MainWorkflow.cpp 13.4 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
/*****************************************************************************
 * MainWorkflow.cpp : Will query all of the track workflows to render the final
 *                    image
 *****************************************************************************
 * Copyright (C) 2008-2009 the VLMC team
 *
 * Authors: Hugo Beauzee-Luyssen <hugo@vlmc.org>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#include <QtDebug>

Ludovic Fauvet's avatar
Ludovic Fauvet committed
26
#include "vlmc.h"
27 28 29 30
#include "Clip.h"
#include "EffectsEngine.h"
#include "Library.h"
#include "LightVideoFrame.h"
31
#include "MainWorkflow.h"
32 33
#include "TrackWorkflow.h"
#include "TrackHandler.h"
34
#include "SettingsManager.h"
35 36

#include <QDomElement>
37

38
LightVideoFrame     *MainWorkflow::blackOutput = NULL;
39

40
MainWorkflow::MainWorkflow( int trackCount ) :
41
        m_lengthFrame( 0 ),
42
        m_renderStarted( false )
43
{
44
    m_currentFrameLock = new QReadWriteLock;
45
    m_renderStartedLock = new QReadWriteLock;
46

47 48 49 50
    const SettingValue  *width = SettingsManager::getInstance()->getValue( "project",
                                                                    "VideoProjectWidth" );
    connect( width,     SIGNAL( changed( QVariant ) ),
             this,      SLOT( widthChanged( QVariant ) ) );
51
    m_width = width->get().toUInt();
52 53 54 55
    const SettingValue  *height = SettingsManager::getInstance()->getValue( "project",
                                                                "VideoProjectHeight" );
    connect( height, SIGNAL( changed( QVariant ) ),
             this, SLOT( widthChanged( QVariant ) ) );
56 57
    m_height = height->get().toUInt();

58 59 60
    m_effectEngine = new EffectsEngine;
    m_effectEngine->disable();

61
    m_tracks = new TrackHandler*[MainWorkflow::NbTrackType];
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
62
    m_currentFrame = new qint64[MainWorkflow::NbTrackType];
63
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
64
    {
65 66
        MainWorkflow::TrackType trackType =
                (i == 0 ? MainWorkflow::VideoTrack : MainWorkflow::AudioTrack );
67
        m_tracks[i] = new TrackHandler( trackCount, trackType, m_effectEngine );
68 69
        connect( m_tracks[i], SIGNAL( tracksEndReached() ),
                 this, SLOT( tracksEndReached() ) );
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
70
	m_currentFrame[i] = 0;
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
71 72
    }
    m_outputBuffers = new OutputBuffers;
73 74 75

    blackOutput = new LightVideoFrame( m_width * m_height * Pixel::NbComposantes );
    memset( (*blackOutput)->frame.octets, 0, (*blackOutput)->nboctets );
76 77 78 79
}

MainWorkflow::~MainWorkflow()
{
80
    //FIXME: this is probably useless, since already done by the renderer
81 82
    stop();

83
    delete m_effectEngine;
84
    delete m_renderStartedLock;
85
    delete m_currentFrameLock;
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
86
    delete m_currentFrame;
87
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
88
        delete m_tracks[i];
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
89
    delete[] m_tracks;
90 91
}

92 93
EffectsEngine*
MainWorkflow::getEffectsEngine()
94
{
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
95
    return m_effectEngine;
96
}
97

98 99
void
MainWorkflow::addClip( Clip *clip, unsigned int trackId,
100
                                        qint64 start, MainWorkflow::TrackType trackType )
101
{
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
102
    m_tracks[trackType]->addClip( clip, trackId, start );
103
    computeLength();
104
    //Inform the GUI
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
105
    emit clipAdded( clip, trackId, start, trackType );
106
}
107

108 109
void
MainWorkflow::computeLength()
110
{
111 112
    qint64      maxLength = 0;

113
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
114 115 116 117
    {
        if ( m_tracks[i]->getLength() > maxLength )
            maxLength = m_tracks[i]->getLength();
    }
118
    m_lengthFrame = maxLength;
119 120
}

121 122
void
MainWorkflow::startRender()
123 124
{
    m_renderStarted = true;
125
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
126
        m_tracks[i]->startRender();
127 128 129
    computeLength();
}

130 131
MainWorkflow::OutputBuffers*
MainWorkflow::getOutput( TrackType trackType )
132
{
133
    QReadLocker         lock( m_renderStartedLock );
134

135
    if ( m_renderStarted == true )
136
    {
137
        QReadLocker         lock2( m_currentFrameLock );
138

139 140
        m_tracks[trackType]->getOutput( m_currentFrame[VideoTrack],
                                        m_currentFrame[trackType] );
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
141
        if ( trackType == MainWorkflow::VideoTrack )
142
        {
143
            m_effectEngine->setCurrentFrameNumber( m_currentFrame[VideoTrack] );
144 145
            m_effectEngine->render();
            const LightVideoFrame &tmp = m_effectEngine->getVideoOutput( 1 );
146
            m_outputBuffers->video = &tmp;
147
        }
148 149
        else
        {
150 151
            m_outputBuffers->audio =
                    m_tracks[MainWorkflow::AudioTrack]->getTmpAudioBuffer();
152
        }
153
    }
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
154
    return m_outputBuffers;
155
}
156

157 158
void
MainWorkflow::pause()
159
{
160 161
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
        m_tracks[i]->pause();
162
    emit mainWorkflowPaused();
163 164
}

165 166
void
MainWorkflow::unpause()
167
{
168 169
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
        m_tracks[i]->unpause();
170
    emit mainWorkflowUnpaused();
171 172
}

173 174
void
MainWorkflow::nextFrame( MainWorkflow::TrackType trackType )
175
{
176
    QWriteLocker    lock( m_currentFrameLock );
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
177

Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
178 179 180
    ++m_currentFrame[trackType];
    if ( trackType == MainWorkflow::VideoTrack )
        emit frameChanged( m_currentFrame[MainWorkflow::VideoTrack], Renderer );
181 182
}

183 184
void
MainWorkflow::previousFrame( MainWorkflow::TrackType trackType )
185
{
186
    QWriteLocker    lock( m_currentFrameLock );
187

Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
188 189 190
    --m_currentFrame[trackType];
    if ( trackType == MainWorkflow::VideoTrack )
        emit frameChanged( m_currentFrame[MainWorkflow::VideoTrack], Renderer );
191 192
}

193 194
qint64
MainWorkflow::getLengthFrame() const
195
{
196
    return m_lengthFrame;
197
}
198

199 200 201
qint64
MainWorkflow::getClipPosition( const QUuid& uuid, unsigned int trackId,
                               MainWorkflow::TrackType trackType ) const
202
{
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
203
    return m_tracks[trackType]->getClipPosition( uuid, trackId );
204
}
205

206 207
void
MainWorkflow::stop()
208 209
{
    QWriteLocker    lock( m_renderStartedLock );
210
    QWriteLocker    lock2( m_currentFrameLock );
211 212

    m_renderStarted = false;
213
    for (unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i)
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
214
    {
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
215
        m_tracks[i]->stop();
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
216 217
        m_currentFrame[i] = 0;
    }
218
    emit frameChanged( 0, Renderer );
219
}
220

221 222 223 224 225
void
MainWorkflow::moveClip( const QUuid &clipUuid, unsigned int oldTrack,
                        unsigned int newTrack, qint64 startingFrame,
                        MainWorkflow::TrackType trackType,
                        bool undoRedoCommand /*= false*/ )
226
{
227
    m_tracks[trackType]->moveClip( clipUuid, oldTrack, newTrack, startingFrame );
228
    computeLength();
229

230 231 232 233
    if ( undoRedoCommand == true )
    {
        emit clipMoved( clipUuid, newTrack, startingFrame, trackType );
    }
234
}
235

236 237 238
Clip*
MainWorkflow::removeClip( const QUuid &uuid, unsigned int trackId,
                          MainWorkflow::TrackType trackType )
239
{
240
    Clip *clip = m_tracks[trackType]->removeClip( uuid, trackId );
241
    computeLength();
242
    emit clipRemoved( clip, trackId, trackType );
243
    return clip;
244 245
}

246 247
void
MainWorkflow::muteTrack( unsigned int trackId, MainWorkflow::TrackType trackType )
248
{
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
249
    m_tracks[trackType]->muteTrack( trackId );
250 251
}

252 253
void
MainWorkflow::unmuteTrack( unsigned int trackId, MainWorkflow::TrackType trackType )
254
{
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
255
    m_tracks[trackType]->unmuteTrack( trackId );
256
}
257

258 259 260 261
void toggleBreakPoint()
{
}

262 263
void
MainWorkflow::setCurrentFrame( qint64 currentFrame, MainWorkflow::FrameChangedReason reason )
264
{
265 266
    QWriteLocker    lock( m_currentFrameLock );

267
    toggleBreakPoint();
268 269 270 271 272 273 274
    if ( m_renderStarted == true )
    {
        //Since any track can be reactivated, we reactivate all of them, and let them
        //unable themself if required.
        for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i)
            m_tracks[i]->activateAll();
    }
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
275 276 277
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i)
        m_currentFrame[i] = currentFrame;
    emit frameChanged( currentFrame, reason );
278
}
279

280 281 282
Clip*
MainWorkflow::getClip( const QUuid &uuid, unsigned int trackId,
                       MainWorkflow::TrackType trackType )
283
{
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
284
    return m_tracks[trackType]->getClip( uuid, trackId );
285
}
286

287
/**
288
 *  \warning    The mainworkflow is expected to be already cleared by the ProjectManager
289
 */
290 291
void
MainWorkflow::loadProject( const QDomElement &project )
292
{
293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320
    if ( project.isNull() == true || project.tagName() != "timeline" )
    {
        qWarning() << "Invalid timeline node (" << project.tagName() << ')';
        return ;
    }

    QDomElement elem = project.firstChild().toElement();

    while ( elem.isNull() == false )
    {
        bool    ok;

        Q_ASSERT( elem.tagName() == "track" );
        unsigned int trackId = elem.attribute( "id" ).toUInt( &ok );
        if ( ok == false )
        {
            qWarning() << "Invalid track number in project file";
            return ;
        }
        QDomElement clip = elem.firstChild().toElement();
        while ( clip.isNull() == false )
        {
            //Iterate over clip fields:
            QDomElement clipProperty = clip.firstChild().toElement();
            QUuid                       parent;
            qint64                      begin;
            qint64                      end;
            qint64                      startPos;
321
            MainWorkflow::TrackType     trackType = MainWorkflow::VideoTrack;
322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358

            while ( clipProperty.isNull() == false )
            {
                QString tagName = clipProperty.tagName();
                bool    ok;

                if ( tagName == "parent" )
                    parent = QUuid( clipProperty.text() );
                else if ( tagName == "begin" )
                {
                    begin = clipProperty.text().toLongLong( &ok );
                    if ( ok == false )
                    {
                        qWarning() << "Invalid clip begin";
                        return ;
                    }
                }
                else if ( tagName == "end" )
                {
                    end = clipProperty.text().toLongLong( &ok );
                    if ( ok == false )
                    {
                        qWarning() << "Invalid clip end";
                        return ;
                    }
                }
                else if ( tagName == "startFrame" )
                {
                    startPos = clipProperty.text().toLongLong( &ok );
                    if ( ok == false )
                    {
                        qWarning() << "Invalid clip starting frame";
                        return ;
                    }
                }
                else if ( tagName == "trackType" )
                {
359 360
                    trackType = static_cast<MainWorkflow::TrackType>(
                                                    clipProperty.text().toUInt( &ok ) );
361 362 363 364 365 366 367 368 369 370 371 372
                    if ( ok == false )
                    {
                        qWarning() << "Invalid track type starting frame";
                        return ;
                    }
                }
                else
                    qDebug() << "Unknown field" << clipProperty.tagName();

                clipProperty = clipProperty.nextSibling().toElement();
            }

373
            if ( Library::getInstance()->media( parent ) != NULL )
374
            {
375
                Clip        *c = new Clip( parent, begin, end );
376 377
                addClip( c, trackId, startPos, trackType );
            }
378 379 380 381 382

            clip = clip.nextSibling().toElement();
        }
        elem = elem.nextSibling().toElement();
    }
383 384
}

385 386
void
MainWorkflow::saveProject( QDomDocument& doc, QDomElement& rootNode )
387
{
388
    QDomElement project = doc.createElement( "timeline" );
389
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
390 391 392 393
    {
        m_tracks[i]->save( doc, project );
    }
    rootNode.appendChild( project );
394
}
395

396 397
void
MainWorkflow::clear()
398
{
399
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
400
        m_tracks[i]->clear();
401
    emit cleared();
402
}
403

404 405
void
MainWorkflow::tracksEndReached()
406 407
{
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
408
    {
409 410
        if ( m_tracks[i]->endIsReached() == false )
            return ;
411
    }
412 413 414
    emit mainWorkflowEndReached();
}

415 416
int
MainWorkflow::getTrackCount( MainWorkflow::TrackType trackType ) const
417 418 419
{
    return m_tracks[trackType]->getTrackCount();
}
Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
420

421 422
qint64
MainWorkflow::getCurrentFrame() const
423
{
424 425
    QReadLocker     lock( m_currentFrameLock );

Hugo Beauzee-Luyssen's avatar
Hugo Beauzee-Luyssen committed
426
    return m_currentFrame[MainWorkflow::VideoTrack];
427
}
428

429 430
void
MainWorkflow::widthChanged( const QVariant &width )
431 432 433 434
{
    m_width = width.toUInt();
}

435 436
void
MainWorkflow::heightChanged( const QVariant &height )
437 438 439 440
{
    m_height = height.toUInt();
}

441 442
uint32_t
MainWorkflow::getWidth() const
443 444 445 446
{
    return m_width;
}

447 448
uint32_t
MainWorkflow::getHeight() const
449 450 451
{
    return m_height;
}
452 453 454 455 456 457 458 459 460

void
MainWorkflow::renderOneFrame()
{
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
        m_tracks[i]->renderOneFrame();
    nextFrame( VideoTrack );
    nextFrame( AudioTrack );
}
461 462 463 464 465 466 467

void
MainWorkflow::setFullSpeedRender( bool val )
{
    for ( unsigned int i = 0; i < MainWorkflow::NbTrackType; ++i )
        m_tracks[i]->setFullSpeedRender( val );
}