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