157 lines
4.9 KiB
C
157 lines
4.9 KiB
C
/*
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* Copyright (C) 2016 SurroundIO
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* Author: Martin Kelly <martin@surround.io>
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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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#ifndef __GST_ANDROID_HARDWARE_SENSOR_H__
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#define __GST_ANDROID_HARDWARE_SENSOR_H__
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#include <gst/gst.h>
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#include <jni.h>
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#include "gstsensors.h"
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G_BEGIN_DECLS
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typedef struct GstAHSensor
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{
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/* < private > */
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jobject object;
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} GstAHSensor;
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typedef struct GstAHSensorData
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{
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jfloatArray array;
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gfloat *values;
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} GstAHSensorData;
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typedef struct GstAHSensorEvent
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{
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/*
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* Note that we don't use the Android event timestamp, as it's not reliable.
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* See https://code.google.com/p/android/issues/detail?id=7981 for more
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* details.
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*/
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gint32 accuracy;
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GstAHSensorData data;
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} GstAHSensorEvent;
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typedef struct GstAHSensorEventListener
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{
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/* < private > */
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jobject object;
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gboolean registered;
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} GstAHSensorEventListener;
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typedef struct GstAHSensorManager
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{
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/* < private > */
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jobject object;
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} GstAHSensorManager;
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gint gst_android_sensor_type_from_string (const gchar * type_str);
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/* android.hardware.SensorListener onSensorChanged */
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typedef void (*GstAHSensorCallback) (jobject sensor_event, gpointer user_data);
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/* android.hardware.SensorListener onAccuracyChanged */
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typedef void (*GstAHSAccuracyCallback) (jobject sensor, gint32 accuracy,
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gpointer user_data);
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gboolean gst_android_hardware_sensor_init (void);
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void gst_android_hardware_sensor_deinit (void);
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/*
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* Example usage (excluding error checking):
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*
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* GstAHSensorManager *manager = gst_ah_sensor_get_manager ();
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* GstAHSensor *sensor =
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* gst_ah_sensor_get_default_sensor (manager, * sensor_type);
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* GstAHSensorEventListener *listener =
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* gst_ah_sensor_create_listener * (change_cb, accuracy_cb, self);
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* gst_ah_sensor_register_listener (manager, listener, sensor,
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* SensorDelay_SENSOR_DELAY_NORMAL);
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*/
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GstAHSensorManager *gst_ah_sensor_get_manager (void);
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GstAHSensor *gst_ah_sensor_get_default_sensor (GstAHSensorManager * manager,
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gint32 sensor_type);
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GstAHSensorEventListener *gst_ah_sensor_create_listener (GstAHSensorCallback
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sensor_cb, GstAHSAccuracyCallback accuracy_cb, gpointer user_data);
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gboolean gst_ah_sensor_register_listener (GstAHSensorManager * self,
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GstAHSensorEventListener * listener, GstAHSensor * sensor, gint32 delay);
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void gst_ah_sensor_unregister_listener (GstAHSensorManager * self,
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GstAHSensorEventListener * listener);
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gboolean gst_ah_sensor_populate_event (GstAHSensorEvent * event,
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jobject event_object, gint size);
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void gst_ah_sensor_free_sensor_data (GstAHSensorData * data);
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/*
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* These constants come from the matching SENSOR_DELAY_* TYPE_* constants found
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* in the Android documentation:
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*
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* SENSOR_DELAY_*:
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* https://developer.android.com/reference/android/hardware/SensorManager.html
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*
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* TYPE_*:
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* https://developer.android.com/reference/android/hardware/Sensor.html
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*
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* They are intended to be passed into the registerListener callback for
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* listener registration. Note that, although these are hardcoded, we also do
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* paranoid runtime checks during plugin init to verify that the API values
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* haven't changed. This is unlikely but seems like a good precaution. When
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* adding values, please keep the two lists in sync.
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*/
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enum
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{
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AHS_SENSOR_DELAY_FASTEST = 0,
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AHS_SENSOR_DELAY_GAME = 1,
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AHS_SENSOR_DELAY_NORMAL = 3,
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AHS_SENSOR_DELAY_UI = 2
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};
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enum
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{
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AHS_SENSOR_TYPE_ACCELEROMETER = 0x1,
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AHS_SENSOR_TYPE_AMBIENT_TEMPERATURE = 0xd,
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AHS_SENSOR_TYPE_GAME_ROTATION_VECTOR = 0xf,
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AHS_SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR = 0x14,
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AHS_SENSOR_TYPE_GRAVITY = 0x9,
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AHS_SENSOR_TYPE_GYROSCOPE = 0x4,
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AHS_SENSOR_TYPE_GYROSCOPE_UNCALIBRATED = 0x10,
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AHS_SENSOR_TYPE_HEART_RATE = 0x15,
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AHS_SENSOR_TYPE_LIGHT = 0x5,
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AHS_SENSOR_TYPE_LINEAR_ACCELERATION = 0xa,
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AHS_SENSOR_TYPE_MAGNETIC_FIELD = 0x2,
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AHS_SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED = 0xe,
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AHS_SENSOR_TYPE_ORIENTATION = 0x3,
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AHS_SENSOR_TYPE_PRESSURE = 0x6,
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AHS_SENSOR_TYPE_PROXIMITY = 0x8,
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AHS_SENSOR_TYPE_RELATIVE_HUMIDITY = 0xc,
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AHS_SENSOR_TYPE_ROTATION_VECTOR = 0xb,
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AHS_SENSOR_TYPE_SIGNIFICANT_MOTION = 0x11,
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AHS_SENSOR_TYPE_STEP_COUNTER = 0x13,
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AHS_SENSOR_TYPE_STEP_DETECTOR = 0x12
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};
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gsize gst_ah_sensor_get_sensor_data_size (gint sensor_type);
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G_END_DECLS
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#endif /* __GST_ANDROID_HARDWARE_SENSOR_H__ */
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