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Diffstat (limited to 'modules/pdp_spigot.c')
| -rw-r--r-- | modules/pdp_spigot.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/modules/pdp_spigot.c b/modules/pdp_spigot.c new file mode 100644 index 0000000..3b79bb1 --- /dev/null +++ b/modules/pdp_spigot.c @@ -0,0 +1,168 @@ +/* + * Pure Data Packet module. + * Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org> + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +/* This object is video packet routing utility + * Written by Yves Degoyon ( ydegoyon@free.fr ) + */ + + +#include "pdp.h" +#include <math.h> + +static char *pdp_spigot_version = "pdp_spigot: version 0.1, a video packets routing utility"; + +typedef struct pdp_spigot_struct +{ + t_object x_obj; + t_float x_f; + + t_outlet *x_outlet0; + t_outlet *x_outlet1; + t_int x_vwidth; + t_int x_vheight; + t_int x_vsize; + + t_int x_packet0; + t_int x_toggle; + +} t_pdp_spigot; + +static void pdp_spigot_toggle(t_pdp_spigot *x, t_floatarg ftoggle ) +{ + if ( ( ftoggle == 0 ) || ( ftoggle == 1 ) ) + { + x->x_toggle = ftoggle; + } +} + +static void pdp_spigot_process_packet(t_pdp_spigot *x) +{ + t_pdp *header = pdp_packet_header(x->x_packet0); + short int *data = (short int *)pdp_packet_data(x->x_packet0); + t_pdp *newheader = 0; + short int *newdata = 0; + t_int newpacket = -1, i; + + x->x_vwidth = header->info.image.width; + x->x_vheight = header->info.image.height; + x->x_vsize = x->x_vwidth*x->x_vheight; + + return; +} + +static void pdp_spigot_process(t_pdp_spigot *x) +{ + int encoding; + t_pdp *header = 0; + + /* check if image data packets are compatible */ + if ( (header = pdp_packet_header(x->x_packet0)) + && (PDP_IMAGE == header->type)){ + + /* pdp_spigot_process inputs and write into active inlet */ + switch(pdp_packet_header(x->x_packet0)->info.image.encoding) + { + + case PDP_IMAGE_YV12: + pdp_spigot_process_packet(x); + break; + + case PDP_IMAGE_GREY: + // should write something to handle these one day + // but i don't use this mode + break; + + default: + /* don't know the type, so dont pdp_spigot_process */ + break; + + } + } + + /* propagate if valid */ + if(x->x_packet0 != -1){ + if ( x->x_toggle ) + { + pdp_packet_pass_if_valid(x->x_outlet1, &x->x_packet0); + } + else + { + pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0); + } + pdp_packet_mark_unused(x->x_packet0); + x->x_packet0 = -1; + } + +} + +static void pdp_spigot_input_0(t_pdp_spigot *x, t_symbol *s, t_floatarg f) +{ + if (s == gensym("register_rw")){ + pdp_packet_mark_unused(x->x_packet0); + x->x_packet0 = pdp_packet_convert_rw((int)f, pdp_gensym("image/YCrCb/*") ); + } + else if (s == gensym("process")){ + pdp_spigot_process(x); + } +} + +static void pdp_spigot_free(t_pdp_spigot *x) +{ + pdp_packet_mark_unused(x->x_packet0); +} + +t_class *pdp_spigot_class; + +void *pdp_spigot_new(void) +{ + int i; + + t_pdp_spigot *x = (t_pdp_spigot *)pd_new(pdp_spigot_class); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("toggle")); + + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + x->x_outlet1 = outlet_new(&x->x_obj, &s_anything); + + x->x_packet0 = -1; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_spigot_setup(void) +{ +// post( pdp_spigot_version ); + pdp_spigot_class = class_new(gensym("pdp_spigot"), (t_newmethod)pdp_spigot_new, + (t_method)pdp_spigot_free, sizeof(t_pdp_spigot), 0, A_NULL); + + class_addmethod(pdp_spigot_class, (t_method)pdp_spigot_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_spigot_class, (t_method)pdp_spigot_toggle, gensym("toggle"), A_DEFFLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif |