win_wasapi.h

 
#ifndef FREERDP_SERVER_SHADOW_WIN_WASAPI_H
#define FREERDP_SERVER_SHADOW_WIN_WASAPI_H
 
/* WASAPI loopback capture, kept apart from FreeRDP's audio headers: the
 * Windows ones (mmreg.h) define macros that clash with them */
 
#include <winpr/wtypes.h>
#include <winpr/stream.h>
 
/* What the capture delivers: 16-bit stereo at 48 kHz */
#define WIN_WASAPI_RATE 48000
#define WIN_WASAPI_CHANNELS 2
#define WIN_WASAPI_FRAME_BYTES 4
 
typedef struct win_wasapi_loopback winWasapiLoopback;
 
#ifdef __cplusplus
extern "C"
{
#endif
 
  /* Starts loopback capture on the default render endpoint: what the
   * speakers play. The calling thread has COM initialized. log is FALSE
   * while retrying after a failure that was reported. */
  WINPR_ATTR_NODISCARD winWasapiLoopback* win_wasapi_loopback_open(BOOL log);
  void win_wasapi_loopback_close(winWasapiLoopback* loopback);
 
  /* Appends what was captured since the last call to s. FALSE when the
   * capture stopped: the endpoint went away (unplugged, the default
   * changed, the audio service stopped) or memory ran out. */
  WINPR_ATTR_NODISCARD BOOL win_wasapi_loopback_read(winWasapiLoopback* loopback, wStream* s);
 
#ifdef __cplusplus
}
#endif
 
#endif /* FREERDP_SERVER_SHADOW_WIN_WASAPI_H */