cinelerra/recordvideo.C

   1 #include "asset.h"
   2 #include "batch.h"
   3 #include "bcsignals.h"
   4 #include "clip.h"
   5 #include "condition.h"
   6 #include "edl.h"
   7 #include "edlsession.h"
   8 #include "errorbox.h"
   9 #include "file.h"
  10 #include "filethread.h"
  11 #include "language.h"
  12 #include "mutex.h"
  13 #include "mwindow.h"
  14 #include "mwindowgui.h"
  15 #include "preferences.h"
  16 #include "quicktime.h"
  17 #include "record.h"
  18 #include "recordaudio.h"
  19 #include "recordgui.h"
  20 #include "recordthread.h"
  21 #include "recordvideo.h"
  22 #include "recordmonitor.h"
  23 #include "units.h"
  24 #include "vframe.h"
  25 #include "videodevice.h"
  26
  27 #include <unistd.h>
  28
  29
  30 RecordVideo::RecordVideo(MWindow *mwindow,
  31         Record *record,
  32         RecordThread *record_thread)
  33  : Thread(1, 0, 0)
  34 {
  35         reset_parameters();
  36         this->mwindow = mwindow;
  37         this->record = record;
  38         this->record_thread = record_thread;
  39         this->gui = record->record_gui;
  40         unhang_lock = new Mutex("RecordVideo::unhang_lock");
  41         trigger_lock = new Condition(1, "RecordVideo::trigger_lock");
  42         capture_frame = 0;
  43         frame_ptr = 0;
  44 }
  45
  46 RecordVideo::~RecordVideo()
  47 {
  48         delete unhang_lock;
  49         delete trigger_lock;
  50 // These objects are shared with the file if recording.
  51         if(record_thread->monitor)
  52         {
  53                 if(frame_ptr)
  54                 {
  55                         if(frame_ptr[0]) delete [] frame_ptr[0];
  56                         delete [] frame_ptr;
  57                 }
  58                 delete capture_frame;
  59         }
  60 }
  61
  62 void RecordVideo::reset_parameters()
  63 {
  64         write_result = 0;
  65         grab_result = 0;
  66         total_dropped_frames = 0;
  67         dropped_frames = 0;
  68         last_dropped_frames = 0;
  69         record_start = 0;
  70         buffer_position = 0;
  71         batch_done = 0;
  72 }
  73
  74 int RecordVideo::arm_recording()
  75 {
  76         reset_parameters();
  77 // Resume next file in a series by incrementing existing counters
  78         if(record_thread->monitor)
  79                 buffer_size = 1;
  80         else
  81                 buffer_size = mwindow->edl->session->video_write_length;
  82
  83         trigger_lock->lock("RecordVideo::arm_recording");
  84         Thread::start();
  85
  86         return 0;
  87 }
  88
  89 void RecordVideo::start_recording()
  90 {
  91         trigger_lock->unlock();
  92 }
  93
  94 int RecordVideo::stop_recording()
  95 {
  96 // Device won't exist if interrupting a cron job
  97         if(record->vdevice)
  98         {
  99 // Interrupt IEEE1394 crashes
 100                 record->vdevice->interrupt_crash();
 101
 102 // Interrupt video4linux crashes
 103                 if(record->vdevice->get_failed())
 104                 {
 105                         Thread::end();
 106                         Thread::join();
 107
 108                         cleanup_recording();
 109                 }
 110         }
 111 // Joined in RecordThread
 112         return 0;
 113 }
 114
 115
 116 int RecordVideo::cleanup_recording()
 117 {
 118         if(!record_thread->monitor)
 119         {
 120 // write last buffer
 121                 write_buffer(1);
 122 // stop file I/O
 123         }
 124         else
 125         {
 126 // RecordMonitorThread still needs capture_frame if uncompressed.
 127 //              delete [] frame_ptr[0];
 128 //              delete [] frame_ptr;
 129 //              delete capture_frame;
 130         }
 131         return 0;
 132 }
 133
 134 void RecordVideo::get_capture_frame()
 135 {
 136         if(!capture_frame)
 137         {
 138                 if(record->fixed_compression)
 139                 {
 140                         capture_frame = new VFrame;
 141                 }
 142                 else
 143                 {
 144                         capture_frame = new VFrame(0,
 145                                 record->default_asset->width,
 146                                 record->default_asset->height,
 147                                 record->vdevice->get_best_colormodel(record->default_asset));
 148 //printf("RecordVideo::get_capture_frame %d %d\n", capture_frame->get_w(), capture_frame->get_h());
 149                 }
 150                 frame_ptr = new VFrame**[1];
 151                 frame_ptr[0] = new VFrame*[1];
 152                 frame_ptr[0][0] = capture_frame;
 153         }
 154 }
 155
 156
 157 void RecordVideo::run()
 158 {
 159         write_result = 0;
 160         grab_result = 0;
 161
 162 // Thread out the I/O
 163         if(!record_thread->monitor)
 164         {
 165                 record_start = record->file->get_video_position(record->default_asset->frame_rate);
 166                 frame_ptr = record->file->get_video_buffer();
 167         }
 168         else
 169         {
 170                 get_capture_frame();
 171         }
 172
 173 // Number of frames for user to know about.
 174         gui->total_dropped_frames = 0;
 175         gui->update_dropped_frames(0);
 176
 177
 178 // Wait for trigger
 179         trigger_lock->lock("RecordVideo::run");
 180         trigger_lock->unlock();
 181
 182         while(!batch_done &&
 183                 !write_result)
 184         {
 185 // Synchronize with audio or timer
 186                 dropped_frames = 0;
 187                 next_sample = (int64_t)((float)record->get_current_batch()->session_frames /
 188                         record->default_asset->frame_rate *
 189                         record->default_asset->sample_rate);
 190                 current_sample = record->sync_position();
 191
 192
 193                 if(current_sample < next_sample && current_sample > 0)
 194                 {
 195 // Too early.
 196                         delay = (int64_t)((float)(next_sample - current_sample) /
 197                                 record->default_asset->sample_rate *
 198                                 1000);
 199 // Sanity check and delay.
 200 // In 2.6.7 this doesn't work.  For some reason, probably buffer overflowing,
 201 // it causes the driver to hang up momentarily so we try to only delay
 202 // when really really far ahead.
 203                         if(delay < 2000 && delay > 0)
 204                         {
 205                                 delayer.delay(delay);
 206                         }
 207                         gui->update_dropped_frames(0);
 208                         last_dropped_frames = 0;
 209                 }
 210                 else
 211                 if(current_sample > 0 && !record_thread->monitor)
 212                 {
 213 // Too late.
 214                         dropped_frames = (int64_t)((float)(current_sample - next_sample) /
 215                                 record->default_asset->sample_rate *
 216                                 record->default_asset->frame_rate);
 217                         if(dropped_frames != last_dropped_frames)
 218                         {
 219                                 gui->update_dropped_frames(dropped_frames);
 220                                 last_dropped_frames = dropped_frames;
 221                         }
 222                         last_dropped_frames = dropped_frames;
 223                 }
 224
 225
 226
 227 // Capture a frame
 228                 if(!batch_done)
 229                 {
 230 // Grab frame for recording
 231                         if(!record_thread->monitor)
 232                         {
 233                                 capture_frame = frame_ptr[0][buffer_position];
 234                                 record->vdevice->set_field_order(record->reverse_interlace);
 235                                 read_buffer();
 236                                 record->get_current_batch()->current_frame++;
 237                                 record->get_current_batch()->total_frames =
 238                                         MAX(record->get_current_batch()->current_frame, record->get_current_batch()->total_frames);
 239                                 record->get_current_batch()->session_frames++;
 240                                 if(!grab_result) buffer_position++;
 241
 242 // Update the position indicator
 243                                 gui->update_position(record->current_display_position());
 244                         }
 245                         else
 246 // Grab frame for monitoring
 247                         if(record->monitor_video)
 248                         {
 249                                 record->vdevice->set_field_order(record->reverse_interlace);
 250                                 record->get_current_batch()->session_frames++;
 251
 252                                 read_buffer();
 253                         }
 254                         else
 255 // Brief pause to keep CPU from burning up
 256                         {
 257                                 Timer::delay(250);
 258                         }
 259                 }
 260
 261 // Monitor the frame if monitoring
 262 // printf("RecordVideo::run %p %d %d %d\n",
 263 // capture_frame->get_data(),
 264 // record->monitor_video,
 265 // batch_done,
 266 // grab_result);
 267                 if(capture_frame->get_data() &&
 268                         record->monitor_video &&
 269                         !batch_done &&
 270                         !grab_result)
 271                 {
 272                         record->record_monitor->update(capture_frame);
 273                 }
 274
 275 // Duplicate a frame if behind
 276                 if(!record_thread->monitor &&
 277                         record->fill_frames &&
 278                         !batch_done &&
 279                         dropped_frames > 1)
 280                 {
 281                         VFrame *last_frame = capture_frame;
 282 // Write frame 1
 283                         if(buffer_position >= buffer_size) write_buffer(0);
 284 // Copy to frame 2
 285                         capture_frame = frame_ptr[0][buffer_position];
 286                         capture_frame->copy_from(last_frame);
 287                         record->get_current_batch()->current_frame++;
 288                         record->get_current_batch()->total_frames =
 289                                 MAX(record->get_current_batch()->current_frame, record->get_current_batch()->total_frames);
 290                         record->get_current_batch()->session_frames++;
 291                         buffer_position++;
 292                 }
 293
 294 // Compress a batch of frames or write the second frame if filling
 295                 if(!record_thread->monitor && buffer_position >= buffer_size)
 296                 {
 297                         write_buffer(0);
 298                 }
 299
 300                 if(!record_thread->monitor &&
 301                         !batch_done &&
 302                         !write_result)
 303                 {
 304 // Handle recording contexts
 305                         if(record_thread->context == CONTEXT_SINGLEFRAME)
 306                         {
 307                                 batch_done = 1;
 308                         }
 309                         else
 310 // Handle recording modes delegated to the thread
 311                         switch(record->get_current_batch()->record_mode)
 312                         {
 313                                 case RECORD_TIMED:
 314                                         if(record->current_display_position() > *record->current_duration())
 315                                                 batch_done = 1;
 316                                         break;
 317                                 case RECORD_LOOP:
 318                                         if(record->current_display_position() > *record->current_duration())
 319                                                 batch_done = 1;
 320                                         break;
 321                                 case RECORD_SCENETOSCENE:
 322                                         break;
 323                         }
 324                 }
 325
 326                 if(write_result)
 327                 {
 328                         batch_done = 1;
 329                 }
 330         }
 331
 332 //TRACE("RecordVideo::run 1");
 333 // Update dependant threads
 334         if(record->default_asset->audio_data)
 335         {
 336                 record_thread->record_audio->batch_done = 1;
 337 // Interrupt driver for IEEE1394
 338                 record_thread->record_audio->stop_recording();
 339         }
 340
 341 //TRACE("RecordVideo::run 2");
 342
 343         if(write_result)
 344         {
 345                 if(!record_thread->monitor)
 346                 {
 347                         ErrorBox error_box(PROGRAM_NAME ": Error",
 348                                 mwindow->gui->get_abs_cursor_x(1),
 349                                 mwindow->gui->get_abs_cursor_y(1));
 350                         error_box.create_objects(_("No space left on disk."));
 351                         error_box.run_window();
 352                         batch_done = 1;
 353                 }
 354         }
 355
 356         cleanup_recording();
 357 SET_TRACE
 358 }
 359
 360 void RecordVideo::read_buffer()
 361 {
 362         grab_result = record->vdevice->read_buffer(capture_frame);
 363
 364
 365 // Get field offset for monitor
 366         if(!strncmp(record->default_asset->vcodec, QUICKTIME_MJPA, 4) &&
 367                 record->vdevice->is_compressed(0, 1))
 368         {
 369                 unsigned char *data = capture_frame->get_data();
 370                 int64_t size = capture_frame->get_compressed_size();
 371                 int64_t allocation = capture_frame->get_compressed_allocated();
 372
 373                 if(data)
 374                 {
 375                         int64_t field2_offset = mjpeg_get_field2(data, size);
 376                         capture_frame->set_compressed_size(size);
 377                         capture_frame->set_field2_offset(field2_offset);
 378                 }
 379         }
 380 }
 381
 382 void RecordVideo::write_buffer(int skip_new)
 383 {
 384         write_result = record->file->write_video_buffer(buffer_position);
 385         buffer_position = 0;
 386         if(!skip_new && !write_result)
 387                 frame_ptr = record->file->get_video_buffer();
 388 }
 389
 390 void RecordVideo::rewind_file()
 391 {
 392         write_buffer(1);
 393         record->file->stop_video_thread();
 394         record->file->set_video_position(0, record->default_asset->frame_rate);
 395         record->file->start_video_thread(buffer_size,
 396                 record->vdevice->get_best_colormodel(record->default_asset),
 397                 2,
 398                 record->vdevice->is_compressed(1, 0));
 399         frame_ptr = record->file->get_video_buffer();
 400         record->get_current_batch()->current_frame = 0;
 401         record->get_current_batch()->current_sample = 0;
 402         record->get_current_batch()->session_frames = 0;
 403         record->get_current_batch()->session_samples = 0;
 404         gui->update_position(0);
 405 }
 406
 407 int RecordVideo::unhang_thread()
 408 {
 409 printf("RecordVideo::unhang_thread\n");
 410         Thread::end();
 411 }
 412
 413 /*
 414 //      Local Variables:
 415 //      mode: C++
 416 //      c-file-style: "linux"
 417 //      End:
 418 */