2 * Copyright (C) 2016 SurroundIO
3 * Author: Martin Kelly <martin@surround.io>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
20 * The UNION_CAST macro is copyright:
21 * Copyright (C) 2008-2016 Matt Gallagher ( http://cocoawithlove.com ).
22 * All rights reserved.
23 * Permission to use, copy, modify, and/or distribute this software for any purpose
24 * with or without fee is hereby granted, provided that the above copyright notice
25 * and this permission notice appear in all copies.
27 * THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
28 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
29 * FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
30 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
31 * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
32 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
43 #include "gstjniutils.h"
44 #include "gst-android-hardware-sensor.h"
46 static jobject (*gst_android_get_application_context) (void) = NULL;
48 GST_DEBUG_CATEGORY_STATIC (ahs_debug);
49 #define GST_CAT_DEFAULT ahs_debug
53 * http://www.cocoawithlove.com/2008/04/using-pointers-to-recast-in-c-is-bad.html
56 #define UNION_CAST(x, destType) \
57 (((union {__typeof__(x) a; destType b;})x).b)
62 jstring SENSOR_SERVICE;
63 jmethodID getSystemService;
64 } android_content_context = {
72 } android_hardware_sensor_event = {
78 jmethodID getDefaultSensor;;
79 jmethodID registerListener;
80 jmethodID unregisterListener;
81 } android_hardware_sensor_manager = {
87 jmethodID constructor;
88 } org_freedesktop_gstreamer_androidmedia_gstahscallback = {
91 GHashTable *sensor_sizes = NULL;
93 gst_ah_sensor_sensor_sizes_init (void)
102 AHS_SENSOR_TYPE_ACCELEROMETER, sizeof (GstAHSAccelerometerValues)}
104 AHS_SENSOR_TYPE_AMBIENT_TEMPERATURE,
105 sizeof (GstAHSAmbientTemperatureValues)}
107 AHS_SENSOR_TYPE_GAME_ROTATION_VECTOR,
108 sizeof (GstAHSGameRotationVectorValues)}
110 AHS_SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR,
111 sizeof (GstAHSGeomagneticRotationVectorValues)}
113 AHS_SENSOR_TYPE_GRAVITY, sizeof (GstAHSGravityValues)}
115 AHS_SENSOR_TYPE_GYROSCOPE, sizeof (GstAHSGyroscopeValues)}
117 AHS_SENSOR_TYPE_GYROSCOPE_UNCALIBRATED,
118 sizeof (GstAHSGyroscopeUncalibratedValues)}
120 AHS_SENSOR_TYPE_HEART_RATE, sizeof (GstAHSHeartRateValues)}
122 AHS_SENSOR_TYPE_LIGHT, sizeof (GstAHSLightValues)}
124 AHS_SENSOR_TYPE_LINEAR_ACCELERATION,
125 sizeof (GstAHSLinearAccelerationValues)}
127 AHS_SENSOR_TYPE_MAGNETIC_FIELD, sizeof (GstAHSMagneticFieldValues)}
129 AHS_SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED,
130 sizeof (GstAHSMagneticFieldUncalibratedValues)}
132 AHS_SENSOR_TYPE_ORIENTATION, sizeof (GstAHSOrientationValues)}
134 AHS_SENSOR_TYPE_PRESSURE, sizeof (GstAHSPressureValues)}
136 AHS_SENSOR_TYPE_PROXIMITY, sizeof (GstAHSProximityValues)}
138 AHS_SENSOR_TYPE_RELATIVE_HUMIDITY, sizeof (GstAHSRelativeHumidityValues)}
140 AHS_SENSOR_TYPE_ROTATION_VECTOR, sizeof (GstAHSRotationVectorValues)}
142 AHS_SENSOR_TYPE_STEP_COUNTER, sizeof (GstAHSStepCounterValues)}
144 AHS_SENSOR_TYPE_STEP_DETECTOR, sizeof (GstAHSStepDetectorValues)}
147 g_assert_null (sensor_sizes);
149 sensor_sizes = g_hash_table_new (g_int_hash, g_int_equal);
150 for (i = 0; i < G_N_ELEMENTS (types); i++)
151 g_hash_table_insert (sensor_sizes, &types[i].type, &types[i].size);
155 gst_ah_sensor_sensor_sizes_deinit (void)
157 g_hash_table_unref (sensor_sizes);
162 gst_ah_sensor_get_sensor_data_size (gint sensor_type)
164 return *((gsize *) g_hash_table_lookup (sensor_sizes, &sensor_type));
168 gst_ah_sensor_on_sensor_changed (JNIEnv * env, jclass klass,
169 jobject sensor_event, jlong callback, jlong user_data)
171 GstAHSensorCallback cb = (GstAHSensorCallback) (gsize) callback;
174 cb (sensor_event, (gpointer) (gsize) user_data);
178 gst_ah_sensor_on_accuracy_changed (JNIEnv * env, jclass klass,
179 jobject sensor, jint accuracy, jlong callback, jlong user_data)
181 GstAHSAccuracyCallback cb = (GstAHSAccuracyCallback) (gsize) callback;
184 cb (sensor, accuracy, (gpointer) (gsize) user_data);
187 static gboolean natives_registered = FALSE;
189 static JNINativeMethod native_methods[] = {
190 {(gchar *) "gst_ah_sensor_on_sensor_changed",
191 (gchar *) "(Landroid/hardware/SensorEvent;JJ)V",
192 (void *) gst_ah_sensor_on_sensor_changed},
193 {(gchar *) "gst_ah_sensor_on_accuracy_changed",
194 (gchar *) "(Landroid/hardware/Sensor;IJJ)V",
195 (void *) gst_ah_sensor_on_accuracy_changed}
202 JNIEnv *env = gst_amc_jni_get_env ();
211 * Lookup the Android function to get an Android context. This function will
212 * be provided when the plugin is built via ndk-build.
214 module = g_module_open (NULL, G_MODULE_BIND_LOCAL);
217 success = g_module_symbol (module, "gst_android_get_application_context",
218 (gpointer *) & gst_android_get_application_context);
219 if (!success || !gst_android_get_application_context)
221 g_module_close (module);
223 /* android.content.Context */
224 klass = android_content_context.klass = gst_amc_jni_get_class (env, &err,
225 "android/content/Context");
228 android_content_context.getSystemService =
229 gst_amc_jni_get_method_id (env, &err, klass, "getSystemService",
230 "(Ljava/lang/String;)Ljava/lang/Object;");
231 if (!android_content_context.getSystemService)
235 gst_amc_jni_get_static_field_id (env, &err, klass, "SENSOR_SERVICE",
236 "Ljava/lang/String;");
239 if (!gst_amc_jni_get_static_object_field (env, &err, klass, fieldID,
240 &android_content_context.SENSOR_SERVICE))
242 android_content_context.SENSOR_SERVICE =
243 gst_amc_jni_object_make_global (env,
244 android_content_context.SENSOR_SERVICE);
245 if (!android_content_context.SENSOR_SERVICE)
248 /* android.hardware.SensorEvent */
249 klass = android_hardware_sensor_event.klass =
250 gst_amc_jni_get_class (env, &err, "android/hardware/SensorEvent");
253 android_hardware_sensor_event.accuracy =
254 gst_amc_jni_get_field_id (env, &err, klass, "accuracy", "I");
255 if (!android_hardware_sensor_event.accuracy)
257 android_hardware_sensor_event.values =
258 gst_amc_jni_get_field_id (env, &err, klass, "values", "[F");
259 if (!android_hardware_sensor_event.values)
262 /* android.hardware.SensorManager */
263 klass = android_hardware_sensor_manager.klass =
264 gst_amc_jni_get_class (env, &err, "android/hardware/SensorManager");
267 android_hardware_sensor_manager.getDefaultSensor =
268 gst_amc_jni_get_method_id (env, &err, klass,
269 "getDefaultSensor", "(I)Landroid/hardware/Sensor;");
270 if (!android_hardware_sensor_manager.getDefaultSensor)
272 android_hardware_sensor_manager.registerListener =
273 gst_amc_jni_get_method_id (env, &err, klass,
275 "(Landroid/hardware/SensorEventListener;Landroid/hardware/Sensor;I)Z");
276 if (!android_hardware_sensor_manager.registerListener)
278 android_hardware_sensor_manager.unregisterListener =
279 gst_amc_jni_get_method_id (env, &err, klass,
280 "unregisterListener", "(Landroid/hardware/SensorEventListener;)V");
281 if (!android_hardware_sensor_manager.unregisterListener)
285 gst_amc_jni_get_static_field_id (env, &err, klass, "SENSOR_DELAY_FASTEST",
289 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &delay))
291 if (delay != AHS_SENSOR_DELAY_FASTEST) {
292 GST_ERROR ("SENSOR_DELAY_FASTEST has changed value");
297 gst_amc_jni_get_static_field_id (env, &err, klass, "SENSOR_DELAY_GAME",
301 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &delay))
303 if (delay != AHS_SENSOR_DELAY_GAME) {
304 GST_ERROR ("SENSOR_DELAY_GAME has changed value");
309 gst_amc_jni_get_static_field_id (env, &err, klass, "SENSOR_DELAY_NORMAL",
313 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &delay))
315 if (delay != AHS_SENSOR_DELAY_NORMAL) {
316 GST_ERROR ("SENSOR_DELAY_NORMAL has changed value");
321 gst_amc_jni_get_static_field_id (env, &err, klass, "SENSOR_DELAY_UI",
325 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &delay))
327 if (delay != AHS_SENSOR_DELAY_UI) {
328 GST_ERROR ("SENSOR_DELAY_UI has changed value");
332 /* android.hardware.Sensor */
333 klass = gst_amc_jni_get_class (env, &err, "android/hardware/Sensor");
338 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_ACCELEROMETER",
342 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
344 if (type != AHS_SENSOR_TYPE_ACCELEROMETER) {
345 GST_ERROR ("TYPE_ACCELEROMETER has changed value");
349 fieldID = gst_amc_jni_get_static_field_id (env, &err, klass,
350 "TYPE_AMBIENT_TEMPERATURE", "I");
353 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
355 if (type != AHS_SENSOR_TYPE_AMBIENT_TEMPERATURE) {
356 GST_ERROR ("TYPE_AMBIENT_TEMPERATURE has changed value");
360 fieldID = gst_amc_jni_get_static_field_id (env, &err, klass,
361 "TYPE_GAME_ROTATION_VECTOR", "I");
364 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
366 if (type != AHS_SENSOR_TYPE_GAME_ROTATION_VECTOR) {
367 GST_ERROR ("TYPE_GAME_ROTATION_VECTOR has changed value");
371 fieldID = gst_amc_jni_get_static_field_id (env, &err, klass,
372 "TYPE_GEOMAGNETIC_ROTATION_VECTOR", "I");
375 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
377 if (type != AHS_SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR) {
378 GST_ERROR ("TYPE_GEOMAGNETIC_ROTATION_VECTOR has changed value");
383 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_GRAVITY", "I");
386 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
388 if (type != AHS_SENSOR_TYPE_GRAVITY) {
389 GST_ERROR ("TYPE_GRAVITY has changed value");
394 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_GYROSCOPE", "I");
397 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
399 if (type != AHS_SENSOR_TYPE_GYROSCOPE) {
400 GST_ERROR ("TYPE_GYROSCOPE has changed value");
405 gst_amc_jni_get_static_field_id (env, &err, klass,
406 "TYPE_GYROSCOPE_UNCALIBRATED", "I");
409 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
411 if (type != AHS_SENSOR_TYPE_GYROSCOPE_UNCALIBRATED) {
412 GST_ERROR ("TYPE_GYROSCOPE_UNCALIBRATED has changed value");
417 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_HEART_RATE",
421 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
423 if (type != AHS_SENSOR_TYPE_HEART_RATE) {
424 GST_ERROR ("TYPE_HEART_RATE has changed value");
429 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_LIGHT", "I");
432 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
434 if (type != AHS_SENSOR_TYPE_LIGHT) {
435 GST_ERROR ("TYPE_LIGHT has changed value");
440 gst_amc_jni_get_static_field_id (env, &err, klass,
441 "TYPE_LINEAR_ACCELERATION", "I");
444 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
446 if (type != AHS_SENSOR_TYPE_LINEAR_ACCELERATION) {
447 GST_ERROR ("TYPE_LINEAR_ACCELERATION has changed value");
452 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_MAGNETIC_FIELD",
456 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
458 if (type != AHS_SENSOR_TYPE_MAGNETIC_FIELD) {
459 GST_ERROR ("TYPE_MAGNETIC_FIELD has changed value");
464 gst_amc_jni_get_static_field_id (env, &err, klass,
465 "TYPE_MAGNETIC_FIELD_UNCALIBRATED", "I");
468 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
470 if (type != AHS_SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED) {
471 GST_ERROR ("TYPE_MAGNETIC_FIELD_UNCALIBRATED has changed value");
476 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_ORIENTATION",
480 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
482 if (type != AHS_SENSOR_TYPE_ORIENTATION) {
483 GST_ERROR ("TYPE_ORIENTATION has changed value");
488 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_PRESSURE", "I");
491 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
493 if (type != AHS_SENSOR_TYPE_PRESSURE) {
494 GST_ERROR ("TYPE_PRESSURE has changed value");
499 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_PROXIMITY", "I");
502 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
504 if (type != AHS_SENSOR_TYPE_PROXIMITY) {
505 GST_ERROR ("TYPE_PROXIMITY has changed value");
510 gst_amc_jni_get_static_field_id (env, &err, klass,
511 "TYPE_RELATIVE_HUMIDITY", "I");
514 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
516 if (type != AHS_SENSOR_TYPE_RELATIVE_HUMIDITY) {
517 GST_ERROR ("TYPE_RELATIVE_HUMIDITY has changed value");
522 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_ROTATION_VECTOR",
526 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
528 if (type != AHS_SENSOR_TYPE_ROTATION_VECTOR) {
529 GST_ERROR ("TYPE_ROTATION_VECTOR has changed value");
534 gst_amc_jni_get_static_field_id (env, &err, klass,
535 "TYPE_SIGNIFICANT_MOTION", "I");
538 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
540 if (type != AHS_SENSOR_TYPE_SIGNIFICANT_MOTION) {
541 GST_ERROR ("TYPE_SIGNIFICANT_MOTION has changed value");
546 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_STEP_COUNTER",
550 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
552 if (type != AHS_SENSOR_TYPE_STEP_COUNTER) {
553 GST_ERROR ("TYPE_STEP_COUNTER has changed value");
558 gst_amc_jni_get_static_field_id (env, &err, klass, "TYPE_STEP_DETECTOR",
562 if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID, &type))
564 if (type != AHS_SENSOR_TYPE_STEP_DETECTOR) {
565 GST_ERROR ("TYPE_STEP_DETECTOR has changed value");
569 /* org.freedesktop.gstreamer.androidmedia.GstAhsCallback */
570 if (!org_freedesktop_gstreamer_androidmedia_gstahscallback.klass) {
571 org_freedesktop_gstreamer_androidmedia_gstahscallback.klass =
572 gst_amc_jni_get_application_class (env,
573 "org/freedesktop/gstreamer/androidmedia/GstAhsCallback", &err);
575 if (!org_freedesktop_gstreamer_androidmedia_gstahscallback.klass)
577 org_freedesktop_gstreamer_androidmedia_gstahscallback.constructor =
578 gst_amc_jni_get_method_id (env, &err,
579 org_freedesktop_gstreamer_androidmedia_gstahscallback.klass, "<init>",
581 if (!org_freedesktop_gstreamer_androidmedia_gstahscallback.constructor)
584 if ((*env)->RegisterNatives (env,
585 org_freedesktop_gstreamer_androidmedia_gstahscallback.klass,
586 native_methods, G_N_ELEMENTS (native_methods))) {
587 GST_ERROR ("Failed to register native methods for GstAhsCallback");
590 natives_registered = TRUE;
596 GST_ERROR ("Failed to initialize Android classes: %s", err->message);
597 g_clear_error (&err);
604 gst_android_hardware_sensor_init (void)
606 GST_DEBUG_CATEGORY_INIT (ahs_debug, "ahs", 0,
607 "Android Gstreamer Hardware Sensor");
608 if (!_init_classes ()) {
609 gst_android_hardware_sensor_deinit ();
613 gst_ah_sensor_sensor_sizes_init ();
619 gst_android_hardware_sensor_deinit (void)
621 JNIEnv *env = gst_amc_jni_get_env ();
623 if (android_content_context.SENSOR_SERVICE) {
624 gst_amc_jni_object_unref (env, android_content_context.SENSOR_SERVICE);
625 android_content_context.SENSOR_SERVICE = NULL;
628 if (android_content_context.klass) {
629 gst_amc_jni_object_unref (env, android_content_context.klass);
630 android_content_context.klass = NULL;
633 if (android_hardware_sensor_event.klass) {
634 gst_amc_jni_object_unref (env, android_hardware_sensor_event.klass);
635 android_hardware_sensor_event.klass = NULL;
638 if (android_hardware_sensor_manager.klass) {
639 gst_amc_jni_object_unref (env, android_hardware_sensor_manager.klass);
640 android_hardware_sensor_manager.klass = NULL;
643 if (org_freedesktop_gstreamer_androidmedia_gstahscallback.klass) {
644 if (natives_registered) {
645 (*env)->UnregisterNatives (env,
646 org_freedesktop_gstreamer_androidmedia_gstahscallback.klass);
647 natives_registered = FALSE;
649 gst_amc_jni_object_unref (env,
650 org_freedesktop_gstreamer_androidmedia_gstahscallback.klass);
651 org_freedesktop_gstreamer_androidmedia_gstahscallback.klass = NULL;
655 gst_ah_sensor_sensor_sizes_deinit ();
659 gst_ah_sensor_get_manager (void)
663 JNIEnv *env = gst_amc_jni_get_env ();
664 GstAHSensorManager *manager;
668 context = gst_android_get_application_context ();
669 success = gst_amc_jni_call_object_method (env, &err, context,
670 android_content_context.getSystemService,
671 &object, android_content_context.SENSOR_SERVICE);
675 object = gst_amc_jni_object_make_global (env, object);
679 manager = g_slice_new (GstAHSensorManager);
680 manager->object = object;
686 gst_ah_sensor_get_default_sensor (GstAHSensorManager * self, gint32 sensor_type)
688 JNIEnv *env = gst_amc_jni_get_env ();
693 if (!gst_amc_jni_call_object_method (env, &err, self->object,
694 android_hardware_sensor_manager.getDefaultSensor,
695 &object, sensor_type))
698 object = gst_amc_jni_object_make_global (env, object);
702 sensor = g_slice_new (GstAHSensor);
703 sensor->object = object;
708 GstAHSensorEventListener *
709 gst_ah_sensor_create_listener (GstAHSensorCallback sensor_cb,
710 GstAHSAccuracyCallback accuracy_cb, gpointer user_data)
712 JNIEnv *env = gst_amc_jni_get_env ();
714 GstAHSensorEventListener *listener;
717 object = gst_amc_jni_new_object (env,
720 org_freedesktop_gstreamer_androidmedia_gstahscallback.klass,
721 org_freedesktop_gstreamer_androidmedia_gstahscallback.constructor,
722 UNION_CAST (sensor_cb, jlong),
723 UNION_CAST (accuracy_cb, jlong), UNION_CAST (user_data, jlong));
725 GST_ERROR ("Failed to create listener callback class");
726 g_clear_error (&err);
730 listener = g_slice_new (GstAHSensorEventListener);
731 listener->object = object;
737 gst_ah_sensor_register_listener (GstAHSensorManager * self,
738 GstAHSensorEventListener * listener, GstAHSensor * sensor, gint32 delay)
740 JNIEnv *env = gst_amc_jni_get_env ();
744 gst_amc_jni_call_boolean_method (env, &err, self->object,
745 android_hardware_sensor_manager.registerListener, &success,
746 listener->object, sensor->object, (jint) delay);
749 ("Failed to call android.hardware.SensorManager.registerListener: %s",
751 g_clear_error (&err);
754 listener->registered = TRUE;
760 gst_ah_sensor_unregister_listener (GstAHSensorManager * self,
761 GstAHSensorEventListener * listener)
763 JNIEnv *env = gst_amc_jni_get_env ();
766 gst_amc_jni_call_void_method (env, &err, self->object,
767 android_hardware_sensor_manager.unregisterListener, listener->object);
770 ("Failed to call android.hardware.SensorManager.unregisterListener: %s",
772 g_clear_error (&err);
774 listener->registered = FALSE;
778 gst_ah_sensor_populate_event (GstAHSensorEvent * event, jobject event_object,
781 JNIEnv *env = gst_amc_jni_get_env ();
783 jfloatArray object_array;
786 gst_amc_jni_get_int_field (env, &err,
787 event_object, android_hardware_sensor_event.accuracy, &event->accuracy);
789 GST_ERROR ("Failed to get sensor accuracy field: %s", err->message);
793 gst_amc_jni_get_object_field (env, &err, event_object,
794 android_hardware_sensor_event.values, &object_array);
796 GST_ERROR ("Failed to get sensor values field: %s", err->message);
800 values = (*env)->GetFloatArrayElements (env, object_array, NULL);
802 GST_ERROR ("Failed to get float array elements from object array");
803 gst_amc_jni_object_local_unref (env, object_array);
806 /* We can't use gst_amc_jni_object_make_global here because we need to call
807 * ReleaseFloatArrayElements before doing a local unref in the failure case,
808 * but gst_amc_jni_object_make_global would unref before we could Release.
810 event->data.array = gst_amc_jni_object_ref (env, object_array);
811 if (!event->data.array) {
812 (*env)->ReleaseFloatArrayElements (env, object_array, values, JNI_ABORT);
813 gst_amc_jni_object_local_unref (env, object_array);
816 event->data.values = values;
817 gst_amc_jni_object_local_unref (env, object_array);
822 g_clear_error (&err);
827 gst_ah_sensor_free_sensor_data (GstAHSensorData * data)
829 JNIEnv *env = gst_amc_jni_get_env ();
831 (*env)->ReleaseFloatArrayElements (env, data->array, data->values, JNI_ABORT);
832 gst_amc_jni_object_unref (env, data->array);