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6b728f184f
This allows us to signal what kind of audio we are expecting to record, which should tell the system to apply filters (such as echo cancellation, noise suppression, etc.) if required.
119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/* GStreamer
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* Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
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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 __OPENSLESRINGBUFFER_H__
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#define __OPENSLESRINGBUFFER_H__
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#include <gst/gst.h>
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#include <gst/audio/audio.h>
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#include "openslescommon.h"
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#include <SLES/OpenSLES.h>
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#include <SLES/OpenSLES_Android.h>
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G_BEGIN_DECLS
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#define MAX_NUMBER_OUTPUT_DEVICES 16
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#define GST_TYPE_OPENSLES_RING_BUFFER \
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(gst_opensles_ringbuffer_get_type())
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#define GST_OPENSLES_RING_BUFFER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENSLES_RING_BUFFER,GstOpenSLESRingBuffer))
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#define GST_OPENSLES_RING_BUFFER_CAST(obj) \
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((GstOpenSLESRingBuffer*) obj)
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#define GST_OPENSLES_RING_BUFFER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPENSLES_RING_BUFFER,GstOpenSLESRingBufferClass))
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#define GST_OPENSLES_RING_BUFFER_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OPENSLES_RING_BUFFER,GstOpenSLESRingBufferClass))
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#define GST_IS_OPENSLES_RING_BUFFER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPENSLES_RING_BUFFER))
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#define GST_IS_OPENSLES_RING_BUFFER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPENSLES_RING_BUFFER))
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typedef enum
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{
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RB_MODE_NONE = 0,
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RB_MODE_SRC,
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RB_MODE_SINK_PCM,
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RB_MODE_SINK_COMPRESSED,
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RB_MODE_LAST
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} RingBufferMode;
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typedef gboolean (*AcquireFunc) (GstAudioRingBuffer * rb, GstAudioRingBufferSpec * spec);
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typedef gboolean (*StateFunc) (GstAudioRingBuffer * rb);
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typedef struct _GstOpenSLESRingBuffer GstOpenSLESRingBuffer;
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typedef struct _GstOpenSLESRingBufferClass GstOpenSLESRingBufferClass;
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struct _GstOpenSLESRingBuffer
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{
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GstAudioRingBuffer object;
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RingBufferMode mode;
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/* engine interfaces */
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SLObjectItf engineObject;
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SLEngineItf engineEngine;
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/* outputMixObject */
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SLObjectItf outputMixObject;
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/* player interfaces */
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SLObjectItf playerObject;
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SLPlayItf playerPlay;
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SLVolumeItf playerVolume;
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gfloat volume;
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gboolean mute;
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gint is_prerolled; /* ATOMIC */
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/* recorder interfaces */
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SLObjectItf recorderObject;
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SLRecordItf recorderRecord;
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GstOpenSLESRecordingPreset preset;
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/* buffer queue */
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SLAndroidSimpleBufferQueueItf bufferQueue;
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guint data_segtotal;
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guint8 * data;
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guint data_size;
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guint cursor;
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gint segqueued; /* ATOMIC */
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gboolean is_queue_callback_registered;
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/* vmethods */
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AcquireFunc acquire;
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StateFunc start;
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StateFunc pause;
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StateFunc stop;
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StateFunc change_volume;
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StateFunc change_mute;
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};
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struct _GstOpenSLESRingBufferClass
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{
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GstAudioRingBufferClass parent_class;
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};
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GType gst_opensles_ringbuffer_get_type (void);
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GstAudioRingBuffer *gst_opensles_ringbuffer_new (RingBufferMode mode);
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void gst_opensles_ringbuffer_set_volume (GstAudioRingBuffer * rb, gfloat volume);
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void gst_opensles_ringbuffer_set_mute (GstAudioRingBuffer * rb, gboolean mute);
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G_END_DECLS
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#endif /* __OPENSLESRINGBUFFER_H__ */
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