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::get_history_number(int64_t *table, int64_t position)
 222 {
 223 // Get the entry closest to position
 224         int result = 0;
 225         int64_t min_difference = 0x7fffffff;
 226         for(int i = 0; i < total_peaks; i++)
 227         {
 228
 229 //printf("%lld ", table[i]);
 230                 if(labs(table[i] - position) < min_difference)
 231                 {
 232                         min_difference = labs(table[i] - position);
 233                         result = i;
 234                 }
 235         }
 236 //printf("\n");
 237 //printf("ARender::get_history_number %lld %d\n", position, result);
 238         return result;
 239 }
 240
 241 void ARender::send_last_buffer()
 242 {
 243         renderengine->audio->set_last_buffer();
 244 }
 245
 246 int ARender::wait_device_completion()
 247 {
 248 // audio device should be entirely cleaned up by vconsole
 249         renderengine->audio->wait_for_completion();
 250         return 0;
 251 }
 252
 253 void ARender::run()
 254 {
 255         int64_t current_input_length;
 256         int reconfigure = 0;
 257
 258         first_buffer = 1;
 259
 260         start_lock->unlock();
 261 //printf("ARender::run 1 %d\n", Thread::calculate_realtime());
 262
 263         while(!done && !interrupt && !last_playback)
 264         {
 265                 current_input_length = renderengine->fragment_len;
 266
 267                 get_boundaries(current_input_length);
 268
 269 //printf("ARender::run 10 %lld %lld\n", current_position, current_input_length);
 270                 if(current_input_length)
 271                 {
 272                         reconfigure = vconsole->test_reconfigure(current_position,
 273                                 current_input_length,
 274                                 last_playback);
 275                         if(reconfigure) restart_playback();
 276                 }
 277 //printf("ARender::run 20 %lld %lld\n", current_position, current_input_length);
 278
 279
 280 // Update tracking if no video is playing.
 281                 if(renderengine->command->realtime &&
 282                         renderengine->playback_engine &&
 283                         !renderengine->do_video)
 284                 {
 285                         double position = (double)renderengine->audio->current_position() /
 286                                 renderengine->edl->session->sample_rate *
 287                                 renderengine->command->get_speed();
 288
 289                         if(renderengine->command->get_direction() == PLAY_FORWARD)
 290                                 position += renderengine->command->playbackstart;
 291                         else
 292                                 position = renderengine->command->playbackstart - position;
 293
 294 // This number is not compensated for looping.  It's compensated in
 295 // PlaybackEngine::get_tracking_position when interpolation also happens.
 296                         renderengine->playback_engine->update_tracking(position);
 297                 }
 298
 299
 300
 301 //printf("ARender::run 30 %lld\n", current_input_length);
 302
 303
 304
 305                 process_buffer(current_input_length, current_position);
 306 //printf("ARender::run 40\n");
 307
 308
 309                 advance_position(get_render_length(current_input_length));
 310 //printf("ARender::run 50\n");
 311
 312
 313                 if(vconsole->interrupt) interrupt = 1;
 314         }
 315
 316         if(!interrupt) send_last_buffer();
 317         if(renderengine->command->realtime) wait_device_completion();
 318         vconsole->stop_rendering(0);
 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