5 files changed, 42 insertions, 6 deletions

diff --git a/include/libcamera/stream.h b/include/libcamera/stream.h
index f595a630..bc14fb60 100644
--- a/include/libcamera/stream.h
+++ b/include/libcamera/stream.h
@@ -71,11 +71,15 @@ public:
 	std::unique_ptr<Buffer> createBuffer(unsigned int index);
 
 	BufferPool &bufferPool() { return bufferPool_; }
+	std::vector<BufferMemory> &buffers() { return bufferPool_.buffers(); }
 	const StreamConfiguration &configuration() const { return configuration_; }
 
 protected:
 	friend class Camera;
 
+	void createBuffers(unsigned int count);
+	void destroyBuffers();
+
 	BufferPool bufferPool_;
 	StreamConfiguration configuration_;
 };
diff --git a/src/cam/capture.cpp b/src/cam/capture.cpp
index 66ec1aba..5ffa4ae2 100644
--- a/src/cam/capture.cpp
+++ b/src/cam/capture.cpp
@@ -154,7 +154,7 @@ void Capture::requestComplete(Request *request, const std::map<Stream *, Buffer
 	for (auto it = buffers.begin(); it != buffers.end(); ++it) {
 		Stream *stream = it->first;
 		Buffer *buffer = it->second;
-		BufferMemory *mem = &stream->bufferPool().buffers()[buffer->index()];
+		BufferMemory *mem = &stream->buffers()[buffer->index()];
 		const std::string &name = streamName_[stream];
 
 		info << " " << name
diff --git a/src/libcamera/camera.cpp b/src/libcamera/camera.cpp
index 1f307654..61d3e821 100644
--- a/src/libcamera/camera.cpp
+++ b/src/libcamera/camera.cpp
@@ -683,7 +683,7 @@ int Camera::configure(CameraConfiguration *config)
 		 * Allocate buffer objects in the pool.
 		 * Memory will be allocated and assigned later.
 		 */
-		stream->bufferPool().createBuffers(cfg.bufferCount);
+		stream->createBuffers(cfg.bufferCount);
 	}
 
 	state_ = CameraConfigured;
@@ -744,7 +744,7 @@ int Camera::freeBuffers()
 		 * All mappings must be destroyed before buffers can be freed
 		 * by the V4L2 device that has allocated them.
 		 */
-		stream->bufferPool().destroyBuffers();
+		stream->destroyBuffers();
 	}
 
 	state_ = CameraConfigured;
diff --git a/src/libcamera/stream.cpp b/src/libcamera/stream.cpp
index 6d80646b..12067c08 100644
--- a/src/libcamera/stream.cpp
+++ b/src/libcamera/stream.cpp
@@ -435,20 +435,52 @@ std::unique_ptr<Buffer> Stream::createBuffer(unsigned int index)
  * \fn Stream::bufferPool()
  * \brief Retrieve the buffer pool for the stream
  *
- * The buffer pool handles the buffers used to capture frames at the output of
- * the stream. It is initially created empty and shall be populated with
+ * The buffer pool handles the memory buffers used to store frames for the
+ * stream. It is initially created empty and shall be populated with
  * buffers before being used.
  *
  * \return A reference to the buffer pool
  */
 
 /**
+ * \fn Stream::buffers()
+ * \brief Retrieve the memory buffers in the Stream's buffer pool
+ * \return The list of stream's memory buffers
+ */
+
+/**
  * \fn Stream::configuration()
  * \brief Retrieve the active configuration of the stream
  * \return The active configuration of the stream
  */
 
 /**
+ * \brief Create buffers for the stream
+ * \param[in] count The number of buffers to create
+ *
+ * Create \a count empty buffers in the Stream's buffer pool.
+ */
+void Stream::createBuffers(unsigned int count)
+{
+	destroyBuffers();
+	if (count == 0)
+		return;
+
+	bufferPool_.createBuffers(count);
+}
+
+/**
+ * \brief Destroy buffers in the stream
+ *
+ * If no buffers have been created or if buffers have already been destroyed no
+ * operation is performed.
+ */
+void Stream::destroyBuffers()
+{
+	bufferPool_.destroyBuffers();
+}
+
+/**
  * \var Stream::bufferPool_
  * \brief The pool of buffers associated with the stream
  *
diff --git a/src/qcam/main_window.cpp b/src/qcam/main_window.cpp
index 7023e115..92f88832 100644
--- a/src/qcam/main_window.cpp
+++ b/src/qcam/main_window.cpp
@@ -235,7 +235,7 @@ void MainWindow::requestComplete(Request *request,
 		  << " fps: " << std::fixed << std::setprecision(2) << fps
 		  << std::endl;
 
-	BufferMemory *mem = &stream->bufferPool().buffers()[buffer->index()];
+	BufferMemory *mem = &stream->buffers()[buffer->index()];
 	display(buffer, mem);
 
 	request = camera_->createRequest();