visual.h

VLC Player Source Code

/*****************************************************************************
 * visual.h : Header for the visualisation system
 *****************************************************************************
 * Copyright (C) 2002 the VideoLAN team
 * $Id$
 *
 * Authors: Clément Stenac <[e-mail]>
 *
 * 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.
 *****************************************************************************/

typedef struct visual_effect_t
{
    char *     psz_name;    /* Filter name*/

    int         (*pf_run)( struct visual_effect_t * , aout_instance_t *,
                           aout_buffer_t *, picture_t *);
    void *     p_data; /* The effect stores whatever it wants here */
    int        i_width;
    int        i_height;
    char *     psz_args;
    int        i_nb_chans;
} visual_effect_t ;


/*****************************************************************************
 * aout_filter_sys_t: visualizer audio filter method descriptor
 *****************************************************************************
 * This structure is part of the audio filter descriptor.
 * It describes some visualizer specific variables.
 *****************************************************************************/
typedef struct aout_filter_sys_t
{
    vout_thread_t   *p_vout;

    int             i_width;
    int             i_height;

    int             i_effect;
    visual_effect_t **effect;
} aout_filter_sys_t;

/* Prototypes */
int scope_Run
        (visual_effect_t * , aout_instance_t *, aout_buffer_t *, picture_t *);
int vuMeter_Run
        (visual_effect_t * , aout_instance_t *, aout_buffer_t *, picture_t *);
int dummy_Run
        (visual_effect_t * , aout_instance_t *, aout_buffer_t *, picture_t *);
int random_Run
        (visual_effect_t * , aout_instance_t *, aout_buffer_t *, picture_t *);
int spectrum_Run
        (visual_effect_t * , aout_instance_t *, aout_buffer_t *, picture_t *);
int spectrometer_Run
        (visual_effect_t * , aout_instance_t *, aout_buffer_t *, picture_t *);

/* Default vout size */
#define VOUT_WIDTH 533
#define VOUT_HEIGHT 400