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/*
* GStreamer
* Copyright (C) 2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_OSX_RING_BUFFER_H__
#define __GST_OSX_RING_BUFFER_H__
#include <gst/gst.h>
#include <gst/audio/gstringbuffer.h>
#include <CoreAudio/CoreAudio.h>
#include <AudioToolbox/AudioToolbox.h>
#include "gstosxaudioelement.h"
G_BEGIN_DECLS
#define GST_TYPE_OSX_RING_BUFFER \
(gst_osx_ring_buffer_get_type())
#define GST_OSX_RING_BUFFER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSX_RING_BUFFER,GstOsxRingBuffer))
#define GST_OSX_RING_BUFFER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSX_RING_BUFFER,GstOsxRingBufferClass))
#define GST_OSX_RING_BUFFER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OSX_RING_BUFFER,GstOsxRingBufferClass))
#define GST_IS_OSX_RING_BUFFER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSX_RING_BUFFER))
#define GST_IS_OSX_RING_BUFFER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSX_RING_BUFFER))
#define RINGBUFFER_IS_SPDIF(t) ((t) == GST_BUFTYPE_AC3 || (t) == GST_BUFTYPE_DTS)
typedef struct _GstOsxRingBuffer GstOsxRingBuffer;
typedef struct _GstOsxRingBufferClass GstOsxRingBufferClass;
struct _GstOsxRingBuffer
{
GstRingBuffer object;
gboolean is_src;
gboolean is_passthrough;
gint stream_idx;
AudioDeviceID device_id;
gboolean io_proc_active;
gboolean io_proc_needs_deactivation;
guint buffer_len;
guint segoffset;
GstOsxAudioElementInterface *element;
/* For LPCM in/out */
AudioUnit audiounit;
AudioBufferList *recBufferList;
/* For SPDIF out */
pid_t hog_pid;
gboolean disabled_mixing;
AudioStreamID stream_id;
gboolean revert_format;
AudioStreamBasicDescription stream_format;
AudioStreamBasicDescription original_format;
AudioDeviceIOProcID procID;
};
struct _GstOsxRingBufferClass
{
GstRingBufferClass parent_class;
};
GType gst_osx_ring_buffer_get_type (void);
G_END_DECLS
#endif /* __GST_OSX_RING_BUFFER_H__ */
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