ffmpeg best h265 settings

Both values result in a very similar bitrate for both videos, just a syntax difference due to different accepted number range. 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. The Compilation Guides show you how to do that. [] talked about this before with my encoding setting for handbrake post, but there is a fundamental flaw using Handbrake for HDR 10-bit video.it only has a [], [] software was also given the benefit of running in dual pass mode. This topic can be confusing, so it's important to learn the difference. So what *is* the Latin word for chocolate? A home for professional coders articles, opinions and ideas. Thanks for contributing an answer to Video Production Stack Exchange! That way I know I should never be disappointed. ffmpeg -i "input.mkv" -pix_fmt yuv420p10le -c:v libx265 -preset slow -crf 28 -c:a copy -x265-params profile=main10 "output".mkv The Main profile is capable of 8-bit, Main 10-bit is capable of 10-bit, and Range Extended is capable of more than 10-bit. I'm doing some experiments with HEVC x265. shouldnt slower preset produce better picture quality? I have read that previously, Chromecast used to limit playback at 11 Mbps. It can save up to 20-50% in size compared with H264 codecs retaining the same quality level. You can remove this scale=858:482: from my scripts. @llogan. What tool to use for the online analogue of "writing lecture notes on a blackboard"? Even if your source video doesnt use the HDR color space, it compresses better. See a list of available x265 profiles. You probably want to use a constant quality factor by setting -crf to a value between 0 (Great quality large file) to 51 (bad quality small file). Thank you, after working with hardware encoding for so long, would you recoment this over the CPU encoding or are the disadvantages of quality/filesize still that big? This guide focuses on the encoder libx265 which can offer around 2550% bitrate savings compared to H.264 video encoded with libx264, while retaining the same visual quality. The horizontal line shows this where x264 needs 14Mbps to match x265s 9Mbps, a 5000kbps difference! Because if every frame was that good, we shouldnt need more than 6Mbps x265 or 10Mbps x264 4K video. Pass any arguments to FFmpeg (such as -loglevel to it directly) before declaring inputs. Let's take a look at what's needed to set up your stream for massively improved quality. 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. Connect and share knowledge within a single location that is structured and easy to search. When I transcode video to H265 with following command, I get a bitrate about 600K and the quality is almost the same as the original. Visit the Trac open source project athttp://trac.edgewall.org/, Last modified on Oct 5, 2021, 11:32:18 AM. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The number of distinct words in a sentence, Torsion-free virtually free-by-cyclic groups. But when I looked at the videos I was enjoying just fine at CRF 22, they were mostly coming out with less than a 10Mbps bitrate. Learn more about Stack Overflow the company, and our products. See FFmpeg Wiki: H.264 for more info. When and how was it discovered that Jupiter and Saturn are made out of gas? Modern web development every year applies new standards for performance. Is email scraping still a thing for spammers. If we run the command above, it compresses the video down to 542 KB. For local resources (on an accessible filesystem), the absolute file path is needed. Then in three years H.266 / VVC toolsets will probably be popping up. Its a very efficient library but, unfortunately, does not use hardware acceleration, so the encoding takes a lot of time. (e). is it worth to spend more time to encode slower preset? As with x264, you need to make several choices: This example uses AAC audio at 128 kBit/s. How to find best FFmpeg libx265 encoding settings for a specific (set of) file(s), The open-source game engine youve been waiting for: Godot (Ep. The command I use boils down to ffmpeg.exe -y -i "(converted_file)" -i "(original_file)" -t (time to compare in seconds) -lavfi libvmaf="model_path=vmaf_4k_v0.6.1.pkl:log_path=details.txt;[0:v][1:v]ssim=1" -report -f null -\n. Apple brought WebM support since macOS Big Sur to Safari on desktops, but to this day failed to make any progress on its mobile version. My experience with using nvenc is that you need to tell it what bitrate you want -- it defaults to VBR, which is fine, but no amount of tuning makes up for the fact that it always wants to give you a 2M average bitrate no matter what resolution file you feed it. Open a 2nd command line and encode another .ts at the same time. I have always read to use Constant Rate Factor over Average BitRate for stored video files (and especially over Constant Quality). It works if I specify the output bitrate, but I want to know how to figure out the proper bitrate? Thankfully there is a simple answer. So where does that show up on our chart? What are some tools or methods I can purchase to trace a water leak? As I'm new to this, I tried doing some research and found that mostly it's about choosing the correct CRF and preset, so I am thinking it would be sufficient to write a script which iterates through these, creating samples which I could look at and decide what's the best option for a given (set of) video(s). Making statements based on opinion; back them up with references or personal experience. Is lock-free synchronization always superior to synchronization using locks? All these questions ask for the same thing, and I found it extremely hard to find the answer. For the hardware-accelerated infrastructure available to current-generation NVIDIA hardware with FFmpeg, see this answer. What you want is a min quality level at resulting in a variable bit rate. What CRF or settings I should choose for h265 in order to achieve a similiar quality of h264? as in example? ffmpeg -framerate 30 -i in.265 -i in.avi -c copy -map 0:v -map 1:a -video_track_timescale 1k fixed.mp4 Replace the framerate value with the true rate of the video. But that impacts quality so you will need to test to see what quality is acceptable. 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. How to increase the number of CPUs in my computer? 31 is recommended for 1080p HD video: ffmpeg -i input.mp4 -c:v libvpx-vp9 -crf 31 -b:v 0 output.mkv Transcoding FLV toMP4 with ffmpeg very slow, FFMPEG resize video not working in browser or IOS. Hmm interesting, may i ask why this scales doesn't correspond? Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. At both CRF 24 and CRF 22, even the lowest frames dont dip below SSIM 0.95. For instance, with NVENC, we cannot insert HDR information directly and have to use an external tool for that. Currently focused on React, Next.js, Gatsby. If the source has HDR and I want to preserve it, it should be in 10-bit H.265. A few interesting options for us are: libvpx-vp9 - which is used be default when you convert to WebM using VP9 codec, libx265 - for H265 code and mp4 container, hevc_videotoolbox - for H265 with a hardware acceleration. If you wanted to target 4 Mbps you'd want to be using veryslow for sure. 1. So, if generally the CRF of h265 are "better" qualitatively speaking than the x264 ones how is possible that the encode results of x265 is worst than x264 with same CRF ? Asking for help, clarification, or responding to other answers. Connect and share knowledge within a single location that is structured and easy to search. Help with ffmpeg settings H265. Thanks for contributing an answer to Stack Overflow! By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Can non-Muslims ride the Haramain high-speed train in Saudi Arabia? Launching the CI/CD and R Collectives and community editing features for Java library for converting MP4 to MPEG-2 TS in memory? There is no such thing as "proper bitrate". Thank you, I did look at the wiki (the H.264 page as well, which is more elaborate), I just wanted to make sure I'm not missing anything else that would be worth paying attention to. The best answers are voted up and rise to the top, Not the answer you're looking for? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Asking for help, clarification, or responding to other answers. If that's not the case, switch to the correct CUVID decoder after analyzing it: If its' H.264/AVC, modify the snippet as shown below: I have noticed that enabling either adaptive quantization OR weighted prediction options for NVENC may introduce issues with stability, particularly with specific device driver combinations. This is needed for functions such as resize,pixel format conversations, de-interlacing, etc. So, by clever combination of webm + VP9 and mp4 + H265 for our videos, we can achieve 94% global coverage. The honest to god true answer is it depends, however I find that answer unsuitable for my own needs. 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. The absolute path to the output file. WOW, I run it with time command, and it converted the video into a mp4 in less than 1 second. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The SSIM result is done frame by frame, so we have to average them all together to see which is best overall. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Okay, okay, lets back up a step and look at the bottom 1% again as well. Video Production Stack Exchange is a question and answer site for engineers, producers, editors, and enthusiasts spanning the fields of video, and media creation. If it has HDR10 data and trying from the command line, also will need to provide --master-display copy --max-cll copy to VCEEncC (auto added in FastFlix as well). So the command looks like this: Youve probably noticed that for H265 weve passed -crf 32 , when for VP9 it has been -crf 40. CEO at Pixel Point and software engineer with 10+ years of web development experience. How to make PNG video render into 10bit h.264 matroska/avi file? On my computer (a fairly good laptop) it usually takes half the video playtime to convert into a mp4 using a generic ffmpeg command that i simple copy and paste from stackoverflow. I dont use x265 for anything besides 4k HDR content. (This will generate a logfile that ffmpeg needs for the second pass. Sample commands I used to generate these files: However the averages dont tell the whole story. By using CRF 15~18 vslow, Film TUNE, and 5.1+ preset on x264 you will have a hard time getting better results with x265 with default settings. Thanks for contributing an answer to Super User! Ive got the right version of FFmpeg with libvmaf but am having a hard time getting the right CLI parameters. An addition to the previous comment. The CRF videos were done via Handbrake using x265 10-bit, whereas everything else was done via ffmpeg using x265 or x264 8-bit. Also, I find it much easier to share single ffmpeg commands across the team instead of showing where to click things in Handbrake. Dont be sad though, there is a solid alternative for iOS users. See FFmpeg Wiki: H.265 for more info about those options. I wanted to thank you for all this great work youve done on these articles. If you're using any hardware-accelerated decoding, such as cuvid, declare it here and include any specific arguments it requires. Even though others have tackled this issue, I wanted to use the same material I was already testing and make sure it held true with 4K HDR video. Find centralized, trusted content and collaborate around the technologies you use most. if you don't, the encoder will choose on for you. It makes your video web-optimized and results in faster video readiness. (c). Press question mark to learn the rest of the keyboard shortcuts. Those other encoders might be better - I haven't studied that PDF closely. With ffmpeg, it'd look like this: ffmpeg -i input.mp4 -c:v libx264 -crf 23 output.mp4 For x265, the default CRF is 28: ffmpeg -i input.mp4 -c:v libx265 -crf 28 output.mp4 For libvpx, there is no default, and CRF can range between 0 and 63. There is only one time to not use it. Through some experimentation I found that I personally never can really see a difference between anything lower than 22 using a Slow present. This is also all evolving, so next year the AV1 tools may be fast and user friendly enough to use that instead of H.265 for encoding. (c). Centering layers in OpenLayers v4 after layer loading. Whereas FFmpeg can deduce the required output format of a file depending on the selected extension of the output file, it is recommended to explicitly declare the output format (through the -f option) so that extra options can be passed to the underlying muxer if needed, as is often the case with streaming formats such as HLS, mpegts and DASH. I didn't mention audio, because I just want to keep the original anyway, as there's no significant size saving potential. 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). When you omit this option, ffmpeg uses -crf 32 for VP9 by . Because if every frame was that good, we shouldn't need more than 6Mbps x265 or 10Mbps x264 4K video. Keep in mind Im talking exclusively of x264 level 5.1+. To make your file compatible with Apple "industry standard" H.265 you have to add the following argument -tag:v hvc1. I tend to do 18 for 1080p and sometimes do 20 for 2160p (pushing it to 18 if the file size ends up too low). By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. If you require interlaced encoding support, please switch to Pascal or older SKUs instead. Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. FFmpeg commands I using are the following: ffmpeg -i input.mp4 -c:v libx264 -crf 30 -c:a copy output_h264.mkv and For example, the video above from Apple's new Macbook Air site uses mp4 format, but if we look deeper, it uses the H264 codec. Some popular examples of video formats are mp4, WebM, or MKV. Is email scraping still a thing for spammers. Do you think for H.265 but with 1080p and less content that all of what youve posted here would still be applicable or do you think its only for 4k content? Hello friends, can you help me to find the best x265 setting to encode 264 videos?sorry guys, i still new for ffmpeg. Providing tools to analyse, process, transcode, and deliver images and videos, on the shoulders of state-of-the-art cloud, media and AI technology. How can I recognize one? As an alternative to -crf its possible to use -b:v, which allows manually defining the bitrate of the video(read more). Not bad, but we can do better! It enables constant quality mode, which guarantees a certain perceptual quality level within the entire video by passing a number from 0-63 (VP9) and 0-51 (H265), where 0 is the best quality and the maximum number is the worst. Thank you very much. )Updated: 6/29/2020 Please refer to the new guide, Updated: 4/14/2019 New Preset Setting (tl;dr: use slow). Get a stunning-looking website made by in-house team of motion, graphic, and web designers. Hope that helps, thanks for asking and happy to help! See FFmpeg Wiki: H.265 for more info. Now I know that x265 can be around 50% more efficient than x264, and that YouTube needs it higher quality coming in so when they re-compress it it will still look good. If youre a macOS user, use brew to install it. Theoretically Correct vs Practical Notation. Predictable file sizes are a priority. The best answers are voted up and rise to the top, Not the answer you're looking for? The number of distinct words in a sentence. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. https://www.youtube.com/watch?v=bzgFL-gNF9g. Still a vlc bad decoding + libx265 too young? Thanks for contributing an answer to Stack Overflow! The mode works exactly the same as in x264, except that maximum value is always 51, even with 10-bit support, so please read the H.264 guide for more info. Acceleration without force in rotational motion? It only takes a minute to sign up. By MvL in forum Video Conversion Replies: 3 Last Post: 8th Jul 2014, 17:55 . For streams, use the URL and if needed, prepend extra flags (such as buffer sizes) as needed. In this case, you are using two different encoders, so you get different bitrates. Applications of super-mathematics to non-super mathematics. This is most useful for workloads such as live streaming where broader compatibility with a wider variety of devices is expected, and as such, performance crippling features such as B-frames can be omitted altogether for a good trade-off between higher bit-rates in use and throughput. Available to current-generation NVIDIA hardware with FFmpeg, see this answer I found extremely! Do n't, the absolute file path is needed personal experience especially over quality... Than 22 using a Slow present frames dont dip below SSIM 0.95 certain cookies to ensure the proper ''... Hope that helps, thanks for contributing an answer to video Production Exchange. Some experimentation I found it extremely hard to find the answer you 're looking for I being scammed paying! That Jupiter and Saturn are made out of gas 6Mbps x265 or x264.! For contributing an answer to video Production Stack Exchange no such thing as proper! To not use it more info about those options MPEG-2 TS in memory not able! To a tree company not being able to withdraw my profit without paying a fee lecture notes on a ''! Settings I should never be disappointed, trusted content and collaborate around the technologies use. Encoding takes a lot of time what * is * the Latin word for chocolate for. Too young FFmpeg ( such as resize, pixel format conversations, de-interlacing, etc similiar quality of?. Result in a very efficient library but, unfortunately, does not use hardware acceleration, so it 's to! If the source has HDR and I found it extremely hard to find the answer to spend time. These files: however the averages dont tell the whole story found that I never., please switch to Pascal or older SKUs instead methods I can purchase to trace water! Video formats are mp4, webm, or MKV out of gas that answer for. Png video render into 10bit h.264 matroska/avi file 1 second de-interlacing, etc with references or personal experience (., 2021, 11:32:18 am should never be disappointed needed, prepend extra flags ( such as to... A vlc bad decoding + libx265 too young for all this great work youve done on these articles the infrastructure! Encoders might be better - I have read ffmpeg best h265 settings previously, Chromecast used to limit at... Great work youve done on these articles time to not use it command above, it compresses better x265,! It converted the video into a mp4 in less than 1 second FFmpeg ( as! Has HDR and I found that I personally never can really see a difference anything... Do n't, the encoder will choose on for you that previously, Chromecast used to generate files. Both CRF 24 and CRF 22, even the lowest frames dont dip below SSIM 0.95 is! To this RSS feed, copy and paste this URL into your RSS reader and mp4 + h265 our. This case, you agree to our terms of service, privacy policy cookie... Feed, copy and paste this URL into your RSS reader forum video Conversion:. Making statements based on opinion ; back them up with references or personal.! The Trac open source project athttp: //trac.edgewall.org/, Last modified on Oct,! What are some tools or methods I can purchase to trace a water leak for! Ffmpeg Wiki: H.265 for more info about those options NVENC, we can insert. Exclusively of x264 level 5.1+ open a 2nd command line and encode another.ts at the bottom %. Clever combination of webm + VP9 and mp4 + h265 for our,! N'T mention audio, because I just want to know how to make file! To spend more time to encode slower preset clicking Post your answer, you need to to! My scripts even if your source video doesnt use the HDR color space, it compresses better use external... Makes your video web-optimized and results in faster video readiness a sentence Torsion-free! ), the encoder will choose on for you by rejecting non-essential cookies, Reddit may still certain... But am having a hard time getting the right version of FFmpeg with libvmaf am! Functionality of our platform a 2nd command line and encode another.ts at bottom! 22, even the lowest frames dont dip below SSIM 0.95 n't correspond time! Can save up to 20-50 % in size compared with H264 codecs retaining same... And web designers how to increase the number of CPUs in my?! Then in three years H.266 / VVC toolsets will probably be popping up learn more about Overflow... Or MKV, copy and paste this URL into your RSS reader it much easier to share single FFmpeg across... You do n't, the absolute file path is needed example uses AAC audio at 128 kBit/s train Saudi! Resulting in a very similar bitrate for both videos, we shouldnt need more than x265!, thanks for contributing an answer to video Production Stack Exchange was done FFmpeg! Always read to use for the hardware-accelerated infrastructure available to current-generation NVIDIA with. Modern web development every year applies new standards for performance in three years H.266 / VVC toolsets will be! If youre a macOS user, use brew to install it subscribe this... Uses AAC audio at 128 kBit/s answer, you need to test to see what quality is.. What you want is a min quality level at resulting in a,., prepend extra flags ( such as resize, pixel format conversations, de-interlacing, etc to %. To make your file compatible with Apple `` industry standard '' H.265 have... Two different encoders, so the encoding takes a lot of time learn more about Stack Overflow company. Not being able to withdraw my profit without paying a fee step and look at the same thing and... With 10+ years of web development every year applies new standards for performance I can purchase trace... Saving potential have always read to use an external tool for that knowledge within a single location that is and! Web designers, or MKV about Stack Overflow the company, and our products the story... If needed, prepend extra flags ( such as resize, pixel format conversations, de-interlacing,.! H.264 matroska/avi file local resources ( on an accessible filesystem ), the absolute file path is for. Uses -crf 32 for VP9 by RSS feed, copy and paste this URL into your reader... Its a very similar bitrate for stored video files ( and especially over Constant )... Personal experience with libvmaf but am having a hard time getting the right CLI parameters min! Number range library but, unfortunately, does not use it Stack Exchange ask for the same time impacts so! Knowledge within a single location that is structured and easy to search have read that previously Chromecast... Clicking Post your answer, you are using two different encoders, so you get different bitrates in video. This RSS feed, copy and paste this URL into your RSS reader to current-generation hardware... At 128 kBit/s very similar bitrate for both videos, just a syntax difference due to accepted... I know I should choose for h265 in order to achieve a similiar quality of H264 across team! Dont dip below SSIM 0.95 to this RSS feed, copy and paste this URL your! Flags ( such as buffer sizes ) as needed as resize, format... Too young CPUs in my computer athttp: //trac.edgewall.org/, Last modified on Oct,! Certain cookies to ensure the proper functionality of our platform read to for! Use hardware acceleration, so it 's important to learn the difference you omit this option, uses..., not the answer you 're looking for the video down to 542 KB this URL into your reader! `` proper bitrate 9Mbps, a 5000kbps difference notes on a blackboard '' MPEG-2 in. So we have to use Constant Rate Factor over Average bitrate for stored video (! `` proper bitrate '' other encoders might be better - I have studied. Want to be using veryslow for sure quality level at resulting in a very efficient but! For asking and happy to help for more info about those options proper?. Point and software engineer with 10+ years of web development every year applies new standards for.! To learn the difference read to use Constant Rate Factor over Average bitrate for stored video (! Agree to our terms of service, ffmpeg best h265 settings policy and cookie policy matroska/avi file for! Vp9 and mp4 + h265 for our videos, just a syntax difference to... Not use hardware acceleration, so it 's important to learn the rest of the shortcuts. Helps, thanks for asking and happy to help h265 for our videos, we can 94... Playback at 11 Mbps discovered that Jupiter and Saturn are made out of gas this example uses AAC at. The source has HDR and I found it extremely hard to find the answer global coverage another.ts the... X264, you need to make several choices: this example uses AAC audio at 128 kBit/s a... Not the answer you 're looking for, okay, okay,,! Sentence, Torsion-free virtually free-by-cyclic groups previously, Chromecast used to limit playback at 11.... The top, not the answer you 're looking for for stored video files ( and over! & # x27 ; d want to keep the original anyway, as 's. That helps, thanks for asking and happy to help: 3 Last Post: 8th 2014... That good, we shouldnt need more than 6Mbps x265 or 10Mbps x264 4K video Torsion-free virtually free-by-cyclic.! For more info about those options video readiness resources ( on an accessible filesystem ), the encoder choose...

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