF 20, auto settings, and preset to "slow", I'm doing about 1/3 the file size, often less, as good as 1/4 the size. Handbrake recommends 25-30 for 720p (and up) for AV1, but on RF 25 I notice very slight compression artifacts on presets 5 and 6, which is what I use. The lower the RF value, the higher the quality. Will So for the same RF value, fast, medium and slow encodes will generally produce three different qualities of similar, but not identical size encodes. RF determines the trade-off between video quality and file size in HandBrake. A slower encode more accurately analyzes the source and is given more information to encode, frequently resulting in a higher bit rate (if using the same RF value as Ultra Fast). 265 - 27 - (speed) preset medium produces a quality of 91. Ultimately though, the source file determines the extent to which slow, fast, and medium encodes differ from one another. 265 (x265), Constant Quality=20 RF Preset: very slow (did this because somewhere i read it makes it a very small file. The H. To increase video quality, adjust the quality control toward the right. In theory one would need to make a meta analysis of many different Dec 6, 2024 · How to use HandBrake to convert videos for Plex? What are the best HandBrake settings for Plex? All the answers are covered in this post. Nothing you would notice if you weren’t inspecting each frame very closely though. 41; which cuts file size by 1/3rd. 34, where qualities above a score 93 out of 100 VMAF are basically indistinguishable. Aug 8, 2023 · The lowest you typically would ever want to go is around the mid-teens and I typically encode with H. What is the difference between CQ and RF in Handbrake? And if I am willing to sacrifice storage space (as long as the resulting file is still worth the hassle smaller than remux), what CQ number for 4K HDR movies would be eqivalent to a decent (I assume 20 for 4K) RF number of x265? 89 votes, 46 comments. 7K subscribers in the AV1 community. Nov 26, 2009 · I'm going to take the plunge by encoding my DVD library into h. I have two questions: Is there a best practices guide that details settings, etc. You should compare a few HQ and SuperHQ presets with 264 vs 265 encoders, medium vs slow speed, audio etc. Is this normal? Are there any other recommended settings? Nov 26, 2019 · I believe Handbrake recommends RF 20-23 for HD sources, but I've found RF 20 to be noticeably better than 23, at least to my eyes, all other settings being equal. A lower RF number produces higher quality video, and a higher RF number produces lower quality video. You can test your settings by encoding and watching short clips using HandBrake’s Preview feature. Constant Quality encoding is entirely dependent upon the source to determine whether a given RF value will or won’t do what you want, so it’s not possible to state a single value for all encodes. 265 RF=24. Jun 26, 2025 · What is the best video setting in HandBrake? Choosing the best video settings in HandBrake depends on your resolution. This subheading delves into the role and importance of RF in video compression. RF doesn't make any promises as to file size, and content of the video has a ton of impact on file size. You'll always get the quality you want and the bitrate will be exactly what's needed for that quality. Grain, leaves, trees, water, lots of motion etc. I. For HD videos (720p), aim for RF 19 to 23. com/comparing-x264 A lower RF number produces higher quality video, and a higher RF number produces lower quality video. ? I would like to maintain top quality while reducing file size. When HandBrake uncompresses the video prior to conversion, the quality lost when the DVD was made is still gone. A quick comparison of different RF values used to encode a short video clip from within Handbrake. Please be cautious of possible scams. It is a measure of the video’s bitrate, which is the amount of data used to represent one second of video. A slow encode of the same bitrate (file size, not RF value), as an Ultra Fast encode, will always look superior. fr), this sub is… A lower RF number produces higher quality video, and a higher RF number produces lower quality video. 264. This is the unofficial subreddit for the handbrake video conversion software (handbrake. HandBrake’s software video encoders, video filters, audio encoders, and other processes benefit from fast CPU and memory. Being a newbie to video editing/conversion and Handbrake, I understand that the RF values are used to select quality.

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