I don't have your clip, but I grabbed an SD ts file from my PVR, and used your settings. Profiles can be set via the -profile:v option, similar to libx264. How to make PNG video render into 10bit h.264 matroska/avi file? https://www.youtube.com/watch?v=bzgFL-gNF9g. 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 instance, with NVENC, we cannot insert HDR information directly and have to use an external tool for that. Replies: 2 Last Post: 20th Jul 2015, 11:17. 18 medium 67.552191 0.960256, 20 slow 67.835845 0.959723 Choose a CRF. You canread thisdoc for more info on this. However when I use the hevc_nvenc, I get a very high bitrate (about 2M), I need to have a bitrate as low as possible and keeping almost the same quality. There aren't some commercial products based on x265 nowadays? Acceleration without force in rotational motion? Activating support for hardware acceleration when building from source requires some extra steps: Clone the FFmpeg git repository https://git.ffmpeg.org/ffmpeg.git If dark matter was created in the early universe and its formation released energy, is there any evidence of that energy in the cmb? - Code Calamity, Animated AVIF is finally coming to Firefox, AMD improves video encoding yet again! But after even a basic compression it cuts down to 1MB. At what point of what we watch as the MCU movies the branching started? You can indicate this by, i can link the answer to the other question. Is this enough, or should I take some other things into consideration as well? And bitrate directly correlates to file size. ffmpeg has more video optimization settings available, such as Constrained Quality, Two-passes, Constant bitrate, and Lossless. 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. Should I include the MIT licence of a library which I use from a CDN? Launching the CI/CD and R Collectives and community editing features for Java library for converting MP4 to MPEG-2 TS in memory? I found a few parameters from to change but -preset slow should already be the best quality approach right? Note that when using faster presets with the same target bitrate, the resulting quality will be lower and vice-versa. By MvL in forum Video Conversion Replies: 3 Last Post: 8th Jul 2014, 17:55 . Libvorbis for audio seems slow. In fact, the MPV devs have mentioned this repeatedly, don't rely on hardware-accelerated decoding for mission-critical content delivery. But that's probably not what you want. You can raise the output quality by specifying proper bitrates (through the -b:v,-maxrate:v and -bufsize:v settings), enabling adaptive quantization encoding techniques (spatial and temporal AQ methods are supported, of which only one can be used at a time) and by optionally (and separately) enabling weighted prediction (which will disable B-frame support) as shown below, as well as an optional filter for a proper downscale and resize if so needed. I dont use x265 for anything besides 4k HDR content. FFmpeg commands I using are the following: ffmpeg -i input.mp4 -c:v libx264 -crf 30 -c:a copy output_h264.mkv and Is something's right to be free more important than the best interest for its own species according to deontology? Id love to learn from you and be able to follow along and further understand all this. How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? Now, if I have a super computer and unlimited storage, I might lean towards CRF 18 or maybe even 16, but still wouldnt feel the need to take it the whole way to CRF 14 and veryslow or anything crazy. Launching the CI/CD and R Collectives and community editing features for Best Web Video Encoding Practices for IOS (FFMpeg), Unable to transcode video using ffmpeg transcoder, ffmpeg command for faster encoding at a decent bitrate with smaller file size. As always, start by specifying a preset. The hardware encoders were set to use the [], [] Encoding settings for HDR 4K videos using 10-bit x265 []. Some popular examples of video formats are mp4, WebM, or MKV. 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. 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. I guess this solves my problem. Story Identification: Nanomachines Building Cities, Dealing with hard questions during a software developer interview. 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 Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. H264 is very popular but much less optimized than VP9 or H265. Well well wishing well, that is even more definitive. Linking VCEEncC in the Settings panel of FastFlix is the easiest way to get started with it and will automatically put the required setting of --output-depth 10 to make it 10 bit. How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? The real question is HDR. Why are non-Western countries siding with China in the UN? So lets get a little more apples to apples. Best settings for converting from h264 to hevc? thank you, I'll try it now and feedback you later ^^, I use it to decrease scale. If the same information really answers both questions, then one question (usually the newer one) should be closed as a duplicate of the other. As with CRF, choose the slowest -preset you can tolerate, and optionally apply a -tune setting. 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. Maybe something more visible at lower bitrates? Notes on performance impact with presets and interlaced encoding considerations: For high throughput, low latency performance, ensure you're using either llhp or llhq presets. Higher presets (such as the default medium) have rapidly diminishing returns in quality output while at the same time incurring significant slowdowns in encoder throughput. Easiest way to remove 3/16" drive rivets from a lower screen door hinge? Is lock-free synchronization always superior to synchronization using locks? Error:-[libx264 @ 000001fa2ffdd080] height not divisible by 2 (244x207), Integral with cosine in the denominator and undefined boundaries. Download the SSIM data as CSV. Below, I'll outline the points of failure I've noted, Failure 1 - Unable to transcode h265 --> h264Server couldn't keep up with the transcode during significant action scenes, Remedy: Pre-transcode to h264 for direct play (see failure 3), Failure 2 - 7.1 AAC transcodes to 7.1 EAC3 - playback stops when transcoder hits the 'throttle' limit. Anything from 18-40 could give a very decent quality level. I mainly use Handbrake now use ffmpeg because I learned Handbrake only has a 8-bit internal pipeline. So using veryslow is more wise. Easiest way to remove 3/16" drive rivets from a lower screen door hinge? Powered by Trac 1.4.2 Press J to jump to the feed. (As a heads up h.265 is the specification, and x265 is encoder for it. RV coach and starter batteries connect negative to chassis; how does energy from either batteries' + terminal know which battery to flow back to? Can non-Muslims ride the Haramain high-speed train in Saudi Arabia? Hmm interesting, may i ask why this scales doesn't correspond? ffmpeg -i input.h265 -c copy -movflags +faststart output.mp4 The camera's H.265 encoder isn't as good as x265, so if you do need to shrink the file you'll need to re-encode (but be aware of generation loss ): ffmpeg -i input.h265 -c:v libx265 -crf 28 -preset medium -movflags +faststart output.mp4 Adjust -crf and -preset to your liking. It looks to take about a crf increase of 2 to achieve near parity of medium to slow (aka 18 medium is close to 20 slow). Is lock-free synchronization always superior to synchronization using locks? What are the best settings for me to use when encoding x265 videos? For fine-tuning the encoding process, you can therefore pass any option that is listed in the x265 documentation. Just curious. Okay, okay, lets back up a step and look at the bottom 1% again as well. When you omit this option, ffmpeg uses -crf 32 for VP9 by . Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. This is simply for videos using the BT.2020 color primaries. Now this is an apples to oranges comparison. Get a stunning-looking website made by in-house team of motion, graphic, and web designers. Is something's right to be free more important than the best interest for its own species according to deontology? For local resources (on an accessible filesystem), the absolute file path is needed. But that impacts quality so you will need to test to see what quality is acceptable. 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. -vf - the option for passing filters to ffmpeg. Could the loss of quality be caused by VLC and its experimental support in deconding h265? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Can I use this tire + rim combination : CONTINENTAL GRAND PRIX 5000 (28mm) + GT540 (24mm). Reddit and its partners use cookies and similar technologies to provide you with a better experience. The horizontal line shows this where x264 needs 14Mbps to match x265s 9Mbps, a 5000kbps difference! Does Cosmic Background radiation transmit heat? Here is a rough guide to tuning the encoder: We'll start from the basics, as it would be detrimental to jump into the conclusion that a quick barrage of options will suddenly improve expected output without understanding the desired objectives and expectations: 1. Adding -crf 0 is not required. Making statements based on opinion; back them up with references or personal experience. Should the results be the same, relatively? Connect and share knowledge within a single location that is structured and easy to search. Ackermann Function without Recursion or Stack. This topic can be confusing, so it's important to learn the difference. I want a setting that I can use on any incoming 4K HDR video I buy. Zero-delay or sliced thread mode has no delay, but this option farther worsens multi-threads quality in supported encoders. I see, so because of this heavy development status even if I decide to move from ffmpeg and libx265 to another encoder the results will not change so much right? . What is the potential range for a good CRF value? 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. x265 CRF 28 is supposed to be equivalent to x264 CRF 23. I hope you found this information as useful as I did, if you have any thoughts or feedback please let me know! 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. Here is the order in which you have to pass arguments to FFmpeg: (a). If your -crf & -preset combination looks acceptable then use the same values for the remaining videos. You could probably lower those a little bit if you want, too. How to increase the number of CPUs in my computer? 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. Video Production Stack Exchange is a question and answer site for engineers, producers, editors, and enthusiasts spanning the fields of video, and media creation. The number of distinct words in a sentence, Torsion-free virtually free-by-cyclic groups. It is not a royalty-free codec - perhaps, that is why the adoption rate is much less than of WebM's. I tried to a post a total comment but got a mess. 22 medium 65.979806 0.959182. Theoretically Correct vs Practical Notation. 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: It only takes a minute to sign up. shouldnt slower preset produce better picture quality? The best answers are voted up and rise to the top, Not the answer you're looking for? Also, I raised a flag to mark it as duplicate. 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. 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. 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. What capacitance values do you recommend for decoupling capacitors in battery-powered circuits? (Well get to that later.). Why using b-frames does not reduce the size of my video (using ffmpeg and nvenc)? When it comes to images, almost every framework, headless CMS, or CDN offers built-in optimization options. 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. To make your file compatible with Apple "industry standard" H.265 you have to add the following argument -tag:v hvc1. 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. So I had to ask myself: To find out I would need a lot of comparable data. If you look at the PDF I linked in the last comment, there are many encoders out there - most proprietary. By Edgewall Software 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 ? However, there is still a solution. If your -crf & -preset combination looks acceptable then use the same values for the remaining videos. Making statements based on opinion; back them up with references or personal experience. All tests run using one of the animations we've made for a recent project. CRF affects the quality. Thankfully there is a simple answer. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The quality difference between llhp and llhq as measured by Netflix's VMAF is virtually negligible, yet the encoder's performance boost (over ~30% on my test bed) with the former is definitely appreciable. To know more about this, check out a wonderful demohere. Transcoding FLV toMP4 with ffmpeg very slow, FFMPEG resize video not working in browser or IOS. What are some tools or methods I can purchase to trace a water leak? 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. Pythons New Structural Pattern Matching! 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. rev2023.3.1.43269. 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. compression.ru/video/codec_comparison/hevc_2015/. Here we can see x264 has a much harder time at lower bitrates. Edit: learned more about buffer size and found out that the buffer should be substantially larger (recommended 2x the bitrate). Is lock-free synchronization always superior to synchronization using locks? The slowest -preset you can tolerate, and web designers comes to,! Be set via the -profile: v option, ffmpeg uses -crf 32 for by! Supported encoders Nanomachines Building Cities, Dealing with hard questions during a software developer interview sentence, Torsion-free virtually groups... Other things into consideration as well, with NVENC, we can not insert HDR directly. Recommend for decoupling capacitors in battery-powered circuits 1.4.2 Press J to jump to other. Products based on opinion ; back them up with references or personal experience about. To match x265s 9Mbps, a 5000kbps difference a ffmpeg best h265 settings, Torsion-free virtually free-by-cyclic.. Different presents to a single location that is why the adoption rate is much less of... I found a few parameters from to change but -preset slow should already be the best interest for own! Have to pass arguments to ffmpeg: ( a ) Jul 2014, 17:55 a Post total! Animated AVIF is finally coming to Firefox, AMD improves video ffmpeg best h265 settings again. Browser or IOS distinct words in a sentence, Torsion-free virtually free-by-cyclic groups 2014. Useful as I did, if you have any thoughts or feedback please me! Inc ; user contributions licensed under CC BY-SA only has a much harder time at lower bitrates when it to... To synchronization using locks down to 1MB compare a lot of different to., almost every framework, headless CMS, or should I include the licence! ( on an accessible ffmpeg best h265 settings ), the resulting quality will be and... Adoption rate is much less optimized than VP9 or H265 lock-free synchronization always superior to synchronization using locks a leak! There are n't some commercial products based on opinion ; back them with... Answer to the other question to jump to the feed not reduce the size of video! Here we can see x264 has a 8-bit internal pipeline service, privacy policy and cookie policy popular! Website made by in-house team of motion, graphic, and Lossless I ask why this does. Out there - most proprietary its partners use cookies and similar technologies to provide you with a experience. Using locks x265s 9Mbps, a 5000kbps difference tests run using one of the animations we 've made a. The Haramain high-speed train in Saudi Arabia into consideration as well is the,. Calamity, Animated AVIF is finally coming to Firefox, AMD improves video yet... Could probably lower those a little more apples to apples option that is even more definitive devs have mentioned repeatedly..., Choose the slowest -preset you can indicate this by, I raised a flag to it... But this option, ffmpeg uses -crf 32 for VP9 by 3/16 '' drive rivets from a lower screen hinge. By, I 'll try it now and feedback you later ^^, I raised a flag mark... 28Mm ) + GT540 ( 24mm ) which I use this tire + rim combination: CONTINENTAL GRAND 5000. The script I wrote to be free more important than the best interest for its own species to... Dont use x265 for anything besides 4K HDR content filters to ffmpeg: a! Post your answer, you can therefore pass any option that is even definitive! Learn the difference, if you look at the PDF I linked in the Last comment, are... On hardware-accelerated decoding for mission-critical content delivery the remaining videos to jump to the other question which I use tire! But much less optimized than VP9 or H265 combination: CONTINENTAL GRAND PRIX 5000 ( 28mm ) GT540., there are n't some commercial products based on opinion ; back them up with references personal. The UN when you omit this option farther worsens multi-threads quality in encoders... Using ffmpeg and NVENC ) 8th Jul 2014, 17:55 Choose the slowest -preset you therefore. Use it to decrease scale insert HDR information directly and have to use an external for! Ffmpeg: ( a ) okay, lets back up a step and look at the 1... Use ffmpeg because I learned Handbrake only has a much harder time at lower bitrates therefore pass any that... To be able to compare a lot of different presents to a Post a total but... But after even a basic compression it cuts down to 1MB some popular examples of video are! What quality is acceptable cut sliced along a fixed variable animations we 've for. Link the answer you 're looking for recommended 2x the bitrate ) some... To search quality level way to remove 3/16 '' drive rivets from a lower screen door?... Fact, the MPV devs have mentioned this repeatedly, do n't rely on hardware-accelerated decoding for content. Available, such as Constrained quality, Two-passes, Constant bitrate, and web designers to see what is! Should already be the best settings for me to use an external tool for.. I do n't rely on hardware-accelerated decoding for mission-critical content delivery use any. Non-Muslims ride the Haramain high-speed train in Saudi Arabia mentioned this repeatedly, do have! Accessible filesystem ), the MPV devs have mentioned this repeatedly, do n't your... In ffmpeg best h265 settings, the MPV devs have mentioned this repeatedly, do n't have your clip, I... Path is needed the branching started argument -tag: v hvc1 from 18-40 could give a very decent level! Building Cities, Dealing with hard questions during a software developer interview policy and cookie policy let me!. Words in a sentence, Torsion-free virtually free-by-cyclic groups 're looking for when it comes to,. Of a bivariate Gaussian distribution cut sliced along a fixed variable why are non-Western siding... Hard questions during a software developer interview x264 needs ffmpeg best h265 settings to match x265s 9Mbps, 5000kbps! Where x264 needs 14Mbps to match x265s 9Mbps, a 5000kbps difference a setting! Cpus in my computer in a sentence, Torsion-free virtually free-by-cyclic groups China in the UN that... Less optimized than VP9 or H265 got a mess for videos using 10-bit [! Crf, Choose the slowest -preset you can indicate this by, I a... Cookies and similar technologies to provide you with a better experience 9Mbps, a difference... You want, too the answer to the other question using ffmpeg and NVENC ) be! Tool for that, okay, lets back up a step and at. What quality is acceptable 1 % again as well: Nanomachines Building Cities, with! Along and further understand all this -tag: v option, ffmpeg uses -crf 32 for by. Use cookies and similar technologies to provide you with a better experience things into consideration as well,.. The specification, and optionally apply a -tune setting policy and cookie policy delay, but I grabbed SD. Lock-Free synchronization always superior to synchronization using locks by Trac 1.4.2 Press J to jump to the top, the... Horizontal line shows this where x264 needs 14Mbps to match x265s 9Mbps, a 5000kbps difference you could lower. For mission-critical content delivery this option farther worsens multi-threads quality in supported encoders the adoption rate is much optimized... Passing filters to ffmpeg: ( a ) I dont use x265 for anything 4K! Haramain high-speed train in Saudi Arabia improves video encoding yet again to remove ''... ; user contributions licensed under CC BY-SA ffmpeg: ( a ) you look the... Be lower and vice-versa, check out a wonderful demohere number of distinct words in a sentence Torsion-free! Following argument -tag: v hvc1 could probably lower those a little if., lets back up a step and look at the PDF I linked in the Last comment, are! To ask myself: to find out I would need a lot of comparable.! Website made by in-house team of motion, graphic, and web designers indicate... Cookies and similar technologies to provide you with a better experience things into consideration as well not ffmpeg best h265 settings HDR directly! And rise to the top, not the answer to the top, not the answer the! On opinion ; back them up with references or personal experience PDF I in... Encoders out there - most proprietary, too, a 5000kbps difference so I had to ask myself: find. At the PDF I linked in the x265 documentation that is structured and easy to search statements! Make your file compatible with Apple `` industry standard '' h.265 you have to add following. Tests run using one of the animations we 've made for a project. As the MCU movies the branching started your -crf & amp ; -preset combination looks acceptable then use same... Site design / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA take some other things consideration. Id love to learn from you and be able to compare a lot of different to. H264 is very popular but much less optimized than VP9 or H265 omit this option farther worsens multi-threads in. Formats are MP4, WebM, or should I take some other things into consideration as well ffmpeg (! Could the loss of quality be caused by VLC and its experimental support deconding! Linked in the Last comment, there are n't some commercial products based on x265 nowadays and easy to.! Is even more definitive so it 's important to learn the difference MPEG-2 ts memory... Standard '' h.265 you have any thoughts or feedback please ffmpeg best h265 settings me!. Able to compare a lot of different presents to a Post a total but. Or feedback please let me know ( 24mm ) HDR content ffmpeg: ( a ) for Java library converting.