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+/* GStreamer
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+ * Copyright (C) <2021> Charles Lu <chongzhi.lcz@alibaba-inc.com>
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+ *
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+ * This library is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU Library General Public
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+ * License as published by the Free Software Foundation; either
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+ * version 2 of the License, or (at your option) any later version.
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+ *
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+ * This library is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ * Library General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU Library General Public
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+ * License along with this library; if not, write to the
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+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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+ * Boston, MA 02110-1301, USA.
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+ */
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+#pragma once
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+
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+#include <gst/gst.h>
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+#include <gst/base/gstpushsrc.h>
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+
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+#include <gst/video/gstvideometa.h>
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+#include <gst/video/gstvideopool.h>
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+
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+#include "thead_camera.h"
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+
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+G_BEGIN_DECLS
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+#define GST_TYPE_THEAD_CAMERA \
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+ (gst_thead_camera_get_type())
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+#define GST_THEAD_CAMERA(obj) \
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+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_THEAD_CAMERA,GstTHeadCamera))
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+#define GST_THEAD_CAMERA_CLASS(klass) \
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+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_THEAD_CAMERA,GstTHeadCameraClass))
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+#define GST_IS_THEAD_CAMERA(obj) \
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+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_THEAD_CAMERA))
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+#define GST_IS_THEAD_CAMERA_CLASS(klass) \
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+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_THEAD_CAMERA))
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+typedef struct _GstTHeadCamera GstTHeadCamera;
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+typedef struct _GstTHeadCameraClass GstTHeadCameraClass;
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+
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+/**
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+ * GstTHeadCamera:
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+ *
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+ * Opaque data structure.
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+ */
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+struct _GstTHeadCamera
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+{
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+ GstPushSrc element;
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+
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+ /* video state */
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+ GstVideoInfo info; /* protected by the object or stream lock */
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+ gboolean bayer;
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+
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+ THeadCamera *theadCamera;
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+
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+ /* running time and frames for current caps */
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+ GstClockTime running_time; // total running time
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+ gint64 timestamp_offset; // PROP_TIMESTAMP_OFFSET
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+ gint64 n_frames; // total frames sent
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+ gboolean reverse;
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+
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+ /* previous caps running time and frames */
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+ GstClockTime accum_rtime; // accumulated running_time
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+ gint64 accum_frames; // accumulated frames
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+};
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+
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+struct _GstTHeadCameraClass
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+{
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+ GstPushSrcClass parent_class;
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+};
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+
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+GType gst_thead_camera_get_type (void);
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+
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+G_END_DECLS
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