hvirtual/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         for(int i = 0; i < MAXCHANNELS;i++)
  95         {
  96                 current_level[i] = 0;
  97                 if(audio_out[i] && !level_history[i]) level_history[i] = new double[total_peaks];
  98         }
  99
 100         for(int i = 0; i < total_peaks; i++)
 101         {
 102                 level_samples[i] = -1;
 103         }
 104
 105         for(int j = 0; j < MAXCHANNELS; j++)
 106         {
 107                 if(audio_out[j])
 108                         for(int i = 0; i < total_peaks; i++)
 109                                 level_history[j][i] = 0;
 110         }
 111         return 0;
 112 }
 113
 114 void ARender::init_output_buffers()
 115 {
 116         if(renderengine->command->realtime)
 117         {
 118                 for(int i = 0; i < MAXCHANNELS; i++)
 119                 {
 120 // Reset the output buffers in case speed changed
 121                         if(audio_out[i])
 122                         {
 123                                 delete [] audio_out[i];
 124                                 audio_out[i] = 0;
 125                         }
 126
 127                         if(renderengine->config->aconfig->do_channel[i])
 128                         {
 129                                 audio_out[i] = new double[renderengine->adjusted_fragment_len];
 130                         }
 131                 }
 132         }
 133 }
 134
 135
 136 VirtualConsole* ARender::new_vconsole_object()
 137 {
 138         return new VirtualAConsole(renderengine, this);
 139 }
 140
 141 int64_t ARender::tounits(double position, int round)
 142 {
 143         if(round)
 144                 return Units::round(position * renderengine->edl->session->sample_rate);
 145         else
 146                 return (int64_t)(position * renderengine->edl->session->sample_rate);
 147 }
 148
 149 double ARender::fromunits(int64_t position)
 150 {
 151         return (double)position / renderengine->edl->session->sample_rate;
 152 }
 153
 154
 155 int ARender::process_buffer(double **buffer_out,
 156         int64_t input_len,
 157         int64_t input_position,
 158         int last_buffer)
 159 {
 160         int result = 0;
 161
 162         this->last_playback = last_buffer;
 163         int64_t fragment_position = 0;
 164         int64_t fragment_len = input_len;
 165         int reconfigure = 0;
 166         current_position = input_position;
 167
 168         while(fragment_position < input_len)
 169         {
 170                 for(int i = 0; i < MAXCHANNELS; i++)
 171                 {
 172                         if(buffer_out[i])
 173                                 this->audio_out[i] = buffer_out[i] + fragment_position;
 174                         else
 175                                 this->audio_out[i] = 0;
 176                 }
 177
 178                 fragment_len = input_len;
 179                 if(fragment_position + fragment_len > input_len)
 180                         fragment_len = input_len - fragment_position;
 181
 182                 reconfigure = vconsole->test_reconfigure(input_position,
 183                         fragment_len,
 184                         last_playback);
 185
 186 //printf("ARender::process_buffer 1 %lld %d\n", input_position, reconfigure);
 187
 188                 if(reconfigure) restart_playback();
 189
 190                 result = process_buffer(fragment_len, input_position);
 191
 192                 fragment_position += fragment_len;
 193                 input_position += fragment_len;
 194                 current_position = input_position;
 195         }
 196
 197 // Don't delete audio_out on completion
 198         bzero(this->audio_out, sizeof(double*) * MAXCHANNELS);
 199
 200
 201
 202         return result;
 203         return 0;
 204 }
 205
 206
 207 int ARender::process_buffer(int64_t input_len, int64_t input_position)
 208 {
 209         int result = ((VirtualAConsole*)vconsole)->process_buffer(input_len,
 210                 input_position,
 211                 last_playback,
 212                 session_position);
 213
 214
 215
 216 // advance counters
 217         session_position += input_len;
 218         return result;
 219 }
 220
 221 // int ARender::restart_playback()
 222 // {
 223 // // Use for rebuilding the virtual console during playback.
 224 // // Send last buffer to old thread.
 225 //      if(vconsole)
 226 //      {
 227 //              send_reconfigure_buffer();
 228 //              vconsole->wait_for_completion();
 229 //      }
 230 //
 231 //      CommonRender::restart_playback();
 232 //      return 0;
 233 // }
 234
 235 int ARender::get_history_number(int64_t *table, int64_t position)
 236 {
 237 // Get the entry closest to position
 238         int result = 0;
 239         int64_t min_difference = 0x7fffffff;
 240         for(int i = 0; i < total_peaks; i++)
 241         {
 242 //printf("%d %d ", i, table[i]);
 243                 if(labs(table[i] - position) < min_difference)
 244                 {
 245 //printf("\n");
 246                         min_difference = labs(table[i] - position);
 247                         result = i;
 248                 }
 249         }
 250 //printf("\n");
 251 //printf("ARender::get_history_number %ld %d %d\n", position, result, min_difference);
 252         return result;
 253 }
 254
 255 void ARender::send_last_buffer()
 256 {
 257         renderengine->audio->set_last_buffer();
 258 }
 259
 260 int ARender::wait_device_completion()
 261 {
 262 // audio device should be entirely cleaned up by vconsole
 263         renderengine->audio->wait_for_completion();
 264         return 0;
 265 }
 266
 267 void ARender::run()
 268 {
 269         int64_t current_input_length;
 270         int reconfigure = 0;
 271
 272         first_buffer = 1;
 273
 274         start_lock->unlock();
 275
 276         while(!done && !interrupt && !last_playback)
 277         {
 278                 current_input_length = renderengine->fragment_len;
 279
 280 //printf("ARender::run 1 %p\n", renderengine->edl);
 281                 get_boundaries(current_input_length);
 282
 283 //printf("ARender::run 10 %lld %lld\n", current_position, current_input_length);
 284                 if(current_input_length)
 285                 {
 286                         reconfigure = vconsole->test_reconfigure(current_position,
 287                                 current_input_length,
 288                                 last_playback);
 289                         if(reconfigure) restart_playback();
 290                 }
 291 //printf("ARender::run 20 %lld %lld\n", current_position, current_input_length);
 292
 293
 294 // Update tracking if no video is playing.
 295                 if(renderengine->command->realtime &&
 296                         renderengine->playback_engine &&
 297                         !renderengine->do_video)
 298                 {
 299                         double position = (double)renderengine->audio->current_position() /
 300                                 renderengine->edl->session->sample_rate *
 301                                 renderengine->command->get_speed();
 302
 303                         if(renderengine->command->get_direction() == PLAY_FORWARD)
 304                                 position += renderengine->command->playbackstart;
 305                         else
 306                                 position = renderengine->command->playbackstart - position;
 307
 308 // This number is not compensated for looping.  It's compensated in
 309 // PlaybackEngine::get_tracking_position when interpolation also happens.
 310                         renderengine->playback_engine->update_tracking(position);
 311                 }
 312
 313
 314
 315 //printf("ARender::run 30 %lld\n", current_input_length);
 316
 317
 318
 319                 process_buffer(current_input_length, current_position);
 320 //printf("ARender::run 40\n");
 321
 322
 323                 advance_position(get_render_length(current_input_length));
 324 //printf("ARender::run 50\n");
 325
 326
 327                 if(vconsole->interrupt) interrupt = 1;
 328         }
 329
 330         if(!interrupt) send_last_buffer();
 331         if(renderengine->command->realtime) wait_device_completion();
 332         vconsole->stop_rendering(0);
 333 }
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352 int ARender::get_datatype()
 353 {
 354         return TRACK_AUDIO;
 355 }
 356
 357 int ARender::arm_playback(int64_t current_position,
 358                         int64_t input_length,
 359                         int64_t amodule_render_fragment,
 360                         int64_t playback_buffer,
 361                         int64_t output_length)
 362 {
 363         this->current_position = current_position;
 364         this->input_length = input_length;
 365         session_position = 0;
 366
 367         source_length = renderengine->end_position - renderengine->start_position;
 368
 369
 370         if(renderengine->command->realtime)
 371         {
 372                 Thread::set_realtime(renderengine->edl->session->real_time_playback);
 373                 init_meters();
 374         }
 375
 376
 377 // start reading input and sending to arenderthread
 378 // only if there's an audio device
 379         if(renderengine->command->realtime)
 380         {
 381                 set_synchronous(1);
 382                 start();
 383         }
 384         return 0;
 385 }
 386
 387 // int ARender::send_reconfigure_buffer()
 388 // {
 389 //      if(renderengine->command->realtime)
 390 //      {
 391 //              vconsole->output_lock[vconsole->current_input_buffer]->lock("ARender::send_reconfigure_buffer");
 392 //
 393 //              vconsole->input_len[vconsole->current_input_buffer] = 0;
 394 //              vconsole->input_position[vconsole->current_input_buffer] = 0;
 395 //              vconsole->last_playback[vconsole->current_input_buffer] = 0;
 396 //              vconsole->last_reconfigure[vconsole->current_input_buffer] = 1;
 397 //
 398 //              vconsole->input_lock[vconsole->current_input_buffer]->unlock();
 399 //              vconsole->swap_input_buffer();
 400 //      }
 401 //      return 0;
 402 // }
 403
 404 int ARender::reverse_buffer(double *buffer, int64_t len)
 405 {
 406         register int64_t start, end;
 407         double temp;
 408
 409         for(start = 0, end = len - 1; end > start; start++, end--)
 410         {
 411                 temp = buffer[start];
 412                 buffer[start] = buffer[end];
 413                 buffer[end] = temp;
 414         }
 415 }
 416
 417 int ARender::get_next_peak(int current_peak)
 418 {
 419         current_peak++;
 420         if(current_peak >= total_peaks) current_peak = 0;
 421         return current_peak;
 422 }
 423
 424 int64_t ARender::get_render_length(int64_t current_render_length)
 425 {
 426         return current_render_length;
 427 }
 428