visual.h 2.95 KB
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/*****************************************************************************
 * visual.h : Header for the visualisation system
 *****************************************************************************
 * Copyright (C) 2002 VideoLAN
 * $Id: visual.h,v 1.1 2003/08/19 21:20:00 zorglub Exp $
 *
 * Authors: Clment Stenac <zorglub@via.ecp.fr>
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>                                      /* malloc(), free() */
#include <string.h>                                              /* strdup() */
#include <errno.h>

#include <vlc/vlc.h>
#include <vlc/vout.h>

#include "audio_output.h"

#include "aout_internal.h"

/*****************************************************************************
 * 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 visual_effect_t
{
    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 */
    struct     visual_effect_t * p_next;
    int        i_width;
    int        i_height;
    char *     psz_args; 
} visual_effect_t ;


struct aout_filter_sys_t
{
    vout_thread_t   *p_vout;
    visual_effect_t *p_first_effect;
    int             i_width;
    int             i_height;
};

/* Prototypes */
int scope_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 *);


/* Default vout size */       
#define VOUT_WIDTH 320
#define VOUT_HEIGHT 240