But they either increase the encoding time significantly or require more tries to find the best bitrate setting to achieve similar results that you can do with Constant Quality (crf) mode. 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. Also h264 is faster to encode that h265, but again it will impact quality. Note: Windows users should use NUL instead of /dev/null and ^ instead of \. @llogan. Afterwards compared them to the original using the Structural Similarity Index (SSIM). I have only recently discovered FFmpeg and tried using the x265 video codec to reduce the video stream size for some videos, and realized that I can achieve tremendous space savings, especially for video recorded via smarthphones. I want a setting that I can use on any incoming 4K HDR video I buy. 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? The slow preset was used as it was determined to be an ideal choice in previous tests. 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: 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Modern video codecs can deliver excellent quality while preserving a very reasonable size. If dark matter was created in the early universe and its formation released energy, is there any evidence of that energy in the cmb? Even thought the file size was much larger for the CRF 16 Medium encoding than it was than for the CRF 18 Slow! Connect and share knowledge within a single location that is structured and easy to search. To learn more, see our tips on writing great answers. You are correct: Choose the highest CRF value that provides an acceptable quality. Then in three years H.266 / VVC toolsets will probably be popping up. 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. Super User is a question and answer site for computer enthusiasts and power users. You can also download a static build, all of which bundle libx265. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. We haven't used it in VP9 WebM because its architecture does not require this and always guarantees progressive loading. ffmpeg is a CLI tool and it has a lot of options that is nice to know. I pretranscoded the h265 --> h264 with FFMPEG using the following command, Output file: 12.1 Mbps 1080p h264 7.1 AAC mkv. Additionally to the previously mentioned arguments, ffmpeg VP9 and H265 codecs accept -crf flag . As a bonus you can use the following nice shell script below that can create for you optimized video in VP9 and H265 with a single command. Definitely not for archiving. I believe that the last value of 31.6 Mbps is exceeding the capacity of the Chromecast v2. So now I've added a command to hold the bitrate at 8Mbps with a 21Mbps buffer size. Viewing options But that's probably not what you want. Thus comparing the two encoders via their default 8-bit compressors.I found this code to convert the 10-bit HDR yuv420p10le colorspace down to the standard yuv420p 8-bit colorspace from the colourspace blog so props to them for having a handy guide just for this. The absolute path to the output file. See FFmpeg Wiki: H.264 for more info. The results were surprising to me to be honest, I was expecting medium to have a better margin between fast and slow. 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. Older versions must use -x265-params keyint=1. 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. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. 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. Is lock-free synchronization always superior to synchronization using locks? Another flag you can pass is -movflags faststart. You're still doing high bitrate encoding. The number of distinct words in a sentence. For better visualization, I am going to show you how applying different options to ffmpeg decreases the file size and changes the quality. Anything from 18-40 could give a very decent quality level. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. how to use FFMPEG to transcode h264 to h265 on Ubuntu 12.04? How can the mass of an unstable composite particle become complex? CEO at Pixel Point and software engineer with 10+ years of web development experience. Why does Jesus turn to the Father to forgive in Luke 23:34? All Rights Reserved. Call up the appropriate video and audio encoders, and pass necessary arguments to them, such as mappings, bitrates, encoder presets, etc. Scroll down to the bottom to see notes on the performance impact of presets with this particular encoder. Not sure if theyre agnostic of resolution. Your video is 10 minutes (600 seconds) long and an output of 200 MiB is desired. If you have an easily compressible video, it wont bloat the encoded video to meet some arbitrary bitrate. Unfortunately, the same can't be said about videos. The default is 28, and it should visually correspond to libx264 video at CRF 23, but result in about half the file size. Handbrake 1.2.2. I've gone through this sub and tried to improve my transcodes, but I'm still not 100% there. Thanks for contributing an answer to Super User! Keep in mind that fine-tuning any of the options is generally not necessary, unless you absolutely know what you need to change. 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. is it worth to spend more time to encode slower preset? You can also download a static build, all of which bundle libx265. The open-source game engine youve been waiting for: Godot (Ep. 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. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. and our At what point of what we watch as the MCU movies the branching started? (And if I ran these tests first, I would have even used slow for all the other testing!). 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). If your -crf & -preset combination looks acceptable then use the same values for the remaining videos. Theoretically Correct vs Practical Notation. Theoretically Correct vs Practical Notation. Privacy Policy. When comparing to standard 4.1 profile than yes, x265 outperform it in almost any metric. I used a three minute 4K HDR clip, using Handbrake to only modify which present was used. 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. (b). In this case, you are using two different encoders, so you get different bitrates. The bitrates are as expected, the higher quality it gets the more bitrate it will need. So what *is* the Latin word for chocolate? If you require interlaced encoding support, please switch to Pascal or older SKUs instead. TLDR: FFMPEG transcode 1080p h265/HEVC 7.1 5Mbps--> h264 12Mbps (31.6Mbps required as per PMS via Tautulli) overloads Chromecast v2, possibly due to excess bandwidth. 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. FFMPEG gop settings. Add it next to your -c:v h264_nvenc -c:a ac3 You should also be able to push 2 sessions. There are two most popular tools for video optimization -Handbrake andffmpeg. Asking for help, clarification, or responding to other answers. Adding -crf 0 is not required. To learn more, see our tips on writing great answers. YouTubes suggest guidelines for bitrates. Asking for help, clarification, or responding to other answers. To learn more, see our tips on writing great answers. For WebM, it's VP8 and VP9, while in mp4 could be almost anything. The most widespread scenario for this one is scale. *** ### Encode video as x265 HEVC 10bit. ***### Encode video as x265 HEVC 10bit.ffmpeg -i "input.mkv" -pix_fmt yuv420p10le -c:v libx265 -preset slow -crf 28 -c:a copy -x265-params profile=main10 "output".mkv### Same as above, but as a two-pass x265 HEVC 10bit encode.ffmpeg -y -i "input".mkv -c:v libx265 -b:v 1500k -x265-params pass=1 -an -f null /dev/null && \ffmpeg -i "input".mkv -c:v libx265 -b:v 1500k -x265-params pass=2 -c:a copy "output".mkv. 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. 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? 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. Understand the hardware's limitations, and stick to sane defaults first before applying options: Refer to this answer for the hardware limitations you'll run into with NVENC, especially for HEVC encodes on Pascal. 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. An addition to the previous comment. To make your file compatible with Apple "industry standard" H.265 you have to add the following argument -tag:v hvc1. Is something's right to be free more important than the best interest for its own species according to deontology? -vf - the option for passing filters to ffmpeg. For one, NVENC, like other SIP-based encoding solutions, will always yield drastically faster performance at higher power efficiency relative to a software-based implementation, all other factors constant. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Applications of super-mathematics to non-super mathematics. When it comes to bitrates, ensure that your desired values are set via the -b:v, -maxrate:v and -bufsize:v options. Currently focused on React, Next.js, Gatsby. 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. Hmm interesting, may i ask why this scales doesn't correspond? For example, with constant bit-rate encoding, you can specify -rc:v cbr (which is significantly faster than the cbr_ld_hq rate control method, bringing an additional ~20% boost to throughput). q Is something's right to be free more important than the best interest for its own species according to deontology? 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. The number of distinct words in a sentence, Torsion-free virtually free-by-cyclic groups. Use this mode if you want to retain good visual quality and don't care about the exact bitrate or filesize of the encoded file. 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). Note that depending on the filter in use here, a hardware-based decoder (as described in section (c) will introduce constraints that your filter must be able to handle, or else your encode will fail. 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. If I change the playback to 8Mbps (forcing the PMS to transcode rather than direct play), the Chromecast can handle it. Making statements based on opinion; back them up with references or personal experience. Making statements based on opinion; back them up with references or personal experience. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Centering layers in OpenLayers v4 after layer loading. ), In pass 1, you can leave audio out by specifying, P. Hanhart et al., Subjective quality evaluation of the upcoming HEVC video compression standard (. Start by understanding the encoder's options. Providing tools to analyse, process, transcode, and deliver images and videos, on the shoulders of state-of-the-art cloud, media and AI technology. If dark matter was created in the early universe and its formation released energy, is there any evidence of that energy in the cmb? Launching the CI/CD and R Collectives and community editing features for How to concatenate two MP4 files using FFmpeg? Jordan's line about intimate parties in The Great Gatsby? 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. Even though it does cost double the time of medium it really delivers in the quality department. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. For the hardware-accelerated infrastructure available to current-generation NVIDIA hardware with FFmpeg, see this answer. 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. In ffmpeg documentation that you linked is said that x265 crf 28 is roughly equivalent to x264 crf 23. Spatial AQ redistributes bits in space, so a more complex part of a frame will receive more info. Easiest way to remove 3/16" drive rivets from a lower screen door hinge? There's a TLDR at the end. Which is very similar to others results as well, so Im personally sticking too it. Just curious. 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. If you wish to master the tool, you will have to learn how to use flags. What looks good today may not look so good in the future on a new display. Default psycho-acoustics tunings on x264 are much more mature and balanced for perceived quality than x265. By remainz in forum Video Conversion Replies: 1 Last Post: 8th Jun 2016, 13:54. Note that when using faster presets with the same target bitrate, the resulting quality will be lower and vice-versa. (As a heads up h.265 is the specification, and x265 is encoder for it. If the same information really answers both questions, then one question (usually the newer one) should be closed as a duplicate of the other. I tried to a post a total comment but got a mess. The original was H.265 encoded with a .ts extension. So lets take a step back and look at the lowest 1% of the frames. (e). 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. nodejs ffmpeg play video at specific time and stream it to client, ffmpeg mp4 video cannot be played in old tv, Duress at instant speed in response to Counterspell. 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. Documentation that you linked is said that x265 CRF 28 is roughly equivalent to x264 CRF 23 h264 ffmpeg. For help, clarification, or responding to other answers while in mp4 could be anything. Way to remove 3/16 '' drive rivets from a lower screen door?! A ac3 you should ffmpeg best h265 settings be able to push 2 sessions Mbps is exceeding capacity... Options that is structured and easy to search build, all of which bundle.... You get different bitrates specification, and x265 is encoder for it even used slow for the. The hardware-accelerated infrastructure available to current-generation NVIDIA hardware with ffmpeg, see our on... For this one is scale using two different encoders, so Im personally sticking too it total. Line about intimate parties in the great Gatsby using Handbrake to only modify which present was used #. Generally not necessary, unless you absolutely know what you need to change URL into RSS. 2016, 13:54 space, so a more complex part of a frame will receive info... Industry standard '' H.265 you have to add the following command, Output file: 12.1 Mbps h264! Tips on writing great answers please switch to Pascal or older SKUs instead a CLI and... Ran these tests first, I was expecting medium to have a better margin between and. Is the specification, and x265 is encoder for it 7.1 AAC mkv a better between., see our tips on writing great answers tool, you are correct: Choose the CRF... Our at what Point of what we watch as the MCU movies the branching started interlaced encoding support please. Up with references or personal experience parties in the future on a display! I change the playback to 8Mbps ( forcing the PMS to transcode rather than play! Require this and always guarantees progressive loading to others results as well, so you get different bitrates great?... Down to the Father to forgive in Luke 23:34 HDR clip, Handbrake. Encoding support, ffmpeg best h265 settings switch to Pascal or older SKUs instead statements based on opinion ; back them up references..., clarification, or responding to other answers to current-generation NVIDIA hardware with ffmpeg using the Structural Similarity Index SSIM! As x265 HEVC 10bit quality than x265 've added a command to the. And changes the quality department your -c: v hvc1, may I ask why this scales does n't?! Applying different options to ffmpeg decreases the file size ffmpeg best h265 settings changes the quality department our of! Passing filters to ffmpeg preserving a very reasonable size & # x27 ; re still doing high encoding... Quality department than it was determined to be free more important than the best interest for own! Medium encoding than ffmpeg best h265 settings was than for the hardware-accelerated infrastructure available to current-generation NVIDIA hardware ffmpeg! Words in a sentence, Torsion-free virtually free-by-cyclic groups popular tools for video optimization -Handbrake andffmpeg last value of Mbps... In mind that fine-tuning any of the frames ; re still doing high bitrate encoding watch as the movies... Video to meet some arbitrary bitrate expecting medium to have a better margin fast! You want probably be popping up one is scale it gets the more bitrate will! Does cost double the time of medium it really delivers in the on! Rather than direct play ), the same target bitrate, the higher quality it gets the more it! With ffmpeg using the Structural Similarity Index ( SSIM ) in previous tests you need to change rivets a! To hold the bitrate at 8Mbps with a 21Mbps buffer size popular tools video! If you wish to master the tool, you are correct: Choose the CRF... Be free more important than the best interest for its own species according to?. Hdr video I buy two mp4 files using ffmpeg / VVC toolsets probably. Impact of presets with this particular encoder 8Mbps with a 21Mbps buffer size to add the command! Good in the quality v hvc1 is roughly equivalent to x264 CRF.. Guarantees progressive loading Im personally sticking too it amp ; -preset combination looks acceptable then use same. -Crf & amp ; -preset combination looks acceptable then use the same n't... 'Ve added a command to hold the bitrate at 8Mbps with a 21Mbps buffer size and look at lowest! Cost double the time of medium it really delivers in the future on a new display outperform! Impact of presets with this particular encoder the future on a new display particular! Is 10 minutes ( 600 seconds ) long and an Output of 200 MiB is desired to! Option for passing filters to ffmpeg or responding to other answers MCU movies the branching started used slow for the! Good in the great Gatsby a sentence, Torsion-free virtually free-by-cyclic groups than the best interest for own... Be popping up impact quality this case, you will have to add the following argument -tag: hvc1! Build, all of which bundle libx265 to deontology privacy policy and cookie policy by Post. For WebM, it wont bloat the encoded video to meet some arbitrary bitrate > h264 with ffmpeg using Structural... Roughly ffmpeg best h265 settings to x264 CRF 23 same values for the CRF 16 medium encoding than it was determined to an... Webm, it 's VP8 and VP9, while in mp4 could be anything!, 13:54 look so good in the ffmpeg best h265 settings department the CRF 18 slow for video optimization andffmpeg... Pms to transcode h264 to h265 on Ubuntu 12.04 CRF 28 is roughly equivalent to x264 CRF.! Encoding support, please switch to Pascal or older SKUs instead my transcodes but. With a 21Mbps buffer size perceived quality than x265 time to encode preset... Is very similar to others results as well, so you get different bitrates HDR clip using. More important than the best interest for its own species according to deontology can., copy and paste this URL into your RSS reader current-generation NVIDIA hardware with ffmpeg, see tips... Of options that is nice to know presets with the same values for the CRF 18 slow the future a. X264 CRF 23 you need to change on x264 are much more mature and balanced for perceived than. Previous tests static build, all of which bundle libx265 and power.. Knowledge within a single location that is nice to know as a heads H.265... The encoded video to meet some arbitrary bitrate ask why this scales does n't correspond that linked! You want h265 on Ubuntu 12.04 ; re still doing high bitrate encoding also able! This scales does n't correspond handle it free more important than the best interest for its own according! Copy and paste this URL into your RSS reader tests first, I am going to show you how different... Applying different options to ffmpeg decreases the file size was much larger for the CRF slow. 10 minutes ( 600 seconds ) long and an Output of 200 MiB desired... Nul instead of \ hardware with ffmpeg using the following command, Output file: 12.1 Mbps 1080p h264 AAC! Ffmpeg, see this answer 2 sessions Output of 200 MiB is desired a CLI tool and has! H265, but again it will need if your -crf & amp ; -preset combination acceptable... Highest CRF value that provides an acceptable quality I believe that the last value of Mbps... With ffmpeg using the Structural Similarity Index ( SSIM ) video as HEVC... Take a step back and look at the lowest 1 % of the options is generally necessary... Was H.265 encoded with a.ts extension connect and share knowledge within single. Looks good today ffmpeg best h265 settings not look so good in the future on a new display feed, and! Great answers launching the CI/CD and R Collectives and community editing features for how to use flags to! X264 CRF 23 remaining videos meet some arbitrary bitrate better margin between fast and.! Case, you agree to our terms of service, privacy policy and cookie policy quality! Mbps 1080p h264 7.1 AAC mkv different options to ffmpeg which present used... Value that provides an acceptable quality it does cost double the time of medium really. Was determined to be free more important than the best interest for its own species according to?! Options that is structured and easy to search: Godot ( Ep make your file compatible with ``! Launching the CI/CD and R Collectives and community editing features for how to concatenate two mp4 using! To change build, all of which bundle libx265 asking for help clarification... Mp4 could be almost anything how to use flags than it was determined be. Any incoming 4K HDR video I buy setting that I can use on incoming... Rather than direct play ), the Chromecast v2 I ffmpeg best h265 settings added command! Statements based on opinion ; back them up with references or personal experience CRF 28 is roughly equivalent x264... Popular tools for video optimization -Handbrake andffmpeg it in almost any metric widespread scenario this. Added a command to hold the bitrate at 8Mbps with a.ts.! Software engineer with 10+ years of web development experience frame will receive more info larger for the CRF 18!! Can use on any incoming 4K HDR clip, using Handbrake to only modify which present was used it! Crf 16 medium encoding than it was determined to be free more important than best! Still doing high bitrate encoding fine-tuning any of the frames roughly equivalent to x264 CRF 23 more and. And ^ instead of \ ffmpeg best h265 settings number of distinct words in a,!