source: vbox/trunk/src/VBox/RDP/client/rdpsnd.h@ 30798

/*
   rdesktop: A Remote Desktop Protocol client.
   Sound infrastructure
   Copyright (C) Michael Gernoth 2006-2007

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

/*
 * Sun GPL Disclaimer: For the avoidance of doubt, except that if any license choice
 * other than GPL or LGPL is available it will apply instead, Sun elects to use only
 * the General Public License version 2 (GPLv2) at this time for any software where
 * a choice of GPL license versions is made available with the language indicating
 * that GPLv2 or any later version may be used, or where a choice of which version
 * of the GPL is applied is otherwise unspecified.
 */

struct audio_packet
{
        struct stream s;
        uint16 tick;
        uint8 index;

        struct timeval arrive_tv;
        struct timeval completion_tv;
};

struct audio_driver
{
        void (*add_fds) (int *n, fd_set * rfds, fd_set * wfds, struct timeval * tv);
        void (*check_fds) (fd_set * rfds, fd_set * wfds);

          RD_BOOL(*wave_out_open) (void);
        void (*wave_out_close) (void);
          RD_BOOL(*wave_out_format_supported) (RD_WAVEFORMATEX * pwfx);
          RD_BOOL(*wave_out_set_format) (RD_WAVEFORMATEX * pwfx);
        void (*wave_out_volume) (uint16 left, uint16 right);

          RD_BOOL(*wave_in_open) (void);
        void (*wave_in_close) (void);
          RD_BOOL(*wave_in_format_supported) (RD_WAVEFORMATEX * pwfx);
          RD_BOOL(*wave_in_set_format) (RD_WAVEFORMATEX * pwfx);
        void (*wave_in_volume) (uint16 left, uint16 right);

        char *name;
        char *description;
        int need_byteswap_on_be;
        int need_resampling;
        struct audio_driver *next;
};

/* Driver register functions */
struct audio_driver *alsa_register(char *options);
struct audio_driver *libao_register(char *options);
struct audio_driver *oss_register(char *options);
struct audio_driver *sgi_register(char *options);
struct audio_driver *sun_register(char *options);