ffmpeg-quality-metrics
NotEnoughAV1Encodes-Qt
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ffmpeg-quality-metrics | NotEnoughAV1Encodes-Qt | |
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17 | 9 | |
367 | 31 | |
- | - | |
5.0 | 2.6 | |
about 2 months ago | over 2 years ago | |
Python | Python | |
- | GNU General Public License v3.0 only |
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ffmpeg-quality-metrics
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VMAF is confusing me
Have you seen ffmpeg-quality-metrics? I went with the docker option. I figured that would keep it simple with ffmpeg versions/whatever.
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VMAF
I'm not good at computers, so I love ffmpeg-quality-metrics. I use the docker version because I didn't want to fight with dependencies.
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Encoding tv shows and movies
There are even tools that can compare the quality for us, like ffmpeg-quality-metrics can give a VMAF score as used by Netflix for the visual quality difference.
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Should I recompress video I shot with mobile?
You can at least test the quality difference between two encodes with something like ffmpeg-quality-metrics. If it has a high VMAF score and saved a bunch of space for something that doesn't need to be perfect, then I consider it fine.
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did I fail at preserving dvds? mpeg2 vs h264 vs av1
ffmpeg-quality-metrics is nice for comparing quality between copies. Better than squinting at pixels IMO.
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Movie or scene to test out different bitrates and resolutions
If you're re-encoding video then ffmpeg-quality-metrics is a great tool IMO. Can give you a scale from 0-100 of how similar it appears based on SSIM or VMAF. If I get a VMAF in the high 90's, like 95+, then I know the encode is decent and if it saved significant space (if that's the goal?) then it's a keeper.
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av1an crashing when using vmaf on Windows 10
It's working. I found this [model](https://github.com/slhck/ffmpeg-quality-metrics/blob/master/ffmpeg_quality_metrics/vmaf_models/vmaf_v0.6.1neg.json) with the help of u/Felixkruemel and I specified the vmaf path in av1an using `--vmaf-path=path to the/vmaf/model.json"`
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How to examine video quality?
Then, after the encode, if you want to compare original vs encoded quality there's ffmpeg-quality-metrics which makes it easy to get VMAF & SSIM scores between the two.
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If FLAC for audio = Remux for video, what's the video equivalent for 320kbps MP3 when it comes to 1080p Movies/TV shows?
ffmpeg-quality-metrics is a good tool to compare before & after encodes. It can easily calculate VMAF & SSIM scores. If I understand it correctly (I might not), then anything in the high 90s for VMAF is considered hard-pressed to be able to tell. Sometimes it hits 100, which makes me fairly confident about those encodes.
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High Bitrate
idk. When I did a re-encode with CRF 23 and preset 'veryslow' it went down to 2,236 kb/s. When I do a VMAF and SSIM test with ffmpeg-quality-metrics I was getting decent scores. It takes the file size down to 2.1GB. So my guess is they either set a significantly lower CRF or set a manual bitrate and aimed for the moon.
NotEnoughAV1Encodes-Qt
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did I fail at preserving dvds? mpeg2 vs h264 vs av1
I like using NotEnoughAV1Encodes. There's also Av1an, and ab-av1.
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Compression question
I wish AV1 had more compatibility. Just playing around with NotEnoughAV1Encodes took a dumb 10-second clip with almost no movement from 24MB from my DSLR to 1.1MB after the AV1 encode. It's a bad example for a video, but I was just randomly trying AV1 with things and was impressed with the ratio.
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Virtual Nas on ESXI or Something
If I'm not in a hurry for something to process then I set it to run on that. For instance, when I was looking at the AV1 codec I had it grinding NotEnoughAV1Encodes for days at a time.
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Quality loss when you encode
If you want to mess with AV1, then there's AV1an that has a feature to target a VMAF. ab-av1 has their 'crf-search.' Although, most of the time I just use NotEnoughAV1Encodes with settings I like. Although, granted AV1 has less compatibility and it takes forever.
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transcoding to optimize occupied pace
For some things, I've been going even slower using AV1 with NotEnoughAV1Encodes. Although, there's less compatibility for AV1, so keep that in mind.
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H264 -preset and -crf benchmarking results ( and why use should always use VERYFAST)
NotEnoughAV1Encodes is great for AV1, I'm not savvy enough to get AV1 to grind all my CPU cores without it.
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Variable Bitrate Formats are Cool
Do you do any videos? I've been playing with the AV1 codec using 'NotEnoughAV1Encodes'
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JPG is awesome!
Do you mess around with video at all? I just found out about the AV1 codec. Been using NotEnoughAV1Encodes to use all my computer cores to compress video. Then comparing the quality difference with ffmpeg-quality-metrics using VMAF. 33-second test video with my phone went down from 23MB to 1.6MB with nearly no quality difference. It takes forever to encode though. May not be compatible with all devices/browsers/etc. Then there's ab-av1 to help find the best settings.
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How to convert VIDEO_TS to AV1 in Matroska container with embedded subtitles and all audio tracks?
this program is pretty boss, https://github.com/Alkl58/NotEnoughAV1Encodes-Qt
What are some alternatives?
Av1an - Cross-platform command-line AV1 / VP9 / HEVC / H264 encoding framework with per scene quality encoding
ab-av1 - AV1 re-encoding using ffmpeg, svt-av1 & vmaf.
vmaf - Perceptual video quality assessment based on multi-method fusion.
video-to-ascii - It is a simple python package to play videos in the terminal using characters as pixels
NotEnoughAV1Encodes - GUI for AV1 (aomenc, rav1e & svt-av1)
Av1anStaxRipWrapper - Wrapper script to use Av1an with StaxRip
TikTokBot - A TikTokBot that downloads trending tiktok videos and compiles them using FFmpeg
erk - Ərk is an open source, cross-platform IRC client written in Python 3, Qt 5, and Twisted.
lossless-cut - The swiss army knife of lossless video/audio editing
FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!