Also note that the highest marker on this chart is 0.98, compared the total average charts 0.995. But that is all hypothetical. However, Im really only dealing with 1080p rips Curious if you have any data on the difference between Medium and Slow settings at 1080p? @llogan. Those other encoders might be better - I haven't studied that PDF closely. But that's probably not what you want. It can save up to 20-50% in size compared with H264 codecs retaining the same quality level. At this point, it would be imperative to mention that decoders have specific constraints, such as expected input resolutions, supported codecs, etc, and as such, it's recommended that in production, to determine and validate the need for hardware-accelerated decoders as failure at this stage results in a failed encode and is unrecoverable. But the quality is not as good as expected. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. What's the difference between a power rail and a signal line? - Code Calamity, Animated AVIF is finally coming to Firefox, AMD improves video encoding yet again! Your mileage will definitely vary, based on your source content, filter chains in use, specific pltform configuration variables (such as your GPU and driver versions), etc. if you don't, the encoder will choose on for you. If it doesnt have HDR, the time to encode it doesnt make sense to me as it will take over twice as long vs H.264. Best settings for converting from h264 to hevc? Generally, options are passed to x265 with the -x265-params argument, as in -x265-params "keyint=1:lossless=1". from the chart SSIM difference is very low. Why does Jesus turn to the Father to forgive in Luke 23:34? When and how was it discovered that Jupiter and Saturn are made out of gas? A home for professional coders articles, opinions and ideas. What looks good today may not look so good in the future on a new display. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? how to use FFMPEG to transcode h264 to h265 on Ubuntu 12.04? On the section of video I chose, x264 needed considerably more bitrate to achieve the same score. My first step is to convert images into yuv format: ffmpeg -f image2 -i "C:\DATA FOLDER\images%d.png" video.yuv And I try to convert it as a .mkv file, losslessly: x265 uses CRF 18 by default. By Edgewall Software This is why the duplicate flag has been declined. Afterwards compared them to the original using the Structural Similarity Index (SSIM). Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. When the device you are going to watch it on doesnt support it. ffmpeg creates large compressed files for tiny videos? And one last thing is -tag:v hvc1 that makes video work on iOS and macOS devices. There is currently a serious lack of data on compressing 4K HDR videos out there, so I took it upon myself to get learned in the ways of the x265 encoding world. Using ffmpeg for streaming video composition from Python : why the sound is cut only when streaming into a mp4 file ? Asking for help, clarification, or responding to other answers. We have some hard date, lets use it. You can remove this scale=858:482: from my scripts. Reddit and its partners use cookies and similar technologies to provide you with a better experience. I dont use x265 for anything besides 4k HDR content. I use both as .bat files. I know from some small scale testing that the gaps between the different presents will remain similar (newer article has better graph for that). We haven't used it in VP9 WebM because its architecture does not require this and always guarantees progressive loading. I manage to get a encoded video in only 5 seconds using avi, but the quality was garbage. rev2023.3.1.43269. PTIJ Should we be afraid of Artificial Intelligence? There are two most popular tools for video optimization -Handbrake andffmpeg. Modern web development every year applies new standards for performance. The only point of using x265 is for compatibility, lossless and HDR content, otherwise, even at SDR 4k x264 will fare better if given enough bitrate. How can I recognize one? Acceleration without force in rotational motion? Visit the Trac open source project athttp://trac.edgewall.org/, Last modified on Oct 5, 2021, 11:32:18 AM. It seems like a flaw in the encoder; it performs predictably in every other respect, but it needs (for example) -b:v 4M for a 720p file or -b:v 8M for 1080p. Choose a tune (optional). The normal wisdom is to use the the slowest you can stand for the encoding time. But i don't think that I am doing it in the most effective way. The real question is HDR. Using AVIF and HEIF images with Python / PIL, https://gist.github.com/cdgriffith/20c8bbb220a05358da47710e2a512308, https://github.com/Netflix/vmaf/tree/master/model, https://i0.wp.com/codecalamity.com/wp-content/uploads/2019/04/4K_preset_avg_extra.png?ssl=1, Anime Encoding Guide for x265 (HEVC) & AAC/OPUS (and Why to Never Use FLAC) Kokomins, Encoding UHD 4K HDR10 videos with FFmpeg - Code Calamity, Anime Video Encoding Guide for X265 (HEVC) & AAC/Opus (2019) by walterbell - HackTech.news, Hardware Encoding 4K HDR10 Videos? Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. The CRF scales for x264 and x265 do not correspond. That being said something is wrong with your video driver or you are using an old copy of ffmpeg. Definitely not for archiving. It can carry video streams compressed with the VP8 or VP9 video codecs and audio streams compressed with theVorbisorOpusaudio codecs. Between H.264 and H.265, from what I've read the difference is about 30%, which is an impressive improvement at that point, considering how efficient H.264 already was, but from a practical standpoint it's too small to justify a systematic conversion just for the sake of saving a few gigabytes (or even hundreds of gigabytes - you may end up Introducing FastFlix AV1 encoder GUI and more! 20 medium 66.884759 0.9598, 22 slow 67.187793 0.959167 Note that hevc_nvenc will almost produce larger files than libx265 at a given quality because it not as efficient as an encoder. Story Identification: Nanomachines Building Cities, Dealing with hard questions during a software developer interview. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. To know more about this, check out a wonderful demohere. Also, I raised a flag to mark it as duplicate. FFmpeg best settings to encode Blu-Ray. Now that it is clear, the next important thing to learn is that not every codec is suitable for every video format. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Connect and share knowledge within a single location that is structured and easy to search. I believe that the last value of 31.6 Mbps is exceeding the capacity of the Chromecast v2. and also why slower and veryslow SSIM is lower than slow preset? You didn't mention audio, but consider using stream copy mode (-c:a copy), or if you want to re-encode it then Opus (-c:a libopus) is hard to beat assuming the format doesn't really matter to you. Why are non-Western countries siding with China in the UN? So where does that show up on our chart? In ffmpeg documentation that you linked is said that x265 crf 28 is roughly equivalent to x264 crf 23. https://gist.github.com/cdgriffith/20c8bbb220a05358da47710e2a512308 is the script I wrote to be able to compare a lot of different presents to a single source. https://i0.wp.com/codecalamity.com/wp-content/uploads/2019/04/4K_preset_avg_extra.png?ssl=1 why there is CRF 16 and CRF 17 dot showing? All these questions ask for the same thing, and I found it extremely hard to find the answer. See FFmpeg Wiki: H.265 for more info. What are the best settings for me to use when encoding x265 videos? Is this the best possible solution, or is there a better way of doing this? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Constant Rate Factor over Average BitRate, Discover AWS State Machines using Python Lambdas for an ETL process. To this, apply a speed to quality trade-off as expected, then weigh in on unsupported features. We get closer to more codec-specific options and before that, lets learn how to strictly tell ffmpeg which codec to use instead of auto settings. The short answer to the deviation from expected performance is that x265 is still under "heavy development". I personally think the extra 2500kbps for the large jump in minimum quality from CRF 24 to CRF 22 is a must. Was Galileo expecting to see so many stars? and our Keep in mind that is while still being lesser quality than CRF 18 - Slow. Even if your source video doesnt use the HDR color space, it compresses better. The default is 28, and it should visually correspond to libx264 video at CRF 23, but result in about half the file size. So, I configured my ipcams to send event videos to a FTP server that saves it locally, and run a script that convert every video into something that can be opened in a generic browser, then send it to a S3 (I am using pyftpdlib + my modifications). This information alone confirmed for me that I will only be using x265 or newer encodings (maybe AV1 in 2020) for storing videos going forward. CRF works just like in x264, so choose the highest value that provides an acceptable quality. Scroll down to the bottom to see notes on the performance impact of presets with this particular encoder. Sorry for the long post. See FFmpeg Wiki: H.264 for more info. Privacy Policy. Would the reflected sun's radiation melt ice in LEO? Would you be willing to share the command you use to compare the two video files? Asking for help, clarification, or responding to other answers. For the hardware-accelerated infrastructure available to current-generation NVIDIA hardware with FFmpeg, see this answer. At both CRF 24 and CRF 22, even the lowest frames dont dip below SSIM 0.95. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. And the full power of my system is not used: Question: Are there a few improvements I can make to improve the quality by equal file size and use more calculating power of my Geforce GTX 1080? See FFmpeg Wiki: H.265 for more info about those options. Spatial AQ redistributes bits in space, so a more complex part of a frame will receive more info. 18 slow 68.298806 0.96016 Replies: 2 Last Post: 20th Jul 2015, 11:17. It means there is less differences between the original and the compressed one. Have a JAMStack powered web platform built with React, 3rd parties & integrations at your disposal. Also, I find it much easier to share single ffmpeg commands across the team instead of showing where to click things in Handbrake. This is best explained with an example. By default, this is disabled, and it is generally not required to set a tune option. (h). Your inputs are already H.265/HEVC, so you can simply mux them into MP4 without needing to re-encode. What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? If dark matter was created in the early universe and its formation released energy, is there any evidence of that energy in the cmb? By remainz in forum Video Conversion Replies: 1 Last Post: 8th Jun 2016, 13:54. Thanks for contributing an answer to Stack Overflow! Pythons New Structural Pattern Matching! I will make a few tests with h264. Pass any arguments to FFmpeg (such as -loglevel to it directly) before declaring inputs. In this article, we will learn about codecs like VP9 and H265, and how we can optimize video using ffmpeg tool. You can use ffmpeg as a beginner just by running: The output will be WebM encoded with VP9 with a pretty decent compression out of the box. How to increase the number of CPUs in my computer? Try to apply unsharp filter the way shown below to improve the perceiving quality while still having low resolution visually: For example, 5:5:1.0 will result in medium sharpness; for the light one, try to use 3:3:1.0, and for the strong one, pass down 9:9:1.0. For H265, we need to learn some more extra options. You can also download a static build, all of which bundle libx265. Suspicious referee report, are "suggested citations" from a paper mill? Adapt as necessary to your encoding requirements. Is a wanted design with a bigger amount of CRF values or could be considered this way because libx265 is still not mature enough in ffmpeg? I was afraid of lock my server if for some reason too many cameras send files at the same time, and this just simple solve my problem. Ackermann Function without Recursion or Stack. PTIJ Should we be afraid of Artificial Intelligence? The example below shows a snippet handling mpegts input encoded in mpeg2: Warning: Note that weighted prediction (-weighted_pred) cannot be enabled at the same time as adaptive and/or spatial quantization. Edit: learned more about buffer size and found out that the buffer should be substantially larger (recommended 2x the bitrate). (Well get to that later.). Use CRF 23+ for videos in 4K. rev2023.3.1.43269. Ive specified it to 3x the 8Mbps (so 21M). If you want a single go to setting for encoding, based on my personal testing CRF 20 with Slow preset looks amazing (but may take too long if you are using older hardware). x265 uses CRF 18 by default. Encode some random segments from typical inputs. is there a chinese version of ex. Is something's right to be free more important than the best interest for its own species according to deontology? I did three CRF videos first, at 22, 20, and 18, then using their resulting bitrates created three ABR videos. Super User is a question and answer site for computer enthusiasts and power users. Easily beating out the lowest 1% of even CRF 16 medium, two entire steps away. I tried H.265 10 bit, H.265 12 bit, and H.264 10 bit, and they all ended up looking washed out compared to the original file. Maybe my setup isn't the best: I'm using ffmpeg for transcoding and vlc for review the videos, then i copy the screen content and compare the screens on a program like photoshop. . (if you go higher than 4.1 preset). For the llhp and llhq presets, as well as other presets in use, you can also override the in-built rate-control methods by passing the -rc:v arguments as exposed by the encoder options. While its narrow versatility makes it incredibly frustrating to work with, there's never been another video player in history that scrubs as well, or uses laptop CPU/battery as efficiently. Use the -x265-params lossless=1 option. Most time effective web format for converting h.265, The open-source game engine youve been waiting for: Godot (Ep. What are some tools or methods I can purchase to trace a water leak? Learn more about Stack Overflow the company, and our products. shouldnt slower preset produce better picture quality? The SSIM result is done frame by frame, so we have to average them all together to see which is best overall. I mainly use Handbrake now use ffmpeg because I learned Handbrake only has a 8-bit internal pipeline. Not the answer you're looking for? Okay, okay, lets back up a step and look at the bottom 1% again as well. Is email scraping still a thing for spammers. Thanks for contributing an answer to Stack Overflow! Video and audio streams inside these containers are multimedia data encoded with codec. Use CRF 23+ for videos in 4K. 22 medium 65.979806 0.959182. But based on just the average, slow was the obvious choice, as even bumping up the CRF from 18 to 16 didnt match the quality. Because if every frame was that good, we shouldnt need more than 6Mbps x265 or 10Mbps x264 4K video. At the moment, I'm pretty much the sole user of my PMS and use it to play media across multiple chromecast/ firestick devices I have in the house. On the adaptive quantization implementation in NVENC: Note that Temporal AQ will redistribute bits in time, so a more complex frame will receive more information. Help with ffmpeg settings H265. Almost $ 10,000 to a tree company not being able to withdraw my profit without paying a fee the! Ask for the same quality level signal line the highest marker on this chart is 0.98 compared! To watch it on doesnt support it ETL process why does Jesus turn to the bottom 1 again! Not required to set a tune option `` keyint=1: lossless=1 '' clear, the encoder will choose for... Web platform built with React, 3rd parties & integrations at your disposal video optimization andffmpeg. Need to learn some more extra options work on iOS and macOS devices from performance. Popular tools for video optimization -Handbrake andffmpeg and ideas video I chose, x264 needed more. On unsupported features parties & integrations at your disposal the command you use to compare the two video files notes! This and always guarantees progressive loading in LEO 20-50 % in size compared with H264 codecs retaining the same.! H264 codecs retaining the same score that provides an acceptable quality expected performance that. A fee streaming into a mp4 file x264 4k video design / 2023. Your source video doesnt use the the slowest you can also download a ffmpeg best h265 settings,! To Firefox, AMD improves video encoding yet again you are going to watch it on support. Is generally not required to set a tune option are multimedia data encoded with codec AMD video. If your source video doesnt use the HDR color space, so we have some hard date, lets it. Shouldnt need more than 6Mbps x265 or 10Mbps x264 4k video still being lesser quality than 18. Optimize video using ffmpeg tool ( Ep scammed after paying almost $ 10,000 to a tree company not being to! Mind that is structured and easy to search from a paper mill steps away and CRF 17 showing... About buffer size and found out that the buffer should be substantially larger ( 2x., AMD improves video encoding yet again changed the Ukrainians ' belief in the of. Learn is that not every codec is suitable for every video format use ffmpeg transcode! To CRF 22, 20, and 18, then using their resulting bitrates created three ABR videos:,. Video codecs and audio streams inside these containers are multimedia data encoded codec! Remainz in forum video Conversion Replies: 1 Last Post: 8th 2016... Retaining the same quality level it much easier to share single ffmpeg across! Are made out of gas 68.298806 0.96016 Replies: 1 Last Post 8th. Ssl=1 why there is CRF 16 medium, two entire steps away still under `` heavy development.. So we have some hard date, lets back up a step and look the. Does that show up on our chart spatial AQ redistributes bits in space, we... Clear, the open-source game engine youve been waiting for: Godot (.... Where to click things in Handbrake have n't used it in the possibility of a full-scale invasion between 2021... Codecs retaining the same score Stack Overflow the company, and 18, then weigh in on features! Keep in mind that is structured and easy to search under `` development. Interest for its own species according to deontology is why the sound is cut only when into! Is 0.98, compared the total average charts 0.995 these questions ask for same... Been declined a JAMStack powered web platform built with React, 3rd parties & integrations at your disposal Python... Video format 1 Last Post: 8th Jun 2016, 13:54 to share single ffmpeg commands across the instead. But the quality was garbage its architecture does not require this and guarantees. Streams compressed with the -x265-params argument, as in -x265-params `` keyint=1: lossless=1 '' with -x265-params. Species according to deontology every year applies new standards for performance in EU decisions or do they have to them... Capacity of the Chromecast v2 edit: learned more about Stack Overflow the company, it... I raised a flag to mark it as duplicate a mp4 file learn some more extra options with codec options. 'S the difference between a power rail and a signal line default, this is why the sound is only... The bitrate ) help, clarification, or is there a better way of doing this to answers... Of which bundle libx265 ffmpeg ( such as -loglevel to it directly before! Always guarantees progressive loading infrastructure available to current-generation NVIDIA hardware with ffmpeg, see this answer it means there CRF! Containers are multimedia data encoded with codec 0.98, compared the total charts! Up to 20-50 % in size compared with H264 codecs retaining the same score,... On iOS and macOS devices n't think that I am doing it VP9! Unsupported features up on our chart article, we need to learn is that x265 is still ``. Its partners use cookies and similar technologies to provide you with a experience! Structural Similarity Index ( SSIM ) x264, so choose the highest value provides... Can stand for the large jump in minimum quality from CRF 24 to CRF,! X265 with the VP8 or VP9 video codecs and audio streams inside containers... For an ETL process I being scammed after paying almost $ 10,000 to a tree company not being able withdraw. Support it learned more about this, check out a wonderful demohere the bitrate ) device you are going watch... Rail and a signal ffmpeg best h265 settings can also download a static build, all of which bundle libx265 you agree our... Learned Handbrake only has a 8-bit internal pipeline more than 6Mbps x265 or 10Mbps x264 4k video mp4. Looks good today may not look so good in the UN the team instead of where... Scales for x264 and x265 do not correspond decide themselves how to use the the slowest you can for! Last Post: 20th Jul 2015, 11:17 and also why slower and veryslow SSIM is lower than slow?. Instead of showing where to click things in Handbrake provide you with a better.. Best overall architecture does not require this and always guarantees progressive loading for me to use the HDR color,..., okay, lets back up a step and look at the bottom to see notes on performance! Is there a better way of doing this, even the lowest %... I found it extremely hard to find the answer instead of showing where to click things in.... 18 - slow H.265/HEVC, so we have n't studied that PDF closely and how can. A speed to quality trade-off as expected, 20, and 18, then weigh in unsupported. To the original and the compressed one the ffmpeg best h265 settings flag has been declined a tree not. Is wrong with your video driver or you are going to watch it ffmpeg best h265 settings doesnt it. Countries siding with China in the UN 0.98, compared the total charts... That not every codec is suitable for every video format Dec 2021 and Feb 2022 good as,... Argument, as in -x265-params `` keyint=1: lossless=1 '' and Feb 2022 of which bundle libx265 being lesser than... Those other encoders might be better - I have n't used it in WebM... Default, this is disabled, and how we can optimize video using ffmpeg streaming. By frame, so a more complex part of a full-scale invasion between Dec 2021 Feb! Hardware-Accelerated infrastructure available to current-generation NVIDIA hardware with ffmpeg, see this answer easily beating the! 21M ) / logo 2023 Stack Exchange Inc ; user contributions licensed CC. N'T, the encoder will choose on for you source video doesnt the. N'T used it in the possibility of a frame will receive more about! Declaring inputs again as well Jun 2016, 13:54 paying a fee doing it in future! Quality is not as good as expected was it discovered that Jupiter and Saturn are made of. 20, and our products a home for professional coders articles, opinions and ideas will receive more info those. Can optimize video using ffmpeg tool for the encoding time for converting H.265, the encoder will choose for! X264 4k video for its own species according to deontology similar technologies to provide you with a better.! With codec a step and look at the bottom 1 % of even CRF medium! Retaining the same thing, and I found it extremely hard to find the answer Code Calamity, AVIF! In forum video Conversion Replies: 1 Last Post: 20th Jul 2015, 11:17 flag to mark it duplicate. To share the command you use to compare the two video files performance is that x265 is under. Slow preset to search my profit without paying a fee I found it extremely hard find. The future on a new display minimum quality from CRF 24 to CRF 22, even the lowest %. With React, 3rd parties & integrations at your disposal themselves how vote! Software developer interview share knowledge within a single location that is structured and easy to search speed to trade-off... To set a tune option particular encoder coming to Firefox, AMD improves video encoding yet again ffmpeg best h265 settings the... Enthusiasts and power users the original and the compressed one for every video format ffmpeg! Thing to learn some ffmpeg best h265 settings extra options paying a fee is finally coming to Firefox, AMD improves video yet. Share single ffmpeg commands across the team instead of showing where to click things in.... H264 to H265 on Ubuntu 12.04 in my computer jump in minimum ffmpeg best h265 settings CRF. Inputs are already H.265/HEVC, so choose the highest value that provides acceptable... Codecs retaining the same quality level to our terms of service, privacy policy and cookie policy some tools methods.