2025-08-05 13:40:28 +00:00

137 lines
4.2 KiB
C++

/* GStreamer
* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_WASAPI2_UTIL_H__
#define __GST_WASAPI2_UTIL_H__
#include <gst/gst.h>
#include <gst/audio/audio.h>
#include <windows.h>
#include <initguid.h>
#include <audioclient.h>
#include <endpointvolume.h>
#include <string.h>
#include <mmdeviceapi.h>
G_BEGIN_DECLS
/* Static Caps shared between source, sink, and device provider */
#define GST_WASAPI2_STATIC_CAPS "audio/x-raw, " \
"format = (string) " GST_AUDIO_FORMATS_ALL ", " \
"layout = (string) interleaved, " \
"rate = " GST_AUDIO_RATE_RANGE ", " \
"channels = " GST_AUDIO_CHANNELS_RANGE
#define GST_WASAPI2_CLEAR_COM(obj) G_STMT_START { \
if (obj) { \
(obj)->Release (); \
(obj) = NULL; \
} \
} G_STMT_END
gboolean _gst_wasapi2_result (HRESULT hr,
GstDebugCategory * cat,
const gchar * file,
const gchar * function,
gint line);
#ifndef GST_DISABLE_GST_DEBUG
#define gst_wasapi2_result(result) \
_gst_wasapi2_result (result, GST_CAT_DEFAULT, __FILE__, GST_FUNCTION, __LINE__)
#else
#define gst_wasapi2_result(result) \
_gst_wasapi2_result (result, NULL, __FILE__, GST_FUNCTION, __LINE__)
#endif
typedef enum
{
GST_WASAPI2_ENDPOINT_CLASS_CAPTURE = 0,
GST_WASAPI2_ENDPOINT_CLASS_RENDER,
GST_WASAPI2_ENDPOINT_CLASS_LOOPBACK_CAPTURE,
GST_WASAPI2_ENDPOINT_CLASS_INCLUDE_PROCESS_LOOPBACK_CAPTURE,
GST_WASAPI2_ENDPOINT_CLASS_EXCLUDE_PROCESS_LOOPBACK_CAPTURE,
} GstWasapi2EndpointClass;
static inline gboolean
gst_wasapi2_is_loopback_class (GstWasapi2EndpointClass device_class)
{
switch (device_class) {
case GST_WASAPI2_ENDPOINT_CLASS_LOOPBACK_CAPTURE:
return TRUE;
default:
break;
}
return FALSE;
}
static inline gboolean
gst_wasapi2_is_process_loopback_class (GstWasapi2EndpointClass device_class)
{
switch (device_class) {
case GST_WASAPI2_ENDPOINT_CLASS_INCLUDE_PROCESS_LOOPBACK_CAPTURE:
case GST_WASAPI2_ENDPOINT_CLASS_EXCLUDE_PROCESS_LOOPBACK_CAPTURE:
return TRUE;
default:
break;
}
return FALSE;
}
guint64 gst_wasapi2_util_waveformatex_to_channel_mask (WAVEFORMATEX * format,
GstAudioChannelPosition ** out_position);
const gchar * gst_wasapi2_util_waveformatex_to_audio_format (WAVEFORMATEX * format);
gboolean gst_wasapi2_util_parse_waveformatex (WAVEFORMATEX * format,
GstCaps * template_caps,
GstCaps ** out_caps,
GstAudioChannelPosition ** out_positions);
gchar * gst_wasapi2_util_get_error_message (HRESULT hr);
gboolean gst_wasapi2_can_automatic_stream_routing (void);
gboolean gst_wasapi2_can_process_loopback (void);
WAVEFORMATEX * gst_wasapi2_get_default_mix_format (void);
const wchar_t * gst_wasapi2_get_default_device_id_wide (EDataFlow flow);
const char * gst_wasapi2_get_default_device_id (EDataFlow flow);
const gchar * gst_wasapi2_data_flow_to_string (EDataFlow flow);
const gchar * gst_wasapi2_role_to_string (ERole role);
G_END_DECLS
#ifdef __cplusplus
#include <mutex>
#define GST_WASAPI2_CALL_ONCE_BEGIN \
static std::once_flag __once_flag; \
std::call_once (__once_flag, [&]()
#define GST_WASAPI2_CALL_ONCE_END )
#endif
#endif /* __GST_WASAPI_UTIL_H__ */