cinelerra/iec61883output.C

   1 #ifdef HAVE_FIREWIRE
   2
   3
   4
   5 #include "audiodevice.h"
   6 #include "condition.h"
   7 #include "iec61883output.h"
   8 #include "mutex.h"
   9 #include "playbackconfig.h"
  10 #include "bctimer.h"
  11 #include "vframe.h"
  12 #include "videodevice.h"
  13
  14 #include <errno.h>
  15 #include <fcntl.h>
  16 #include <string.h>
  17 #include <sys/ioctl.h>
  18 #include <sys/mman.h>
  19 #include <unistd.h>
  20 #include <sys/utsname.h>
  21
  22
  23
  24
  25
  26 // Crazy DV internals
  27 #define CIP_N_NTSC 2436
  28 #define CIP_D_NTSC 38400
  29 #define CIP_N_PAL 1
  30 #define CIP_D_PAL 16
  31 #define OUTPUT_SAMPLES 262144
  32 #define BUFFER_TIMEOUT 500000
  33
  34
  35 IEC61883Output::IEC61883Output(AudioDevice *adevice)
  36  : Thread(1, 0, 0)
  37 {
  38         reset();
  39         this->adevice = adevice;
  40 }
  41
  42 IEC61883Output::IEC61883Output(VideoDevice *vdevice)
  43  : Thread(1, 0, 0)
  44 {
  45         reset();
  46         this->vdevice = vdevice;
  47 }
  48
  49 IEC61883Output::~IEC61883Output()
  50 {
  51         if(Thread::running())
  52         {
  53                 done = 1;
  54                 start_lock->unlock();
  55                 Thread::cancel();
  56                 Thread::join();
  57         }
  58
  59         if(buffer)
  60         {
  61                 for(int i = 0; i < total_buffers; i++)
  62                 {
  63                         if(buffer[i]) delete [] buffer[i];
  64                 }
  65                 delete [] buffer;
  66                 delete [] buffer_size;
  67                 delete [] buffer_valid;
  68         }
  69
  70         if(audio_lock) delete audio_lock;
  71         if(video_lock) delete video_lock;
  72         if(start_lock) delete start_lock;
  73         if(audio_buffer) delete [] audio_buffer;
  74
  75         if(temp_frame) delete temp_frame;
  76         if(temp_frame2) delete temp_frame2;
  77         if(video_encoder) dv_delete(video_encoder);
  78         if(audio_encoder) dv_delete(audio_encoder);
  79         if(buffer_lock) delete buffer_lock;
  80         if(position_lock) delete position_lock;
  81         if(frame) iec61883_dv_close(frame);
  82         if(handle) raw1394_destroy_handle(handle);
  83 }
  84
  85
  86 void IEC61883Output::reset()
  87 {
  88         handle = 0;
  89         fd = 0;
  90         frame = 0;
  91         out_position = 0;
  92         out_buffer = 0;
  93         out_size = 0;
  94
  95         buffer = 0;
  96         buffer_size = 0;
  97         total_buffers = 0;
  98         current_inbuffer = 0;
  99         current_outbuffer = 0;
 100         done = 0;
 101         audio_lock = 0;
 102         video_lock = 0;
 103         start_lock = 0;
 104         buffer_lock = 0;
 105         position_lock = 0;
 106         video_encoder = 0;
 107         audio_encoder = 0;
 108         audio_buffer = 0;
 109         audio_samples = 0;
 110         temp_frame = 0;
 111         temp_frame2 = 0;
 112         audio_position = 0;
 113         interrupted = 0;
 114         have_video = 0;
 115         adevice = 0;
 116         vdevice = 0;
 117         is_pal = 0;
 118 }
 119
 120
 121
 122 static int read_frame_static(unsigned char *data, int n, unsigned int dropped, void *ptr)
 123 {
 124         IEC61883Output *output = (IEC61883Output*)ptr;
 125         return output->read_frame(data, n, dropped);
 126 }
 127
 128
 129
 130
 131
 132 int IEC61883Output::open(int port,
 133         int channel,
 134         int length,
 135         int channels,
 136         int bits,
 137         int samplerate,
 138         int syt)
 139 {
 140         this->channels = channels;
 141         this->bits = bits;
 142         this->samplerate = samplerate;
 143         this->total_buffers = length;
 144         this->syt = syt;
 145
 146 // Set PAL mode based on frame height
 147         if(vdevice) is_pal = (vdevice->out_h == 576);
 148
 149
 150
 151
 152         if(!handle)
 153         {
 154                 handle = raw1394_new_handle_on_port(port);
 155                 if(handle)
 156                 {
 157                         frame = iec61883_dv_xmit_init(handle,
 158                                 is_pal,
 159                                 read_frame_static,
 160                                 (void *)this);
 161                         if(frame)
 162                         {
 163                                 if(!iec61883_dv_xmit_start(frame, channel))
 164                                 {
 165                                         fd = raw1394_get_fd(handle);
 166                                 }
 167                         }
 168                 }
 169
 170 // Create buffers
 171                 buffer = new char*[total_buffers];
 172                 for(int i = 0; i < length; i++)
 173                         buffer[i] = new char[DV_PAL_SIZE];
 174                 buffer_size = new int[total_buffers];
 175                 buffer_valid = new int[total_buffers];
 176                 bzero(buffer_size, sizeof(int) * total_buffers);
 177                 bzero(buffer_valid, sizeof(int) * total_buffers);
 178                 bzero(buffer, sizeof(char*) * total_buffers);
 179                 video_lock = new Condition(0, "IEC61883Output::video_lock");
 180                 audio_lock = new Condition(0, "IEC61883Output::audio_lock");
 181                 start_lock = new Condition(0, "IEC61883Output::start_lock");
 182                 buffer_lock = new Mutex("IEC61883Output::buffer_lock");
 183                 position_lock = new Mutex("IEC61883Output::position_lock");
 184                 encoder = dv_new();
 185                 audio_buffer = new char[OUTPUT_SAMPLES * channels * bits / 8];
 186                 Thread::start();
 187         }
 188         return 0;
 189 }
 190
 191 void IEC61883Output::run()
 192 {
 193         Thread::enable_cancel();
 194         start_lock->lock("IEC61883Output::run");
 195         Thread::disable_cancel();
 196
 197         while(!done)
 198         {
 199                 struct timeval tv;
 200                 fd_set rfds;
 201                 FD_ZERO (&rfds);
 202                 FD_SET (fd, &rfds);
 203                 tv.tv_sec = 0;
 204                 tv.tv_usec = 20000;
 205                 if(select(fd + 1, &rfds, 0, 0, &tv) > 0)
 206                         raw1394_loop_iterate (handle);
 207         }
 208 }
 209
 210
 211
 212 int IEC61883Output::read_frame(unsigned char *data, int n, unsigned int dropped)
 213 {
 214 // Next frame
 215         if(!out_buffer || out_position + 480 > out_size)
 216         {
 217                 buffer_lock->lock("IEC61883Output read_frame 1");
 218
 219                 out_buffer = buffer[current_outbuffer];
 220                 out_size = buffer_size[current_outbuffer];
 221                 out_position = 0;
 222
 223
 224 // No video.  Put in a fake frame for audio only
 225                 if(!have_video)
 226                 {
 227 #include "data/fake_ntsc_dv.h"
 228                         out_size = sizeof(fake_ntsc_dv) - 4;
 229                         out_buffer = (char*)fake_ntsc_dv + 4;
 230                 }
 231
 232
 233
 234
 235
 236
 237
 238
 239 // Calculate number of samples needed based on given pattern for
 240 // norm.
 241                 int samples_per_frame = 2048;
 242
 243 // Encode audio
 244                 if(audio_samples > samples_per_frame)
 245                 {
 246                         int samples_written = dv_write_audio(encoder,
 247                                 (unsigned char*)out_buffer,
 248                                 (unsigned char*)audio_buffer,
 249                                 samples_per_frame,
 250                                 channels,
 251                                 bits,
 252                                 samplerate,
 253                                 is_pal ? DV_PAL : DV_NTSC);
 254                         memcpy(audio_buffer,
 255                                 audio_buffer + samples_written * bits * channels / 8,
 256                                 (audio_samples - samples_written) * bits * channels / 8);
 257                         audio_samples -= samples_written;
 258                         position_lock->lock("IEC61883Output::run");
 259                         audio_position += samples_written;
 260                         position_lock->unlock();
 261
 262
 263                         audio_lock->unlock();
 264                 }
 265
 266
 267                 buffer_lock->unlock();
 268         }
 269
 270
 271
 272
 273 // Write next chunk of current frame
 274         if(out_buffer && out_position + 480 <= out_size)
 275         {
 276                 memcpy(data, out_buffer + out_position, 480);
 277                 out_position += 480;
 278
 279
 280
 281                 if(out_position >= out_size)
 282                 {
 283                         buffer_lock->lock("IEC61883Output read_frame 2");
 284                         buffer_valid[current_outbuffer] = 0;
 285
 286 // Advance buffer number if possible
 287                         increment_counter(&current_outbuffer);
 288
 289 // Reuse same buffer next time
 290                         if(!buffer_valid[current_outbuffer])
 291                         {
 292                                 decrement_counter(&current_outbuffer);
 293                         }
 294                         else
 295 // Wait for user to reach current buffer before unlocking any more.
 296                         {
 297                                 video_lock->unlock();
 298                         }
 299
 300                         buffer_lock->unlock();
 301                 }
 302         }
 303 }
 304
 305
 306
 307
 308 void IEC61883Output::write_frame(VFrame *input)
 309 {
 310         VFrame *ptr = 0;
 311         int result = 0;
 312
 313 //printf("IEC61883Output::write_frame 1\n");
 314
 315         if(fd <= 0) return;
 316         if(interrupted) return;
 317
 318 // Encode frame to DV
 319         if(input->get_color_model() != BC_COMPRESSED)
 320         {
 321                 if(!temp_frame) temp_frame = new VFrame;
 322                 if(!encoder) encoder = dv_new();
 323                 ptr = temp_frame;
 324
 325 // Exact resolution match.  Don't do colorspace conversion
 326                 if(input->get_color_model() == BC_YUV422 &&
 327                         input->get_w() == 720 &&
 328                         (input->get_h() == 480 ||
 329                         input->get_h() == 576))
 330                 {
 331                         int norm = is_pal ? DV_PAL : DV_NTSC;
 332                         int data_size = is_pal ? DV_PAL_SIZE : DV_NTSC_SIZE;
 333                         temp_frame->allocate_compressed_data(data_size);
 334                         temp_frame->set_compressed_size(data_size);
 335
 336                         dv_write_video(encoder,
 337                                 temp_frame->get_data(),
 338                                 input->get_rows(),
 339                                 BC_YUV422,
 340                                 norm);
 341                         ptr = temp_frame;
 342                 }
 343                 else
 344 // Convert resolution and color model before compressing
 345                 {
 346                         if(!temp_frame2)
 347                         {
 348                                 int h = input->get_h();
 349 // Default to NTSC if unknown
 350                                 if(h != 480 && h != 576) h = 480;
 351
 352                                 temp_frame2 = new VFrame(0,
 353                                         720,
 354                                         h,
 355                                         BC_YUV422);
 356
 357                         }
 358
 359                         int norm = is_pal ? DV_PAL : DV_NTSC;
 360                         int data_size = is_pal ? DV_PAL_SIZE : DV_NTSC_SIZE;
 361                         temp_frame->allocate_compressed_data(data_size);
 362                         temp_frame->set_compressed_size(data_size);
 363
 364
 365                         cmodel_transfer(temp_frame2->get_rows(), /* Leave NULL if non existent */
 366                                 input->get_rows(),
 367                                 temp_frame2->get_y(), /* Leave NULL if non existent */
 368                                 temp_frame2->get_u(),
 369                                 temp_frame2->get_v(),
 370                                 input->get_y(), /* Leave NULL if non existent */
 371                                 input->get_u(),
 372                                 input->get_v(),
 373                                 0,        /* Dimensions to capture from input frame */
 374                                 0,
 375                                 MIN(temp_frame2->get_w(), input->get_w()),
 376                                 MIN(temp_frame2->get_h(), input->get_h()),
 377                                 0,       /* Dimensions to project on output frame */
 378                                 0,
 379                                 MIN(temp_frame2->get_w(), input->get_w()),
 380                                 MIN(temp_frame2->get_h(), input->get_h()),
 381                                 input->get_color_model(),
 382                                 BC_YUV422,
 383                                 0,         /* When transfering BC_RGBA8888 to non-alpha this is the background color in 0xRRGGBB hex */
 384                                 input->get_bytes_per_line(),       /* For planar use the luma rowspan */
 385                                 temp_frame2->get_bytes_per_line());     /* For planar use the luma rowspan */
 386
 387                         dv_write_video(encoder,
 388                                 temp_frame->get_data(),
 389                                 temp_frame2->get_rows(),
 390                                 BC_YUV422,
 391                                 norm);
 392
 393
 394
 395                         ptr = temp_frame;
 396                 }
 397         }
 398         else
 399                 ptr = input;
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411 // Take over buffer table
 412         buffer_lock->lock("IEC61883Output::write_frame 1");
 413         have_video = 1;
 414 // Wait for buffer to become available with timeout
 415         while(buffer_valid[current_inbuffer] && !result && !interrupted)
 416         {
 417                 buffer_lock->unlock();
 418                 result = video_lock->timed_lock(BUFFER_TIMEOUT);
 419                 buffer_lock->lock("IEC61883Output::write_frame 2");
 420         }
 421
 422
 423
 424 // Write buffer if there's room
 425         if(!buffer_valid[current_inbuffer])
 426         {
 427                 if(!buffer[current_inbuffer])
 428                 {
 429                         buffer[current_inbuffer] = new char[ptr->get_compressed_size()];
 430                         buffer_size[current_inbuffer] = ptr->get_compressed_size();
 431                 }
 432                 memcpy(buffer[current_inbuffer], ptr->get_data(), ptr->get_compressed_size());
 433                 buffer_valid[current_inbuffer] = 1;
 434                 increment_counter(&current_inbuffer);
 435         }
 436         else
 437 // Ignore it if there isn't room.
 438         {
 439                 ;
 440         }
 441
 442         buffer_lock->unlock();
 443         start_lock->unlock();
 444 //printf("IEC61883Output::write_frame 100\n");
 445 }
 446
 447 void IEC61883Output::write_samples(char *data, int samples)
 448 {
 449 //printf("IEC61883Output::write_samples 1\n");
 450         int result = 0;
 451         int timeout = (int64_t)samples *
 452                 (int64_t)1000000 *
 453                 (int64_t)2 /
 454                 (int64_t)samplerate;
 455         if(interrupted) return;
 456
 457 //printf("IEC61883Output::write_samples 2\n");
 458
 459 // Check for maximum sample count exceeded
 460         if(samples > OUTPUT_SAMPLES)
 461         {
 462                 printf("IEC61883Output::write_samples samples=%d > OUTPUT_SAMPLES=%d\n",
 463                         samples,
 464                         OUTPUT_SAMPLES);
 465                 return;
 466         }
 467
 468 //printf("IEC61883Output::write_samples 3\n");
 469 // Take over buffer table
 470         buffer_lock->lock("IEC61883Output::write_samples 1");
 471 // Wait for buffer to become available with timeout
 472         while(audio_samples > OUTPUT_SAMPLES - samples && !result && !interrupted)
 473         {
 474                 buffer_lock->unlock();
 475                 result = audio_lock->timed_lock(BUFFER_TIMEOUT);
 476                 buffer_lock->lock("IEC61883Output::write_samples 2");
 477         }
 478
 479         if(!interrupted && audio_samples <= OUTPUT_SAMPLES - samples)
 480         {
 481 //printf("IEC61883Output::write_samples 4 %d\n", audio_samples);
 482                 memcpy(audio_buffer + audio_samples * channels * bits / 8,
 483                         data,
 484                         samples * channels * bits / 8);
 485                 audio_samples += samples;
 486         }
 487         buffer_lock->unlock();
 488         start_lock->unlock();
 489 //printf("IEC61883Output::write_samples 100\n");
 490 }
 491
 492 long IEC61883Output::get_audio_position()
 493 {
 494         position_lock->lock("IEC61883Output::get_audio_position");
 495         long result = audio_position;
 496         position_lock->unlock();
 497         return result;
 498 }
 499
 500 void IEC61883Output::interrupt()
 501 {
 502         interrupted = 1;
 503 // Break write_samples out of a lock
 504         video_lock->unlock();
 505         audio_lock->unlock();
 506 // Playback should stop when the object is deleted.
 507 }
 508
 509 void IEC61883Output::flush()
 510 {
 511
 512 }
 513
 514 void IEC61883Output::increment_counter(int *counter)
 515 {
 516         (*counter)++;
 517         if(*counter >= total_buffers) *counter = 0;
 518 }
 519
 520 void IEC61883Output::decrement_counter(int *counter)
 521 {
 522         (*counter)--;
 523         if(*counter < 0) *counter = total_buffers - 1;
 524 }
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536 #endif // HAVE_FIREWIRE
 537
 538
 539
 540
 541
 542
 543 /*
 544 //      Local Variables:
 545 //      mode: C++
 546 //      c-file-style: "linux"
 547 //      End:
 548 */