[libcamera-devel,v3,16/27] gst: libcamerasrc: Push segment event

Message ID 20200306202637.525587-17-nicolas@ndufresne.ca
State Accepted
Headers show
Series
  • GStreamer Element for libcamera
Related show

Commit Message

Nicolas Dufresne March 6, 2020, 8:26 p.m. UTC
From: Nicolas Dufresne <nicolas.dufresne@collabora.com>

Now that we have stream-start and caps, we can now push a segment event to
announce what time will our buffer correlate to. For live sources this is just
an open segment in time format.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 src/gstreamer/gstlibcamerasrc.cpp | 5 +++++
 1 file changed, 5 insertions(+)

Patch

diff --git a/src/gstreamer/gstlibcamerasrc.cpp b/src/gstreamer/gstlibcamerasrc.cpp
index 95af141..540a094 100644
--- a/src/gstreamer/gstlibcamerasrc.cpp
+++ b/src/gstreamer/gstlibcamerasrc.cpp
@@ -205,6 +205,11 @@  gst_libcamera_src_task_enter(GstTask *task, GThread *thread, gpointer user_data)
 			flow_ret = GST_FLOW_NOT_NEGOTIATED;
 			break;
 		}
+
+		/* Send an open segment event with time format. */
+		GstSegment segment;
+		gst_segment_init(&segment, GST_FORMAT_TIME);
+		gst_pad_push_event(srcpad, gst_event_new_segment(&segment));
 	}
 
 	ret = state->cam_->configure(state->config_.get());