qcamsrc: Initial commit of QImaging QCam video source

sys/qcam/gstqcamsrc.h

@@ -0,0 +1,77 @@
+/* GStreamer
+ * Copyright (C) 2021 FIXME <fixme@example.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _GST_QCAM_SRC_H_
+#define _GST_QCAM_SRC_H_
+
+#include <gst/base/gstpushsrc.h>
+
+#include <QCamApi.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_QCAM_SRC   (gst_qcamsrc_get_type())
+#define GST_QCAM_SRC(obj)   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_QCAM_SRC,GstQcamSrc))
+#define GST_QCAM_SRC_CLASS(klass)   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_QCAM_SRC,GstQcamSrcClass))
+#define GST_IS_QCAM_SRC(obj)   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_QCAM_SRC))
+#define GST_IS_QCAM_SRC_CLASS(obj)   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_QCAM_SRC))
+
+typedef struct _GstQcamSrc GstQcamSrc;
+typedef struct _GstQcamSrcClass GstQcamSrcClass;
+
+struct _GstQcamSrc
+{
+  GstPushSrc base_qcamsrc;
+
+  /* camera handle */
+  QCam_Handle handle;
+  QCam_Settings qsettings;
+
+  /* properties */
+  gint device_index;
+  guint num_capture_buffers;
+  gint timeout;
+  guint exposure;
+  gfloat gain;
+  gint offset;
+  gint format;
+
+  GAsyncQueue *queue;
+  GstClockTime base_time;
+
+  guint32 last_frame_count;
+  guint32 total_dropped_frames;
+
+  GstCaps *caps;
+  gint width;
+  gint height;
+
+  gboolean stop_requested;
+};
+
+struct _GstQcamSrcClass
+{
+  GstPushSrcClass base_qcamsrc_class;
+};
+
+GType gst_qcamsrc_get_type (void);
+
+G_END_DECLS
+
+#endif