v4l2: write size value when dequeueing buffer

When we dequeue a buffer from a V4L2 device, it would be good to know
the size of the buffer. Save it to our struct video_buffer when
dequeueing.

Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/v4l2.c b/lib/v4l2.c
index 7bcbd73..01129a5 100644
--- a/lib/v4l2.c
+++ b/lib/v4l2.c
@@ -789,6 +789,7 @@ int v4l2_dequeue_buffer(struct v4l2_device *dev, struct video_buffer *buffer)
 	}
 
 	buffer->index = buf.index;
+	buffer->size = buf.length;
 	buffer->mem = dev->buffers.buffers[buf.index].mem;
 	buffer->bytesused = buf.bytesused;
 	buffer->timestamp = buf.timestamp;