git.sesse.net Git - kdenlive/blob - src/mltdevicecapture.cpp

   1 /***************************************************************************
   2                         mltdevicecapture.cpp  -  description
   3                            -------------------
   4    begin                : Sun May 21 2011
   5    copyright            : (C) 2011 by Jean-Baptiste Mardelle (jb@kdenlive.org)
   6
   7 ***************************************************************************/
   8
   9 /***************************************************************************
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  ***************************************************************************/
  17
  18
  19 #include "mltdevicecapture.h"
  20 #include "kdenlivesettings.h"
  21 #include "definitions.h"
  22 //#include "recmonitor.h"
  23 //#include "renderer.h"
  24 #include "blackmagic/devices.h"
  25
  26 #include <mlt++/Mlt.h>
  27
  28 #include <KDebug>
  29 #include <KStandardDirs>
  30 #include <KMessageBox>
  31 #include <KLocale>
  32 #include <KTemporaryFile>
  33
  34 #include <QTimer>
  35 #include <QDir>
  36 #include <QString>
  37 #include <QApplication>
  38
  39 #include <cstdlib>
  40 #include <cstdarg>
  41
  42 #include <QDebug>
  43
  44
  45
  46 static void consumer_gl_frame_show(mlt_consumer, MltDeviceCapture * self, mlt_frame frame_ptr)
  47 {
  48     // detect if the producer has finished playing. Is there a better way to do it?
  49     Mlt::Frame frame(frame_ptr);
  50     self->showFrame(frame);
  51 }
  52
  53 static void rec_consumer_frame_show(mlt_consumer, MltDeviceCapture * self, mlt_frame frame_ptr)
  54 {
  55     Mlt::Frame frame(frame_ptr);
  56     if (!frame.is_valid()) return;
  57     self->gotCapturedFrame(frame);
  58 }
  59
  60 static void rec_consumer_frame_preview(mlt_consumer, MltDeviceCapture * self, mlt_frame frame_ptr)
  61 {
  62     Mlt::Frame frame(frame_ptr);
  63     if (!frame.is_valid()) return;
  64     if (self->sendFrameForAnalysis && frame_ptr->convert_image) {
  65         self->emitFrameUpdated(frame);
  66     }
  67     if (self->doCapture > 0) {
  68         self->doCapture --;
  69         if (self->doCapture == 0) self->saveFrame(frame);
  70     }
  71
  72 /*    if (self->analyseAudio) {
  73         self->showAudio(frame);
  74     }
  75     if (frame.get_double("_speed") == 0.0) {
  76         self->emitConsumerStopped();
  77     } else if (frame.get_double("_speed") < 0.0 && mlt_frame_get_position(frame_ptr) <= 0) {
  78         self->pause();
  79         self->emitConsumerStopped();
  80     }*/
  81 }
  82
  83
  84 MltDeviceCapture::MltDeviceCapture(QString profile, VideoPreviewContainer *surface, QWidget *parent) :
  85     AbstractRender(parent),
  86     doCapture(0),
  87     sendFrameForAnalysis(false),
  88     m_mltConsumer(NULL),
  89     m_mltProducer(NULL),
  90     m_mltProfile(NULL),
  91     m_captureDisplayWidget(surface),
  92     m_winid((int) surface->winId()),
  93     m_analyseAudio(KdenliveSettings::monitor_audio())
  94 {
  95     if (profile.isEmpty()) profile = KdenliveSettings::current_profile();
  96     buildConsumer(profile);
  97 }
  98
  99 MltDeviceCapture::~MltDeviceCapture()
 100 {
 101     if (m_mltConsumer) delete m_mltConsumer;
 102     if (m_mltProducer) delete m_mltProducer;
 103     if (m_mltProfile) delete m_mltProfile;
 104 }
 105
 106 void MltDeviceCapture::buildConsumer(const QString &profileName)
 107 {
 108     if (!profileName.isEmpty()) m_activeProfile = profileName;
 109
 110     if (m_mltProfile) delete m_mltProfile;
 111
 112     char *tmp = qstrdup(m_activeProfile.toUtf8().constData());
 113     setenv("MLT_PROFILE", tmp, 1);
 114     m_mltProfile = new Mlt::Profile(tmp);
 115     m_mltProfile->get_profile()->is_explicit = 1;
 116     delete[] tmp;
 117
 118     QString videoDriver = KdenliveSettings::videodrivername();
 119     if (!videoDriver.isEmpty()) {
 120         if (videoDriver == "x11_noaccel") {
 121             setenv("SDL_VIDEO_YUV_HWACCEL", "0", 1);
 122             videoDriver = "x11";
 123         } else {
 124             unsetenv("SDL_VIDEO_YUV_HWACCEL");
 125         }
 126     }
 127     setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 1);
 128
 129     if (m_winid == 0) {
 130         // OpenGL monitor
 131         m_mltConsumer = new Mlt::Consumer(*m_mltProfile, "sdl_audio");
 132         m_mltConsumer->set("preview_off", 1);
 133         m_mltConsumer->set("preview_format", mlt_image_rgb24a);
 134         m_mltConsumer->listen("consumer-frame-show", this, (mlt_listener) consumer_gl_frame_show);
 135     } else {
 136         m_mltConsumer = new Mlt::Consumer(*m_mltProfile, "sdl_preview");
 137         m_mltConsumer->set("window_id", m_winid);
 138     }
 139     m_mltConsumer->set("resize", 1);
 140     //m_mltConsumer->set("terminate_on_pause", 1);
 141     m_mltConsumer->set("window_background", KdenliveSettings::window_background().name().toUtf8().constData());
 142     m_mltConsumer->set("rescale", "nearest");
 143
 144     m_mltConsumer->listen("consumer-frame-show", this, (mlt_listener) rec_consumer_frame_preview);
 145
 146     QString audioDevice = KdenliveSettings::audiodevicename();
 147     if (!audioDevice.isEmpty())
 148         m_mltConsumer->set("audio_device", audioDevice.toUtf8().constData());
 149
 150     if (!videoDriver.isEmpty())
 151         m_mltConsumer->set("video_driver", videoDriver.toUtf8().constData());
 152
 153     QString audioDriver = KdenliveSettings::audiodrivername();
 154
 155     if (!audioDriver.isEmpty())
 156         m_mltConsumer->set("audio_driver", audioDriver.toUtf8().constData());
 157
 158     //m_mltConsumer->set("progressive", 1);
 159     //m_mltConsumer->set("buffer", 1);
 160     //m_mltConsumer->set("real_time", 0);
 161 }
 162
 163 void MltDeviceCapture::stop()
 164 {
 165     bool isPlaylist = false;
 166     if (m_mltConsumer) {
 167         m_mltConsumer->set("refresh", 0);
 168         m_mltConsumer->stop();
 169         //if (!m_mltConsumer->is_stopped()) m_mltConsumer->stop();
 170     }
 171     if (m_mltProducer) {
 172         QList <Mlt::Producer *> prods;
 173         Mlt::Service service(m_mltProducer->parent().get_service());
 174         mlt_service_lock(service.get_service());
 175         if (service.type() == tractor_type) {
 176             isPlaylist = true;
 177             Mlt::Tractor tractor(service);
 178             mlt_tractor_close(tractor.get_tractor());
 179             Mlt::Field *field = tractor.field();
 180             mlt_service nextservice = mlt_service_get_producer(service.get_service());
 181             mlt_service nextservicetodisconnect;
 182             mlt_properties properties = MLT_SERVICE_PROPERTIES(nextservice);
 183             QString mlt_type = mlt_properties_get(properties, "mlt_type");
 184             QString resource = mlt_properties_get(properties, "mlt_service");
 185             // Delete all transitions
 186             while (mlt_type == "transition") {
 187                 nextservicetodisconnect = nextservice;
 188                 nextservice = mlt_service_producer(nextservice);
 189                 mlt_field_disconnect_service(field->get_field(), nextservicetodisconnect);
 190                 if (nextservice == NULL) break;
 191                 properties = MLT_SERVICE_PROPERTIES(nextservice);
 192                 mlt_type = mlt_properties_get(properties, "mlt_type");
 193                 resource = mlt_properties_get(properties, "mlt_service");
 194             }
 195             for (int trackNb = tractor.count() - 1; trackNb >= 0; --trackNb) {
 196                 Mlt::Producer trackProducer(tractor.track(trackNb));
 197                 Mlt::Playlist trackPlaylist((mlt_playlist) trackProducer.get_service());
 198                 if (trackPlaylist.type() == playlist_type) {
 199                     for (int i = 0; i < trackPlaylist.count();i++) {
 200                         // We need to manually decrease the ref count and close the producer, otherwise
 201                         // the video4linux device stays open, seems like a bug in MLT that is not cleaning properly
 202                         mlt_properties props = MLT_PRODUCER_PROPERTIES(trackPlaylist.get_clip(i)->get_parent());
 203                         while (mlt_properties_ref_count(props) > 0) mlt_properties_dec_ref(props);
 204                         if (trackPlaylist.get_clip(i)) mlt_producer_close(trackPlaylist.get_clip(i)->get_parent());
 205                     }
 206                     mlt_playlist_close(trackPlaylist.get_playlist());
 207                     //trackPlaylist.clear();
 208                 }
 209             }
 210             delete field;
 211             field = NULL;
 212         }
 213         mlt_service_unlock(service.get_service());
 214         delete m_mltProducer;
 215         m_mltProducer = NULL;
 216     }
 217     // For some reason, the consumer seems to be deleted by previous stuff when in playlist mode
 218     if (!isPlaylist) delete m_mltConsumer;
 219     m_mltConsumer = NULL;
 220 }
 221
 222
 223 void MltDeviceCapture::doRefresh()
 224 {
 225     if (m_mltConsumer) m_mltConsumer->set("refresh", 1);
 226 }
 227
 228
 229 void MltDeviceCapture::emitFrameUpdated(Mlt::Frame& frame)
 230 {
 231     mlt_image_format format = mlt_image_rgb24a;
 232     int width = 0;
 233     int height = 0;
 234     const uchar* image = frame.get_image(format, width, height);
 235     QImage qimage(width, height, QImage::Format_ARGB32);
 236     memcpy(qimage.bits(), image, width * height * 4);
 237     emit frameUpdated(qimage.rgbSwapped());
 238 }
 239
 240 void MltDeviceCapture::showFrame(Mlt::Frame& frame)
 241 {
 242     mlt_image_format format = mlt_image_rgb24a;
 243     int width = 0;
 244     int height = 0;
 245     const uchar* image = frame.get_image(format, width, height);
 246     QImage qimage(width, height, QImage::Format_ARGB32_Premultiplied);
 247     memcpy(qimage.scanLine(0), image, width * height * 4);
 248     emit showImageSignal(qimage);
 249     if (m_analyseAudio) showAudio(frame);
 250     if (sendFrameForAnalysis && frame.get_frame()->convert_image) {
 251         emit frameUpdated(qimage.rgbSwapped());
 252     }
 253 }
 254
 255 void MltDeviceCapture::showAudio(Mlt::Frame& frame)
 256 {
 257     if (!frame.is_valid() || frame.get_int("test_audio") != 0) {
 258         return;
 259     }
 260     mlt_audio_format audio_format = mlt_audio_s16;
 261     int freq = 0;
 262     int num_channels = 0;
 263     int samples = 0;
 264     int16_t* data = (int16_t*)frame.get_audio(audio_format, freq, num_channels, samples);
 265
 266     if (!data) {
 267         return;
 268     }
 269
 270     // Data format: [ c00 c10 c01 c11 c02 c12 c03 c13 ... c0{samples-1} c1{samples-1} for 2 channels.
 271     // So the vector is of size samples*channels.
 272     QVector<int16_t> sampleVector(samples*num_channels);
 273     memcpy(sampleVector.data(), data, samples*num_channels*sizeof(int16_t));
 274
 275     if (samples > 0) {
 276         emit audioSamplesSignal(sampleVector, freq, num_channels, samples);
 277     }
 278 }
 279
 280 bool MltDeviceCapture::slotStartPreview(const QString &producer, bool xmlFormat)
 281 {
 282     if (m_mltConsumer == NULL) buildConsumer();
 283     char *tmp = qstrdup(producer.toUtf8().constData());
 284     if (xmlFormat) m_mltProducer = new Mlt::Producer(*m_mltProfile, "xml-string", tmp);
 285     else m_mltProducer = new Mlt::Producer(*m_mltProfile, tmp);
 286     delete[] tmp;
 287
 288     if (m_mltProducer == NULL || !m_mltProducer->is_valid()) {
 289         kDebug()<<"//// ERROR CREATRING PROD";
 290         return false;
 291     }
 292     m_mltConsumer->connect(*m_mltProducer);
 293     if (m_mltConsumer->start() == -1) {
 294         delete m_mltConsumer;
 295         m_mltConsumer = NULL;
 296         return 0;
 297     }
 298     return 1;
 299 }
 300
 301 void MltDeviceCapture::gotCapturedFrame(Mlt::Frame& frame)
 302 {
 303     mlt_image_format format = mlt_image_rgb24a;
 304     int width = 0;
 305     int height = 0;
 306     const uchar* image = frame.get_image(format, width, height);
 307     QImage qimage(width, height, QImage::Format_ARGB32);
 308     memcpy(qimage.bits(), image, width * height * 4);
 309     m_captureDisplayWidget->setImage(qimage.rgbSwapped());
 310 }
 311
 312 void MltDeviceCapture::saveFrame(Mlt::Frame& frame)
 313 {
 314     mlt_image_format format = mlt_image_rgb24a;
 315     int width = 0;
 316     int height = 0;
 317     const uchar* image = frame.get_image(format, width, height);
 318     QImage qimage(width, height, QImage::Format_ARGB32);
 319     memcpy(qimage.bits(), image, width * height * 4);
 320
 321     // Re-enable overlay
 322     Mlt::Service service(m_mltProducer->parent().get_service());
 323     Mlt::Tractor tractor(service);
 324     Mlt::Producer trackProducer(tractor.track(0));
 325     trackProducer.set("hide", 0);
 326
 327     qimage.rgbSwapped().save(m_capturePath);
 328     emit frameSaved(m_capturePath);
 329     m_capturePath.clear();
 330 }
 331
 332 void MltDeviceCapture::captureFrame(const QString &path)
 333 {
 334     if (m_mltProducer == NULL || !m_mltProducer->is_valid()) return;
 335
 336     // Hide overlay track before doing the capture
 337     Mlt::Service service(m_mltProducer->parent().get_service());
 338     Mlt::Tractor tractor(service);
 339     Mlt::Producer trackProducer(tractor.track(0));
 340     mlt_service_lock(service.get_service());
 341     trackProducer.set("hide", 1);
 342     m_mltConsumer->purge();
 343     mlt_service_unlock(service.get_service());
 344     m_capturePath = path;
 345     // Wait for 5 frames before capture to make sure overlay is gone
 346     doCapture = 5;
 347 }
 348
 349 bool MltDeviceCapture::slotStartCapture(const QString &params, const QString &path, const QString &playlist)
 350 {
 351     stop();
 352     if (m_mltProfile) delete m_mltProfile;
 353     char *tmp = qstrdup(m_activeProfile.toUtf8().constData());
 354     m_mltProfile = new Mlt::Profile(tmp);
 355     delete[] tmp;
 356     m_mltProfile->get_profile()->is_explicit = 1;
 357     kDebug()<<"-- CREATING CAP: "<<params<<", PATH: "<<path;
 358     tmp = qstrdup(QString("avformat:" + path).toUtf8().constData());
 359     m_mltConsumer = new Mlt::Consumer(*m_mltProfile, tmp);
 360     m_mltConsumer->set("terminate_on_pause", 1);
 361     delete[] tmp;
 362
 363     QStringList paramList = params.split(" ", QString::SkipEmptyParts);
 364     char *tmp2;
 365     for (int i = 0; i < paramList.count(); i++) {
 366         tmp = qstrdup(paramList.at(i).section("=", 0, 0).toUtf8().constData());
 367         tmp2 = qstrdup(paramList.at(i).section("=", 1, 1).toUtf8().constData());
 368         m_mltConsumer->set(tmp, tmp2);
 369         delete[] tmp;
 370         delete[] tmp2;
 371     }
 372
 373     if (m_mltConsumer == NULL || !m_mltConsumer->is_valid()) {
 374         if (m_mltConsumer) {
 375             delete m_mltConsumer;
 376             m_mltConsumer = NULL;
 377         }
 378         return false;
 379     }
 380
 381     // FIXME: the event object returned by the listen gets leaked...
 382     m_mltConsumer->listen("consumer-frame-show", this, (mlt_listener) rec_consumer_frame_show);
 383     tmp = qstrdup(playlist.toUtf8().constData());
 384     m_mltProducer = new Mlt::Producer(*m_mltProfile, "xml-string", tmp);
 385     delete[] tmp;
 386
 387     if (m_mltProducer == NULL || !m_mltProducer->is_valid()) {
 388         kDebug()<<"//// ERROR CREATRING PROD";
 389         return false;
 390     }
 391
 392     m_mltConsumer->connect(*m_mltProducer);
 393     if (m_mltConsumer->start() == -1) {
 394         delete m_mltConsumer;
 395         m_mltConsumer = NULL;
 396         return 0;
 397     }
 398     return 1;
 399 }
 400
 401
 402 void MltDeviceCapture::setOverlay(const QString &path)
 403 {
 404     if (m_mltProducer == NULL || !m_mltProducer->is_valid()) return;
 405     Mlt::Producer parentProd(m_mltProducer->parent());
 406     if (parentProd.get_producer() == NULL) {
 407         kDebug() << "PLAYLIST BROKEN, CANNOT INSERT CLIP //////";
 408         return;
 409     }
 410
 411     Mlt::Service service(parentProd.get_service());
 412     if (service.type() != tractor_type) {
 413         kWarning() << "// TRACTOR PROBLEM";
 414         return;
 415     }
 416     Mlt::Tractor tractor(service);
 417     if ( tractor.count() < 2) {
 418         kWarning() << "// TRACTOR PROBLEM";
 419         return;
 420     }
 421     mlt_service_lock(service.get_service());
 422     Mlt::Producer trackProducer(tractor.track(0));
 423     Mlt::Playlist trackPlaylist((mlt_playlist) trackProducer.get_service());
 424
 425     trackPlaylist.remove(0);
 426     if (path.isEmpty()) {
 427         mlt_service_unlock(service.get_service());
 428         return;
 429     }
 430
 431     // Add overlay clip
 432     char *tmp = qstrdup(path.toUtf8().constData());
 433     Mlt::Producer *clip = new Mlt::Producer (*m_mltProfile, "loader", tmp);
 434     delete[] tmp;
 435     clip->set_in_and_out(0, 99999);
 436     trackPlaylist.insert_at(0, clip, 1);
 437
 438     // Add transition
 439     mlt_service serv = m_mltProducer->parent().get_service();
 440     mlt_service nextservice = mlt_service_get_producer(serv);
 441     mlt_properties properties = MLT_SERVICE_PROPERTIES(nextservice);
 442     QString mlt_type = mlt_properties_get(properties, "mlt_type");
 443     if (mlt_type != "transition") {
 444         // transition does not exist, add it
 445         Mlt::Field *field = tractor.field();
 446         Mlt::Transition *transition = new Mlt::Transition(*m_mltProfile, "composite");
 447         transition->set_in_and_out(0, 0);
 448         transition->set("geometry", "0,0:100%x100%:70");
 449         transition->set("fill", 1);
 450         transition->set("operator", "and");
 451         transition->set("a_track", 0);
 452         transition->set("b_track", 1);
 453         field->plant_transition(*transition, 0, 1);
 454     }
 455     mlt_service_unlock(service.get_service());
 456     //delete clip;
 457 }
 458
 459 void MltDeviceCapture::setOverlayEffect(const QString tag, QStringList parameters)
 460 {
 461     if (m_mltProducer == NULL || !m_mltProducer->is_valid()) return;
 462     Mlt::Service service(m_mltProducer->parent().get_service());
 463     Mlt::Tractor tractor(service);
 464     Mlt::Producer trackProducer(tractor.track(0));
 465     Mlt::Playlist trackPlaylist((mlt_playlist) trackProducer.get_service());
 466     Mlt::Service trackService(trackProducer.get_service());
 467
 468     mlt_service_lock(service.get_service());
 469
 470     // delete previous effects
 471     Mlt::Filter *filter;
 472     filter = trackService.filter(0);
 473     if (filter && !tag.isEmpty()) {
 474         QString currentService = filter->get("mlt_service");
 475         if (currentService == tag) {
 476             // Effect is already there
 477             mlt_service_unlock(service.get_service());
 478             return;
 479         }
 480     }
 481     while (filter) {
 482         trackService.detach(*filter);
 483         delete filter;
 484         filter = trackService.filter(0);
 485     }
 486
 487     if (tag.isEmpty()) {
 488         mlt_service_unlock(service.get_service());
 489         return;
 490     }
 491
 492     char *tmp = qstrdup(tag.toUtf8().constData());
 493     filter = new Mlt::Filter(*m_mltProfile, tmp);
 494     delete[] tmp;
 495     if (filter && filter->is_valid()) {
 496         for (int j = 0; j < parameters.count(); j++) {
 497             filter->set(parameters.at(j).section("=", 0, 0).toUtf8().constData(), parameters.at(j).section("=", 1, 1).toUtf8().constData());
 498         }
 499         trackService.attach(*filter);
 500     }
 501     mlt_service_unlock(service.get_service());
 502 }
 503
 504 void MltDeviceCapture::mirror(bool activate)
 505 {
 506     if (m_mltProducer == NULL || !m_mltProducer->is_valid()) return;
 507     Mlt::Service service(m_mltProducer->parent().get_service());
 508     Mlt::Tractor tractor(service);
 509     Mlt::Producer trackProducer(tractor.track(1));
 510     Mlt::Playlist trackPlaylist((mlt_playlist) trackProducer.get_service());
 511     Mlt::Service trackService(trackProducer.get_service());
 512
 513     mlt_service_lock(service.get_service());
 514
 515     // delete previous effects
 516     Mlt::Filter *filter;
 517     filter = trackService.filter(0);
 518     while (filter) {
 519         trackService.detach(*filter);
 520         delete filter;
 521         filter = trackService.filter(0);
 522     }
 523
 524     if (!activate) {
 525         mlt_service_unlock(service.get_service());
 526         return;
 527     }
 528
 529     filter = new Mlt::Filter(*m_mltProfile, "mirror");
 530     if (filter && filter->is_valid()) {
 531         filter->set("mirror", "flip");
 532         trackService.attach(*filter);
 533     }
 534     mlt_service_unlock(service.get_service());
 535 }
 536