cinelerra/arender.C

   1 #include "amodule.h"
   2 #include "arender.h"
   3 #include "atrack.h"
   4 #include "atrack.h"
   5 #include "audiodevice.h"
   6 #include "auto.h"
   7 #include "autos.h"
   8 #include "cache.h"
   9 #include "condition.h"
  10 #include "edit.h"
  11 #include "edl.h"
  12 #include "edlsession.h"
  13 #include "levelwindow.h"
  14 #include "mainsession.h"
  15 #include "playabletracks.h"
  16 #include "playbackengine.h"
  17 #include "preferences.h"
  18 #include "renderengine.h"
  19 #include "tracks.h"
  20 #include "transportque.h"
  21 #include "virtualaconsole.h"
  22 #include "virtualconsole.h"
  23 #include "virtualnode.h"
  24
  25 ARender::ARender(RenderEngine *renderengine)
  26  : CommonRender(renderengine)
  27 {
  28 // Clear output buffers
  29         for(int i = 0; i < MAXCHANNELS; i++)
  30         {
  31                 audio_out[i] = 0;
  32                 level_history[i] = 0;
  33         }
  34         level_samples = 0;
  35         total_peaks = 0;
  36
  37         data_type = TRACK_AUDIO;
  38 }
  39
  40 ARender::~ARender()
  41 {
  42         for(int i = 0; i < MAXCHANNELS; i++)
  43         {
  44                 if(audio_out[i]) delete [] audio_out[i];
  45                 if(level_history[i]) delete [] level_history[i];
  46         }
  47         if(level_samples) delete [] level_samples;
  48 }
  49
  50 void ARender::arm_command()
  51 {
  52 // Need the meter history now so AModule can allocate its own history
  53         calculate_history_size();
  54         CommonRender::arm_command();
  55         asynchronous = 1;
  56         init_meters();
  57 }
  58
  59
  60 int ARender::get_total_tracks()
  61 {
  62         return renderengine->edl->tracks->total_audio_tracks();
  63 }
  64
  65 Module* ARender::new_module(Track *track)
  66 {
  67         return new AModule(renderengine, this, 0, track);
  68 }
  69
  70 int ARender::calculate_history_size()
  71 {
  72         if(total_peaks > 0)
  73                 return total_peaks;
  74         else
  75         {
  76                 meter_render_fragment = renderengine->fragment_len;
  77 // This number and the timer in tracking.C determine the rate
  78                 while(meter_render_fragment >
  79                         renderengine->edl->session->sample_rate / TRACKING_RATE)
  80                         meter_render_fragment /= 2;
  81                 total_peaks = 16 *
  82                         renderengine->fragment_len /
  83                         meter_render_fragment;
  84                 return total_peaks;
  85         }
  86 }
  87
  88 int ARender::init_meters()
  89 {
  90 // not providing enough peaks results in peaks that are ahead of the sound
  91         if(level_samples) delete [] level_samples;
  92         calculate_history_size();
  93         level_samples = new int64_t[total_peaks];
  94
  95         for(int i = 0; i < MAXCHANNELS;i++)
  96         {
  97                 current_level[i] = 0;
  98                 if(audio_out[i] && !level_history[i])
  99                         level_history[i] = new double[total_peaks];
 100         }
 101
 102         for(int i = 0; i < total_peaks; i++)
 103         {
 104                 level_samples[i] = -1;
 105         }
 106
 107         for(int j = 0; j < MAXCHANNELS; j++)
 108         {
 109                 if(audio_out[j])
 110                         for(int i = 0; i < total_peaks; i++)
 111                                 level_history[j][i] = 0;
 112         }
 113         return 0;
 114 }
 115
 116 void ARender::init_output_buffers()
 117 {
 118         if(renderengine->command->realtime)
 119         {
 120                 for(int i = 0; i < MAXCHANNELS; i++)
 121                 {
 122 // Reset the output buffers in case speed changed
 123                         delete [] audio_out[i];
 124                         audio_out[i] = 0;
 125
 126                         if(i < renderengine->edl->session->audio_channels)
 127                         {
 128                                 audio_out[i] = new double[renderengine->adjusted_fragment_len];
 129                         }
 130                 }
 131         }
 132 }
 133
 134
 135 VirtualConsole* ARender::new_vconsole_object()
 136 {
 137         return new VirtualAConsole(renderengine, this);
 138 }
 139
 140 int64_t ARender::tounits(double position, int round)
 141 {
 142         if(round)
 143                 return Units::round(position * renderengine->edl->session->sample_rate);
 144         else
 145                 return (int64_t)(position * renderengine->edl->session->sample_rate);
 146 }
 147
 148 double ARender::fromunits(int64_t position)
 149 {
 150         return (double)position / renderengine->edl->session->sample_rate;
 151 }
 152
 153
 154 int ARender::process_buffer(double **buffer_out,
 155         int64_t input_len,
 156         int64_t input_position,
 157         int last_buffer)
 158 {
 159         int result = 0;
 160
 161         this->last_playback = last_buffer;
 162         int64_t fragment_position = 0;
 163         int64_t fragment_len = input_len;
 164         int reconfigure = 0;
 165         current_position = input_position;
 166
 167         while(fragment_position < input_len)
 168         {
 169                 for(int i = 0; i < MAXCHANNELS; i++)
 170                 {
 171                         if(buffer_out[i])
 172                                 this->audio_out[i] = buffer_out[i] + fragment_position;
 173                         else
 174                                 this->audio_out[i] = 0;
 175                 }
 176
 177                 fragment_len = input_len;
 178                 if(fragment_position + fragment_len > input_len)
 179                         fragment_len = input_len - fragment_position;
 180
 181                 reconfigure = vconsole->test_reconfigure(input_position,
 182                         fragment_len,
 183                         last_playback);
 184
 185 //printf("ARender::process_buffer 1 %lld %d\n", input_position, reconfigure);
 186
 187                 if(reconfigure) restart_playback();
 188
 189                 result = process_buffer(fragment_len, input_position);
 190
 191                 fragment_position += fragment_len;
 192                 input_position += fragment_len;
 193                 current_position = input_position;
 194         }
 195
 196 // Don't delete audio_out on completion
 197         bzero(this->audio_out, sizeof(double*) * MAXCHANNELS);
 198
 199
 200
 201         return result;
 202         return 0;
 203 }
 204
 205
 206 int ARender::process_buffer(int64_t input_len, int64_t input_position)
 207 {
 208         int result = ((VirtualAConsole*)vconsole)->process_buffer(input_len,
 209                 input_position,
 210                 last_playback,
 211                 session_position);
 212
 213
 214
 215 // advance counters
 216         session_position += input_len;
 217         return result;
 218 }
 219
 220 int ARender::get_history_number(int64_t *table, int64_t position)
 221 {
 222 // Get the entry closest to position
 223         int result = 0;
 224         int64_t min_difference = 0x7fffffff;
 225         for(int i = 0; i < total_peaks; i++)
 226         {
 227
 228 //printf("%lld ", table[i]);
 229                 if(labs(table[i] - position) < min_difference)
 230                 {
 231                         min_difference = labs(table[i] - position);
 232                         result = i;
 233                 }
 234         }
 235 //printf("\n");
 236 //printf("ARender::get_history_number %lld %d\n", position, result);
 237         return result;
 238 }
 239
 240 void ARender::send_last_buffer()
 241 {
 242         renderengine->audio->set_last_buffer();
 243 }
 244
 245 int ARender::wait_device_completion()
 246 {
 247 // audio device should be entirely cleaned up by vconsole
 248         renderengine->audio->wait_for_completion();
 249         return 0;
 250 }
 251
 252 void ARender::run()
 253 {
 254         int64_t current_input_length;
 255         int reconfigure = 0;
 256
 257         first_buffer = 1;
 258
 259         start_lock->unlock();
 260 //printf("ARender::run 1 %d\n", Thread::calculate_realtime());
 261
 262         while(!done && !interrupt && !last_playback)
 263         {
 264                 current_input_length = renderengine->fragment_len;
 265
 266                 get_boundaries(current_input_length);
 267
 268 //printf("ARender::run 10 %lld %lld\n", current_position, current_input_length);
 269                 if(current_input_length)
 270                 {
 271                         reconfigure = vconsole->test_reconfigure(current_position,
 272                                 current_input_length,
 273                                 last_playback);
 274                         if(reconfigure) restart_playback();
 275                 }
 276 //printf("ARender::run 20 %lld %lld\n", current_position, current_input_length);
 277
 278
 279 // Update tracking if no video is playing.
 280                 if(renderengine->command->realtime &&
 281                         renderengine->playback_engine &&
 282                         !renderengine->do_video)
 283                 {
 284                         double position = (double)renderengine->audio->current_position() /
 285                                 renderengine->edl->session->sample_rate *
 286                                 renderengine->command->get_speed();
 287
 288                         if(renderengine->command->get_direction() == PLAY_FORWARD)
 289                                 position += renderengine->command->playbackstart;
 290                         else
 291                                 position = renderengine->command->playbackstart - position;
 292
 293 // This number is not compensated for looping.  It's compensated in
 294 // PlaybackEngine::get_tracking_position when interpolation also happens.
 295                         renderengine->playback_engine->update_tracking(position);
 296                 }
 297
 298
 299
 300 //printf("ARender::run 30 %lld\n", current_input_length);
 301
 302
 303
 304                 process_buffer(current_input_length, current_position);
 305 //printf("ARender::run 40\n");
 306
 307
 308                 advance_position(get_render_length(current_input_length));
 309 //printf("ARender::run 50\n");
 310
 311
 312                 if(vconsole->interrupt) interrupt = 1;
 313         }
 314
 315         if(!interrupt) send_last_buffer();
 316         if(renderengine->command->realtime) wait_device_completion();
 317         vconsole->stop_rendering(0);
 318         stop_plugins();
 319 }
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338 int ARender::get_datatype()
 339 {
 340         return TRACK_AUDIO;
 341 }
 342
 343 int ARender::arm_playback(int64_t current_position,
 344                         int64_t input_length,
 345                         int64_t amodule_render_fragment,
 346                         int64_t playback_buffer,
 347                         int64_t output_length)
 348 {
 349         this->current_position = current_position;
 350         this->input_length = input_length;
 351         session_position = 0;
 352
 353         source_length = renderengine->end_position - renderengine->start_position;
 354
 355
 356         if(renderengine->command->realtime)
 357         {
 358                 Thread::set_realtime(renderengine->edl->session->real_time_playback);
 359                 init_meters();
 360         }
 361
 362
 363 // start reading input and sending to arenderthread
 364 // only if there's an audio device
 365         if(renderengine->command->realtime)
 366         {
 367                 set_synchronous(1);
 368                 start();
 369         }
 370         return 0;
 371 }
 372
 373 // int ARender::send_reconfigure_buffer()
 374 // {
 375 //      if(renderengine->command->realtime)
 376 //      {
 377 //              vconsole->output_lock[vconsole->current_input_buffer]->lock("ARender::send_reconfigure_buffer");
 378 //
 379 //              vconsole->input_len[vconsole->current_input_buffer] = 0;
 380 //              vconsole->input_position[vconsole->current_input_buffer] = 0;
 381 //              vconsole->last_playback[vconsole->current_input_buffer] = 0;
 382 //              vconsole->last_reconfigure[vconsole->current_input_buffer] = 1;
 383 //
 384 //              vconsole->input_lock[vconsole->current_input_buffer]->unlock();
 385 //              vconsole->swap_input_buffer();
 386 //      }
 387 //      return 0;
 388 // }
 389
 390 int ARender::reverse_buffer(double *buffer, int64_t len)
 391 {
 392         register int64_t start, end;
 393         double temp;
 394
 395         for(start = 0, end = len - 1; end > start; start++, end--)
 396         {
 397                 temp = buffer[start];
 398                 buffer[start] = buffer[end];
 399                 buffer[end] = temp;
 400         }
 401 }
 402
 403 int ARender::get_next_peak(int current_peak)
 404 {
 405         current_peak++;
 406         if(current_peak >= total_peaks) current_peak = 0;
 407         return current_peak;
 408 }
 409
 410 int64_t ARender::get_render_length(int64_t current_render_length)
 411 {
 412         return current_render_length;
 413 }
 414
 415 /*
 416 //      Local Variables:
 417 //      mode: C++
 418 //      c-file-style: "linux"
 419 //      End:
 420 */