mirror of
https://github.com/game-stop/veejay.git
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256 lines
7.4 KiB
C
256 lines
7.4 KiB
C
/*
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* LIBVJE - veejay fx library
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*
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* Copyright(C)2006 Niels Elburg <nelburg@looze.net>
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* See COPYING for software license and distribution details
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*/
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#define IS_LIVIDO_PLUGIN
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#include <livido.h>
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LIVIDO_PLUGIN
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#include "utils.h"
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#include "livido-utils.c"
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// 80 MB of memory for full pal 4 seconds delay
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#define MAXLEN (8*25)
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#define PLAY 0
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#define REC 1
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typedef struct
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{
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uint8_t *tmpy;
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uint8_t *tmpu;
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uint8_t *tmpv;
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int empty;
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int nframes;
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int pframes;
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int state;
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} bg_t;
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livido_init_f init_instance( livido_port_t *my_instance )
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{
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int w=0;
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int h=0;
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lvd_extract_dimensions( my_instance, "out_channels", &w, &h );
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bg_t *b = (bg_t*) livido_malloc( sizeof( bg_t ));
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livido_memset( b,0,sizeof(bg_t));
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b->tmpy = (uint8_t*) livido_malloc(sizeof(uint8_t) * w * h * MAXLEN);
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b->tmpu = (uint8_t*) livido_malloc(sizeof(uint8_t) * w * h * MAXLEN);
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b->tmpv = (uint8_t*) livido_malloc(sizeof(uint8_t) * w * h * MAXLEN);
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b->state = REC;
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int error = livido_property_set( my_instance, "PLUGIN_private", LIVIDO_ATOM_TYPE_VOIDPTR, 1, &b );
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return error;
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}
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livido_deinit_f deinit_instance( livido_port_t *my_instance )
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{
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bg_t *b = NULL;
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int error = livido_property_get( my_instance, "PLUGIN_private",
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0, &b );
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#ifdef STRICT_CHECKING
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assert( b != NULL );
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#endif
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livido_free( b->tmpy );
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livido_free( b->tmpu );
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livido_free( b->tmpv );
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livido_free( b );
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return LIVIDO_NO_ERROR;
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}
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livido_process_f process_instance( livido_port_t *my_instance, double timecode )
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{
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uint8_t *A[4] = {NULL,NULL,NULL,NULL};
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uint8_t *O[4]= {NULL,NULL,NULL,NULL};
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int palette[3];
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int w[3];
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int h[3];
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int i,j;
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int error = lvd_extract_channel_values( my_instance, "in_channels", 0, &w[0], &h[0], A, &palette[0] );
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if( error != LIVIDO_NO_ERROR )
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return LIVIDO_ERROR_HARDWARE; //@ error codes in livido flanky
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error = lvd_extract_channel_values( my_instance, "out_channels", 0, &w[2],&h[2], O,&palette[2] );
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if( error != LIVIDO_NO_ERROR )
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return LIVIDO_ERROR_HARDWARE; //@ error codes in livido flanky
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#ifdef STRICT_CHECKING
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assert( A[0] != NULL );
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assert( A[1] != NULL );
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assert( A[2] != NULL );
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assert( O[0] != NULL );
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assert( O[1] != NULL );
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assert( O[2] != NULL );
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assert( O[3] != NULL );
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#endif
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bg_t *b = NULL;
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error = livido_property_get( my_instance, "PLUGIN_private", 0, &b );
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#ifdef STRICT_CHECKING
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assert( error == NULL );
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#endif
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double activity = lvd_extract_param_number(
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my_instance,
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"in_parameters",
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0 );
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double activity_thres = lvd_extract_param_number(
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my_instance,
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"in_parameters",
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1 );
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const int len = w[0] * h[0];
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const int wid = w[0];
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const int hei = h[0];
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if( activity > activity_thres )
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b->state = REC;
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else
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b->state = PLAY;
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if( b->state == REC)
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{
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int offset = len * b->nframes;
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livido_memcpy( b->tmpy + offset , A[0], len );
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livido_memcpy( b->tmpu + offset , A[1], len );
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livido_memcpy( b->tmpv + offset, A[2], len );
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b->nframes ++;
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if( b->nframes >= MAXLEN )
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b->nframes = 0;
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livido_memcpy( O[0], A[0], len );
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livido_memcpy( O[1], A[1], len );
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livido_memcpy( O[2], A[2], len );
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}
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else
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{
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int offset = len * b->pframes;
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int roffset = len * b->nframes;
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livido_memcpy( b->tmpy + roffset , A[0], len );
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livido_memcpy( b->tmpu + roffset , A[1], len );
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livido_memcpy( b->tmpv + roffset, A[2], len );
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double scale_val = 255.0 / MAXLEN;
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unsigned int op1 = 0;
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unsigned int op0 = 0;
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double a = 40 + scale_val * (double)b->pframes;
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if( a >= 255.0 )
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a = 255.0;
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double opval = log( a / 0.01 ) / log ( 256.0 / 0.01 );
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op1 = ((unsigned int)(opval * 255.0)) - 60;
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if(op1 < 0 )
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op1 = 0;
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op0 = (255 - op1);
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// printf(" opval = %g A=%d, buf=%d, activity %g\n",opval,op0,op1, activity);
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for( i = 0; i < len ; i ++ )
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{
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O[0][i] = (op0 * A[0][i] + op1 * b->tmpy[offset+i]) >> 8;
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O[1][i] = (op0 * A[1][i] + op1 * b->tmpu[offset+i]) >> 8;
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O[2][i] = (op0 * A[2][i] + op1 * b->tmpv[offset+i]) >> 8;
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}
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b->pframes ++;
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if( b->pframes >= b->nframes )
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b->pframes = 0;
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b->nframes ++;
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if( b->nframes >= MAXLEN )
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b->nframes = 0;
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}
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return LIVIDO_NO_ERROR;
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}
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livido_port_t *livido_setup(livido_setup_t list[], int version)
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{
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LIVIDO_IMPORT(list);
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livido_port_t *port = NULL;
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livido_port_t *in_params[4];
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livido_port_t *in_chans[2];
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livido_port_t *out_chans[1];
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livido_port_t *info = NULL;
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livido_port_t *filter = NULL;
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info = livido_port_new( LIVIDO_PORT_TYPE_PLUGIN_INFO );
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port = info;
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livido_set_string_value( port, "maintainer", "Niels");
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livido_set_string_value( port, "version","1");
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filter = livido_port_new( LIVIDO_PORT_TYPE_FILTER_CLASS );
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livido_set_int_value( filter, "api_version", LIVIDO_API_VERSION );
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livido_set_voidptr_value( filter, "deinit_func", &deinit_instance );
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livido_set_voidptr_value( filter, "init_func", &init_instance );
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livido_set_voidptr_value( filter, "process_func", &process_instance );
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port = filter;
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livido_set_string_value( port, "name", "Activity GhostLoop");
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livido_set_string_value( port, "description", "Band loop ghosting with activity levels");
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livido_set_string_value( port, "author", "Niels Elburg");
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livido_set_int_value( port, "flags", 0);
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livido_set_string_value( port, "license", "GPL2");
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livido_set_int_value( port, "version", 1);
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int palettes0[] = {
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LIVIDO_PALETTE_YUV444P,
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0
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};
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in_params[0] = livido_port_new( LIVIDO_PORT_TYPE_PARAMETER_TEMPLATE );
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port = in_params[0];
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livido_set_string_value(port, "name", "Activity level" );
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livido_set_string_value(port, "kind", "NUMBER" );
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livido_set_double_value( port, "min", 0.0 );
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livido_set_double_value( port, "max", 1.0 );
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livido_set_double_value( port, "default", 0.0 );
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livido_set_string_value( port, "description" ,"Activity level");
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in_params[1] = livido_port_new( LIVIDO_PORT_TYPE_PARAMETER_TEMPLATE );
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port = in_params[1];
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livido_set_string_value(port, "name", "Activity Threshold" );
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livido_set_string_value(port, "kind", "NUMBER" );
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livido_set_double_value( port, "min", 0.0 );
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livido_set_double_value( port, "max", 1.0 );
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livido_set_double_value( port, "default", 0.5 );
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livido_set_string_value( port, "description" ,"Activity Threshold");
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in_chans[0] = livido_port_new( LIVIDO_PORT_TYPE_CHANNEL_TEMPLATE );
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port = in_chans[0];
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livido_set_string_value( port, "name", "Channel A");
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livido_set_int_array( port, "palette_list", 1, palettes0);
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livido_set_int_value( port, "flags", 0);
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out_chans[0] = livido_port_new( LIVIDO_PORT_TYPE_CHANNEL_TEMPLATE );
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port = out_chans[0];
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livido_set_string_value( port, "name", "Output Channel");
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livido_set_int_array( port, "palette_list", 1, palettes0);
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livido_set_int_value( port, "flags", 0);
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livido_set_portptr_array( filter, "in_channel_templates", 1 , in_chans );
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livido_set_portptr_array( filter, "in_parameter_templates",2, in_params );
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livido_set_portptr_array( filter, "out_parameter_templates",0, NULL );
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livido_set_portptr_array( filter, "out_channel_templates", 1, out_chans );
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livido_set_portptr_value(info, "filters", filter);
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return info;
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}
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