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127 lines
3.5 KiB
C
127 lines
3.5 KiB
C
/*
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* Copyright (C) 2002-2004 Niels Elburg <nelburg@looze.net>
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*
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* This program is free software you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef VJE_H
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#define VJE_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <string.h>
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#include <libvjmem/vjmem.h>
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#define MAX_EFFECTS 103
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#define PARAM_WIDTH (1<<0x2)
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#define PARAM_HEIGHT (1<<0x3)
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#define PARAM_FADER (1<<0x1)
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// keyframe-able parameter sets
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typedef struct
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{
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int type;
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int tmp[10];
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int ref;
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} vjp_kf;
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typedef struct VJFrame_t
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{
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uint8_t *data[3];
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int uv_len;
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int len;
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int uv_width;
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int uv_height;
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int shift_v;
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int shift_h;
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} VJFrame;
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typedef struct VJFrameInfo_t
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{
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int width;
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int height;
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float fps;
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int64_t timecode;
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uint8_t inverse;
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} VJFrameInfo;
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typedef struct vj_effect_t {
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char *description; // name of effect
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int num_params; // num parameters (optionals dont exist)
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char **param_description; // unused.
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int *defaults;
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int *flags; // parameter flags
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int *limits[2]; // [0] = min, [1] = max
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int extra_frame; // effect requires a secundary frame
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int sub_format; // if set to '1', data must be in 4:4:4 !!!
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int has_user; // has private data?
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int static_bg; // unused
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int has_help; // unused
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void *user_data; // private effect data
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} vj_effect;
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// initialize library
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extern void vj_effect_initialize(int width, int height);
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extern void vj_effect_shutdown();
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// convert effect number to internal num
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extern int vj_effect_real_to_sequence(int effect_id);
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extern int vj_effect_get_real_id( int entry_num );
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// get effect information
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extern char *vj_effect_get_description(int effect_id);
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extern char *vj_effect_get_param_description(int effect_id, int param_nr);
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extern int vj_effect_get_extra_frame(int effect_id);
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extern int vj_effect_get_num_params(int effect_id);
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extern int vj_effect_get_default(int effect_id, int param_nr);
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extern int vj_effect_get_min_limit(int effect_id, int param_nr);
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extern int vj_effect_get_max_limit(int effect_id, int param_nr);
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extern int vj_effect_valid_value(int effect_id, int param_nr, int value);
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extern int vj_effect_get_subformat(int effect_id);
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extern int vj_effect_has_cb(int effect_id);
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extern int vj_effect_is_valid(int effect_id);
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extern int vj_effect_get_summary(int entry, char *dst);
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// activate an effect
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extern int vj_effect_activate(int e);
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extern int vj_effect_deactivate(int e);
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extern int vj_effect_initialized(int e);
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extern int vj_effect_get_min_i();
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extern int vj_effect_get_max_i();
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extern int vj_effect_get_min_v();
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extern int vj_effect_get_max_v();
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extern int vj_effect_get_by_name(char *name);
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extern int vj_effect_apply( VJFrame **frames, VJFrameInfo *frameinfo, vjp_kf *kf, int selector, int *arguments );
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extern int vj_effect_prepare( VJFrame *frame, VJFrameInfo *frameinfo, int selector);
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extern void vj_effect_dump(void);
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// see veejay/vj-perform 'apply_first' for an example on how to use this.
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#endif
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