cinelerra-5.0/cinelerra/keyframe.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2010 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "bchash.h"
  23 #include "bcsignals.h"
  24 #include "clip.h"
  25 #include "cstrdup.h"
  26 #include "filexml.h"
  27 #include "format.inc"
  28 #include "keyframe.h"
  29
  30 #include <stdio.h>
  31 #include <string.h>
  32
  33
  34
  35 KeyFrame::KeyFrame()
  36  : Auto()
  37 {
  38         data[0] = 0;
  39 }
  40
  41 KeyFrame::KeyFrame(EDL *edl, KeyFrames *autos)
  42  : Auto(edl, (Autos*)autos)
  43 {
  44         data[0] = 0;
  45 }
  46
  47 KeyFrame::~KeyFrame()
  48 {
  49 }
  50
  51 void KeyFrame::load(FileXML *file)
  52 {
  53 //printf("KeyFrame::load 1\n");
  54 // Shouldn't be necessary
  55 //      position = file->tag.get_property((char*)"POSITION", position);
  56 //printf("KeyFrame::load 1\n");
  57
  58         int len = file->read_data_until((char*)"/KEYFRAME", data, MESSAGESIZE-1);
  59         data[len] = 0;
  60 //printf("KeyFrame::load 2 data=\n%s\nend of data\n", data);
  61 }
  62
  63 void KeyFrame::copy(int64_t start, int64_t end, FileXML *file, int default_auto)
  64 {
  65 //printf("KeyFrame::copy 1 %d\n%s\n", position - start, data);
  66         file->tag.set_title((char*)"KEYFRAME");
  67         if(default_auto)
  68                 file->tag.set_property((char*)"POSITION", 0);
  69         else
  70                 file->tag.set_property((char*)"POSITION", position - start);
  71 // default_auto converts a default auto to a normal auto
  72         if(is_default && !default_auto)
  73                 file->tag.set_property((char*)"DEFAULT", 1);
  74         file->append_tag();
  75 // Can't put newlines in because these would be reimported and resaved along
  76 // with new newlines.
  77 //      file->append_newline();
  78
  79         file->append_data(data, strlen(data));
  80 //      file->append_newline();
  81
  82         file->tag.set_title((char*)"/KEYFRAME");
  83         file->append_tag();
  84         file->append_newline();
  85 }
  86
  87
  88 void KeyFrame::copy_from(Auto *that)
  89 {
  90         copy_from((KeyFrame*)that);
  91 }
  92
  93 void KeyFrame::copy_from(KeyFrame *that)
  94 {
  95         Auto::copy_from(that);
  96         KeyFrame *keyframe = (KeyFrame*)that;
  97         strcpy(data, keyframe->data);
  98         position = keyframe->position;
  99 }
 100
 101 void KeyFrame::copy_data(KeyFrame *src)
 102 {
 103         strcpy(data, src->data);
 104 }
 105
 106 int KeyFrame::identical(KeyFrame *src)
 107 {
 108         return !strcasecmp(src->data, data);
 109 }
 110
 111
 112 void KeyFrame::get_contents(BC_Hash *ptr, char **text, char **extra)
 113 {
 114         FileXML input;
 115         input.set_shared_input(data, strlen(data));
 116         int result = 0;
 117         char *this_text = 0;
 118         char *this_extra = 0;
 119         while(!result)
 120         {
 121                 result = input.read_tag();
 122                 if(!result)
 123                 {
 124                         for(int i = 0; i < input.tag.properties.size(); i++)
 125                         {
 126                                 const char *key = input.tag.get_property_text(i);
 127                                 const char *value = input.tag.get_property(key);
 128                                 ptr->update(key, value);
 129                         }
 130
 131 // Read any text after tag
 132                         this_text = input.read_text();
 133                         (*text) = cstrdup(this_text);
 134
 135 // Read remaining data
 136                         this_extra = input.get_data();
 137                         (*extra) = cstrdup(this_extra);
 138                         break;
 139                 }
 140         }
 141 }
 142
 143 void KeyFrame::update_parameter(BC_Hash *params,
 144         const char *text,
 145         char *extra)
 146 {
 147         FileXML output;
 148         FileXML input;
 149         input.set_shared_input(get_data(), strlen(get_data()));
 150         int result = 0;
 151         BC_Hash this_params;
 152         char *this_text = 0;
 153         char *this_extra = 0;
 154         int got_it = 0;
 155
 156 // printf("KeyFrame::update_parameter %d %p %p %p \n",
 157 // __LINE__,
 158 // params,
 159 // text,
 160 // extra);
 161
 162
 163         get_contents(&this_params, &this_text, &this_extra);
 164
 165
 166 // printf("KeyFrame::update_parameter %d params=%p\n", __LINE__, params);
 167 // if(params) params->dump();
 168 // printf("KeyFrame::update_parameter %d\n", __LINE__);
 169 // this_params.dump();
 170
 171 // Get first tag
 172         while(!result)
 173         {
 174                 result = input.read_tag();
 175                 if(!result)
 176                 {
 177 // Replicate first tag
 178                         output.tag.set_title(input.tag.get_title());
 179
 180 // Get each parameter from this keyframe
 181                         for(int i = 0; i < this_params.size(); i++)
 182                         {
 183                                 const char *key = this_params.get_key(i);
 184                                 const char *value = this_params.get_value(i);
 185
 186 // Get new value from the params argument
 187                                 got_it = 1;
 188                                 if(params)
 189                                 {
 190                                         got_it = 0;
 191                                         for(int j = 0; j < params->size(); j++)
 192                                         {
 193                                                 if(!strcmp(params->get_key(j), key))
 194                                                 {
 195                                                         got_it = 1;
 196                                                         value = params->get_value(j);
 197                                                         break;
 198                                                 }
 199                                         }
 200                                 }
 201
 202 // Set parameter in output.
 203                                 output.tag.set_property(key, value);
 204                         }
 205
 206 // Get each parameter from params argument
 207                         if(params)
 208                         {
 209                                 for(int i = 0; i < params->size(); i++)
 210                                 {
 211                                         const char *key = params->get_key(i);
 212 //printf("KeyFrame::update_parameter %d %s\n", __LINE__, key);
 213
 214                                         got_it = 0;
 215                                         for(int j = 0; j < this_params.size(); j++)
 216                                         {
 217                                                 if(!strcmp(this_params.get_key(j), key))
 218                                                 {
 219                                                         got_it = 1;
 220                                                         break;
 221                                                 }
 222                                         }
 223 //printf("KeyFrame::update_parameter %d %s\n", __LINE__, key);
 224
 225 // If it wasn't found in output, set new parameter in output.
 226                                         if(!got_it)
 227                                         {
 228                                                 output.tag.set_property(key, params->get_value(i));
 229 //printf("KeyFrame::update_parameter %d %s\n", __LINE__, key);
 230                                         }
 231                                 }
 232                         }
 233
 234
 235
 236 // Append parameters to output
 237                         output.append_tag();
 238
 239 // Write anonymous text & duplicate the rest
 240                         if(text)
 241                         {
 242                                 output.append_text(text);
 243                         }
 244                         else
 245                         {
 246                                 output.append_text(this_text);
 247                         }
 248
 249 // Append remaining previous data
 250                         if(extra)
 251                         {
 252                                 output.append_text(extra);
 253                         }
 254                         else
 255                         {
 256                                 output.append_text(this_extra);
 257                         }
 258
 259 // Move output to input
 260                         output.terminate_string();
 261                         strcpy(this->data, output.string());
 262                         break;
 263                 }
 264         }
 265
 266         delete [] this_text;
 267         delete [] this_extra;
 268 }
 269
 270
 271 void KeyFrame::get_diff(KeyFrame *src,
 272         BC_Hash **params,
 273         char **text,
 274         char **extra)
 275 {
 276         const int debug = 0;
 277         FileXML input;
 278         input.set_shared_input(data, strlen(data));
 279         BC_Hash this_params;
 280         char *this_text = 0;
 281         char *this_extra = 0;
 282         BC_Hash src_parameters;
 283         char *src_text = 0;
 284         char *src_extra = 0;
 285
 286         get_contents(&this_params, &this_text, &this_extra);
 287         src->get_contents(&src_parameters, &src_text, &src_extra);
 288
 289 if(debug) printf("KeyFrame::get_diff %d %d %d\n",
 290 __LINE__,
 291 this_params.size(),
 292 src_parameters.size());
 293
 294 // Capture changed parameters
 295         char this_value[BCTEXTLEN];
 296         for(int i = 0; i < MIN(this_params.size(), src_parameters.size()); i++)
 297         {
 298                 const char *src_key = src_parameters.get_key(i);
 299                 const char *src_value = src_parameters.get_value(i);
 300                 this_value[0] = 0;
 301                 this_params.get(src_key, this_value);
 302 if(debug) printf("KeyFrame::get_diff %d %s %s %s\n",
 303 __LINE__,
 304 src_key,
 305 src_value,
 306 this_value);
 307 // Capture values which differ
 308                 if(strcmp(src_value, this_value))
 309                 {
 310                         if(!(*params)) (*params) = new BC_Hash;
 311                         (*params)->update(src_key, src_value);
 312                 }
 313         }
 314
 315
 316 // Capture text which differs
 317         if( !this_text || strcmp(this_text, src_text))
 318                 (*text) = cstrdup(src_text);
 319
 320         if( !this_extra || strcmp(this_extra, src_extra))
 321                 (*extra) = cstrdup(src_extra);
 322
 323
 324         delete [] this_text;
 325         delete [] this_extra;
 326         delete [] src_text;
 327         delete [] src_extra;
 328 }
 329
 330 int KeyFrame::operator==(Auto &that)
 331 {
 332         return identical((KeyFrame*)&that);
 333 }
 334
 335 int KeyFrame::operator==(KeyFrame &that)
 336 {
 337         return identical(&that);
 338 }
 339
 340 char* KeyFrame::get_data()
 341 {
 342         return data;
 343 }
 344
 345 void KeyFrame::set_data(char *data)
 346 {
 347         strcpy(this->data, data);
 348 }
 349
 350
 351 void KeyFrame::dump(FILE *fp)
 352 {
 353         fprintf(fp,"     position: " _LD "\n", position);
 354         fprintf(fp,"     data: %s\n", data);
 355 }