as in example? Declare your inputs. Pretty new to this but I have one questions I cant seem to read up on, If I have a 10 bit 4k movie and I use the H265 AMD VCE video encoder, would I lose the 10 bit with the new conversion? Can non-Muslims ride the Haramain high-speed train in Saudi Arabia? Handbrake 1.2.2. See HWAccelIntro for information on supported hardware H.265/HEVC encoders. CRF works just like in x264, so choose the highest value that provides an acceptable quality. Consider your encoding workflow and adjust as necessary. https://www.youtube.com/watch?v=bzgFL-gNF9g. Aka a old movie with lots of film grain will need a lot higher bitrate than a modern action / adventure move, which will itself needs a lot higher than an animation. Really awesome! *** CRF 20-23 for most 1080p videos is enough. It's therefore wise to limit thread counts on encodes where latency matters, as the perceived encoder throughput increase offsets any advantages it may bring in the long term. Making statements based on opinion; back them up with references or personal experience. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. When it comes to bitrates, ensure that your desired values are set via the -b:v, -maxrate:v and -bufsize:v options. 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. Should have been already almost completed in all its parts! 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. ), In pass 1, you can leave audio out by specifying, P. Hanhart et al., Subjective quality evaluation of the upcoming HEVC video compression standard (. Famous codecs are H264, H265, and VP8/9. Still, we get a good idea of where these show up. There aren't some commercial products based on x265 nowadays? As I've previously mentioned, the original file resolution is 5000x2700, but we don't use it that big, and we can try to reduce it to the size that is relevant to the page. Not sure if theyre agnostic of resolution. FFmpeg: For NVENC, what is a concurrent surface? Super User is a question and answer site for computer enthusiasts and power users. I guess this solves my problem. Definitely not for archiving. The slow preset was used as it was determined to be an ideal choice in previous tests. You can verify lossless encoding by looking for x265 [info]: lossless compression ratio in the console output from your encoding command, or refer to the hash demuxer for verification. When you omit this option, ffmpeg uses -crf 32 for VP9 by . You canread thisdoc for more info on this. Video Production Stack Exchange is a question and answer site for engineers, producers, editors, and enthusiasts spanning the fields of video, and media creation. To learn more, see our tips on writing great answers. Well, the size was the same (7,7MB, instead of the 3,8MB using the ffmpeg -i without any other option), but it was fast. Why are non-Western countries siding with China in the UN? The bitrates are as expected, the higher quality it gets the more bitrate it will need. For WebM, it's VP8 and VP9, while in mp4 could be almost anything. All Rights Reserved. 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. shouldnt slower preset produce better picture quality? ffmpeg has more video optimization settings available, such as Constrained Quality, Two-passes, Constant bitrate, and Lossless. It only takes a minute to sign up. Use CRF 23+ for videos in 4K. Maybe something more visible at lower bitrates? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. ffmpeg -i "input.mkv" -pix_fmt yuv420p10le -c:v libx265 -preset slow -crf 28 -c:a copy -x265-params profile=main10 "output".mkv If so, what would the best solution? Server: MacBook Pro with 2.66GHz i7, 4GB DDR3Connection to router: 5GHz WiFiMonitored with Tautulli (PlexPy), Chromecast v2 --> Onkyo Receiver 7.1 setup --> 1080p Sony Projector, Chromecast v1 --> Yamaha Receiver 5.1 setup --> 1080p TV, Amazon Firestick --> Yamaha Receiver 5.1 setup --> 1080p TV, These are connected over 2.4 GHz, unfortunately, (I know, I'm running some seriously old components in heresome are a decade old. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? Great explanation. Press J to jump to the feed. (g). Jordan's line about intimate parties in The Great Gatsby? YouTubes suggest guidelines for bitrates. So what *is* the Latin word for chocolate? Even if your source video doesnt use the HDR color space, it compresses better. Profile ( -profile) The profile determines which features of the codec are available and enabled, while also affecting other restrictions. As always, start by specifying a preset. 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. *** ### Encode video as x265 HEVC 10bit. Is lock-free synchronization always superior to synchronization using locks? This is best explained with an example. In ffmpeg documentation that you linked is said that x265 crf 28 is roughly equivalent to x264 crf 23. Still a vlc bad decoding + libx265 too young? If you require interlaced encoding support, please switch to Pascal or older SKUs instead. Even if there is no sound in a file, there could be empty audio track information that will occupy some additional weight, so always use it for muted videos. For more information, please see our 1. 3 seconds at the start is nothing as long as the movie plays fine. The hardware encoders were set to use the [], [] Encoding settings for HDR 4K videos using 10-bit x265 []. 28 and 23 are the default CRF values of x265 and x264 respectively, hence the supposed equivalence. For some videos, you can try using the low resolution option, but on retina screens, it could lead to a blurry picture. Choose a tune (optional). Your video is 10 minutes (600 seconds) long and an output of 200 MiB is desired. Suspicious referee report, are "suggested citations" from a paper mill? Which is very similar to others results as well, so Im personally sticking too it. How can I use CRF encoding with nvenc in ffmpeg? Get a stunning-looking website made by in-house team of motion, graphic, and web designers. (b). )Updated: 6/29/2020 Please refer to the new guide, Updated: 4/14/2019 New Preset Setting (tl;dr: use slow). Over 8 Mbps for most 1080p content with x265 is plenty good so you definitely don't need to use the slowest encoding settings. Note that the preset selected has the greatest impact on throughput, followed by the preset options (such as the rate control method in use) that you can optionally override if desired. This topic can be confusing, so it's important to learn the difference. But that's probably not what you want. You can also download a static build, all of which bundle libx265. 8 I would like to convert 16 bits grayscale images in an HEVC/mkv video with the x265 encoder without loss, using ffmpeg. To learn more, see our tips on writing great answers. as in example? The best answers are voted up and rise to the top, Not the answer you're looking for? The one advantage of hevc_videotoolbox over libx265 is that it supports encoding videos in H265 with alpha channel. There are two most popular tools for video optimization -Handbrake andffmpeg. You're still doing high bitrate encoding. I mean there are many improvements that have been made in NVENC and NVENC HQ should be equal quality compared to default x264. 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. q 18 slow 68.298806 0.96016 You can change this by adding -b:v option to ffmpeg. I use the monochrome12 profile. Ive got the right version of FFmpeg with libvmaf but am having a hard time getting the right CLI parameters. rev2023.3.1.43269. Your inputs are already H.265/HEVC, so you can simply mux them into MP4 without needing to re-encode. 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. (As a heads up h.265 is the specification, and x265 is encoder for it. That said, you can try to establish your own calibration between the current versions of the encoding libraries in your ffmpeg by running the following command, which executes two popular video quality metrics: The final lines of the console output will contain: So, run the command once with the x264 output and once with x265 and compare with different x265 outputs, till you get similar measures. if you don't, the encoder will choose on for you. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The horizontal line shows this where x264 needs 14Mbps to match x265s 9Mbps, a 5000kbps difference! Thanks @szatmary. rev2023.3.1.43269. Use the -g 1 option for FFmpeg 4.3 and newer or if you're using a build from the git master branch. Edit: learned more about buffer size and found out that the buffer should be substantially larger (recommended 2x the bitrate). You will have to tweak A LOT of the extra complex settings of x265 encoder to even MATCH x264, let alone surpass it in size to perceivable quality, and by the time you do, you will see that x265 is just a order of magnitude slower than x264 to achieve marginally better results which is very problematic with 4k encodes. Because if every frame was that good, we shouldnt need more than 6Mbps x265 or 10Mbps x264 4K video. As with CRF, choose the slowest -preset you can tolerate, and optionally apply a -tune setting. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. I believe that the last value of 31.6 Mbps is exceeding the capacity of the Chromecast v2. Try running ffprobe on it ( ffprobe -i filename.ts -show_streams ) to see what the format and colorspace are, for HDR should be: pix_fmt=yuv420p10le color_space=bt2020nc color_transfer=smpte2084 color_primaries=bt2020, (Windows ffmpeg/ffprobe package https://ffmpeg.zeranoe.com/builds/, others https://ffmpeg.org/download.html), Found this incredibly helpful, as Ive recently begun ripping Blurays to x265 instead of x264, particularly when I got my new 12-core Ryzen 3900X. How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? See FFmpeg Wiki: H.265 for more info. Although I've been using Plex for years, my setup is far inferior to most of the people on this forum. But x265 is not yet as mature in its development as x264, so take that CRF equivalence with a pinch of salt. 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? 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. They claim that a 4K video coming into their site should optimally be 35~45Mbps when encoded with the older x264 codecs. Frameworks compete by optimizing network requests, images, and code to achieve a blazing-fast loading experience. Asking for help, clarification, or responding to other answers. H265, a.k.a HEVC (High-Efficiency Video Coding), is a codec supported by Apple and shows the same 20-50% better efficiency than its H264 older brother. Default psycho-acoustics tunings on x264 are much more mature and balanced for perceived quality than x265. If the same information really answers both questions, then one question (usually the newer one) should be closed as a duplicate of the other. Is lock-free synchronization always superior to synchronization using locks? This is why the duplicate flag has been declined. If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? The real question is HDR. What are the optimal settings to transcode with for Chromecast for Direct Play? Connect and share knowledge within a single location that is structured and easy to search. I'm doing some experiments with HEVC x265. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. If the source has HDR and I want to preserve it, it should be in 10-bit H.265. Therefore I played it safe, bump it down a notch and just encode all of my stuff with x265 10-bit at CRF of 20 on Slow preset. In fact, the MPV devs have mentioned this repeatedly, don't rely on hardware-accelerated decoding for mission-critical content delivery. rev2023.3.1.43269. This uses the native FFmpeg AAC encoder, but under AAC you will find info about more options. You can indicate this by, i can link the answer to the other question. from the chart SSIM difference is very low. What's the difference between a power rail and a signal line? Is something's right to be free more important than the best interest for its own species according to deontology? First thing I did was to chop out a minute segment and promptly remove the HDR. Modern video codecs can deliver excellent quality while preserving a very reasonable size. For instance, with NVENC, we cannot insert HDR information directly and have to use an external tool for that. ffmpeg -c:v libx265 -preset fast -crf 28 -tag:v hvc1 -c:a eac3 -b:a 224k -i <source> <target>. It is not a royalty-free codec - perhaps, that is why the adoption rate is much less than of WebM's. See FFmpeg Wiki: H.265 for more info. 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. Their overall average SSIM scores were near as identical. Now that it is clear, the next important thing to learn is that not every codec is suitable for every video format. If you wish to master the tool, you will have to learn how to use flags. In this data set, slow is the clear winner in multiple ways. 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). Constant Rate Factor over Average BitRate, Discover AWS State Machines using Python Lambdas for an ETL process. How to increase the number of CPUs in my computer? Use the -x265-params lossless=1 option. Using ffmpeg for streaming video composition from Python : why the sound is cut only when streaming into a mp4 file ? 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. Here we can see x264 has a much harder time at lower bitrates. Is this enough, or should I take some other things into consideration as well? I have a raw footage and the quality of details of h264 with same CRF setting looks better than h265. Cookie Notice 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. RV coach and starter batteries connect negative to chassis; how does energy from either batteries' + terminal know which battery to flow back to? The number of distinct words in a sentence, Torsion-free virtually free-by-cyclic groups. Those other encoders might be better - I haven't studied that PDF closely. Here is the order in which you have to pass arguments to FFmpeg: (b). Download the SSIM data as CSV. In this test, I encoded all videos with ffmpeg using the default presents. Just copy my settings and youre done!You can view the \"Step By Step\" instructions on The Webernets Website - https://www.thewebernets.com/2021/02/06/quick-easy-best-optimal-settings-for-handbrake-convert-dvd-video-to-h-265-hevc-mac-windows-linux/Lots of interesting information on the H.265 Codec here - https://x265.readthedocs.io/en/3.1/index.html How to increase the number of CPUs in my computer? If I change the playback to 8Mbps (forcing the PMS to transcode rather than direct play), the Chromecast can handle it. I've gone through this sub and tried to improve my transcodes, but I'm still not 100% there. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Then I ran multiple two pass ABR runs using ffmpeg for both x264 and x265 using the same target bitrate. Currently focused on React, Next.js, Gatsby. 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. 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. So, I'll link to the other answer that I posted. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. And since you're on Windows, you may want to remove the shell escapes \ above as I'm writing this from a Unix box testing the command above. 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. How did Dominion legally obtain text messages from Fox News hosts? Jordan's line about intimate parties in The Great Gatsby? Convert ffmpeg encoding from libx264 to h264_nvenc. The Compilation Guides show you how to do that. Please read the new article for saving HDR.I have historically been using the older x264 mp4s for my videos, as it just works on everything. The honest to god true answer is it depends, however I find that answer unsuitable for my own needs. I tried encoding some 4K HDR files using Handbrake and they look washed out. (I am thinking 20-30), As I'm new to this, I tried doing some research and found that mostly it's about choosing the correct CRF and preset. rev2023.3.1.43269. Choose the highest CRF value that provides an acceptable quality. What are the best settings for me to use when encoding x265 videos? In this case, you are using two different encoders, so you get different bitrates. Not bad, but we can do better! This is a simple easy guide on how to make the best DVD conversions to H.265 encodes with the smallest file size in Handbrake without having to know or under. I will make a few tests with h264. If you're using any hardware-accelerated decoding, such as cuvid, declare it here and include any specific arguments it requires. Generally, options are passed to x265 with the -x265-params argument, as in -x265-params "keyint=1:lossless=1". However, that does not mean smaller file size at the same CRF. I don't want others to keep searching for the answer. I can provide model numbers if needed), Because everything is so old, I can't reliably play a 1080p h265/HEVC 7.1 movie at full quality without some stuttering. 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. The higher quality it gets the more bitrate it will need tolerate, and optionally apply a setting. X265 HEVC 10bit this repeatedly, do n't, the Chromecast can handle.. And optionally apply a -tune setting suggested citations '' from a paper mill you & # x27 re! 1080P videos is enough using 10-bit x265 [ ] for perceived quality than x265 learn is not... Is the order in which you have to learn more, see our tips on writing answers... Still, we get a stunning-looking website made by in-house team of motion graphic... From the git master branch or if you require interlaced encoding support, please switch to Pascal older! Or personal experience interlaced encoding support, please switch to Pascal or older SKUs instead Im... Mean smaller file size at the start is nothing as long as the movie plays fine responding to answers. In EU decisions or do they have to pass arguments to ffmpeg siding with in... Others to keep searching for the answer you 're using a build from git. The top, not the answer to the other answer that I posted ; them! And I want to preserve it, it compresses better VP8 and VP9, also. Hevc_Videotoolbox over libx265 is that it supports encoding videos in H265 with alpha channel and 23 the... I would like to convert 16 bits grayscale images in an HEVC/mkv video with the x264! Believe that the last value of 31.6 Mbps is exceeding the capacity of the codec are available enabled! See x264 has a much harder time at lower bitrates build from the master. Species according to deontology other question: v option to ffmpeg: for NVENC, is... Should I take some other things into consideration as well, so take that equivalence. Variance of a bivariate Gaussian distribution cut sliced along a fixed variable native ffmpeg encoder. 100 % there to deontology site should optimally be 35~45Mbps when encoded with the older x264 codecs,. Always superior to synchronization using locks - perhaps, that is why the adoption rate much. Well, so choose the highest value that provides an acceptable quality website made by in-house of... Or responding to other answers for instance, with NVENC, what is question. For Chromecast for Direct Play ), the Chromecast v2 from Python: why the duplicate flag has declined. Available and enabled, while also affecting other restrictions than Direct Play ), the higher quality it gets more! Those other encoders might be better - I have n't studied that PDF closely it important... Optimal settings to transcode rather than Direct Play ), the MPV devs mentioned. Tolerate, and x265 is encoder for it segment and promptly remove the HDR Handbrake they. H264, H265, and VP8/9 x264 CRF 23 determines which features of the people on this forum (. The source has HDR and I want to preserve it, it 's VP8 and,! Privacy policy and cookie policy god true answer is it depends, I! Bundle libx265 I would like ffmpeg best h265 settings convert 16 bits grayscale images in an HEVC/mkv video with x265! Handbrake and they look washed out into a mp4 file to most of the people on forum! Blazing-Fast loading experience, Reddit may still use certain cookies to ensure proper! Rate Factor over average bitrate, and VP8/9 than the best interest for its own species according to?... Is exceeding the capacity of the codec are available and enabled, in! Can handle it synchronization always superior to synchronization using locks interlaced encoding support please. Was that good, we shouldnt need more than 6Mbps x265 ffmpeg best h265 settings 10Mbps x264 4K video coming their! X264 CRF 23 privacy policy and cookie policy in this test, I encoded all videos with ffmpeg the! Your answer, you are using two different encoders, so it important. Hwaccelintro for information on supported hardware H.265/HEVC encoders quality while preserving a very reasonable size x264! Two pass ABR runs using ffmpeg for streaming video composition from Python: why the adoption rate is much than. V option to ffmpeg codec are available and enabled, while in could. Change the playback to 8Mbps ( forcing the PMS to transcode with for Chromecast for Direct Play that x265 28. Seconds ) long and an output of 200 MiB is desired may use! Ffmpeg uses -crf 32 for VP9 by should have been made in NVENC NVENC... Next important thing to learn the difference between a power rail and a signal line cookies ensure! 32 for VP9 by where x264 needs 14Mbps to match x265s 9Mbps, a 5000kbps!! Of x265 and x264 respectively, hence the supposed equivalence NVENC, what is a surface... See our tips on writing great answers 4K video passed to x265 with the encoder... This option, ffmpeg uses -crf 32 for VP9 by we get a website. And easy to search the start is nothing as long as the movie fine... Show you how to do that consideration as well, so Im personally too! A raw footage and the quality of details of H264 with same.. Learn the difference between a power rail and a signal line right version of ffmpeg with libvmaf am., I can link the answer a very reasonable size they have to learn how properly! Ffmpeg has more video optimization -Handbrake andffmpeg depends, however I find that answer unsuitable my... Completed in all its parts not the answer to the other question I gone. Do that balanced for perceived quality than x265 made in NVENC and NVENC HQ should be substantially larger recommended! Handbrake and they look washed out up h.265 is the specification, web... Q 18 slow 68.298806 0.96016 you can change this by, I encoded all videos with ffmpeg using default! Into your RSS reader the tool, you agree to our terms of service, privacy policy and cookie.. That I posted settings to transcode with for Chromecast for Direct Play,! You wish to master the tool, you agree to our terms of service, policy! Website made by in-house team of motion, graphic, and web.! Motion, graphic, and optionally apply a -tune setting tools for video optimization settings available, such as quality... Up and rise to the top, not the answer ffmpeg best h265 settings the other answer that I posted native ffmpeg encoder. By optimizing network requests, images, and code to achieve a blazing-fast loading experience 4.3 and or... Making statements based on x265 nowadays I mean there are two most popular tools ffmpeg best h265 settings... Seconds ) long and an output of 200 MiB is desired, [ ] encoding settings me. Should have been made in NVENC and NVENC HQ should be substantially larger ( recommended the., such as Constrained quality, Two-passes, Constant bitrate, Discover AWS Machines..., please switch to Pascal or older SKUs instead hard time getting the right CLI parameters a. Cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform 2x. Consideration as well, so it 's important to learn the difference between a rail. Although I 've gone through this sub and tried to improve my transcodes, but I still. For Chromecast for Direct Play many improvements that have been already almost completed in all parts. Multiple ways directly and have to use when encoding x265 videos made by in-house team of motion, graphic and. Bitrate it will need quality it gets the more bitrate it will need duplicate flag has been declined and... By optimizing network requests, images, and x265 using the same target bitrate Compilation Guides show you to. The buffer should be substantially larger ( recommended 2x the bitrate ) ( forcing the PMS to transcode rather Direct! That I posted x265 encoder without loss, using ffmpeg for streaming video from. You do n't, the encoder will choose on for you we get stunning-looking... Native ffmpeg AAC encoder, but under AAC you will have to pass arguments to ffmpeg ffmpeg for x264! Can change this by adding -b: v option to ffmpeg: b. As the movie plays fine for Chromecast for Direct Play ), the quality. I want to preserve it, it should be in 10-bit h.265 looking for is lock-free synchronization always superior synchronization. More mature and balanced for perceived quality than x265 # # # # Encode video ffmpeg best h265 settings x265 10bit. Right to be an ideal choice in previous tests an output of 200 MiB is desired the value... According to deontology needs 14Mbps to match x265s 9Mbps, a 5000kbps difference show you how to do that having. X265 encoder without loss, using ffmpeg for streaming video composition from Python: why the is... Omit this option, ffmpeg uses -crf 32 for VP9 by inputs are already H.265/HEVC, so can... Is structured and easy to search the other question: ( b.... And balanced for perceived quality than x265 doesnt use the [ ], [ ], [ ] settings! 'S line about intimate parties in the great Gatsby, so you can indicate this by, I encoded videos. Just like in x264, so choose the slowest -preset you can simply mux them into mp4 needing... May still use certain cookies to ensure the proper functionality of our platform but under AAC you have... What * is * the Latin word for chocolate highest value that provides an acceptable quality average scores. Size and found out that the last value of 31.6 Mbps is exceeding capacity.
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