Hi,
I hacked together this patch against svn-r166.
It adds an entry field and a list of small frames below the current
picture. This sequence shows some frames before and after the current
picture. The default distance between the frames is 7500 frames (about
5 minutes), but you can change this with the edit field above.
When you click on one of the small frames, this frame becomes the
current one. So you can step through a movie by fixed amounts.
I have tested this only lightly, so be warned. But I hope, you might
find this useful nonetheless.
Regards, Olaf
Index: src/Makefile.in
===================================================================
--- src/Makefile.in (revision 166)
+++ src/Makefile.in (working copy)
@@ -70,7 +70,8 @@
moc_mplayererrorbase.cpp \
moc_progressstatusbar.cpp \
moc_progresswindow.cpp \
- moc_progresswindowbase.cpp
+ moc_progresswindowbase.cpp \
+ moc_framesequence.cpp
UIC = \
uic_dvbcutbase.cpp \
@@ -84,7 +85,8 @@
imageprovider.cpp index.cpp lavfmuxer.cpp logoutput.cpp \
main.cpp mpegmuxer.cpp mpgfile.cpp playaudio.cpp \
progressstatusbar.cpp progresswindow.cpp psfile.cpp \
- pts.cpp streamdata.cpp tsfile.cpp settings.cpp $(MOC) $(UIC) \
+ pts.cpp streamdata.cpp tsfile.cpp settings.cpp framesequence.cpp \
+ $(MOC) $(UIC) \
$(STDLIB)
OBJS = $(SRCS:.cpp=.$(OBJEXT))
Index: src/dvbcut.cpp
===================================================================
--- src/dvbcut.cpp (revision 166)
+++ src/dvbcut.cpp (working copy)
@@ -51,6 +51,7 @@
#include <qsettings.h>
#include <qregexp.h>
#include <qstatusbar.h>
+#include <qlayout.h>
#include "port.h"
#include "dvbcut.h"
@@ -68,6 +69,7 @@
#include "exportdialog.h"
#include "settings.h"
#include "exception.h"
+#include "framesequence.h"
#include "version.h"
@@ -131,8 +133,11 @@
jogsliding(false), jogmiddlepic(0),
mplayer_process(0), imgp(0), busy(0),
viewscalefactor(1.0),
- nogui(false)
+ nogui(false),
+ frameseq_(0)
{
+ frameseq_ = new framesequence(imagedisplay->parentWidget(), 7, linslider);
+ layout7->addLayout(frameseq_->layout());
#ifndef HAVE_LIB_AO
playAudio1Action->setEnabled(false);
playAudio2Action->setEnabled(false);
@@ -1122,6 +1127,8 @@
goinput->setEnabled(false);
gobutton2->setEnabled(false);
goinput2->setEnabled(false);
+ frameseqbutton->setEnabled(false);
+ frameseqinput->setEnabled(false);
#ifdef HAVE_LIB_AO
@@ -1470,6 +1477,25 @@
//goinput2->clear();
}
+void dvbcut::clickedframeseq()
+{
+ QString text = frameseqinput->text();
+ text.stripWhiteSpace();
+ bool okay = false;
+ int dist;
+ if (text.contains(':') || text.contains('.')) {
+ okay = true;
+ dist = string2pts(text) / getTimePerFrame();
+ }
+ else
+ dist = text.toInt(&okay, 0);
+ if (okay) {
+ frameseq_->distance(dist);
+ frameseq_->update(curpic, fine /* true */);
+ }
+ //frameseqinput->clear();
+}
+
void dvbcut::mplayer_exited()
{
if (mplayer_process) {
@@ -1492,6 +1518,8 @@
goinput->setEnabled(true);
gobutton2->setEnabled(true);
goinput2->setEnabled(true);
+ frameseqbutton->setEnabled(true);
+ frameseqinput->setEnabled(true);
#ifdef HAVE_LIB_AO
@@ -1580,10 +1608,16 @@
if (showimage) {
if (!imgp)
imgp=new imageprovider(*mpg,new dvbcutbusy(this),false,viewscalefactor);
+
QPixmap px=imgp->getimage(curpic,fine);
imagedisplay->setMinimumSize(px.size());
imagedisplay->setPixmap(px);
qApp->processEvents();
+
+ if (!frameseq_->imgp())
+ frameseq_->imgp(new imageprovider(*mpg, new dvbcutbusy(this), false, viewscalefactor * 7.));
+
+ frameseq_->update(curpic, fine);
}
}
@@ -1728,6 +1762,8 @@
gobutton->setEnabled(false);
goinput2->setEnabled(false);
gobutton2->setEnabled(false);
+ frameseqbutton->setEnabled(false);
+ frameseqinput->setEnabled(false);
linslider->setEnabled(false);
jogslider->setEnabled(false);
@@ -2076,6 +2112,8 @@
gobutton->setEnabled(true);
goinput2->setEnabled(true);
gobutton2->setEnabled(true);
+ frameseqbutton->setEnabled(true);
+ frameseqinput->setEnabled(true);
linslider->setEnabled(true);
jogslider->setEnabled(true);
Index: src/framesequence.h
===================================================================
--- src/framesequence.h (revision 0)
+++ src/framesequence.h (revision 0)
@@ -0,0 +1,48 @@
+#ifndef __framesequence_h_included__
+#define __framesequence_h_included__
+
+// -*- mode: c++ -*-
+// Copyright (c) 2009 Olaf Dietsche
+
+#include <vector>
+#include <qobject.h>
+class QBoxLayout;
+class QPushButton;
+class QSlider;
+class QWidget;
+class imageprovider;
+
+class frame : public QObject {
+ Q_OBJECT
+public:
+ QPushButton *image_;
+ int frameno_;
+ QSlider *linslider_;
+public slots:
+ void gotoFrame();
+};
+
+class framesequence {
+public:
+ framesequence(QWidget *parent, int nframes, QSlider *slider, imageprovider *imgp = 0);
+ virtual ~framesequence();
+
+ QBoxLayout *layout() const { return layout_; }
+ imageprovider *imgp() const { return imgp_; }
+ void imgp(imageprovider *imgp) { imgp_ = imgp; }
+ void distance(int distance) { distance_ = distance; }
+ void update(int frameno, bool decodeallgop);
+
+private:
+ framesequence(const framesequence&);
+ framesequence& operator=(const framesequence&);
+
+ void createWidgets(QWidget *parent, int nframes, QSlider *slider);
+
+ QBoxLayout *layout_;
+ std::vector<frame*> frames_;
+ imageprovider *imgp_;
+ int distance_;
+};
+
+#endif
Index: src/dvbcutbase.ui
===================================================================
--- src/dvbcutbase.ui (revision 166)
+++ src/dvbcutbase.ui (working copy)
@@ -363,6 +363,63 @@
</widget>
</hbox>
</widget>
+ <widget class="QLayoutWidget">
+ <property name="name">
+ <cstring>layout6</cstring>
+ </property>
+ <hbox>
+ <property name="name">
+ <cstring>unnamed</cstring>
+ </property>
+ <widget class="QLineEdit">
+ <property name="name">
+ <cstring>frameseqinput</cstring>
+ </property>
+ <property name="enabled">
+ <bool>false</bool>
+ </property>
+ <property name="sizePolicy">
+ <sizepolicy>
+ <hsizetype>1</hsizetype>
+ <vsizetype>0</vsizetype>
+ <horstretch>0</horstretch>
+ <verstretch>0</verstretch>
+ </sizepolicy>
+ </property>
+ <property name="maxLength">
+ <number>16</number>
+ </property>
+ </widget>
+ <widget class="QPushButton">
+ <property name="name">
+ <cstring>frameseqbutton</cstring>
+ </property>
+ <property name="enabled">
+ <bool>false</bool>
+ </property>
+ <property name="text">
+ <string>go</string>
+ </property>
+ </widget>
+ <spacer>
+ <property name="name">
+ <cstring>spacer6</cstring>
+ </property>
+ <property name="orientation">
+ <enum>Horizontal</enum>
+ </property>
+ <property name="sizeType">
+ <enum>Expanding</enum>
+ </property>
+ <property name="sizeHint">
+ <size>
+ <width>2</width>
+ <height>10</height>
+ </size>
+ </property>
+ </spacer>
+ </hbox>
+ </widget>
</vbox>
</widget>
</widget>
@@ -1159,6 +1216,18 @@
<slot>clickedgo2()</slot>
</connection>
<connection>
+ <sender>frameseqbutton</sender>
+ <signal>clicked()</signal>
+ <receiver>dvbcutbase</receiver>
+ <slot>clickedframeseq()</slot>
+ </connection>
+ <connection>
+ <sender>frameseqinput</sender>
+ <signal>returnPressed()</signal>
+ <receiver>dvbcutbase</receiver>
+ <slot>clickedframeseq()</slot>
+ </connection>
+ <connection>
<sender>playPlayAction</sender>
<signal>activated()</signal>
<receiver>dvbcutbase</receiver>
@@ -1306,6 +1375,7 @@
<slot>eventlistcontextmenu(QListBoxItem *, const QPoint &)</slot>
<slot>clickedgo()</slot>
<slot>clickedgo2()</slot>
+ <slot>clickedframeseq()</slot>
<slot>playPlay()</slot>
<slot>playStop()</slot>
<slot>playAudio1()</slot>
Index: src/framesequence.cpp
===================================================================
--- src/framesequence.cpp (revision 0)
+++ src/framesequence.cpp (revision 0)
@@ -0,0 +1,71 @@
+// -*- mode: c++ -*-
+// Copyright (c) 2009 Olaf Dietsche
+
+#include "framesequence.h"
+#include <sstream>
+#include <qlayout.h>
+#include <qpushbutton.h>
+#include <qslider.h>
+#include "imageprovider.h"
+
+void frame::gotoFrame()
+{
+ linslider_->setValue(frameno_);
+}
+
+framesequence::framesequence(QWidget *parent, int nframes, QSlider *slider, imageprovider *imgp)
+ : layout_(0),
+ imgp_(imgp),
+ distance_(7500)
+{
+ createWidgets(parent, nframes, slider);
+}
+
+framesequence::~framesequence()
+{
+ for (std::vector<frame*>::iterator i = frames_.begin(); i != frames_.end(); ++i)
+ delete *i;
+
+ frames_.clear();
+// FIXME delete layout_;
+}
+
+void framesequence::update(int frameno, bool decodeallgop)
+{
+ if (!imgp_)
+ return;
+
+ int n = frames_.size();
+ frameno -= n / 2 * distance_;
+ for (std::vector<frame*>::iterator i = frames_.begin(); i != frames_.end(); ++i, frameno += distance_) {
+ QPixmap px = imgp_->getimage(frameno, decodeallgop);
+ if (px.isNull()) {
+ (*i)->image_->hide();
+ } else {
+ (*i)->frameno_ = frameno;
+ (*i)->image_->show();
+ (*i)->image_->setMinimumSize(px.size());
+ (*i)->image_->setPixmap(px);
+ }
+ }
+}
+
+void framesequence::createWidgets(QWidget *parent, int nframes, QSlider *slider)
+{
+ layout_ = new QHBoxLayout(-1, "framesequence");
+ QSpacerItem *spacer = new QSpacerItem(1, 1, QSizePolicy::Expanding, QSizePolicy::Minimum);
+ layout_->addItem(spacer);
+ for (int i = 0; i < nframes; ++i) {
+ QPushButton *w = new QPushButton(parent);
+ layout_->addWidget(w);
+ frame *f = new frame();
+ f->image_ = w;
+ f->linslider_ = slider;
+ frames_.push_back(f);
+ QObject::connect(w, SIGNAL(clicked()), f, SLOT(gotoFrame()));
+ w->hide();
+ }
+
+ spacer = new QSpacerItem(1, 1, QSizePolicy::Expanding, QSizePolicy::Minimum);
+ layout_->addItem(spacer);
+}
Index: src/dvbcut.h
===================================================================
--- src/dvbcut.h (revision 166)
+++ src/dvbcut.h (working copy)
@@ -31,6 +31,7 @@
class QProcess;
class imageprovider;
+class framesequence;
class dvbcut: public dvbcutbase
{
@@ -102,6 +103,7 @@
int exportformat;
bool start_bof;
bool stop_eof;
+ framesequence *frameseq_;
protected:
// QPixmap getpixmap(int picture, bool allgop=false);
@@ -186,6 +188,7 @@
virtual void mplayer_readstdout();
virtual void clickedgo();
virtual void clickedgo2();
+ virtual void clickedframeseq();
virtual void updateimagedisplay();
virtual void audiotrackchosen(int id);
virtual void loadrecentfile(int id);
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