ffmpeg-quality-metrics
video-to-ascii
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ffmpeg-quality-metrics | video-to-ascii | |
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17 | 6 | |
367 | 1,621 | |
- | - | |
5.0 | 4.0 | |
about 2 months ago | 5 months ago | |
Python | Python | |
- | MIT License |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
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.
video-to-ascii
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Ask HN: How to come up with a useful, coding hobby project?
pal to ascii : https://github.com/joelibaceta/video-to-ascii
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[0] : https://en.wikipedia.org/wiki/Philo_Farnsworth
[1] : punch card : https://www.youtube.com/watch?v=Oke-7lsvFug
original pearl programming : https://www.youtube.com/watch?v=gALLuttm8tI
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video-to-ascii VS ascvid - a user suggested alternative
2 projects | 8 Apr 2023
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How was this effect of code replacing the headshots done?
you could use one of the many video-to-ascii command line tools to render out a video you made first. then you can overlay that into your actual video. It doesnt look like thats what they did but i think it could look even better than this if executed right
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Rickroll in your Terminal over SSH/Telnet
This was a fun little hack I wrote in NodeJS. I used the video-to-ascii project to output the Rickroll MP4 as a series of ASCII characters (it actually outputs a nice bash script). Then I wrote a small TCP server (for telnet) in NodeJS to simply pipe the output of the video bash script right to your telnet client! To add SSH support, I used the Node ssh2 library to create a simple SSH Server that is just piped to the telnet server (basically a proxy).
- Windows is nice and all, but can it do this? (1)
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VLC
https://github.com/joelibaceta/video-to-ascii time to create rickroll.sh
What are some alternatives?
Av1an - Cross-platform command-line AV1 / VP9 / HEVC / H264 encoding framework with per scene quality encoding
pyright-python - Python command line wrapper for pyright, a static type checker
vmaf - Perceptual video quality assessment based on multi-method fusion.
art - 🎨 ASCII art library for Python
ab-av1 - AV1 re-encoding using ffmpeg, svt-av1 & vmaf.
python_cli_video_editor - A CLI video editor written in the Python Language.
TikTokBot - A TikTokBot that downloads trending tiktok videos and compiles them using FFmpeg
ffmpeg-normalize - Audio Normalization for Python/ffmpeg
NotEnoughAV1Encodes-Qt - Linux GUI for AV1 Encoders
pipupgrade - 🗽 Like yarn outdated/upgrade, but for pip. Upgrade all your pip packages and automate your Python Dependency Management.
lossless-cut - The swiss army knife of lossless video/audio editing
clippy - Create animated ASCII-art for the command line almost instantly!