diff options
| author | Nicolas Dufresne <nicolas.dufresne@collabora.com> | 2020-01-18 16:31:23 -0500 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2020-01-20 12:21:58 +0200 |
| commit | 632e0fc09f4e7f32307c101ef9ee970669e1ccf2 (patch) | |
| tree | 8e056e8875952c98744d8a3b7fc80bf2508dc5c8 | |
| parent | 3628fb704b49101000ea901bfa5132a3e8a781cd (diff) | |
v4l2: Extend device caps with V4L2_CAP_STREAMING
This capability tells the application that mmap() is supported. GStreamer
would return an error saying there there is no input/output method supported
by this device otherwise. This was tested with:
LD_PRELOAD=$(pwd)/build/src/v4l2/v4l2-compat.so GST_DEBUG="v4l2*:7" gst-launch-1.0 v4l2src ! videoconvert ! autovideosink
With this patch, GStreamer will reach playing state. It then blocks waiting on
poll() which is not implemented yet on our side.
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
| -rw-r--r-- | src/v4l2/v4l2_camera_proxy.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp index 3013a3d1..e58fd6a0 100644 --- a/src/v4l2/v4l2_camera_proxy.cpp +++ b/src/v4l2/v4l2_camera_proxy.cpp @@ -179,7 +179,7 @@ void V4L2CameraProxy::querycap(std::shared_ptr<Camera> camera) sizeof(capabilities_.bus_info)); /* \todo Put this in a header/config somewhere. */ capabilities_.version = KERNEL_VERSION(5, 2, 0); - capabilities_.device_caps = V4L2_CAP_VIDEO_CAPTURE; + capabilities_.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; capabilities_.capabilities = capabilities_.device_caps | V4L2_CAP_DEVICE_CAPS; memset(capabilities_.reserved, 0, sizeof(capabilities_.reserved)); |