Unhandled Exception: System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt

Question

Unhandled Exception: System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt

Anand Shende 1

Hi,

I am intermittently getting the following error while running the recording bot (https://github.com/microsoftgraph/microsoft-graph-comms-samples/tree/master/Samples/V1.0Samples/AksSamples/teams-recording-bot).

Unhandled Exception: System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. at Microsoft.Skype.Bots.Media.AudioFramePlayer.CopyMemory(IntPtr dest, IntPtr src, UInt32 count) at Microsoft.Skype.Bots.Media.AudioFramePlayer.<CopyAndSendData>d__46.MoveNext() at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.StartTStateMachine at Microsoft.Skype.Bots.Media.AudioFramePlayer.CopyAndSendData(AudioMediaBuffer sourceBuffer, MediaBuffer destinationBuffer) at Microsoft.Skype.Bots.Media.AudioFramePlayer.<DequeueAndProcessAsync>d__47.MoveNext() at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.Run() at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<>c__DisplayClass4_0.<OutputAsyncCausalityEvents>b__0() at System.Runtime.CompilerServices.TaskAwaiter.<>c__DisplayClass11_0.<OutputWaitEtwEvents>b__0() at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(Action action, Boolean allowInlining, Task& currentTask) at System.Threading.Tasks.Task.FinishContinuations() at System.Threading.Tasks.Task.Finish(Boolean bUserDelegateExecuted) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot) at System.Threading.Tasks.Task.ExecuteEntry(Boolean bPreventDoubleExecution) at System.Threading.ThreadPoolWorkQueue.Dispatch()

Can you help me resolve this?

Anonymous

2021-09-24T11:33:03.563+00:00

We are setting it up locally. We will let you know.
Anand Shende 1 Reputation point

2021-09-24T11:40:30.41+00:00

Just to add bit more details - I have published a video from the recording bot and after every 30 seconds I publish some audio as well...
So this issue often (not everytime) occurs when audio is published and the AudioFramePlayer is running low on video frames.
Anonymous

2021-11-09T09:39:28.793+00:00

@Anand Shende - This issue has been raised on Github. Please track this thread for future updates. Also could you please help by sharing minimal code snipped of video capture functionality to repro the issue.
Anonymous

2021-11-12T15:29:50.887+00:00

@Anand Shende - Could you please help by sharing minimal code snippet of video capture functionality to repro the issue?
Anonymous

2021-11-16T14:32:07.233+00:00

@Anand Shende - Could you please help by sharing minimal code snippet of video capture functionality to repro the issue?