1 /* 2 * GStreamer 3 * Copyright (C) 2012-2013 Fluendo S.A. <support@fluendo.com> 4 * Authors: Josep Torra Vallès <josep@fluendo.com> 5 * Andoni Morales Alastruey <amorales@fluendo.com> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public 18 * License along with this library; if not, write to the 19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 20 * Boston, MA 02111-1307, USA. 21 * 22 */ 23 24 #include "gstosxcoreaudio.h" 25 #include <gst/audio/audio-channels.h> 26 27 typedef struct 28 { 29 GMutex lock; 30 GCond cond; 31 } PropertyMutex; 32 33 gboolean gst_core_audio_bind_device (GstCoreAudio *core_audio); 34 35 void gst_core_audio_dump_channel_layout (AudioChannelLayout * channel_layout); 36 37 void gst_core_audio_remove_render_callback (GstCoreAudio * core_audio); 38 39 gboolean gst_core_audio_io_proc_start (GstCoreAudio * core_audio); 40 41 gboolean gst_core_audio_io_proc_stop (GstCoreAudio * core_audio); 42 43 AudioBufferList * buffer_list_alloc (UInt32 channels, UInt32 size, gboolean interleaved); 44 45 void buffer_list_free (AudioBufferList * list); 46 47 gboolean gst_core_audio_set_format (GstCoreAudio * core_audio, 48 AudioStreamBasicDescription format); 49 50 gboolean gst_core_audio_set_channel_layout (GstCoreAudio * core_audio, 51 gint channels, GstCaps * caps); 52 53 gboolean gst_core_audio_open_device (GstCoreAudio *core_audio, 54 OSType sub_type, 55 const gchar *adesc); 56 57 OSStatus gst_core_audio_render_notify (GstCoreAudio * core_audio, 58 AudioUnitRenderActionFlags * ioActionFlags, 59 const AudioTimeStamp * inTimeStamp, 60 unsigned int inBusNumber, 61 unsigned int inNumberFrames, 62 AudioBufferList * ioData); 63 64 AudioChannelLabel gst_audio_channel_position_to_core_audio (GstAudioChannelPosition position, int channel); 65 66 GstAudioChannelPosition gst_core_audio_channel_label_to_gst (AudioChannelLabel label, int channel, gboolean warn); 67