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fix(e2ee): revert to PR #904 branch, add MAT-144 diagnostics

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PR #921 requires custom WebRTC build not yet available.
Added diagnostic logging: encryption_type per track, frame_cryptors count,
and DEC_FAILED re-keying cooldown (5s) to reduce log spam.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Christian Gick
2026-03-10 10:12:51 +02:00
parent f85562ed28
commit 4ae65524ac
2 changed files with 17 additions and 13 deletions
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@@ -1,8 +1,7 @@
# Stage 1: Build patched Rust FFI with native HKDF support for Element Call E2EE
# Fork: onestacked/livekit-rust-sdks branch EC-compat-changes-webrtc-change
# PR: https://github.com/livekit/rust-sdks/pull/921 (proper HKDF at WebRTC C++ level)
# Replaces #904 which used a callback hack that only worked for the first frame cryptor
# (audio), causing DEC_FAILED on video tracks (MAT-144).
# Stage 1: Build patched Rust FFI with HKDF support for Element Call E2EE
# Fork: onestacked/livekit-rust-sdks branch EC-compat-changes
# PR: https://github.com/livekit/rust-sdks/pull/904
# NOTE: PR #921 (native HKDF at C++ level) requires custom WebRTC build not yet available.
# Must use rust:latest (trixie/sid) — bookworm GCC 12 can't compile webrtc C++20 code
FROM rust:latest AS rust-build
RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -10,7 +9,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
libva-dev libglib2.0-dev nasm make clang \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /build
RUN git clone --branch EC-compat-changes-webrtc-change --depth 1 --recurse-submodules \
RUN git clone --branch EC-compat-changes --depth 1 --recurse-submodules \
https://github.com/onestacked/livekit-rust-sdks.git
WORKDIR /build/livekit-rust-sdks/livekit-ffi
RUN cargo build --release