1 files changed, 62 insertions, 0 deletions
diff --git a/src/libcamera/pipeline/ipu3/frames.h b/src/libcamera/pipeline/ipu3/frames.h
new file mode 100644
index 00000000..106e5c15
--- /dev/null
+++ b/src/libcamera/pipeline/ipu3/frames.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2020, Google Inc.
+ *
+ * frames.h - Intel IPU3 Frames helper
+ */
+#ifndef __LIBCAMERA_PIPELINE_IPU3_FRAMES_H__
+#define __LIBCAMERA_PIPELINE_IPU3_FRAMES_H__
+
+#include <map>
+#include <memory>
+#include <queue>
+#include <vector>
+
+namespace libcamera {
+
+class FrameBuffer;
+class IPAProxy;
+class PipelineHandler;
+class Request;
+class V4L2VideoDevice;
+struct IPABuffer;
+
+class IPU3Frames
+{
+public:
+	struct Info {
+		unsigned int id;
+		Request *request;
+
+		FrameBuffer *rawBuffer;
+		FrameBuffer *paramBuffer;
+		FrameBuffer *statBuffer;
+
+		bool paramDequeued;
+		bool metadataProcessed;
+	};
+
+	IPU3Frames();
+
+	void init(const std::vector<std::unique_ptr<FrameBuffer>> &paramBuffers,
+		  const std::vector<std::unique_ptr<FrameBuffer>> &statBuffers);
+	void clear();
+
+	Info *create(Request *request);
+	void remove(Info *info);
+	bool tryComplete(Info *info);
+
+	Info *find(unsigned int id);
+	Info *find(FrameBuffer *buffer);
+
+private:
+	std::queue<FrameBuffer *> availableParamBuffers_;
+	std::queue<FrameBuffer *> availableStatBuffers_;
+
+	unsigned int nextId_;
+	std::map<unsigned int, std::unique_ptr<Info>> frameInfo_;
+};
+
+} /* namespace libcamera */
+
+#endif /* __LIBCAMERA_PIPELINE_IPU3_FRAMES_H__ */