From c753223ad6b90550fae31aedd79fbedc13da2e75 Mon Sep 17 00:00:00 2001
From: Paul Elder <paul.elder@ideasonboard.com>
Date: Wed, 23 Sep 2020 19:05:41 +0900
Subject: libcamera, android, cam, gstreamer, qcam, v4l2: Reuse Request
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Allow reuse of the Request object by implementing reuse(). This means
the applications now have the responsibility of freeing the Request
objects, so make all libcamera users (cam, qcam, v4l2-compat, gstreamer,
android) do so.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
---
 include/libcamera/request.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'include/libcamera/request.h')

diff --git a/include/libcamera/request.h b/include/libcamera/request.h
index 5976ac50..655b1324 100644
--- a/include/libcamera/request.h
+++ b/include/libcamera/request.h
@@ -31,6 +31,11 @@ public:
 		RequestCancelled,
 	};
 
+	enum ReuseFlag {
+		Default = 0,
+		ReuseBuffers = (1 << 0),
+	};
+
 	using BufferMap = std::map<const Stream *, FrameBuffer *>;
 
 	Request(Camera *camera, uint64_t cookie = 0);
@@ -38,6 +43,8 @@ public:
 	Request &operator=(const Request &) = delete;
 	~Request();
 
+	void reuse(ReuseFlag flags = Default);
+
 	ControlList &controls() { return *controls_; }
 	ControlList &metadata() { return *metadata_; }
 	const BufferMap &buffers() const { return bufferMap_; }
-- 
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