1 /***************************************************************************
2 mltdevicecapture.cpp - description
4 begin : Sun May 21 2011
5 copyright : (C) 2011 by Jean-Baptiste Mardelle (jb@kdenlive.org)
7 ***************************************************************************/
9 /***************************************************************************
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. *
16 ***************************************************************************/
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"
26 #include <mlt++/Mlt.h>
29 #include <KStandardDirs>
30 #include <KMessageBox>
32 #include <KTemporaryFile>
37 #include <QApplication>
46 static void consumer_gl_frame_show(mlt_consumer, MltDeviceCapture * self, mlt_frame frame_ptr)
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);
53 static void rec_consumer_frame_show(mlt_consumer, MltDeviceCapture * self, mlt_frame frame_ptr)
55 Mlt::Frame frame(frame_ptr);
56 if (!frame.is_valid()) return;
57 self->gotCapturedFrame(frame);
60 static void rec_consumer_frame_preview(mlt_consumer, MltDeviceCapture * self, mlt_frame frame_ptr)
62 Mlt::Frame frame(frame_ptr);
63 if (!frame.is_valid()) return;
64 if (self->sendFrameForAnalysis && frame_ptr->convert_image) {
65 self->emitFrameUpdated(frame);
67 if (self->doCapture > 0) {
69 if (self->doCapture == 0) self->saveFrame(frame);
72 /* if (self->analyseAudio) {
73 self->showAudio(frame);
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) {
79 self->emitConsumerStopped();
84 MltDeviceCapture::MltDeviceCapture(QString profile, VideoPreviewContainer *surface, QWidget *parent) :
85 AbstractRender(parent),
87 sendFrameForAnalysis(false),
91 m_captureDisplayWidget(surface),
92 m_winid((int) surface->winId()),
93 m_analyseAudio(KdenliveSettings::monitor_audio())
95 if (profile.isEmpty()) profile = KdenliveSettings::current_profile();
96 buildConsumer(profile);
99 MltDeviceCapture::~MltDeviceCapture()
101 if (m_mltConsumer) delete m_mltConsumer;
102 if (m_mltProducer) delete m_mltProducer;
103 if (m_mltProfile) delete m_mltProfile;
106 void MltDeviceCapture::buildConsumer(const QString &profileName)
108 if (!profileName.isEmpty()) m_activeProfile = profileName;
110 if (m_mltProfile) delete m_mltProfile;
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;
118 QString videoDriver = KdenliveSettings::videodrivername();
119 if (!videoDriver.isEmpty()) {
120 if (videoDriver == "x11_noaccel") {
121 setenv("SDL_VIDEO_YUV_HWACCEL", "0", 1);
124 unsetenv("SDL_VIDEO_YUV_HWACCEL");
127 setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 1);
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);
136 m_mltConsumer = new Mlt::Consumer(*m_mltProfile, "sdl_preview");
137 m_mltConsumer->set("window_id", m_winid);
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");
144 m_mltConsumer->listen("consumer-frame-show", this, (mlt_listener) rec_consumer_frame_preview);
146 QString audioDevice = KdenliveSettings::audiodevicename();
147 if (!audioDevice.isEmpty())
148 m_mltConsumer->set("audio_device", audioDevice.toUtf8().constData());
150 if (!videoDriver.isEmpty())
151 m_mltConsumer->set("video_driver", videoDriver.toUtf8().constData());
153 QString audioDriver = KdenliveSettings::audiodrivername();
155 if (!audioDriver.isEmpty())
156 m_mltConsumer->set("audio_driver", audioDriver.toUtf8().constData());
158 //m_mltConsumer->set("progressive", 1);
159 //m_mltConsumer->set("buffer", 1);
160 //m_mltConsumer->set("real_time", 0);
163 void MltDeviceCapture::stop()
165 bool isPlaylist = false;
167 m_mltConsumer->set("refresh", 0);
168 m_mltConsumer->stop();
169 //if (!m_mltConsumer->is_stopped()) m_mltConsumer->stop();
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) {
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");
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());
206 mlt_playlist_close(trackPlaylist.get_playlist());
207 //trackPlaylist.clear();
213 mlt_service_unlock(service.get_service());
214 delete m_mltProducer;
215 m_mltProducer = NULL;
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;
223 void MltDeviceCapture::doRefresh()
225 if (m_mltConsumer) m_mltConsumer->set("refresh", 1);
229 void MltDeviceCapture::emitFrameUpdated(Mlt::Frame& frame)
231 mlt_image_format format = mlt_image_rgb24a;
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());
240 void MltDeviceCapture::showFrame(Mlt::Frame& frame)
242 mlt_image_format format = mlt_image_rgb24a;
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());
255 void MltDeviceCapture::showAudio(Mlt::Frame& frame)
257 if (!frame.is_valid() || frame.get_int("test_audio") != 0) {
260 mlt_audio_format audio_format = mlt_audio_s16;
262 int num_channels = 0;
264 int16_t* data = (int16_t*)frame.get_audio(audio_format, freq, num_channels, samples);
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));
276 emit audioSamplesSignal(sampleVector, freq, num_channels, samples);
280 bool MltDeviceCapture::slotStartPreview(const QString &producer, bool xmlFormat)
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);
288 if (m_mltProducer == NULL || !m_mltProducer->is_valid()) {
289 kDebug()<<"//// ERROR CREATRING PROD";
292 m_mltConsumer->connect(*m_mltProducer);
293 if (m_mltConsumer->start() == -1) {
294 delete m_mltConsumer;
295 m_mltConsumer = NULL;
301 void MltDeviceCapture::gotCapturedFrame(Mlt::Frame& frame)
303 mlt_image_format format = mlt_image_rgb24a;
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());
312 void MltDeviceCapture::saveFrame(Mlt::Frame& frame)
314 mlt_image_format format = mlt_image_rgb24a;
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);
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);
327 qimage.rgbSwapped().save(m_capturePath);
328 emit frameSaved(m_capturePath);
329 m_capturePath.clear();
332 void MltDeviceCapture::captureFrame(const QString &path)
334 if (m_mltProducer == NULL || !m_mltProducer->is_valid()) return;
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
349 bool MltDeviceCapture::slotStartCapture(const QString ¶ms, const QString &path, const QString &playlist)
352 if (m_mltProfile) delete m_mltProfile;
353 char *tmp = qstrdup(m_activeProfile.toUtf8().constData());
354 m_mltProfile = new Mlt::Profile(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);
363 QStringList paramList = params.split(" ", QString::SkipEmptyParts);
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);
373 if (m_mltConsumer == NULL || !m_mltConsumer->is_valid()) {
375 delete m_mltConsumer;
376 m_mltConsumer = NULL;
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);
387 if (m_mltProducer == NULL || !m_mltProducer->is_valid()) {
388 kDebug()<<"//// ERROR CREATRING PROD";
392 m_mltConsumer->connect(*m_mltProducer);
393 if (m_mltConsumer->start() == -1) {
394 delete m_mltConsumer;
395 m_mltConsumer = NULL;
402 void MltDeviceCapture::setOverlay(const QString &path)
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 //////";
411 Mlt::Service service(parentProd.get_service());
412 if (service.type() != tractor_type) {
413 kWarning() << "// TRACTOR PROBLEM";
416 Mlt::Tractor tractor(service);
417 if ( tractor.count() < 2) {
418 kWarning() << "// TRACTOR PROBLEM";
421 mlt_service_lock(service.get_service());
422 Mlt::Producer trackProducer(tractor.track(0));
423 Mlt::Playlist trackPlaylist((mlt_playlist) trackProducer.get_service());
425 trackPlaylist.remove(0);
426 if (path.isEmpty()) {
427 mlt_service_unlock(service.get_service());
432 char *tmp = qstrdup(path.toUtf8().constData());
433 Mlt::Producer *clip = new Mlt::Producer (*m_mltProfile, "loader", tmp);
435 clip->set_in_and_out(0, 99999);
436 trackPlaylist.insert_at(0, clip, 1);
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);
455 mlt_service_unlock(service.get_service());
459 void MltDeviceCapture::setOverlayEffect(const QString tag, QStringList parameters)
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());
468 mlt_service_lock(service.get_service());
470 // delete previous effects
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());
482 trackService.detach(*filter);
484 filter = trackService.filter(0);
488 mlt_service_unlock(service.get_service());
492 char *tmp = qstrdup(tag.toUtf8().constData());
493 filter = new Mlt::Filter(*m_mltProfile, 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());
499 trackService.attach(*filter);
501 mlt_service_unlock(service.get_service());
504 void MltDeviceCapture::mirror(bool activate)
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());
513 mlt_service_lock(service.get_service());
515 // delete previous effects
517 filter = trackService.filter(0);
519 trackService.detach(*filter);
521 filter = trackService.filter(0);
525 mlt_service_unlock(service.get_service());
529 filter = new Mlt::Filter(*m_mltProfile, "mirror");
530 if (filter && filter->is_valid()) {
531 filter->set("mirror", "flip");
532 trackService.attach(*filter);
534 mlt_service_unlock(service.get_service());