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5b1c0a4cfd
And especially also consider update versions, e.g. 10.5 with updates will be 1051 or similar and thus bigger than MAC_OS_X_VERSION_10_5 but still won't have the API we want to use.
151 lines
5.5 KiB
C
151 lines
5.5 KiB
C
/*
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* 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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*/
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#ifndef __GST_CORE_AUDIO_H__
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#define __GST_CORE_AUDIO_H__
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <gst/gst.h>
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#ifdef HAVE_IOS
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#include <CoreAudio/CoreAudioTypes.h>
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#define AudioDeviceID gint
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#define kAudioDeviceUnknown 0
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#else
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#include <CoreAudio/CoreAudio.h>
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#include <AudioToolbox/AudioToolbox.h>
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#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
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#include <CoreServices/CoreServices.h>
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#define AudioComponentFindNext FindNextComponent
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#define AudioComponentInstanceNew OpenAComponent
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#define AudioComponentInstanceDispose CloseComponent
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#define AudioComponent Component
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#define AudioComponentDescription ComponentDescription
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#endif
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#endif
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#include <AudioUnit/AudioUnit.h>
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#include "gstosxaudioelement.h"
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G_BEGIN_DECLS
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#define GST_TYPE_CORE_AUDIO \
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(gst_core_audio_get_type())
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#define GST_CORE_AUDIO(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CORE_AUDIO,GstCoreAudio))
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#define GST_CORE_AUDIO_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CORE_AUDIO,GstCoreAudioClass))
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#define GST_CORE_AUDIO_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_CORE_AUDIO,GstCoreAudioClass))
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#define GST_IS_CORE_AUDIO(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CORE_AUDIO))
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#define GST_IS_CORE_AUDIO_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CORE_AUDIO))
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#define CORE_AUDIO_FORMAT_IS_SPDIF(f) ((f).mFormat.mFormatID == 'IAC3' || (f).mFormat.mFormatID == 'iac3' || (f).mFormat.mFormatID == kAudioFormat60958AC3 || (f).mFormat.mFormatID == kAudioFormatAC3)
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#define CORE_AUDIO_FORMAT "FormatID: %" GST_FOURCC_FORMAT " rate: %f flags: 0x%x BytesPerPacket: %u FramesPerPacket: %u BytesPerFrame: %u ChannelsPerFrame: %u BitsPerChannel: %u"
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#define CORE_AUDIO_FORMAT_ARGS(f) GST_FOURCC_ARGS((f).mFormatID),(f).mSampleRate,(unsigned)(f).mFormatFlags,(unsigned)(f).mBytesPerPacket,(unsigned)(f).mFramesPerPacket,(unsigned)(f).mBytesPerFrame,(unsigned)(f).mChannelsPerFrame,(unsigned)(f).mBitsPerChannel
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typedef struct _GstCoreAudio GstCoreAudio;
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typedef struct _GstCoreAudioClass GstCoreAudioClass;
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struct _GstCoreAudio
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{
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GObject object;
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GstObject *osxbuf;
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GstOsxAudioElementInterface *element;
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gboolean is_src;
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gboolean is_passthrough;
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AudioDeviceID device_id;
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AudioStreamBasicDescription stream_format;
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gint stream_idx;
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gboolean io_proc_active;
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gboolean io_proc_needs_deactivation;
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/* For LPCM in/out */
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AudioUnit audiounit;
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AudioBufferList *recBufferList;
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#ifndef HAVE_IOS
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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 original_format;
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AudioDeviceIOProcID procID;
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#endif
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};
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struct _GstCoreAudioClass
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{
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GObjectClass parent_class;
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};
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GType gst_core_audio_get_type (void);
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void gst_core_audio_init_debug (void);
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GstCoreAudio * gst_core_audio_new (GstObject *osxbuf);
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gboolean gst_core_audio_open (GstCoreAudio *core_audio);
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gboolean gst_core_audio_close (GstCoreAudio *core_audio);
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gboolean gst_core_audio_initialize (GstCoreAudio *core_audio,
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AudioStreamBasicDescription format,
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GstCaps *caps,
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gboolean is_passthrough);
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void gst_core_audio_unitialize (GstCoreAudio *core_audio);
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gboolean gst_core_audio_start_processing (GstCoreAudio *core_audio);
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gboolean gst_core_audio_pause_processing (GstCoreAudio *core_audio);
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gboolean gst_core_audio_stop_processing (GstCoreAudio *core_audio);
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gboolean gst_core_audio_get_samples_and_latency (GstCoreAudio * core_audio,
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gdouble rate,
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guint *samples,
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gdouble *latency);
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void gst_core_audio_set_volume (GstCoreAudio *core_audio,
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gfloat volume);
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gboolean gst_core_audio_audio_device_is_spdif_avail (AudioDeviceID device_id);
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gboolean gst_core_audio_select_device (AudioDeviceID *device_id);
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gboolean gst_core_audio_select_source_device (AudioDeviceID *device_id);
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AudioChannelLayout * gst_core_audio_audio_device_get_channel_layout (AudioDeviceID device_id);
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G_END_DECLS
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#endif /* __GST_CORE_AUDIO_H__ */
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