pipeline: rpi: Rename RPi::Stream::setExternalBuffer()

Since we don't distinguish between externally and internally allocated
dma bufs, rename this function to setExportedBuffer() to clearer on its
function.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/libcamera/pipeline/rpi/common/pipeline_base.cpp

@@ -695,7 +695,7 @@ int PipelineHandlerBase::queueRequestDevice(Camera *camera, Request *request)
 			 * outside the v4l2 device. Store it in the stream buffer list
 			 * so we can track it.
 			 */
-			stream->setExternalBuffer(buffer);
+			stream->setExportedBuffer(buffer);
 		}
 
 		/*

src/libcamera/pipeline/rpi/common/rpi_stream.cpp

@@ -79,7 +79,7 @@ unsigned int Stream::getBufferId(FrameBuffer *buffer) const
 	return it->first;
 }
 
-void Stream::setExternalBuffer(FrameBuffer *buffer)
+void Stream::setExportedBuffer(FrameBuffer *buffer)
 {
 	bufferMap_.emplace(id_.get(), buffer);
 }

src/libcamera/pipeline/rpi/common/rpi_stream.h

@@ -76,7 +76,7 @@ public:
 	const BufferMap &getBuffers() const;
 	unsigned int getBufferId(FrameBuffer *buffer) const;
 
-	void setExternalBuffer(FrameBuffer *buffer);
+	void setExportedBuffer(FrameBuffer *buffer);
 
 	int prepareBuffers(unsigned int count);
 	int queueBuffer(FrameBuffer *buffer);