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         stop(0);
 155         delete startup_lock;
 156 }
 157
 158 void AudioThread::stop(int wait)
 159 {
 160         if( !wait ) (device->*aend)();
 161         startup();
 162         Thread::join();
 163 }
 164
 165 void AudioThread::run()
 166 {
 167         startup_lock->lock();
 168         (device->*arun)();
 169 }
 170
 171 void AudioThread::startup()
 172 {
 173         if( !started ) {
 174                 started = 1;
 175                 startup_lock->unlock();
 176         }
 177 }
 178
 179
 180 void AudioDevice::stop_input()
 181 {
 182         device_lock->lock("AudioDevice::stop_input");
 183         if( audio_in ) {
 184                 audio_in->stop(0);
 185                 delete audio_in;
 186                 audio_in = 0;
 187         }
 188         reset_input();
 189         device_lock->unlock();
 190 }
 191
 192 void AudioDevice::stop_output(int wait)
 193 {
 194         if( !wait ) playback_interrupted = 1;
 195         device_lock->lock("AudioDevice::stop_output");
 196         if( audio_out ) {
 197                 if( is_playing_back )
 198                         audio_out->stop(wait);
 199                 delete audio_out;
 200                 audio_out = 0;
 201         }
 202         reset_output();
 203         device_lock->unlock();
 204 }
 205
 206 int AudioDevice::stop_audio(int wait)
 207 {
 208         if( audio_in ) stop_input();
 209         if( audio_out ) stop_output(wait);
 210         return 0;
 211 }
 212
 213
 214 int AudioDevice::create_lowlevel(AudioLowLevel* &lowlevel, int driver,int in)
 215 {
 216         *(in ? &this->idriver : &this->odriver) = driver;
 217
 218         if(!lowlevel) {
 219                 switch(driver) {
 220 #ifdef HAVE_OSS
 221                 case AUDIO_OSS:
 222                 case AUDIO_OSS_ENVY24:
 223                         lowlevel = new AudioOSS(this);
 224                         break;
 225 #endif
 226
 227 #ifdef HAVE_ESOUND
 228                 case AUDIO_ESOUND:
 229                         lowlevel = new AudioESound(this);
 230                         break;
 231 #endif
 232                 case AUDIO_NAS:
 233                         break;
 234
 235 #ifdef HAVE_ALSA
 236                 case AUDIO_ALSA:
 237                         lowlevel = new AudioALSA(this);
 238                         break;
 239 #endif
 240
 241 #ifdef HAVE_FIREWIRE
 242                 case AUDIO_1394:
 243                 case AUDIO_DV1394:
 244                 case AUDIO_IEC61883:
 245                         lowlevel = new Audio1394(this);
 246                         break;
 247 #endif
 248
 249 #ifdef HAVE_DVB
 250                 case AUDIO_DVB:
 251                         lowlevel = new AudioDVB(this);
 252                         break;
 253 #endif
 254
 255 #ifdef HAVE_VIDEO4LINUX2
 256                 case AUDIO_V4L2MPEG:
 257                         lowlevel = new AudioV4L2MPEG(this);
 258                         break;
 259 #endif
 260                 }
 261         }
 262         return 0;
 263 }
 264
 265 int AudioDevice::open_input(AudioInConfig *config, VideoInConfig *vconfig,
 266         int rate, int samples, int channels, int realtime)
 267 {
 268         device_lock->lock("AudioDevice::open_input");
 269         r = 1;
 270         this->in_config->copy_from(config);
 271         this->vconfig->copy_from(vconfig);
 272         in_samplerate = rate;
 273         in_samples = samples;
 274         in_realtime = realtime;
 275         in51_2 = config->map51_2 && channels == 2;
 276         if( in51_2 ) channels = 6;
 277         in_channels = channels;
 278         rec_gain = config->rec_gain;
 279         create_lowlevel(lowlevel_in, config->driver, 1);
 280         lowlevel_in->open_input();
 281         in_config_updated = 0;
 282         record_timer->update();
 283         device_lock->unlock();
 284         return 0;
 285 }
 286
 287 int AudioDevice::open_output(AudioOutConfig *config,
 288         int rate, int samples, int channels, int realtime)
 289 {
 290         device_lock->lock("AudioDevice::open_output");
 291         w = 1;
 292         *this->out_config = *config;
 293         out_samplerate = rate;
 294         out_samples = samples;
 295         out51_2 = config->map51_2 && channels == 6;
 296         if( out51_2 ) channels = 2;
 297         out_channels = channels;
 298         out_realtime = realtime;
 299         play_gain = config->play_gain;
 300         create_lowlevel(lowlevel_out, config->driver,0);
 301         int result = lowlevel_out ? lowlevel_out->open_output() : 0;
 302         device_lock->unlock();
 303         return result;
 304 }
 305
 306 int AudioDevice::open_monitor(AudioOutConfig *config,int mode)
 307 {
 308         device_lock->lock("AudioDevice::open_output");
 309         w = 1;
 310         *this->out_config = *config;
 311         monitoring = mode;
 312         monitor_open = 0;
 313         device_lock->unlock();
 314         return 0;
 315 }
 316
 317
 318
 319 int AudioDevice::interrupt_crash()
 320 {
 321         if( lowlevel_in )
 322                 lowlevel_in->interrupt_crash();
 323         stop_input();
 324         return 0;
 325 }
 326
 327 double AudioDevice::get_itimestamp()
 328 {
 329         buffer_lock->lock("AudioDevice::get_itimestamp");
 330         timer_lock->lock("AudioDevice::get_otimestamp");
 331         input_buffer_t *ibfr = &input[input_buffer_out];
 332         int frame = get_ichannels() * get_ibits() / 8;
 333         int64_t samples = frame ? input_buffer_offset / frame : 0;
 334         double timestamp = !in_samplerate || ibfr->timestamp < 0. ? -1. :
 335                 ibfr->timestamp + (double) samples / in_samplerate;
 336         timer_lock->unlock();
 337         buffer_lock->unlock();
 338         return timestamp;
 339 }
 340
 341 double AudioDevice::get_otimestamp()
 342 {
 343         buffer_lock->lock("AudioDevice::get_otimestamp");
 344         timer_lock->lock("AudioDevice::get_otimestamp");
 345         int64_t unplayed_samples = total_samples_output - current_position();
 346         double unplayed_time = !out_samplerate || last_buffer_time < 0. ? -1. :
 347                 (double)unplayed_samples / out_samplerate;
 348         double timestamp = last_buffer_time - unplayed_time;
 349         timer_lock->unlock();
 350         buffer_lock->unlock();
 351         return timestamp;
 352 }
 353
 354 double AudioDevice::device_timestamp()
 355 {
 356         return lowlevel_in ? lowlevel_in->device_timestamp() : -1.;
 357 }
 358
 359 int AudioDevice::close_all()
 360 {
 361         device_lock->lock("AudioDevice::close_all");
 362         stop_audio(0);
 363         if( lowlevel_in ) {
 364                 lowlevel_in->close_all();
 365                 delete lowlevel_in;
 366                 lowlevel_in = 0;
 367         }
 368         if( lowlevel_out )
 369         {
 370                 lowlevel_out->close_all();
 371                 delete lowlevel_out;
 372                 lowlevel_out = 0;
 373         }
 374         initialize();
 375         device_lock->unlock();
 376         return 0;
 377 }
 378
 379 void AudioDevice::auto_update(int channels, int samplerate, int bits)
 380 {
 381         if( !in_config || !in_config->follow_audio ) return;
 382         in_channels = channels;
 383         in_samplerate = samplerate;
 384         in_bits = bits;
 385         in_config_updated = 1;
 386         polling_lock->unlock();
 387 }
 388
 389 int AudioDevice::config_updated()
 390 {
 391         if( !in_config || !in_config->follow_audio ) return 0;
 392         return in_config_updated;
 393 }
 394
 395 void AudioDevice::config_update()
 396 {
 397         in_config_updated = 0;
 398         AudioInConfig *aconfig_in = mwindow->edl->session->aconfig_in;
 399         in51_2 = aconfig_in->map51_2 && in_channels == 6 ? 1 : 0;
 400         int ichannels = in51_2 ? 2 : in_channels;
 401         AudioOutConfig *aconfig_out = mwindow->edl->session->playback_config->aconfig;
 402         out51_2 = aconfig_out->map51_2 && ichannels == 6 ? 1 : 0;
 403         aconfig_in->in_samplerate = in_samplerate;
 404         aconfig_in->channels = ichannels;
 405         aconfig_in->oss_in_bits = in_bits;
 406         aconfig_in->alsa_in_bits = in_bits;
 407         total_samples_read = 0;
 408         total_samples_input = 0;
 409         monitor_open = 0;
 410 }
 411
 412 int AudioDevice::start_toc(const char *path, const char *toc_path)
 413 {
 414         return lowlevel_in ? lowlevel_in->start_toc(path, toc_path) : -1;
 415 }
 416
 417 int AudioDevice::start_record(int fd, int bsz)
 418 {
 419         return lowlevel_in ? lowlevel_in->start_record(fd, bsz) : -1;
 420 }
 421
 422 int AudioDevice::stop_record()
 423 {
 424         return lowlevel_in ? lowlevel_in->stop_record() : -1;
 425 }
 426
 427 int AudioDevice::total_audio_channels()
 428 {
 429         return lowlevel_in ? lowlevel_in->total_audio_channels() : 0;
 430 }
 431
 432 DeviceMPEGInput *AudioDevice::mpeg_device()
 433 {
 434         return lowlevel_in ? lowlevel_in->mpeg_device() : 0;
 435 }
 436