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/*****************************************************************************
* visual.h : Header for the visualisation system
*****************************************************************************
* Copyright (C) 2002-2009 the VideoLAN team
* $Id: d1b20c42bfcb32365d4fa00438306f98cbb6ce88 $
*
* Authors: Clément 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
typedef struct visual_effect_t
{
const char *psz_name; /* Filter name*/
int (*pf_run)( struct visual_effect_t * , vlc_object_t *,
const block_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;
/* Channels index */
int i_idx_left;
int i_idx_right;
} visual_effect_t ;
typedef struct spectrum_data
{
int *peaks;
int *prev_heights;
unsigned i_prev_nb_samples;
int16_t *p_prev_s16_buff;
} spectrum_data;
typedef struct
{
int *peaks;
unsigned i_prev_nb_samples;
int16_t *p_prev_s16_buff;
} spectrometer_data;
/*****************************************************************************
* aout_filter_sys_t: visualizer audio filter method descriptor
*****************************************************************************
* This structure is part of the audio filter descriptor.
* It describes some visualizer specific variables.
*****************************************************************************/
struct filter_sys_t
{
vout_thread_t *p_vout;
int i_width;
int i_height;
int i_effect;
visual_effect_t **effect;
};
/* Prototypes */
int scope_Run
(visual_effect_t * , vlc_object_t *, const block_t *, picture_t *);
int vuMeter_Run
(visual_effect_t * , vlc_object_t *, const block_t *, picture_t *);
int dummy_Run
(visual_effect_t * , vlc_object_t *, const block_t *, picture_t *);
int random_Run
(visual_effect_t * , vlc_object_t *, const block_t *, picture_t *);
int spectrum_Run
(visual_effect_t * , vlc_object_t *, const block_t *, picture_t *);
int spectrometer_Run
(visual_effect_t * , vlc_object_t *, const block_t *, picture_t *);
/* Default vout size */
#define VOUT_WIDTH 800
#define VOUT_HEIGHT 640
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