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) {
  68         self->doCapture = false;
  69         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(false),
  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     if (m_mltConsumer) {
 166         m_mltConsumer->stop();
 167         //if (!m_mltConsumer->is_stopped()) m_mltConsumer->stop();
 168         delete m_mltConsumer;
 169         m_mltConsumer = NULL;
 170     }
 171     kDebug()<<"STOPPING cap";
 172     if (m_mltProducer) {
 173         QList <Mlt::Producer *> prods;
 174         Mlt::Service service(m_mltProducer->parent().get_service());
 175         mlt_service_lock(service.get_service());
 176 kDebug()<<"STOPPING cap 2";
 177         if (service.type() == tractor_type) {
 178             kDebug()<<"STOPPING cap 3";
 179             Mlt::Tractor tractor(service);
 180             mlt_tractor_close(tractor.get_tractor());
 181             Mlt::Field *field = tractor.field();
 182             mlt_service nextservice = mlt_service_get_producer(service.get_service());
 183             mlt_service nextservicetodisconnect;
 184             mlt_properties properties = MLT_SERVICE_PROPERTIES(nextservice);
 185             QString mlt_type = mlt_properties_get(properties, "mlt_type");
 186             QString resource = mlt_properties_get(properties, "mlt_service");
 187             // Delete all transitions
 188             while (mlt_type == "transition") {
 189                 nextservicetodisconnect = nextservice;
 190                 nextservice = mlt_service_producer(nextservice);
 191                 mlt_field_disconnect_service(field->get_field(), nextservicetodisconnect);
 192                 if (nextservice == NULL) break;
 193                 properties = MLT_SERVICE_PROPERTIES(nextservice);
 194                 mlt_type = mlt_properties_get(properties, "mlt_type");
 195                 resource = mlt_properties_get(properties, "mlt_service");
 196             }
 197             for (int trackNb = tractor.count() - 1; trackNb >= 0; --trackNb) {
 198                 Mlt::Producer trackProducer(tractor.track(trackNb));
 199                 Mlt::Playlist trackPlaylist((mlt_playlist) trackProducer.get_service());
 200                 if (trackPlaylist.type() == playlist_type) {
 201                     for (int i = 0; i < trackPlaylist.count();i++) {
 202                         // We need to manually decrease the ref count and close the producer, otherwise
 203                         // the video4linux device stays open, seems like a bug in MLT that is not cleaning properly
 204                         mlt_properties props = MLT_PRODUCER_PROPERTIES(trackPlaylist.get_clip(i)->get_parent());
 205                         while (mlt_properties_ref_count(props) > 0) mlt_properties_dec_ref(props);
 206                         mlt_producer_close(trackPlaylist.get_clip(i)->get_parent());
 207                     }
 208                     mlt_playlist_close(trackPlaylist.get_playlist());
 209                     //trackPlaylist.clear();
 210                 }
 211             }
 212             delete field;
 213             field = NULL;
 214         }
 215         mlt_service_unlock(service.get_service());
 216         delete m_mltProducer;
 217         kDebug()<<"/// STOP REC PROD";
 218         m_mltProducer = NULL;
 219     }
 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)
 281 {
 282     //stop();
 283     if (m_mltConsumer == NULL) buildConsumer();
 284     /*if (m_mltConsumer) delete m_mltConsumer;
 285     if (m_mltProducer) delete m_mltProducer;
 286     if (m_mltProfile) delete m_mltProfile;
 287
 288     char *tmp = qstrdup(m_activeProfile.toUtf8().constData());
 289     setenv("MLT_PROFILE", tmp, 1);
 290     m_mltProfile = new Mlt::Profile(tmp);
 291     delete[] tmp;
 292     m_mltProfile->get_profile()->is_explicit = 1;
 293
 294     m_mltConsumer = new Mlt::Consumer(*m_mltProfile, "sdl_preview");
 295
 296     m_mltConsumer->set("window_id", m_winid);
 297     m_mltConsumer->set("real_time", 0);
 298 //    m_mltConsumer->set("buffer", 1);
 299     m_mltConsumer->set("resize", 1);
 300     m_mltConsumer->set("progressive", 1);
 301     m_mltConsumer->set("rescale", "nearest");*/
 302
 303     //char *tmp = qstrdup(QString("avformat-novalidate:video4linux2:%1?frame_rate:%2&width:%3&height:%4").arg(KdenliveSettings::video4vdevice()).arg(m_mltProfile->fps()).arg(m_mltProfile->width()).arg(m_mltProfile->height()).toUtf8().constData());
 304
 305     char *tmp = qstrdup(producer.toUtf8().constData());
 306
 307     m_mltProducer = new Mlt::Producer(*m_mltProfile, tmp);
 308     delete[] tmp;
 309     if (m_mltProducer == NULL || !m_mltProducer->is_valid()) {
 310         kDebug()<<"//// ERROR CREATRING PROD";
 311         return false;
 312     }
 313     m_mltConsumer->connect(*m_mltProducer);
 314     if (m_mltConsumer->start() == -1) {
 315         delete m_mltConsumer;
 316         m_mltConsumer = NULL;
 317         return 0;
 318     }
 319     return 1;
 320 }
 321
 322 void MltDeviceCapture::gotCapturedFrame(Mlt::Frame& frame)
 323 {
 324     mlt_image_format format = mlt_image_rgb24a;
 325     int width = 0;
 326     int height = 0;
 327     const uchar* image = frame.get_image(format, width, height);
 328     QImage qimage(width, height, QImage::Format_ARGB32);
 329     memcpy(qimage.bits(), image, width * height * 4);
 330     m_captureDisplayWidget->setImage(qimage.rgbSwapped());
 331 }
 332
 333 void MltDeviceCapture::saveFrame(Mlt::Frame& frame)
 334 {
 335     mlt_image_format format = mlt_image_rgb24a;
 336     int width = 0;
 337     int height = 0;
 338     const uchar* image = frame.get_image(format, width, height);
 339     QImage qimage(width, height, QImage::Format_ARGB32);
 340     memcpy(qimage.bits(), image, width * height * 4);
 341     qimage.rgbSwapped().save(m_capturePath);
 342     emit frameSaved(m_capturePath);
 343     m_capturePath.clear();
 344 }
 345
 346 void MltDeviceCapture::captureFrame(const QString &path)
 347 {
 348     m_capturePath = path;
 349     doCapture = true;
 350 }
 351
 352 bool MltDeviceCapture::slotStartCapture(const QString &params, const QString &path, const QString &playlist)
 353 {
 354     stop();
 355     if (m_mltProfile) delete m_mltProfile;
 356     char *tmp = qstrdup(m_activeProfile.toUtf8().constData());
 357     m_mltProfile = new Mlt::Profile(tmp);
 358     delete[] tmp;
 359     m_mltProfile->get_profile()->is_explicit = 1;
 360     kDebug()<<"-- CREATING CAP: "<<params<<", PATH: "<<path;
 361     tmp = qstrdup(QString("avformat:" + path).toUtf8().constData());
 362     m_mltConsumer = new Mlt::Consumer(*m_mltProfile, tmp);
 363     m_mltConsumer->set("terminate_on_pause", 1);
 364     delete[] tmp;
 365
 366     QStringList paramList = params.split(" ", QString::SkipEmptyParts);
 367     char *tmp2;
 368     for (int i = 0; i < paramList.count(); i++) {
 369         tmp = qstrdup(paramList.at(i).section("=", 0, 0).toUtf8().constData());
 370         tmp2 = qstrdup(paramList.at(i).section("=", 1, 1).toUtf8().constData());
 371         m_mltConsumer->set(tmp, tmp2);
 372         delete[] tmp;
 373         delete[] tmp2;
 374     }
 375
 376     if (m_mltConsumer == NULL || !m_mltConsumer->is_valid()) {
 377         if (m_mltConsumer) {
 378             delete m_mltConsumer;
 379             m_mltConsumer = NULL;
 380         }
 381         return false;
 382     }
 383
 384     // FIXME: the event object returned by the listen gets leaked...
 385     m_mltConsumer->listen("consumer-frame-show", this, (mlt_listener) rec_consumer_frame_show);
 386
 387     //tmp = qstrdup(QString("avformat-novalidate:video4linux2:%1?frame_rate:%2&width:%3&height:%4").arg(KdenliveSettings::video4vdevice()).arg(m_mltProfile->fps()).arg(m_mltProfile->width()).arg(m_mltProfile->height()).toUtf8().constData());
 388     tmp = qstrdup(playlist.toUtf8().constData());
 389     m_mltProducer = new Mlt::Producer(*m_mltProfile, "xml-string", tmp);
 390     delete[] tmp;
 391
 392     if (m_mltProducer == NULL || !m_mltProducer->is_valid()) {
 393         kDebug()<<"//// ERROR CREATRING PROD";
 394         return false;
 395     }
 396
 397     m_mltConsumer->connect(*m_mltProducer);
 398     if (m_mltConsumer->start() == -1) {
 399         delete m_mltConsumer;
 400         m_mltConsumer = NULL;
 401         return 0;
 402     }
 403     return 1;
 404 }
 405
 406