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FR-AI / ANALYSISWhy it is worth attention
It is a lightweight, dependency-free tool that supports multiple encryption schemes (CENC, AES-128, cbcs) and advanced codecs (HEVC, Dolby Vision, HDR10), while optimizing output for CDN caching by disguising TS segments as JPEG.
Who it is for
- Streaming engineers who need to remux encrypted DASH/HLS to clear HLS-TS
- DevOps/SRE teams managing CDN caching rules for live streams
- Developers integrating dynamic key retrieval with live transcapsulation
- System integrators building custom video pipelines without heavy multimedia tools
Use cases
- Converting DRM-protected DASH or HLS live streams to unencrypted HLS-TS for redistribution
- Serving adaptive bitrate HLS outputs that are CDN-friendly (segments disguised as .jpeg)
- Real-time subtitle passthrough from MPD/M3U8 to WebVTT in an HLS master playlist
- On-demand transcapsulation tasks that automatically pause when idle, saving resources
Strengths
- Zero external runtime dependencies (no ffmpeg, mp4decrypt) – single binary deployment
- Comprehensive encryption support: DASH CENC AES-CTR, HLS AES-128, HLS fMP4 SAMPLE-AES/cbcs
- Preserves advanced video features: HEVC, Dolby Vision RPU, HDR metadata, AAC/AC-3/EC-3 audio
- Built-in Web UI and REST API for task management, and configurable dynamic key API with retry mechanism
Considerations
- All segments are stored in memory; a service restart invalidates all tasks and buffered content
- Output is limited to HLS-TS (no DASH output), and browser support for HEVC/Dolby Vision is limited
- Dynamic key mode requires a stable key endpoint – failed retrievals block task publication
README quick start
DV-HLS Gateway
DV-HLS Gateway 是一个纯净的手动推流器，用于把 DASH(MPD) 或 HLS(M3U8) 输入实时转封装为明文 HLS-TS 输出。
它不依赖 ffmpeg / mp4decrypt，运行时只做解密、MP4 解析、TS 封装和直播窗口发布；HEVC、Dolby Vision RPU、HDR 元数据、AAC / AC-3 / EC-3 音频都会尽量原样透传。
功能
- 支持 MPD 和 M3U8 输入，统一输出 HLS-TS。
- 支持 VOD 和 Live，Live 会贴近 live edge、滚动发布并做内存 GC。
- 支持 HEVC、H.264、Dolby Vision Profile 5/8、HDR10、HLG、SDR。
- 支持 AAC-LC、AC-3、EC-3，前端可显示语言、codec 和码率。
- 支持 DASH CENC AES-CTR、HLS AES-128、HLS fMP4 SAMPLE-AES / cbcs。
- 支持固定 key 和动态取 key。
- 支持字幕推流，开启字幕时输出 master playlist + media playlist + subtitle playlist。
- 支持持续转化和按需启停，按需任务默认 5 分钟无播放请求后暂停。
- 分片只缓存在内存中，不写磁盘。
- 输出 TS 分片伪装为
.jpeg且响应Content-Type: image/jpeg，便于 CDN 缓存。
目录
src/：主程序源码。src/frontend/index.html：内置 Web UI。examples/：辅助示例。examples/key_api.php：动态取 key 接口 PHP 示例。dv-hls-gateway.example.json：运行配置示例。.github/workflows/ci.yml：CI，运行格式检查和测试。.github/workflows/release.yml：多平台二进制构建。
构建
本地构建
cargo build --release
运行：
./target/release/dv-hls-gateway
默认读取二进制同目录的 dv-hls-gateway.json。如果文件不存在，程序首次启动会自动生成一个模板。
也可以显式指定配置文件和端口：
./target/release/dv-hls-gateway --config ./dv-hls-gateway.json --host 0.0.0.0 --port 37201
GitHub Actions 构建
仓库内置 Build Release Binaries workflow，可手动运行，也可推送 v* tag 自动构建并发布附件。
手动运行：
- 打开 GitHub Actions。
- 选择
Build Release Binaries。 - 点击
Run workflow。 - 填入
release_tag，例如v0.1.0。
手动运行会创建或更新对应 tag 的 Release。推送 tag 也会自动发布：
固定产物名：
| 产物 | 运行平台 | Rust target |
|---|---|---|
dv-hls-gateway-linux-amd64-musl | Linux x86_64 | x86_64-unknown-linux-musl |
dv-hls-gateway-linux-armv7-musl | Linux ARMv7 hard-float | armv7-unknown-linux-musleabihf |
dv-hls-gateway-linux-arm64-musl | Linux ARM64 | aarch64-unknown-linux-musl |
dv-hls-gateway-windows-amd64-musl.exe | Windows x86_64 | x86_64-pc-windows-msvc |
dv-hls-gateway-macos-amd64-musl | macOS Intel | x86_64-apple-darwin |
dv-hls-gateway-macos-arm64-musl | macOS Apple Silicon | aarch64-apple-darwin |
说明：musl 是 Linux 目标使用的 libc；Windows/macOS 没有 musl ABI，项目仍按固定产物名输出，实际 target 以表格为准。
命令行打 tag 触发构建：
git tag v0.1.0
git push origin v0.1.0
下载后运行：
chmod +x ./dv-hls-gateway-linux-amd64-musl
./dv-hls-gateway-linux-amd64-musl --config ./dv-hls-gateway.json --host 0.0.0.0 --port 37201
Windows：
.\dv-hls-gateway-windows-amd64-musl.exe --confi
Description
Live stream gateway
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