gstreamer/sys/androidmedia/gstahssrc.h
Martin Kelly a04e6b0cb2 new plugin: Android hardware sensor source
ahssrc is a new plugin that enables Gstreamer to read from the
android.hardware.Sensor Android sensors. These sensors are treated as
buffers and can be passed through and manipulated by the pipeline.

https://bugzilla.gnome.org/show_bug.cgi?id=768110
2016-07-14 17:13:30 -04:00

80 lines
2.2 KiB
C

/* GStreamer android.hardware.Sensor Source
* Copyright (C) 2016 SurroundIO
* Author: Martin Kelly <martin@surround.io>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GST_AHSSRC_H__
#define _GST_AHSSRC_H__
#include <gst/base/gstdataqueue.h>
#include <gst/base/gstpushsrc.h>
#include "gst-android-hardware-sensor.h"
G_BEGIN_DECLS
#define GST_TYPE_AHS_SRC (gst_ahs_src_get_type())
#define GST_AHS_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AHS_SRC,GstAHSSrc))
#define GST_AHS_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AHS_SRC,GstAHSSrcClass))
#define GST_IS_AHS_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AHS_SRC))
#define GST_IS_AHS_SRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AHS_SRC))
typedef struct _GstAHSSrc GstAHSSrc;
typedef struct _GstAHSSrcClass GstAHSSrcClass;
struct _GstAHSSrc
{
/* < private > */
GstPushSrc parent;
/* properties */
gint32 sensor_delay;
gdouble alpha;
guint sample_interval;
/* sensor type information */
GEnumClass *sensor_enum_class;
gint sensor_type;
const gchar *sensor_type_name;
/* JNI wrapper classes */
GstAHSensorManager *manager;
GstAHSensor *sensor;
GstAHSensorEventListener *listener;
/* timestamping */
GstClockTime previous_time;
gfloat *current_sample;
/* buffers */
gboolean callback_registered;
gint sample_index;
gint sample_length;
gint buffer_size;
/* multiprocessing */
GstDataQueue *queue;
};
struct _GstAHSSrcClass
{
GstPushSrcClass parent_class;
};
GType gst_ahs_src_get_type (void);
G_END_DECLS
#endif