m314dl v0.3.1

m314dl v0.3.1

Fast HLS (.m3u8) and DASH (.mpd) video downloader in a single static binary,
with native in-process CENC decryption — no mp4decrypt, no shaka-packager.

Fixes since v0.3.0

• Decrypted output is now a clean, unprotected stream. After CENC
  decryption the boxes still declared the stream encrypted (init typed its
  samples encv/enca with sinf/tenc/pssh; every fragment carried
  senc/saiz/saio), so a player or ffmpeg that trusted them tried to
  "decrypt" the already-plaintext samples and rendered a black picture. The
  init is now de-protected (codec fourcc restored from sinf→frma, sinf
  and pssh removed) and senc/saiz/saio are stripped from each fragment —
  correct for any mux target and for -no-mux.
• Flags work in any order relative to the URL — m314dl -o out.mp4 URL -t 16
  and m314dl URL -o out.mp4 now behave identically (flags after the URL were
  previously ignored).

Core features

• Native CENC / cbcs decryption, per-fragment as the stream downloads
  (byte-exact vs mp4decrypt). Supply the key with -key KID:KEY.
• HLS + DASH, VOD and live; AES-128; BBTS; multi-period DASH; subtitles
  (first subtitle flagged default, or -sub-external sidecars).
• Restream / live republish (-serve: hls/ts/dash), plus a
  multi-channel worker (-worker) and an RPC server (-rpc).
• Kill-proof resume: segments stream to part files with HTTP byte-range
  resume, checkpointed on every commit — an interrupted download continues
  byte-exact, losing at most the segment in flight.
• Fast on real networks: one HTTP/1.1 connection per in-flight request;
  adaptive concurrency, or a held -t N. Backs off from rate limits.
• Local file input, page scraping, cookies, proxy, custom headers, -ffmpeg.
  Needs ffmpeg on PATH (or -ffmpeg) for muxing.

Downloads

Platform	Archive
Linux x86-64	m314dl_v0.3.1_linux_amd64.tar.gz
Linux ARM64	m314dl_v0.3.1_linux_arm64.tar.gz
Linux ARMv7	m314dl_v0.3.1_linux_arm.tar.gz
macOS Intel	m314dl_v0.3.1_darwin_amd64.tar.gz
macOS Apple Silicon	m314dl_v0.3.1_darwin_arm64.tar.gz
Windows x86-64	m314dl_v0.3.1_windows_amd64.zip
Windows ARM64	m314dl_v0.3.1_windows_arm64.zip

Install (Linux/macOS)

tar xzf m314dl_v0.3.1_<os>_<arch>.tar.gz
sudo mv m314dl_v0.3.1_<os>_<arch>/m314dl /usr/local/bin/
m314dl -version

Verify downloads against SHA256SUMS.