1 /* GStreamer 2 * Copyright (C) 2020 Seungha Yang <seungha@centricular.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_WASAPI2_UTIL_H__ 21 #define __GST_WASAPI2_UTIL_H__ 22 23 #include <gst/gst.h> 24 #include <gst/audio/audio.h> 25 #include <windows.h> 26 #include <initguid.h> 27 #include <audioclient.h> 28 29 G_BEGIN_DECLS 30 31 /* Static Caps shared between source, sink, and device provider */ 32 #define GST_WASAPI2_STATIC_CAPS "audio/x-raw, " \ 33 "format = (string) " GST_AUDIO_FORMATS_ALL ", " \ 34 "layout = (string) interleaved, " \ 35 "rate = " GST_AUDIO_RATE_RANGE ", " \ 36 "channels = " GST_AUDIO_CHANNELS_RANGE 37 38 #define GST_WASAPI2_CLEAR_COM(obj) G_STMT_START { \ 39 if (obj) { \ 40 (obj)->Release (); \ 41 (obj) = NULL; \ 42 } \ 43 } G_STMT_END 44 45 gboolean _gst_wasapi2_result (HRESULT hr, 46 GstDebugCategory * cat, 47 const gchar * file, 48 const gchar * function, 49 gint line); 50 51 #define gst_wasapi2_result(result) \ 52 _gst_wasapi2_result (result, GST_CAT_DEFAULT, __FILE__, GST_FUNCTION, __LINE__) 53 54 guint64 gst_wasapi2_util_waveformatex_to_channel_mask (WAVEFORMATEX * format, 55 GstAudioChannelPosition ** out_position); 56 57 const gchar * gst_wasapi2_util_waveformatex_to_audio_format (WAVEFORMATEX * format); 58 59 gboolean gst_wasapi2_util_parse_waveformatex (WAVEFORMATEX * format, 60 GstCaps * template_caps, 61 GstCaps ** out_caps, 62 GstAudioChannelPosition ** out_positions); 63 64 gchar * gst_wasapi2_util_get_error_message (HRESULT hr); 65 66 gboolean gst_wasapi2_can_automatic_stream_routing (void); 67 68 G_END_DECLS 69 70 #endif /* __GST_WASAPI_UTIL_H__ */ 71