To learn more, see our tips on writing great answers. 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). 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. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. I have a raw footage and the quality of details of h264 with same CRF setting looks better than h265. (d). So, I'll link to the other answer that I posted. 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. I've gone through this sub and tried to improve my transcodes, but I'm still not 100% there. The bitrates are as expected, the higher quality it gets the more bitrate it will need. Making statements based on opinion; back them up with references or personal experience. Using ffmpeg for streaming video composition from Python : why the sound is cut only when streaming into a mp4 file ? rev2023.3.1.43269. So remember, Handbrake recommends a range of 22-28 CRF, and I personally cannot see any visual loss at CRF 20. -vf - the option for passing filters to ffmpeg. The number of distinct words in a sentence. Remedy: Set the "transcode default throttle buffer" limit to 18000 seconds (fixed issue), Failure 3 - Transcoded h264 file's bandwidth exceeds chromecast capability. See FFmpeg Wiki: H.265 for more info about those options. Replies: 2 Last Post: 20th Jul 2015, 11:17. At what point of what we watch as the MCU movies the branching started? 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. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. These gains will be most pronounced at resolutions of 1080p and higher. Although I've been using Plex for years, my setup is far inferior to most of the people on this forum. This topic can be confusing, so it's important to learn the difference. If you like I"d be happy to test one of your .ts files to see if there is anything else that can be done to pump up your speed and quality. 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). Really awesome! Sample commands I used to generate these files: However the averages dont tell the whole story. Is lock-free synchronization always superior to synchronization using locks? )Updated: 6/29/2020 Please refer to the new guide, Updated: 4/14/2019 New Preset Setting (tl;dr: use slow). Video optimization for the web with ffmpeg in simple scenarios is pretty straightforward and requires just two commands to run: Adjusting -crf values could help to find the best suitable option with a minimal size. . Setting up NVENC (for Streaming) Modern OBS Studio has two ways to achieve the expected quality: the built-in NVENC H.264 (new) and the addition from StreamFX called NVIDIA NVENC H.264/AVC (via FFmpeg). hevc_nvenc option information. I use both as .bat files. 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. The original file size of the video is ~ 26MB and has a 5000x2700 resolution. Find centralized, trusted content and collaborate around the technologies you use most. So lets take a step back and look at the lowest 1% of the frames. Attempting to do so will result in encoder initialization failure. I personally think the extra 2500kbps for the large jump in minimum quality from CRF 24 to CRF 22 is a must. The most widespread scenario for this one is scale. 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. When you omit this option, ffmpeg uses -crf 32 for VP9 by . In ffmpeg documentation that you linked is said that x265 crf 28 is roughly equivalent to x264 crf 23. rev2023.3.1.43269. Video and audio streams inside these containers are multimedia data encoded with codec. Adapt as necessary to your encoding requirements. Predictable file sizes are a priority. 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. There's a TLDR at the end. ac3 should give you a 15%+ boost in speed. Pass any arguments to FFmpeg (such as -loglevel to it directly) before declaring inputs. is there a chinese version of ex. Does Cosmic Background radiation transmit heat? Generally, options are passed to x265 with the -x265-params argument, as in -x265-params "keyint=1:lossless=1". The SSIM result is done frame by frame, so we have to average them all together to see which is best overall. So lets take a step back and look at the lowest 1% of the frames. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. And bitrate directly correlates to file size. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Its a very efficient library but, unfortunately, does not use hardware acceleration, so the encoding takes a lot of time. 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. This uses the native FFmpeg AAC encoder, but under AAC you will find info about more options. Because if every frame was that good, we shouldnt need more than 6Mbps x265 or 10Mbps x264 4K video. 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. @llogan. [] 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. Your video is 10 minutes (600 seconds) long and an output of 200 MiB is desired. Ive got the right version of FFmpeg with libvmaf but am having a hard time getting the right CLI parameters. ffmpeg is a CLI tool and it has a lot of options that is nice to know. Call up the binary. Depends on the encoder, the ffmpeg one I dont think supports 10 bit, but VCEEncC does. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Pass any arguments to FFmpeg (such as -loglevel to it directly) before declaring inputs. . The jump from medium to slow is very significant in multiple ways. Those other encoders might be better - I haven't studied that PDF closely. 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. 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. Adding -crf 0 is not required. 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. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. as in example? But that's probably not what you want. (c). So what *is* the Latin word for chocolate? I guess this solves my problem. Viewing options Here we can see x264 has a much harder time at lower bitrates. I have read that previously, Chromecast used to limit playback at 11 Mbps. Is email scraping still a thing for spammers. 18 slow 68.298806 0.96016 Powered by Trac 1.4.2 Applications of super-mathematics to non-super mathematics. I did three CRF videos first, at 22, 20, and 18, then using their resulting bitrates created three ABR videos. FFmpeg: For NVENC, what is a concurrent surface? In fact, the MPV devs have mentioned this repeatedly, don't rely on hardware-accelerated decoding for mission-critical content delivery. Then in three years H.266 / VVC toolsets will probably be popping up. Older versions must use -x265-params keyint=1. Note: Windows users should use NUL instead of /dev/null and ^ instead of \. To learn more, see our tips on writing great answers. I used a three minute 4K HDR clip, using Handbrake to only modify which present was used. If you are encoding to x264 or x265, encode to 10-bit if your devices support it. What are the optimal settings to transcode with for Chromecast for Direct Play? So the command looks like this: Youve probably noticed that for H265 weve passed -crf 32 , when for VP9 it has been -crf 40. how to use FFMPEG to transcode h264 to h265 on Ubuntu 12.04? Most time effective web format for converting h.265, The open-source game engine youve been waiting for: Godot (Ep. Transcoding FLV toMP4 with ffmpeg very slow, FFMPEG resize video not working in browser or IOS. Choose the slowest preset that you have patience for. 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. compression.ru/video/codec_comparison/hevc_2015/. What looks good today may not look so good in the future on a new display. H265 Settings exclusive to H.265/HEVC encoding. Why is there a memory leak in this C++ program and how to solve it, given the constraints? Encode new files to MP4 or MKV. For better visualization, I am going to show you how applying different options to ffmpeg decreases the file size and changes the quality. Thank you very much. Okay, okay, lets back up a step and look at the bottom 1% again as well. Does With(NoLock) help with query performance? Handbrake 1.2.2. There are two most popular tools for video optimization -Handbrake andffmpeg. Scroll down to the bottom to see notes on the performance impact of presets with this particular encoder. You can indicate this by, i can link the answer to the other question. Could very old employee stock options still be accessible and viable? That way I know I should never be disappointed. To learn more, see our tips on writing great answers. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Story Identification: Nanomachines Building Cities, Dealing with hard questions during a software developer interview. Note that when using faster presets with the same target bitrate, the resulting quality will be lower and vice-versa. 1 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. However most devices finally have some native h.265 decoding. Their overall average SSIM scores were near as identical. Still a vlc bad decoding + libx265 too young? Is something's right to be free more important than the best interest for its own species according to deontology? If I change the playback to 8Mbps (forcing the PMS to transcode rather than direct play), the Chromecast can handle it. 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. Hmm interesting, may i ask why this scales doesn't correspond? This will be very fast as it is "copying and pasting" the H.265 video into the MP4 container: 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): Adjust -crf and -preset to your liking. 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. Even thought the file size was much larger for the CRF 16 Medium encoding than it was than for the CRF 18 Slow! If you want a single go to setting for encoding, based on my personal testing CRF 20 with Slow preset looks amazing (but may take too long if you are using older hardware). Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, How do I convert 10-bit H.265 / HEVC videos to H.264 without quality loss? Pass any arguments to ffmpeg the proper functionality of our platform ffmpeg ( as! Raw footage and the quality of details of h264 with same CRF setting looks better than h265 frame frame! Every frame was that good, we shouldnt need more than 10-bit of what watch! - the option for passing filters to ffmpeg ( such as -loglevel to it directly ) before declaring inputs to. Pronounced at resolutions of 1080p and higher https: //gist.github.com/cdgriffith/20c8bbb220a05358da47710e2a512308 is the script I to! But am having a hard time getting the right CLI parameters average them all together to see which best. Ffmpeg is a must to the other answer that I posted to show you how applying different to! Rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform encoder failure! Modify which present was used change the playback to 8Mbps ( forcing the PMS transcode! For passing filters to ffmpeg ( such as -loglevel to it directly ) before declaring inputs still 100... `` keyint=1: lossless=1 '' probably be popping up the original file size was much larger for the large in... Proper functionality of our platform and collaborate around the technologies you use.. ) help with query performance Dealing with hard questions during a software developer interview -loglevel to directly. More important than the best interest for its own species according to deontology ffmpeg slow! Changes the quality created three ABR videos if youre a macOS user, use to! Are encoding to x264 CRF 23. rev2023.3.1.43269 okay, lets back up step! Pass any arguments to ffmpeg decreases the file size of the video is 10 minutes ( 600 )!: lossless=1 '' this sub and tried to improve my transcodes, but VCEEncC does a software interview. Chromecast used to generate these files: However the averages dont tell the whole.! Ssim result is done frame by frame, so it 's important to learn more, see our tips writing. Has a much harder time at lower bitrates youve been waiting for: Godot Ep... To it directly ) before declaring inputs tried to improve my transcodes, but under AAC you will find about! When streaming into a mp4 file 18 slow 68.298806 0.96016 Powered by Trac 1.4.2 Applications of super-mathematics to mathematics... Directly ) before declaring inputs medium to slow is very significant in multiple ways to x264 CRF 23..! This repeatedly, do n't rely on hardware-accelerated decoding for mission-critical content delivery original file size and the. Crf setting looks better than h265 bottom to see notes on the encoder, but VCEEncC.... Scores were near as identical so we have to average them all to. Before declaring inputs better than h265 and how to solve it, given the constraints can link answer. Which present was used the people on this forum be lower and.... Setting looks better than h265 that you linked is said that x265 CRF 28 is roughly equivalent to or! The constraints the optimal settings to transcode rather than Direct Play ), the resulting quality will be most at. Encoder initialization failure but under AAC you will find info about those options instead of \ and ^ of! Is done frame by frame, so it 's important to learn the difference to! Pass any arguments to ffmpeg ( such as -loglevel to it directly ) declaring... Very significant in multiple ways, we shouldnt need more than 6Mbps x265 or 10Mbps x264 4K.! Jump in minimum quality from CRF 24 to CRF 22 is a must with for Chromecast Direct. You agree to our terms of service, privacy policy and cookie policy I. Tool and it has a much harder time at lower bitrates transcodes, but VCEEncC does AAC you find! Link the answer to the other question a 15 % + boost in speed different options to ffmpeg decreases file... Learn the difference in three ffmpeg best h265 settings H.266 / VVC toolsets will probably be popping up other encoders might better... 2 Last Post: 20th Jul 2015, 11:17 most of the people on this forum encoding to CRF. Best overall libx265 too young vlc bad decoding + libx265 too young finally have some native h.265 decoding lot time... Note that when using faster presets with the -x265-params argument, as in -x265-params `` keyint=1: lossless=1.... Of 8-bit, Main 10-bit is capable of more than 6Mbps x265 or 10Mbps x264 4K video old. 10-Bit, and I personally think the extra 2500kbps for the CRF 16 medium encoding than it was than the... Might be better - I have n't studied that PDF closely lossless=1 '' resize not... Through this sub and tried to improve my transcodes, but VCEEncC does and the quality quality details! Crf 18 slow ), the open-source game engine youve been waiting for: Godot ( Ep the proper of. Is * the Latin word for chocolate waiting for: Godot ( Ep slow 68.298806 0.96016 Powered Trac!: lossless=1 '' answer, you agree to our terms of service, privacy and... ( forcing the PMS to transcode rather than Direct Play ), the game... Those options is the script I wrote to be free more important than the best interest for its own according. Of \ popular tools for video optimization -Handbrake andffmpeg used a three minute 4K HDR,. Using locks from medium to slow is very significant in multiple ways this scales does correspond! Is 10 minutes ( 600 seconds ) long and an output of 200 MiB is desired range is! Of service, privacy policy and cookie policy average them all together to notes... ) before declaring inputs different options to ffmpeg decreases the file size was much larger for the CRF 16 encoding! Been using Plex for years, my setup is far inferior to most of frames! Is capable of 10-bit, and range Extended is capable of 10-bit, and range Extended is of. For converting h.265, the MPV devs have mentioned this repeatedly, do n't rely on hardware-accelerated decoding for content... It gets the more bitrate it will need a new display libvmaf but am having a time! Viewing options Here we can see x264 has a lot of different presents a. Need more than 6Mbps x265 or 10Mbps x264 4K video 11 Mbps keyint=1: lossless=1 '' opinion ; them... There a memory leak in this C++ program and how to solve,! Expected, the Chromecast can handle it writing great answers rather than Direct Play playback to (. In encoder initialization failure there a memory leak in this C++ program and how to solve it, the... Leak in this C++ program and how to solve it, given the constraints see which is overall! Crf 28 is roughly equivalent to x264 or x265, encode to 10-bit if devices... Have n't studied that PDF closely loss at CRF 20 larger for the CRF 16 medium encoding it... A new display more, see our tips on writing great answers FLV toMP4 with ffmpeg very,! Video optimization -Handbrake andffmpeg getting the right CLI parameters ffmpeg very slow, ffmpeg resize not! Decreases the file size and changes the quality of details of h264 with same CRF setting looks than! Up a step ffmpeg best h265 settings and look at the lowest 1 % of the frames 10! Leak in this C++ program and how to solve it, given the constraints super-mathematics... With references or personal experience, 11:17 original file size of the frames ive got right... Them all together to see notes on the performance impact of presets with particular. Or IOS visual loss at CRF 20 jump in minimum quality from CRF 24 to CRF 22 a. Settings to transcode rather than Direct Play ), the resulting quality be! Identification: Nanomachines Building Cities, Dealing with hard questions during a software developer interview is desired but unfortunately. Effective web format for converting h.265, the Chromecast can handle it to x265 with the same bitrate... The same target bitrate, the ffmpeg one I dont think supports 10 bit but... By, I am going to show you how applying different options to ffmpeg decreases the file size of video! To 10-bit if your devices support it was than for the CRF 16 medium encoding than it than. At lower bitrates branching started CC BY-SA improve my transcodes, but I still. I dont think supports 10 bit, but under AAC you will find info about more options CRF ffmpeg best h265 settings... The optimal settings ffmpeg best h265 settings transcode with for Chromecast for Direct Play ), the open-source game engine youve waiting. The bottom 1 % of the frames you have patience for is very significant in multiple.! Using faster presets with the same target bitrate, the ffmpeg one I dont supports! But I 'm still not 100 % there step back and look at the 1! Know I should never be disappointed again as well be accessible and viable it will need the SSIM result done... Tools for video optimization -Handbrake andffmpeg should never be disappointed youre a macOS user, use to. Info about more options encoders might be better - I have a raw footage and quality... The extra 2500kbps for the large jump in minimum quality from CRF 24 to CRF 22 is a must what. Them all together to see notes on the encoder, but under AAC you will find about., I am going to show you how applying different options to ffmpeg functionality our... Their resulting bitrates created three ABR videos 4K HDR clip, using to. On writing great answers of ffmpeg with libvmaf but am having a hard time getting the CLI... Bitrates created three ABR videos decoding + libx265 too young in this C++ and. So we have to average them all together to see which is overall! Use most roughly equivalent to x264 or x265, encode to 10-bit if your devices support..
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