1787712 - Crash in [@ mozilla::WebrtcVideoConduit::CreateSendStream]

Status: RESOLVED DUPLICATE of bug 1683934

(Core :: WebRTC, defect)

Description

[Gabriele Svelto [:gsvelto] (PTO)]

Crash report: https://crash-stats.mozilla.org/report/index/f7b9d8f4-b3a0-4e58-b0f3-51ff50220824

MOZ_CRASH Reason: MOZ_DIAGNOSTIC_ASSERT(mSendStreamConfig.rtp.ssrcs.size() == mEncoderConfig.number_of_streams) (Each video substream must have a corresponding ssrc.)

Top 10 frames of crashing thread:

0 XUL mozilla::WebrtcVideoConduit::CreateSendStream dom/media/webrtc/libwebrtcglue/VideoConduit.cpp:930
1 XUL mozilla::WebrtcVideoConduit::OnControlConfigChange dom/media/webrtc/libwebrtcglue/VideoConduit.cpp:862
2 XUL mozilla::detail::RunnableFunction<mozilla::WatchManager<mozilla::WebrtcVideoConduit>::PerCallbackWatcher::Notify xpcom/threads/nsThreadUtils.h:531
3 XUL mozilla::SimpleTaskQueue::DrainTasks xpcom/threads/TaskDispatcher.h:44
4 XUL {virtual override thunk} 
5 XUL mozilla::AutoTaskDispatcher::TaskGroupRunnable::Run xpcom/threads/TaskDispatcher.h:226
6 XUL mozilla::detail::RunnableFunction<mozilla::TaskQueueWrapper< xpcom/threads/nsThreadUtils.h:531
7 XUL mozilla::TaskQueue::Runner::Run xpcom/threads/TaskQueue.cpp:259
8 XUL nsThreadPool::Run xpcom/threads/nsThreadPool.cpp:310
9 XUL nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1199

We're hitting a diagnostic assertion, so the volume is low but the condition might be more common on release and late beta.