ff-stream

HLS and DASH adaptive streaming output — no unsafe code required.

⚠️ Coming Soon — This crate is a placeholder and not yet implemented. The API is under design. Do not use in production.

Overview

ff-stream will provide HlsOutput, DashOutput, and AbrLadder types for producing adaptive bitrate streaming content from video files.

Design Principles

All public APIs are safe. Users never need to write unsafe code. Unsafe FFmpeg internals are fully encapsulated within the underlying ff-encode crate.

Planned Features

HLS output: Produce .m3u8 playlists and .ts segments via HlsOutput
DASH output: Produce .mpd manifests and segments via DashOutput
ABR ladder: Multi-rendition encoding in one pass via AbrLadder
Keyframe control: Configurable keyframe interval for clean segment boundaries

Planned Usage

use ff_stream::{HlsOutput, AbrLadder, Rendition};
use std::time::Duration;

// Single-quality HLS
HlsOutput::new("out/")
    .segment_duration(Duration::from_secs(6))
    .write()?;

// Multi-rendition ABR ladder
AbrLadder::new("input.mp4")
    .add_rendition(Rendition { width: 1920, height: 1080, bitrate: 6_000_000 })
    .add_rendition(Rendition { width: 1280, height: 720,  bitrate: 3_000_000 })
    .hls("out/")?;

Minimum Supported Rust Version

Rust 1.93.0 or later (edition 2024).

Related Crates

ff-encode — Video/audio encoding (used internally)
ff-pipeline — Unified decode-filter-encode pipeline
ff — Facade crate (re-exports all)

License

MIT OR Apache-2.0

ff-stream 0.1.3