1 /* 2 * Copyright (C) 2008 Ole André Vadla Ravnås <ole.andre.ravnas@tandberg.com> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef __GST_WASAPI_SINK_H__ 21 #define __GST_WASAPI_SINK_H__ 22 23 #include "gstwasapiutil.h" 24 25 G_BEGIN_DECLS 26 #define GST_TYPE_WASAPI_SINK \ 27 (gst_wasapi_sink_get_type ()) 28 #define GST_WASAPI_SINK(obj) \ 29 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_WASAPI_SINK, GstWasapiSink)) 30 #define GST_WASAPI_SINK_CLASS(klass) \ 31 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_WASAPI_SINK, GstWasapiSinkClass)) 32 #define GST_IS_WASAPI_SINK(obj) \ 33 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_WASAPI_SINK)) 34 #define GST_IS_WASAPI_SINK_CLASS(klass) \ 35 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_WASAPI_SINK)) 36 typedef struct _GstWasapiSink GstWasapiSink; 37 typedef struct _GstWasapiSinkClass GstWasapiSinkClass; 38 39 struct _GstWasapiSink 40 { 41 GstAudioSink parent; 42 43 GstMMDeviceEnumerator *enumerator; 44 45 IMMDevice *device; 46 IAudioClient *client; 47 IAudioRenderClient *render_client; 48 HANDLE event_handle; 49 HANDLE cancellable; 50 /* Client was reset, so it needs to be started again */ 51 gboolean client_needs_restart; 52 53 /* Actual size of the allocated buffer */ 54 guint buffer_frame_count; 55 /* The mix format that wasapi prefers in shared mode */ 56 WAVEFORMATEX *mix_format; 57 /* The probed caps that we can accept */ 58 GstCaps *cached_caps; 59 /* The channel positions in the data to be written to the device we 60 * will pass this to GstAudioRingbuffer so it can to it translate 61 * from the native GStreamer channel layout. */ 62 GstAudioChannelPosition *positions; 63 64 /* properties */ 65 gint role; 66 gint sharemode; 67 gboolean mute; 68 gboolean low_latency; 69 gboolean try_audioclient3; 70 wchar_t *device_strid; 71 }; 72 73 struct _GstWasapiSinkClass 74 { 75 GstAudioSinkClass parent_class; 76 }; 77 78 GType gst_wasapi_sink_get_type (void); 79 80 G_END_DECLS 81 #endif /* __GST_WASAPI_SINK_H__ */ 82