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/*
* 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_ANDROID_HARDWARE_SENSOR_H__
#define __GST_ANDROID_HARDWARE_SENSOR_H__
#include <gst/gst.h>
#include <jni.h>
#include "gstsensors.h"
G_BEGIN_DECLS
typedef struct GstAHSensor
{
/* < private > */
jobject object;
} GstAHSensor;
typedef struct GstAHSensorData
{
jfloatArray array;
gfloat *values;
} GstAHSensorData;
typedef struct GstAHSensorEvent
{
/*
* Note that we don't use the Android event timestamp, as it's not reliable.
* See https://code.google.com/p/android/issues/detail?id=7981 for more
* details.
*/
gint32 accuracy;
GstAHSensorData data;
} GstAHSensorEvent;
typedef struct GstAHSensorEventListener
{
/* < private > */
jobject object;
gboolean registered;
} GstAHSensorEventListener;
typedef struct GstAHSensorManager
{
/* < private > */
jobject object;
} GstAHSensorManager;
gint gst_android_sensor_type_from_string (const gchar * type_str);
/* android.hardware.SensorListener onSensorChanged */
typedef void (*GstAHSensorCallback) (jobject sensor_event, gpointer user_data);
/* android.hardware.SensorListener onAccuracyChanged */
typedef void (*GstAHSAccuracyCallback) (jobject sensor, gint32 accuracy,
gpointer user_data);
gboolean gst_android_hardware_sensor_init (void);
void gst_android_hardware_sensor_deinit (void);
/*
* Example usage (excluding error checking):
*
* GstAHSensorManager *manager = gst_ah_sensor_get_manager ();
* GstAHSensor *sensor =
* gst_ah_sensor_get_default_sensor (manager, * sensor_type);
* GstAHSensorEventListener *listener =
* gst_ah_sensor_create_listener * (change_cb, accuracy_cb, self);
* gst_ah_sensor_register_listener (manager, listener, sensor,
* SensorDelay_SENSOR_DELAY_NORMAL);
*/
GstAHSensorManager *gst_ah_sensor_get_manager (void);
GstAHSensor *gst_ah_sensor_get_default_sensor (GstAHSensorManager * manager,
gint32 sensor_type);
GstAHSensorEventListener *gst_ah_sensor_create_listener (GstAHSensorCallback
sensor_cb, GstAHSAccuracyCallback accuracy_cb, gpointer user_data);
gboolean gst_ah_sensor_register_listener (GstAHSensorManager * self,
GstAHSensorEventListener * listener, GstAHSensor * sensor, gint32 delay);
void gst_ah_sensor_unregister_listener (GstAHSensorManager * self,
GstAHSensorEventListener * listener);
gboolean gst_ah_sensor_populate_event (GstAHSensorEvent * event,
jobject event_object, gint size);
void gst_ah_sensor_free_sensor_data (GstAHSensorData * data);
/*
* These constants come from the matching SENSOR_DELAY_* TYPE_* constants found
* in the Android documentation:
*
* SENSOR_DELAY_*:
* https://developer.android.com/reference/android/hardware/SensorManager.html
*
* TYPE_*:
* https://developer.android.com/reference/android/hardware/Sensor.html
*
* They are intended to be passed into the registerListener callback for
* listener registration. Note that, although these are hardcoded, we also do
* paranoid runtime checks during plugin init to verify that the API values
* haven't changed. This is unlikely but seems like a good precaution. When
* adding values, please keep the two lists in sync.
*/
enum
{
AHS_SENSOR_DELAY_FASTEST = 0,
AHS_SENSOR_DELAY_GAME = 1,
AHS_SENSOR_DELAY_NORMAL = 3,
AHS_SENSOR_DELAY_UI = 2
};
enum
{
AHS_SENSOR_TYPE_ACCELEROMETER = 0x1,
AHS_SENSOR_TYPE_AMBIENT_TEMPERATURE = 0xd,
AHS_SENSOR_TYPE_GAME_ROTATION_VECTOR = 0xf,
AHS_SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR = 0x14,
AHS_SENSOR_TYPE_GRAVITY = 0x9,
AHS_SENSOR_TYPE_GYROSCOPE = 0x4,
AHS_SENSOR_TYPE_GYROSCOPE_UNCALIBRATED = 0x10,
AHS_SENSOR_TYPE_HEART_RATE = 0x15,
AHS_SENSOR_TYPE_LIGHT = 0x5,
AHS_SENSOR_TYPE_LINEAR_ACCELERATION = 0xa,
AHS_SENSOR_TYPE_MAGNETIC_FIELD = 0x2,
AHS_SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED = 0xe,
AHS_SENSOR_TYPE_ORIENTATION = 0x3,
AHS_SENSOR_TYPE_PRESSURE = 0x6,
AHS_SENSOR_TYPE_PROXIMITY = 0x8,
AHS_SENSOR_TYPE_RELATIVE_HUMIDITY = 0xc,
AHS_SENSOR_TYPE_ROTATION_VECTOR = 0xb,
AHS_SENSOR_TYPE_SIGNIFICANT_MOTION = 0x11,
AHS_SENSOR_TYPE_STEP_COUNTER = 0x13,
AHS_SENSOR_TYPE_STEP_DETECTOR = 0x12
};
gsize gst_ah_sensor_get_sensor_data_size (gint sensor_type);
G_END_DECLS
#endif /* __GST_ANDROID_HARDWARE_SENSOR_H__ */
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