cam: Add helper class to parse stream configuration

Create a new helper class StreamKeyValueParser to parse command line
options describing stream configurations. The goal is to share this new
class between cam and qcam.

Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/cam/stream_options.h b/src/cam/stream_options.h
new file mode 100644
index 00000000..577391f0
--- /dev/null
+++ b/src/cam/stream_options.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2020, Raspberry Pi (Trading) Ltd.
+ *
+ * stream_options.h - Helper to parse options for streams
+ */
+#ifndef __CAM_STREAM_OPTIONS_H__
+#define __CAM_STREAM_OPTIONS_H__
+
+#include <libcamera/camera.h>
+
+#include "options.h"
+
+using namespace libcamera;
+
+class StreamKeyValueParser : public KeyValueParser
+{
+public:
+	StreamKeyValueParser();
+
+	KeyValueParser::Options parse(const char *arguments) override;
+
+	static StreamRoles roles(const OptionValue &values);
+	static int updateConfiguration(CameraConfiguration *config,
+				       const OptionValue &values);
+
+private:
+	static bool parseRole(StreamRole *role,
+			      const KeyValueParser::Options &options);
+};
+
+#endif /* __CAM_STREAM_OPTIONS_H__ */