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a04e6b0cb2
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
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/* GStreamer android.hardware.Sensor Source
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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_AHSSRC_H__
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#define _GST_AHSSRC_H__
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#include <gst/base/gstdataqueue.h>
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#include <gst/base/gstpushsrc.h>
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#include "gst-android-hardware-sensor.h"
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G_BEGIN_DECLS
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#define GST_TYPE_AHS_SRC (gst_ahs_src_get_type())
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#define GST_AHS_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AHS_SRC,GstAHSSrc))
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#define GST_AHS_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AHS_SRC,GstAHSSrcClass))
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#define GST_IS_AHS_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AHS_SRC))
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#define GST_IS_AHS_SRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AHS_SRC))
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typedef struct _GstAHSSrc GstAHSSrc;
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typedef struct _GstAHSSrcClass GstAHSSrcClass;
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struct _GstAHSSrc
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{
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/* < private > */
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GstPushSrc parent;
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/* properties */
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gint32 sensor_delay;
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gdouble alpha;
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guint sample_interval;
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/* sensor type information */
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GEnumClass *sensor_enum_class;
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gint sensor_type;
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const gchar *sensor_type_name;
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/* JNI wrapper classes */
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GstAHSensorManager *manager;
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GstAHSensor *sensor;
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GstAHSensorEventListener *listener;
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/* timestamping */
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GstClockTime previous_time;
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gfloat *current_sample;
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/* buffers */
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gboolean callback_registered;
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gint sample_index;
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gint sample_length;
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gint buffer_size;
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/* multiprocessing */
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GstDataQueue *queue;
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};
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struct _GstAHSSrcClass
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{
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GstPushSrcClass parent_class;
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};
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GType gst_ahs_src_get_type (void);
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G_END_DECLS
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#endif
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