camera2: Add support for secondary surface for stream
- Enhance OutputConfiguration to contain multiple surfaces for one
underlying stream.
- Create Camera3SharedOutputStream to handle streams with multiple
surfaces.
- Create Camera3StreamSplitter to handle buffer flows between camera and
multiple consumers.
Test: cts, and manually test camera preview/snapshot/recording
Bug: 33777818
Change-Id: Ia010c3cc9d9b4bd5b9ea03cc42fe4e0a0d8033f1
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index 2226dd2..047ccf2 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -180,6 +180,34 @@
status_t getRotationTransformLocked(/*out*/int32_t* transform);
private:
+ // StreamSurfaceId encapsulates streamId + surfaceId for a particular surface.
+ // streamId specifies the index of the stream the surface belongs to, and the
+ // surfaceId specifies the index of the surface within the stream. (one stream
+ // could contain multiple surfaces.)
+ class StreamSurfaceId final {
+ public:
+ StreamSurfaceId() {
+ mStreamId = -1;
+ mSurfaceId = -1;
+ }
+ StreamSurfaceId(int32_t streamId, int32_t surfaceId) {
+ mStreamId = streamId;
+ mSurfaceId = surfaceId;
+ }
+ int32_t streamId() const {
+ return mStreamId;
+ }
+ int32_t surfaceId() const {
+ return mSurfaceId;
+ }
+
+ private:
+ int32_t mStreamId;
+ int32_t mSurfaceId;
+
+ }; // class StreamSurfaceId
+
+private:
/** ICameraDeviceUser interface-related private members */
/** Preview callback related members */
@@ -216,8 +244,8 @@
//check if format is not custom format
static bool isPublicFormat(int32_t format);
- // IGraphicsBufferProducer binder -> Stream ID for output streams
- KeyedVector<sp<IBinder>, int> mStreamMap;
+ // IGraphicsBufferProducer binder -> Stream ID + Surface ID for output streams
+ KeyedVector<sp<IBinder>, StreamSurfaceId> mStreamMap;
struct InputStreamConfiguration {
bool configured;
@@ -238,6 +266,9 @@
// as there are no surfaces available and can not be put into mStreamMap. Once the deferred
// Surface is configured, the stream id will be moved to mStreamMap.
Vector<int32_t> mDeferredStreams;
+
+ static const int32_t MAX_SURFACES_PER_STREAM = 2;
+ static const int32_t MAX_DEFERRED_SURFACES = 1;
};
}; // namespace android