libcamera: v4l2_videodevice: Add helper to queue all buffers

When starting the stream on a capture video device it is often needed to
queue all the allocated buffers. Add a helper method to do so, and
refactor the existing queueBuffer() method to make it clearer.

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

1 files changed, 4 insertions, 5 deletions

diff --git a/test/v4l2_videodevice/capture_async.cpp b/test/v4l2_videodevice/capture_async.cpp
index cea4fffb..4909f71a 100644
--- a/test/v4l2_videodevice/capture_async.cpp
+++ b/test/v4l2_videodevice/capture_async.cpp
@@ -46,11 +46,10 @@ protected:
 
 		capture_->bufferReady.connect(this, &CaptureAsyncTest::receiveBuffer);
 
-		/* Queue all the buffers to the device. */
-		for (Buffer &b : pool_.buffers()) {
-			if (capture_->queueBuffer(&b))
-				return TestFail;
-		}
+		std::vector<std::unique_ptr<Buffer>> buffers;
+		buffers = capture_->queueAllBuffers();
+		if (buffers.empty())
+			return TestFail;
 
 		ret = capture_->streamOn();
 		if (ret)