On the Android and iOS platforms, occasionally crash when using the SimulcastEncoderAdapter.
The Android platform reverted,
In function `SimulcastEncoderAdapter::EncoderContext::Release`,
After executing `encoder_->RegisterEncodeCompleteCallback(nullptr)`
before execute `encoder_->Release()`
If the encoder thread is executed here,
```
// out/xxx/xxx/gen/sdk/android/generated_video_jni/VideoEncoderWrapper_jni.h
JNI_GENERATOR_EXPORT void Java_org_webrtc_VideoEncoderWrapper_nativeOnEncodedFrame(
JNIEnv* env,
jclass jcaller,
jlong nativeVideoEncoderWrapper,
jobject frame) {
VideoEncoderWrapper* native = reinterpret_cast<VideoEncoderWrapper*>(nativeVideoEncoderWrapper);
CHECK_NATIVE_PTR(env, jcaller, native, "OnEncodedFrame");
return native->OnEncodedFrame(env, base::android::JavaParamRef<jobject>(env, frame)); // HERE
}
```
it will cause `native` to nullptr.
iOS also.
Bug: webrtc:13156
Change-Id: Id5563b3fa2c11606ae7b35de56bbaa6adba59b14
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231780
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34989}
dc8fc72204