ffmpeg-normalize VS FFmpeg

Have you considered using ffmpeg-normalize? I use it regularly to normalize the loudness of both mp4's and mp3's and I find it very easy to use.

You can manually adjust using ffmpeg. measure volume with ebur128 filter then change it with volume filter. There is script for it https://github.com/slhck/ffmpeg-normalize but manual work is easy to do.

Have you got any scripts to share? I came across this project a couple months ago: https://github.com/slhck/ffmpeg-normalize

To normalize the audio levels so that they don't get too loud or too soft. Though I wouldn't use it if you have less than 64 kbit/second/track.

https://github.com/slhck/ffmpeg-normalize

Normalize Volume

I'm trying to setup [ffmpeg-normalize](https://github.com/slhck/ffmpeg-normalize), and I'm actually having problems specifically with properly mastered media with quite and loud bits. loudnorm doesn't accept an lra of over 20, but some tracks have got a higher lra than that - Pink Floyd's Dark Side of the Moon is an excellent example of that, the first track fades in from silence and is supposed to be a seamless transition into the second track. But with an lra of over 20, it goes into dynamic mode, and there is then a noticable step in loudness when the track changes.

GPL2

Since FFmpeg is GPL2, doesn’t that require CompressX to disclose its source code?

IANAL, apologies if I miss understand license requirements.

https://github.com/FFmpeg/FFmpeg?tab=License-1-ov-file

This turns out to be a lot of assembly macros to help write one x86 assembly. https://github.com/FFmpeg/FFmpeg/blob/master/libavutil/x86/x...

The sibling comment recommending compiler intrinsics is probably the best way to go for writing SIMD code. A mixture of `` style types and intrinsics to specify instructions is a solid 90% solution compared to assembly.

If you want that last 10%, I think macros are putting the emphasis in the wrong place. They're a somewhat easy way to build up a language abstraction which will work if held carefully, but I'm confident the dev experience using this abstraction when you write invalid code will be deeply confusing.

I would suggest to write a parser instead of the macros. That'll tell you clearly when the syntax is invalid (though possibly not with much precision) and it'll give you a place to put semantic analysis for where valid syntax encodes nonsense. Do the equivalent of the macro expansions on the parsed tree instead of on the text. Emit asm as the "back end".

You might have heard of FFMPEG or ImageMagick for image and video edition in a programmatic way. MoviePy is a Python module for video editing (Python wrapper for FFMPEG and ImageMagick). It provides functions for cutting, concatenations, title insertions, video compositing, video processing, and the creation of custom effects. It can read and write common video and audio formats and be run on any platform with Python 2.7 or 3+.

There are many cloud-based tools and websites that can convert your images, but the problem with these tools is that you usually have to upload the files for them to be processed, and some of their services are not free. In this article, I'd like to introduce a piece of software called FFmpeg, which allows you convert the images locally with one simple command.

To run the demo locally, be sure to have Python 3.11 and FFmpeg installed.