1 files changed, 13 insertions, 1 deletions
diff --git a/src/libcamera/v4l2_videodevice.cpp b/src/libcamera/v4l2_videodevice.cpp
index 86e299c0..c43d7cc5 100644
--- a/src/libcamera/v4l2_videodevice.cpp
+++ b/src/libcamera/v4l2_videodevice.cpp
@@ -1089,7 +1089,9 @@ int V4L2VideoDevice::streamOn()
  * \brief Stop the video stream
  *
  * Buffers that are still queued when the video stream is stopped are
- * implicitly dequeued, but no bufferReady signal is emitted for them.
+ * immediately dequeued with their status set to Buffer::BufferError,
+ * and the bufferReady signal is emitted for them. The order in which those
+ * buffers are dequeued is not specified.
  *
  * \return 0 on success or a negative error code otherwise
  */
@@ -1104,6 +1106,16 @@ int V4L2VideoDevice::streamOff()
 		return ret;
 	}
 
+	/* Send back all queued buffers. */
+	for (auto it : queuedBuffers_) {
+		unsigned int index = it.first;
+		Buffer *buffer = it.second;
+
+		buffer->index_ = index;
+		buffer->cancel();
+		bufferReady.emit(buffer);
+	}
+
 	queuedBuffers_.clear();
 	fdEvent_->setEnabled(false);