10 Releases 12 Tags

RSS Feed

• v0.6.6 0588d92537

  Compare

  PeerSpeak 0.6.6 — screen shares catch back up Stable

  mollusk released this 2026-07-19 19:57:06 +00:00 | 0 commits to main since this release

  Screen shares that fall behind now catch back up.

  Fixed

  A screen share that falls behind now catches back up. On a lossy connection —
  satellite links being the worst case — a share could settle several seconds
  behind the host and simply stay there for the rest of the call. The viewer now
  notices a deep buffer and plays imperceptibly fast until it is back at the live
  edge; the audio stays in tune and in sync while it does.

  This replaces the --untimed approach from 0.6.5, which measurement showed did
  not help: it only removed pacing at presentation, while audio kept draining at
  1× the sound-card rate, so an accumulated backlog never shrank.

  Changed

  Low latency keeps a tighter viewer buffer. The screen-share cache setting is
  a size in megabytes, which at a given bitrate quietly decides how many seconds
  behind a viewer can drift — 2 MB turned out to hold about six seconds of a
  typical share. Low latency now caps that buffer at 1 MB regardless of the
  setting. Smooth still honors the value you choose, since a deep buffer is the
  point of that mode.

  How this was measured

  On a tc netem rig simulating a satellite link (40 ms ±20 ms jitter, 0.5% loss,
  a 250 ms/30%-loss handover burst every 15 s), against the same HTTP stream
  PixelPass actually serves:

  	standing buffer	recovery
  before	~6 s, permanent	none (media/wall 0.9988)
  buffer cap alone	~2.8 s	none
  cap + catch-up	~2.8 s	11.6% faster than realtime while behind

  That is roughly 9 s of backlog cleared in 80 s, where previously a viewer that
  fell behind stayed behind for the whole call.

  Not yet confirmed on a real two-machine call — that is the outstanding test.

  Compatibility

  No wire-protocol change (all planes unchanged), so 0.6.6 interoperates with
  0.6.x peers. Existing configs load unchanged.

  Install

  The AppImage needs a Vulkan-capable GPU driver and PipeWire. For screen sharing
  it also uses host GStreamer + mpv; on Arch/Artix:

  sudo pacman -S gstreamer gst-plugins-base gst-plugins-good gst-plugins-bad \
    gst-plugins-ugly gst-libav gst-plugin-pipewire mpv xorg-xwininfo libpulse
  

  The pixelpass screen-share helper is bundled inside the AppImage.

  Downloads

  • peerspeak-0.6.6-x86_64.AppImage
    24 MiB

    2026-07-19 20:03:36 +00:00
  • Source Code (ZIP)
  • Source Code (TAR.GZ)