#include <QtCore/QVarLengthArray>
#include <kstandarddirs.h>
-#include <kmimetype.h>
-#include <QDir>
-#include <qpainter.h>
#include <krandomsequence.h>
#include <qdatetime.h>
-#include <qregexp.h>
#include <QProcess>
#include <kdebug.h>
#include <ktempdir.h>
#include <kurl.h>
-#include <math.h>
#include <qfileinfo.h>
-#include <kcodecs.h>
#include <KTemporaryFile>
#include <unistd.h>
#define DBG_AREA
//#include "config.h"
-extern "C"
-{
- KDE_EXPORT ThumbCreator *new_creator()
- {
+extern "C" {
+ KDE_EXPORT ThumbCreator *new_creator() {
return new WestleyPreview;
}
}
WestleyPreview::WestleyPreview()
-{
+ : m_rand(0), m_inigoprocess(0) {
}
-WestleyPreview::~WestleyPreview()
-{
- delete rand;
- delete inigoprocess;
+WestleyPreview::~WestleyPreview() {
+ delete m_rand;
+ delete m_inigoprocess;
}
bool WestleyPreview::startAndWaitProcess(const QStringList &args) {
kDebug(DBG_AREA) << "westleypreview: starting process with args: " << args << endl;
- inigoprocess->start( args.join(" ") );
- if(! inigoprocess->waitForStarted() ) {
+ m_inigoprocess->start(args.join(" "));
+ if (! m_inigoprocess->waitForStarted()) {
kDebug(DBG_AREA) << "westleypreview: PROCESS NOT STARTED!!! exiting\n";
return false;
}
- if(! inigoprocess->waitForFinished() ) {
+ if (! m_inigoprocess->waitForFinished()) {
kDebug(DBG_AREA) << "westleypreview: PROCESS DIDN'T FINISH!! exiting\n";
- inigoprocess->close();
+ m_inigoprocess->close();
return false;
}
- kDebug() << "westleypreview: process started and ended correctly\n";
- return true;
+ kDebug() << "westleypreview: process started and ended correctly\n";
+ return true;
}
-bool WestleyPreview::create(const QString &path, int width, int height, QImage &img)
-{
+bool WestleyPreview::create(const QString &path, int width, int height, QImage &img) {
QFileInfo fi(path);
/*if (fi.suffix().trimmed() != "westley" && fi.suffix().trimmed() != "kdenlive")
{
kDebug(DBG_AREA) << "westleypreview: matched extension " << fi.suffix().prepend('.') << "; exiting.\n";
return false;
}*/
- playerBin=KStandardDirs::findExe("inigo");
- if(playerBin.isEmpty())
- {
- kDebug(DBG_AREA) << "westleypreview: inigo not found, exiting.\n";
+ playerBin = KStandardDirs::findExe("inigo");
+ if (playerBin.isEmpty()) {
+ kDebug(DBG_AREA) << "westleypreview: inigo not found, exiting.\n";
return false;
}
- fileinfo.seconds=0;
- fileinfo.fps=0;
+ fileinfo.seconds = 0;
+ fileinfo.fps = 0;
- rand=new KRandomSequence(QDateTime::currentDateTime().toTime_t());
- inigoprocess=new QProcess();
+ m_rand = new KRandomSequence(QDateTime::currentDateTime().toTime_t());
+ m_inigoprocess = new QProcess();
KUrl furl(path);
kDebug(DBG_AREA) << "videopreview: url=" << furl << "; local:" << furl.isLocalFile() << endl;
- fileinfo.towidth=width;
- fileinfo.toheight=height;
+ fileinfo.towidth = width;
+ fileinfo.toheight = height;
QPixmap pix;
// if(furl.isLocalFile())
// {
QStringList args;
- //TODO: modify inigo so that it can return some infos about a westley clip (duration, track number,fps,...)
+ //TODO: modify inigo so that it can return some infos about a westley clip (duration, track number,fps,...)
// without actually playing the file
-/*
- args << playerBin << QString("\"" + path + "\"") << "-file-info";
-
- kDebug(DBG_AREA) << "videopreview: starting process: --_" << " " << args.join(" ") << "_--\n";
- if (! startAndWaitProcess(args) ) return NULL;
-
- QString information=QString(inigoprocess->readAllStandardOutput() );
- QRegExp findInfos("ID_VIDEO_FPS=([\\d]*).*ID_LENGTH=([\\d]*).*");
- if(findInfos.indexIn( information) == -1 )
- {
- kDebug(DBG_AREA) << "videopreview: No information found, exiting\n";
- return NULL;
- }
- fileinfo.seconds =findInfos.cap(2).toInt();
- fileinfo.fps=findInfos.cap(1).toInt();
- */
+ /*
+ args << playerBin << QString("\"" + path + "\"") << "-file-info";
+
+ kDebug(DBG_AREA) << "videopreview: starting process: --_" << " " << args.join(" ") << "_--\n";
+ if (! startAndWaitProcess(args) ) return NULL;
+
+ QString information=QString(inigoprocess->readAllStandardOutput() );
+ QRegExp findInfos("ID_VIDEO_FPS=([\\d]*).*ID_LENGTH=([\\d]*).*");
+ if(findInfos.indexIn( information) == -1 )
+ {
+ kDebug(DBG_AREA) << "videopreview: No information found, exiting\n";
+ return NULL;
+ }
+ fileinfo.seconds =findInfos.cap(2).toInt();
+ fileinfo.fps=findInfos.cap(1).toInt();
+ */
fileinfo.seconds = 250;
fileinfo.fps = 25;
-
+
//kDebug(DBG_AREA) << "videopreview: find length=" << fileinfo.seconds << ", fps=" << fileinfo.fps << endl;
const int LASTTRY = 3;
- for(int i=0; i<=LASTTRY; i++)
- {
- pix=getFrame(path);
- if(!pix.isNull()) {
- uint variance=imageVariance(pix.toImage()/*.bits(),( (width+ 7) & ~0x7), width, height, 1 */);
- kDebug(DBG_AREA) << "videopreview: " << QFileInfo(path).fileName() << " frame variance: " << variance << "; " <<
- ((variance<=40 && ( i!=LASTTRY-1))? "!!!DROPPING!!!" : "GOOD :-)" ) << endl;
- if(variance>40 || i==LASTTRY-1 ) break;
+ for (int i = 0; i <= LASTTRY; i++) {
+ pix = getFrame(path);
+ if (!pix.isNull()) {
+ uint variance = imageVariance(pix.toImage()/*.bits(),( (width+ 7) & ~0x7), width, height, 1 */);
+ kDebug(DBG_AREA) << "videopreview: " << QFileInfo(path).fileName() << " frame variance: " << variance << "; " <<
+ ((variance <= 40 && (i != LASTTRY - 1)) ? "!!!DROPPING!!!" : "GOOD :-)") << endl;
+ if (variance > 40 || i == LASTTRY - 1) break;
}
}
- if(pix.isNull() )
- {
+ if (pix.isNull()) {
return false;
}
img = pix.toImage();
return true;
}
-QPixmap WestleyPreview::getFrame(const QString &path)
-{
+QPixmap WestleyPreview::getFrame(const QString &path) {
QStringList args;
- #define START ((fileinfo.seconds*15)/100)
- #define END ((fileinfo.seconds*70)/100)
+#define START ((fileinfo.seconds*15)/100)
+#define END ((fileinfo.seconds*70)/100)
args.clear();
args << playerBin << "\"" + path + "\"";
- if(fileinfo.towidth>fileinfo.toheight) fileinfo.toheight=-2; else fileinfo.towidth=-2;
+ if (fileinfo.towidth > fileinfo.toheight) fileinfo.toheight = -2;
+ else fileinfo.towidth = -2;
// switch( flags ){
// case random
// }
- unsigned long start=(unsigned long)(START+(rand->getDouble() * (END - START) ) );
- args << QString("in=%1").arg(start)<< QString("out=%1").arg(start)<<"-consumer";
+ unsigned long start = (unsigned long)(START + (m_rand->getDouble() * (END - START)));
+ args << QString("in=%1").arg(start) << QString("out=%1").arg(start) << "-consumer";
KTemporaryFile temp;
temp.setSuffix(".png");
temp.open();
- args << QString("avformat:%1").arg(temp.fileName()) << "vframes=1"<< "f=rawvideo"<< "vcodec=png"<< QString("s=%1x%2").arg(fileinfo.towidth).arg(fileinfo.toheight);
- if (! startAndWaitProcess(args) ) return NULL;
+ args << QString("avformat:%1").arg(temp.fileName()) << "vframes=1" << "f=rawvideo" << "vcodec=png" << QString("s=%1x%2").arg(fileinfo.towidth).arg(fileinfo.toheight);
+ if (! startAndWaitProcess(args)) return NULL;
QPixmap retpix(temp.fileName());
temp.close();
return retpix;
}
-uint WestleyPreview::imageVariance(QImage image )
-{
- uint delta=0;
- uint avg=0;
- uint bytes=image.numBytes();
- uint STEPS=bytes/2;
+uint WestleyPreview::imageVariance(QImage image) {
+ uint delta = 0;
+ uint avg = 0;
+ uint bytes = image.numBytes();
+ uint STEPS = bytes / 2;
QVarLengthArray<uchar> pivot(STEPS);
kDebug(DBG_AREA) << "Using " << STEPS << " steps\n";
- uchar *bits=image.bits();
+ uchar *bits = image.bits();
// First pass: get pivots and taking average
- for( uint i=0; i<STEPS ; i++ ){
- pivot[i]=bits[i*(bytes/STEPS)];
- avg+=pivot[i];
+ for (uint i = 0; i < STEPS ; i++) {
+ pivot[i] = bits[i*(bytes/STEPS)];
+ avg += pivot[i];
}
- avg=avg/STEPS;
+ avg = avg / STEPS;
// Second Step: calculate delta (average?)
- for (uint i=0; i<STEPS; i++)
- {
- int curdelta=abs(int(avg-pivot[i]));
- delta+=curdelta;
+ for (uint i = 0; i < STEPS; i++) {
+ int curdelta = abs(int(avg - pivot[i]));
+ delta += curdelta;
}
- return delta/STEPS;
+ return delta / STEPS;
}
+
+ThumbCreator::Flags WestleyPreview::flags() const {
+ return DrawFrame;
+}
+
#include "westleypreview.moc"
#define _westleypreview_H_
#include <qstring.h>
-#include <q3cstring.h>
#include <qpixmap.h>
#include <kio/thumbcreator.h>
+#include <qobject.h>
class QProcess;
-class Q3CString;
class KTempDir;
class KRandomSequence;
-#include <qobject.h>
-class WestleyPreview : public QObject, public ThumbCreator
-{
-Q_OBJECT
- public:
- WestleyPreview();
- virtual ~WestleyPreview();
- virtual bool create(const QString &path, int width, int height, QImage &img);
- protected:
- QPixmap getFrame(const QString &path);
- static uint imageVariance(QImage image );
-
- private:
- QPixmap m_pixmap;
- QProcess *inigoprocess;
- QStringList customargs;
- KRandomSequence *rand;
- QString playerBin;
- bool startAndWaitProcess(const QStringList &args);
- enum frameflags { framerandom=0x1, framestart=0x2, frameend=0x4 };
- struct { int towidth; int toheight; int fps; int seconds; } fileinfo;
+
+class WestleyPreview : public QObject, public ThumbCreator {
+ Q_OBJECT
+public:
+ WestleyPreview();
+ virtual ~WestleyPreview();
+ virtual bool create(const QString &path, int width, int height, QImage &img);
+ virtual Flags flags() const;
+
+protected:
+ QPixmap getFrame(const QString &path);
+ static uint imageVariance(QImage image);
+
+private:
+ QPixmap m_pixmap;
+ QProcess *m_inigoprocess;
+ QStringList customargs;
+ KRandomSequence *m_rand;
+ QString playerBin;
+ bool startAndWaitProcess(const QStringList &args);
+ enum frameflags { framerandom = 0x1, framestart = 0x2, frameend = 0x4 };
+ struct {
+ int towidth;
+ int toheight;
+ int fps;
+ int seconds;
+ } fileinfo;
};
#endif
projects / kdenlive / commitdiff