lib: Add video_source_type enumeration

Add an enum to struct video_source that details the type of source
we're dealing with. This will be used to make decisions about buffer
allocation and handling in a more explicit way.

Use the video_source_type associated with a video_source to decide on
the appropriate allocation function and buffer handler at stream on time.
This is a more explicit method than relying on the presence of the
.alloc_buffers op and allows more flexibility.

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

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/libcamera-source.cpp b/lib/libcamera-source.cpp
index c53c915..7b4e212 100644
--- a/lib/libcamera-source.cpp
+++ b/lib/libcamera-source.cpp
@@ -390,6 +390,7 @@ struct video_source *libcamera_source_create(const char *devname)
 	}
 
 	src->src.ops = &libcamera_source_ops;
+	src->src.type = VIDEO_SOURCE_DMABUF;
 	src->cm = std::make_unique<CameraManager>();
 	src->cm->start();