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59191412eb
A big refactoring to allow passthrough AC3/DTS over SPDIF. Several random cleanups and minor fixes.
114 lines
4 KiB
C
114 lines
4 KiB
C
/*
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* GStreamer
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* Copyright (C) 2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
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* Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Alternatively, the contents of this file may be used under the
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* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
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* which case the following provisions apply instead of the ones
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* mentioned above:
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_OSX_RING_BUFFER_H__
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#define __GST_OSX_RING_BUFFER_H__
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#include <gst/gst.h>
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#include <gst/audio/gstringbuffer.h>
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#include <CoreAudio/CoreAudio.h>
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#include "gstosxaudioelement.h"
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G_BEGIN_DECLS
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#define GST_TYPE_OSX_RING_BUFFER \
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(gst_osx_ring_buffer_get_type())
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#define GST_OSX_RING_BUFFER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSX_RING_BUFFER,GstOsxRingBuffer))
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#define GST_OSX_RING_BUFFER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSX_RING_BUFFER,GstOsxRingBufferClass))
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#define GST_OSX_RING_BUFFER_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OSX_RING_BUFFER,GstOsxRingBufferClass))
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#define GST_IS_OSX_RING_BUFFER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSX_RING_BUFFER))
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#define GST_IS_OSX_RING_BUFFER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSX_RING_BUFFER))
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#define RINGBUFFER_IS_SPDIF(t) ((t) == GST_BUFTYPE_AC3 || (t) == GST_BUFTYPE_DTS)
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typedef struct _GstOsxRingBuffer GstOsxRingBuffer;
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typedef struct _GstOsxRingBufferClass GstOsxRingBufferClass;
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struct _GstOsxRingBuffer
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{
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GstRingBuffer object;
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gboolean is_spdif_capable;
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gboolean is_src;
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gboolean is_passthrough;
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gint stream_idx;
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AudioDeviceID device_id;
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gboolean io_proc_active;
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gboolean io_proc_needs_deactivation;
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guint buffer_len;
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guint segoffset;
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GstOsxAudioElementInterface *element;
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/* For LPCM in/out */
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AudioUnit audiounit;
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AudioBufferList *recBufferList;
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/* For SPDIF out */
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pid_t hog_pid;
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gboolean disabled_mixing;
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AudioStreamID stream_id;
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gboolean revert_format;
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AudioStreamBasicDescription stream_format;
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AudioStreamBasicDescription original_format;
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AudioDeviceIOProcID procID;
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};
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struct _GstOsxRingBufferClass
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{
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GstRingBufferClass parent_class;
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};
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GType gst_osx_ring_buffer_get_type (void);
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G_END_DECLS
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#endif /* __GST_OSX_RING_BUFFER_H__ */
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