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feat(calls): add Android LAN peer calls using Podcast capture

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Share the LibVLC SRTP engine with Linux and feed Android MediaRecorder output through its native pipe without transcoding or HLS files. Reuse front-camera capture, preview, remote rendering and foreground service with consent-based controls and background cleanup.

Use separate RTP/RTCP ports to avoid the diagnosed Android VLC SDP crash. Add physical-device media checks and lifecycle regressions; document LAN/VPN scope and remaining separate-device validation.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Paul Schneider 2026-10-26 04:15:19 +00:00
commit a676ef3575
Signed by: notazof
GPG key ID: AD4B9B545FBD7D12
19 changed files with 718 additions and 105 deletions
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CHANGELOG.md
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@ -5,6 +5,7 @@
### Added
* [PostIt.Android/Desktop] Extend LAN/VPN SRTP calls to Android 8+ using the existing front-camera/microphone Podcast capture, rotated native preview and embedded LibVLC remote video, without libwebrtc or new dependencies. Pass the live MediaRecorder pipe directly to the shared SRTP engine without HLS files or transcoding; add a call-specific foreground notification, stop on backgrounding, and allow incoming callers to configure devices before acceptance. Use separate RTP/RTCP UDP ports to avoid a diagnosed Android VLC `rtcp-mux` SDP-generation crash. Add debug-only physical camera/SRTP checks and shared control/pipe-input regressions; Internet/TURN/group calls remain outside this transport.
* [PostIt.Desktop/API] Add opt-in Linux LAN/VPN peer calls through the existing ChatHub, reusing Podcast LibVLC camera/microphone capture and H.264/AAC encoding with direct SRTP instead of HLS. Add consent, embedded local/remote video, hangup/interruption cleanup, private IPv4 validation and per-direction ephemeral keys over HTTPS-only signaling. Reject IP-masking accounts rather than silently bypassing TURN; keep this transport disabled by default and separate from the future Internet/group-call design. Test real bidirectional encrypted audio/video, wrong-key rejection, preview output, signaling and UI lifecycle; physical camera/two-machine rendering remains to validate.
* [PostIt/API] Begin Android/Linux call integration on the existing authenticated ChatHub: typed invitation, single-device consent, bounded SDP/ICE exchange and hangup; derive relay policy from account preferences and issue temporary coturn credentials. Attach the shared PostIt signaling client to the chat connection, end calls on disconnect/room departure/privacy activation, and add targeted regression tests. Calls remain disabled by default; native media adapters and Android/Linux end-to-end validation are not implemented yet.
* [PostIt] Clarify reuse of the existing ChatHub for call signaling and document the inconclusive Android native WebRTC experiment; discard the isolated laboratory without changing production chat or media behavior.