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- /*****************************************************************************
- * vlc_aout_mixer.h : audio output mixer interface
- *****************************************************************************
- * Copyright (C) 2002-2009 the VideoLAN team
- * $Id: 5fd2ce0953dc8814fc6e7cfa921503fb60bb917c $
- *
- * Authors: Christophe Massiot <massiot@via.ecp.fr>
- * Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
-
- #ifndef VLC_AOUT_MIXER_H
- #define VLC_AOUT_MIXER_H 1
-
- /**
- * \file
- * This file defines functions, structures and macros for audio output mixer object
- */
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- //#include <vlc_aout.h>
-
- /* */
- typedef struct aout_mixer_sys_t aout_mixer_sys_t;
- typedef struct aout_mixer_t aout_mixer_t;
-
- typedef struct {
- /* Is the input to be ignored while mixing */
- bool is_invalid;
-
- /* */
- aout_fifo_t fifo;
-
- /* Pointer on the first byte of data to mix.
- *
- * It points in the first buffer of fifo
- */
- uint8_t *begin;
-
- /* Software multiplier */
- float multiplier;
- } aout_mixer_input_t;
-
- /**
- * audio output mixer
- */
- struct aout_mixer_t {
- VLC_COMMON_MEMBERS
-
- /* Module */
- module_t *module;
-
- /* Mixer format.
- *
- * You cannot modify it.
- */
- audio_sample_format_t fmt;
-
- /* Mixer output buffer allocation method.
- *
- * You can override it in the open function only.
- */
- aout_alloc_t allocation;
-
- /* Multiplier used to raise or lower the volume of the sound in
- * software.
- */
- float multiplier;
-
- /* Array of mixer inputs */
- unsigned input_count;
- aout_mixer_input_t **input;
-
- /* Mix input into the given buffer (mandatory) */
- void (*mix)(aout_mixer_t *, aout_buffer_t *);
-
- /* Private place holder for the aout_mixer_t module (optional)
- *
- * A module is free to use it as it wishes.
- */
- aout_mixer_sys_t *sys;
- };
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif
-