gpac
mp4rs
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gpac | mp4rs | |
---|---|---|
7 | 1 | |
2,560 | 40 | |
2.1% | - | |
9.8 | 6.7 | |
2 days ago | about 3 years ago | |
C | Rust | |
GNU Lesser General Public License v3.0 only | MIT License |
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gpac
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static builds of mp4box
I know this isn't actually ffmpeg, but I think of mp4box as being ffmpeg-adjacent so I thought I'd ask here. Does anyone know if there are reliable static builds of just mp4box online anywhere? All I seem to be able to find on GPAC's site is either a big ol dynamically linked install, or instructions on how to build the mp4box-only binary locally yourself https://github.com/gpac/gpac/wiki/Build-Introduction
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I have quite a few movies that fail to transcode due to unknown audio tracks. Any way to fix that?
If they're MKVs, MKVToolNix's header editor makes it easy to change the language tag of an audio track. For MP4 you could either remux them to an MKV (also using MKVToolNix) and change the language tag in the process, or use a command-line tool like MP4Box to change the language while keeping the MP4 container without reencoding.
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Defining Audio Tracks
At least for MKVs, you can use MKVToolNix's header editor to add a name to the audio tracks, which most Plex clients will pick up on (e.g. in the web app: https://i.imgur.com/awhU0Z6.png). For MP4 containers, I think MP4Box can do this (one of their examples is "replace the label on an audio or subtitle track"). Other containers probably have their own methods, but I'd probably just throw them into MKVToolNix to move the streams to an MKV and edit the audio track names at the same time.
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Determining new bitrate when lossy converting from 256K M4A to Opus
Just an example: https://github.com/gpac/gpac/wiki/MP4Box
- How can I convert mp3 to a m4a without quality loss?
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A Quick Dive Into MP4
MP4Box
- AAC and M4A
mp4rs
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A Quick Dive Into MP4
I also have a more advanced MP4 reader and writer in Rust: https://github.com/alfg/mp4rs
What are some alternatives?
FFmpeg - Mirror of https://git.ffmpeg.org/ffmpeg.git
mp4-rust - MP4 reader + writer library in Rust! 🎥🦀
Bento4 - Full-featured MP4 format, MPEG DASH, HLS, CMAF SDK and tools
MediaInfo - Convenient unified display of the most relevant technical and tag data for video and audio files.
nginx-vod-module - NGINX-based MP4 Repackager
sitewriter - A rust library to generate sitemaps.
Ant-Media-Server - Ant Media Server is a live streaming engine software that provides adaptive, ultra low latency streaming by using WebRTC technology with ~0.5 seconds latency. Ant Media Server is auto-scalable and it can run on-premise or on-cloud.
mp4 - :movie_camera: Basic MP4 reader in Go! CLI + Golang Package for ISO/IEC 14496-12 - ISO Base Media File Format
hlsdl - C program to download VoD HLS (.m3u8) files
img-parts - Low level crate for reading and writing Jpeg, Png and RIFF image containers
vtkio - Visualization ToolKit (VTK) file parser and writer