Add sideband streams to BufferQueue and related classes
Sideband streams are essentially a device-specific buffer queue that
bypasses the BufferQueue system. They can be used for situations with
hard real-time requirements like high-quality TV and video playback
with A/V sync. A handle to the stream is provided by the source HAL,
and attached to a BufferQueue. The sink HAL can read buffers via the
stream handle rather than acquiring individual buffers from the
BufferQueue.
Change-Id: Ib3f262eddfc520f4bbe3d9b91753ed7dd09d3a9b
diff --git a/libs/gui/BufferQueueProducer.cpp b/libs/gui/BufferQueueProducer.cpp
index 0e9de88..0ff7b80 100644
--- a/libs/gui/BufferQueueProducer.cpp
+++ b/libs/gui/BufferQueueProducer.cpp
@@ -674,6 +674,7 @@
}
mCore->mConnectedProducerToken = NULL;
mCore->mConnectedApi = BufferQueueCore::NO_CONNECTED_API;
+ mCore->mSidebandStream.clear();
mCore->mDequeueCondition.broadcast();
listener = mCore->mConsumerListener;
} else {
@@ -697,6 +698,12 @@
return status;
}
+status_t BufferQueueProducer::setSidebandStream(const sp<NativeHandle>& stream) {
+ Mutex::Autolock _l(mCore->mMutex);
+ mCore->mSidebandStream = stream;
+ return NO_ERROR;
+}
+
void BufferQueueProducer::binderDied(const wp<android::IBinder>& /* who */) {
// If we're here, it means that a producer we were connected to died.
// We're guaranteed that we are still connected to it because we remove