From patchwork Thu Feb 27 20:03:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Dufresne X-Patchwork-Id: 2895 Return-Path: Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 1FAD7626F6 for ; Thu, 27 Feb 2020 21:04:24 +0100 (CET) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: nicolas) with ESMTPSA id 8A9AB29654B From: Nicolas Dufresne To: libcamera-devel@lists.libcamera.org Date: Thu, 27 Feb 2020 15:03:53 -0500 Message-Id: <20200227200407.490616-14-nicolas.dufresne@collabora.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200227200407.490616-1-nicolas.dufresne@collabora.com> References: <20200227200407.490616-1-nicolas.dufresne@collabora.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v2 13/27] gst: libcamerasrc: Send stream start event X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Feb 2020 20:04:24 -0000 Prior to sending caps, we need to send a stream-start event. This requires generating a stream and a group id. The stream id is random for live sources and the group id is shared across all pads. Signed-off-by: Nicolas Dufresne Reviewed-by: Laurent Pinchart --- src/gstreamer/gstlibcamerasrc.cpp | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/gstreamer/gstlibcamerasrc.cpp b/src/gstreamer/gstlibcamerasrc.cpp index 5a86a6d..e2c63d1 100644 --- a/src/gstreamer/gstlibcamerasrc.cpp +++ b/src/gstreamer/gstlibcamerasrc.cpp @@ -129,8 +129,19 @@ static void gst_libcamera_src_task_enter(GstTask *task, GThread *thread, gpointer user_data) { GstLibcameraSrc *self = GST_LIBCAMERA_SRC(user_data); + GLibRecLocker(&self->stream_lock); + GstLibcameraSrcState *state = self->state; GST_DEBUG_OBJECT(self, "Streaming thread has started"); + + guint group_id = gst_util_group_id_next(); + for (GstPad *srcpad : state->srcpads) { + /* Create stream-id and push stream-start */ + g_autofree gchar *stream_id = gst_pad_create_stream_id(srcpad, GST_ELEMENT(self), nullptr); + GstEvent *event = gst_event_new_stream_start(stream_id); + gst_event_set_group_id(event, group_id); + gst_pad_push_event(srcpad, event); + } } static void