[PATCH v3 10/17] libcamera: stream: Add operator<<(StreamConfiguration)

[Stefan Klug]

From: Jacopo Mondi <jacopo.mondi at ideasonboard.com>

The StreamConfiguration class only implmenets toString() but doesn't
offer an overload of operator<<() which is convenient to use.

Add an overload for operator<<(StreamConfiguration) which is based on
the usage of StreamConfiguration::toString().

Signed-off-by: Jacopo Mondi <jacopo.mondi at ideasonboard.com>
---
 include/libcamera/stream.h |  2 ++
 src/libcamera/stream.cpp   | 13 +++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/libcamera/stream.h b/include/libcamera/stream.h
index 071b71698acb..ea228aea7d56 100644
--- a/include/libcamera/stream.h
+++ b/include/libcamera/stream.h
@@ -61,6 +61,8 @@ private:
 	StreamFormats formats_;
 };
 
+std::ostream &operator<<(std::ostream &out, StreamConfiguration cfg);
+
 enum class StreamRole {
 	Raw,
 	StillCapture,
diff --git a/src/libcamera/stream.cpp b/src/libcamera/stream.cpp
index 1f75dbbc5b64..a093abf48c7c 100644
--- a/src/libcamera/stream.cpp
+++ b/src/libcamera/stream.cpp
@@ -395,6 +395,19 @@ std::string StreamConfiguration::toString() const
 	return size.toString() + "-" + pixelFormat.toString();
 }
 
+/**
+ * \brief Insert a text representation of a StreamConfiguration into an output
+ * stream
+ * \param[in] out The output stream
+ * \param[in] cfg The StreamConfiguration
+ * \return The output stream \a out
+ */
+std::ostream &operator<<(std::ostream &out, StreamConfiguration cfg)
+{
+	out << cfg.toString();
+	return out;
+}
+
 /**
  * \enum StreamRole
  * \brief Identify the role a stream is intended to play
-- 
2.43.0