cinelerra-5.1/cinelerra/audiodevice.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "audiodevice.h"
  23 #ifdef HAVE_FIREWIRE
  24 #include "audio1394.h"
  25 #endif
  26 #include "audioalsa.h"
  27 #include "audiodvb.h"
  28 #include "audiov4l2mpeg.h"
  29 #include "audioesound.h"
  30 #include "audiooss.h"
  31 #include "asset.h"
  32 #include "bctimer.h"
  33 #include "condition.h"
  34 #include "dcoffset.h"
  35 #include "edl.h"
  36 #include "edlsession.h"
  37 #include "mainmenu.h"
  38 #include "mutex.h"
  39 #include "mwindow.h"
  40 #include "mwindowgui.h"
  41 #include "playbackconfig.h"
  42 #include "preferences.h"
  43 #include "recordconfig.h"
  44 #include "recordgui.h"
  45 #include "record.h"
  46 #include "sema.h"
  47
  48
  49 AudioLowLevel::AudioLowLevel(AudioDevice *device)
  50 {
  51         this->device = device;
  52 }
  53
  54 AudioLowLevel::~AudioLowLevel()
  55 {
  56 }
  57
  58
  59 AudioDevice::AudioDevice(MWindow *mwindow)
  60 {
  61         initialize();
  62         this->mwindow = mwindow;
  63         this->out_config = new AudioOutConfig();
  64         this->in_config = new AudioInConfig;
  65         this->vconfig = new VideoInConfig;
  66         device_lock = new Mutex("AudioDevice::device_lock",1);
  67         timer_lock = new Mutex("AudioDevice::timer_lock");
  68         buffer_lock = new Mutex("AudioDevice::buffer_lock");
  69         polling_lock = new Condition(0, "AudioDevice::polling_lock");
  70         playback_timer = new Timer;
  71         record_timer = new Timer;
  72         for(int i = 0; i < TOTAL_AUDIO_BUFFERS; i++) {
  73                 output_buffer_t *obfr = &output[i];
  74                 obfr->play_lock = new Condition(0, "AudioDevice::play_lock");
  75                 obfr->arm_lock = new Condition(1, "AudioDevice::arm_lock");
  76         }
  77         reset_input();
  78         total_samples_read = 0;
  79         total_samples_input = 0;
  80         reset_output();
  81         total_samples_written = 0;
  82         total_samples_output = 0;
  83 }
  84
  85 AudioDevice::~AudioDevice()
  86 {
  87         stop_audio(0);
  88         delete out_config;
  89         delete in_config;
  90         delete vconfig;
  91         delete timer_lock;
  92         for( int i=0; i < TOTAL_AUDIO_BUFFERS; ++i ) {
  93                 output_buffer_t *obfr = &output[i];
  94                 delete obfr->play_lock;
  95                 delete obfr->arm_lock;
  96         }
  97         delete playback_timer;
  98         delete record_timer;
  99         delete buffer_lock;
 100         delete polling_lock;
 101         delete device_lock;
 102 }
 103
 104 int AudioDevice::initialize()
 105 {
 106         for(int i = 0; i < TOTAL_AUDIO_BUFFERS; i++) {
 107                 input[i].buffer = 0;
 108                 output[i].buffer = 0;
 109         }
 110         audio_in = audio_out = 0;
 111         in_bits = out_bits = 0;
 112         in_channels = out_channels = 0;
 113         in_samples = out_samples = 0;
 114         in_samplerate = out_samplerate = 0;
 115         in_realtime = out_realtime = 0;
 116         lowlevel_out = lowlevel_in = 0;
 117         in51_2 = out51_2 = 0;
 118         in_config_updated = 0;
 119         rec_dither = play_dither = 0;
 120         rec_gain = play_gain = 1.;
 121         r = w = 0;
 122         software_position_info = 0;
 123         vdevice = 0;
 124         sharing = 0;
 125         return 0;
 126 }
 127
 128
 129 void AudioThread::initialize()
 130 {
 131         device = 0;
 132         arun = 0;
 133         aend = 0;
 134         startup_lock = 0;
 135         started = 0;
 136 }
 137
 138
 139 AudioThread::
 140 AudioThread(AudioDevice *device,
 141         void (AudioDevice::*arun)(), void (AudioDevice::*aend)())
 142  : Thread(1, 0, 0)
 143 {
 144         initialize();
 145         startup_lock = new Condition(0, "AudioThread::startup_lock");
 146         this->device = device;
 147         this->arun = arun;
 148         this->aend = aend;
 149         Thread::start();
 150 }
 151
 152 AudioThread::~AudioThread()
 153 {
 154         delete startup_lock;
 155 }
 156
 157 void AudioThread::stop(int wait)
 158 {
 159         if( !wait ) (device->*aend)();
 160         startup();
 161         Thread::join();
 162 }
 163
 164 void AudioThread::run()
 165 {
 166         startup_lock->lock();
 167         (device->*arun)();
 168 }
 169
 170 void AudioThread::startup()
 171 {
 172         if( !started ) {
 173                 started = 1;
 174                 startup_lock->unlock();
 175         }
 176 }
 177
 178
 179 void AudioDevice::stop_input()
 180 {
 181         device_lock->lock("AudioDevice::stop_input");
 182         if( audio_in ) {
 183                 audio_in->stop(0);
 184                 delete audio_in;
 185                 audio_in = 0;
 186         }
 187         reset_input();
 188         device_lock->unlock();
 189 }
 190
 191 void AudioDevice::stop_output(int wait)
 192 {
 193         if( !wait ) playback_interrupted = 1;
 194         device_lock->lock("AudioDevice::stop_output");
 195         if( audio_out ) {
 196                 if( is_playing_back )
 197                         audio_out->stop(wait);
 198                 delete audio_out;
 199                 audio_out = 0;
 200         }
 201         reset_output();
 202         device_lock->unlock();
 203 }
 204
 205 int AudioDevice::stop_audio(int wait)
 206 {
 207         if( audio_in ) stop_input();
 208         if( audio_out ) stop_output(wait);
 209         return 0;
 210 }
 211
 212
 213 int AudioDevice::create_lowlevel(AudioLowLevel* &lowlevel, int driver,int in)
 214 {
 215         *(in ? &this->idriver : &this->odriver) = driver;
 216
 217         if(!lowlevel) {
 218                 switch(driver) {
 219 #ifdef HAVE_OSS
 220                 case AUDIO_OSS:
 221                 case AUDIO_OSS_ENVY24:
 222                         lowlevel = new AudioOSS(this);
 223                         break;
 224 #endif
 225
 226 #ifdef HAVE_ESOUND
 227                 case AUDIO_ESOUND:
 228                         lowlevel = new AudioESound(this);
 229                         break;
 230 #endif
 231                 case AUDIO_NAS:
 232                         break;
 233
 234 #ifdef HAVE_ALSA
 235                 case AUDIO_ALSA:
 236                         lowlevel = new AudioALSA(this);
 237                         break;
 238 #endif
 239
 240 #ifdef HAVE_FIREWIRE
 241                 case AUDIO_1394:
 242                 case AUDIO_DV1394:
 243                 case AUDIO_IEC61883:
 244                         lowlevel = new Audio1394(this);
 245                         break;
 246 #endif
 247
 248                 case AUDIO_DVB:
 249                         lowlevel = new AudioDVB(this);
 250                         break;
 251
 252                 case AUDIO_V4L2MPEG:
 253                         lowlevel = new AudioV4L2MPEG(this);
 254                         break;
 255                 }
 256         }
 257         return 0;
 258 }
 259
 260 int AudioDevice::open_input(AudioInConfig *config, VideoInConfig *vconfig,
 261         int rate, int samples, int channels, int realtime)
 262 {
 263         device_lock->lock("AudioDevice::open_input");
 264         r = 1;
 265         this->in_config->copy_from(config);
 266         this->vconfig->copy_from(vconfig);
 267         in_samplerate = rate;
 268         in_samples = samples;
 269         in_realtime = realtime;
 270         in51_2 = config->map51_2 && channels == 2;
 271         if( in51_2 ) channels = 6;
 272         in_channels = channels;
 273         rec_gain = config->rec_gain;
 274         create_lowlevel(lowlevel_in, config->driver, 1);
 275         lowlevel_in->open_input();
 276         in_config_updated = 0;
 277         record_timer->update();
 278         device_lock->unlock();
 279         return 0;
 280 }
 281
 282 int AudioDevice::open_output(AudioOutConfig *config,
 283         int rate, int samples, int channels, int realtime)
 284 {
 285         device_lock->lock("AudioDevice::open_output");
 286         w = 1;
 287         *this->out_config = *config;
 288         out_samplerate = rate;
 289         out_samples = samples;
 290         out51_2 = config->map51_2 && channels == 6;
 291         if( out51_2 ) channels = 2;
 292         out_channels = channels;
 293         out_realtime = realtime;
 294         play_gain = config->play_gain;
 295         create_lowlevel(lowlevel_out, config->driver,0);
 296         int result = lowlevel_out ? lowlevel_out->open_output() : 0;
 297         device_lock->unlock();
 298         return result;
 299 }
 300
 301 int AudioDevice::open_monitor(AudioOutConfig *config,int mode)
 302 {
 303         device_lock->lock("AudioDevice::open_output");
 304         w = 1;
 305         *this->out_config = *config;
 306         monitoring = mode;
 307         monitor_open = 0;
 308         device_lock->unlock();
 309         return 0;
 310 }
 311
 312
 313
 314 int AudioDevice::interrupt_crash()
 315 {
 316         if( lowlevel_in )
 317                 lowlevel_in->interrupt_crash();
 318         stop_input();
 319         return 0;
 320 }
 321
 322 double AudioDevice::get_itimestamp()
 323 {
 324         buffer_lock->lock("AudioDevice::get_itimestamp");
 325         timer_lock->lock("AudioDevice::get_otimestamp");
 326         input_buffer_t *ibfr = &input[input_buffer_out];
 327         int frame = get_ichannels() * get_ibits() / 8;
 328         int64_t samples = frame ? input_buffer_offset / frame : 0;
 329         double timestamp = !in_samplerate || ibfr->timestamp < 0. ? -1. :
 330                 ibfr->timestamp + (double) samples / in_samplerate;
 331         timer_lock->unlock();
 332         buffer_lock->unlock();
 333         return timestamp;
 334 }
 335
 336 double AudioDevice::get_otimestamp()
 337 {
 338         buffer_lock->lock("AudioDevice::get_otimestamp");
 339         timer_lock->lock("AudioDevice::get_otimestamp");
 340         int64_t unplayed_samples = total_samples_output - current_position();
 341         double unplayed_time = !out_samplerate || last_buffer_time < 0. ? -1. :
 342                 (double)unplayed_samples / out_samplerate;
 343         double timestamp = last_buffer_time - unplayed_time;
 344         timer_lock->unlock();
 345         buffer_lock->unlock();
 346         return timestamp;
 347 }
 348
 349 double AudioDevice::device_timestamp()
 350 {
 351         return lowlevel_in ? lowlevel_in->device_timestamp() : -1.;
 352 }
 353
 354 int AudioDevice::close_all()
 355 {
 356         device_lock->lock("AudioDevice::close_all");
 357         stop_audio(0);
 358         if( lowlevel_in ) {
 359                 lowlevel_in->close_all();
 360                 delete lowlevel_in;
 361                 lowlevel_in = 0;
 362         }
 363         if( lowlevel_out )
 364         {
 365                 lowlevel_out->close_all();
 366                 delete lowlevel_out;
 367                 lowlevel_out = 0;
 368         }
 369         initialize();
 370         device_lock->unlock();
 371         return 0;
 372 }
 373
 374 void AudioDevice::auto_update(int channels, int samplerate, int bits)
 375 {
 376         if( !in_config || !in_config->follow_audio ) return;
 377         in_channels = channels;
 378         in_samplerate = samplerate;
 379         in_bits = bits;
 380         in_config_updated = 1;
 381         polling_lock->unlock();
 382 }
 383
 384 int AudioDevice::config_updated()
 385 {
 386         if( !in_config || !in_config->follow_audio ) return 0;
 387         return in_config_updated;
 388 }
 389
 390 void AudioDevice::config_update()
 391 {
 392         in_config_updated = 0;
 393         AudioInConfig *aconfig_in = mwindow->edl->session->aconfig_in;
 394         in51_2 = aconfig_in->map51_2 && in_channels == 6 ? 1 : 0;
 395         int ichannels = in51_2 ? 2 : in_channels;
 396         AudioOutConfig *aconfig_out = mwindow->edl->session->playback_config->aconfig;
 397         out51_2 = aconfig_out->map51_2 && ichannels == 6 ? 1 : 0;
 398         aconfig_in->in_samplerate = in_samplerate;
 399         aconfig_in->channels = ichannels;
 400         aconfig_in->oss_in_bits = in_bits;
 401         aconfig_in->alsa_in_bits = in_bits;
 402         total_samples_read = 0;
 403         total_samples_input = 0;
 404         monitor_open = 0;
 405 }
 406
 407 int AudioDevice::start_toc(const char *path, const char *toc_path)
 408 {
 409         return lowlevel_in ? lowlevel_in->start_toc(path, toc_path) : -1;
 410 }
 411
 412 int AudioDevice::start_record(int fd, int bsz)
 413 {
 414         return lowlevel_in ? lowlevel_in->start_record(fd, bsz) : -1;
 415 }
 416
 417 int AudioDevice::stop_record()
 418 {
 419         return lowlevel_in ? lowlevel_in->stop_record() : -1;
 420 }
 421
 422 int AudioDevice::total_audio_channels()
 423 {
 424         return lowlevel_in ? lowlevel_in->total_audio_channels() : 0;
 425 }
 426
 427 DeviceMPEGInput *AudioDevice::mpeg_device()
 428 {
 429         return lowlevel_in ? lowlevel_in->mpeg_device() : 0;
 430 }
 431