From 2f01e7a558be65186900e278d6ffc91bbe3cc7f8 Mon Sep 17 00:00:00 2001
From: Francois Cartegnie <fcvlcdev@free.fr>
Date: Wed, 22 Feb 2012 22:04:56 +0100
Subject: [PATCH] Qt: info_panels: Add bitrate graph
---
modules/gui/qt4/Modules.am | 3 +
modules/gui/qt4/components/info_panels.cpp | 26 ++-
modules/gui/qt4/components/info_panels.hpp | 5 +
modules/gui/qt4/components/info_widgets.cpp | 180 ++++++++++++++++++++
modules/gui/qt4/components/info_widgets.hpp | 52 ++++++
po/POTFILES.in | 2 +
6 files changed, 263 insertions(+), 5 deletions(-)
create mode 100644 modules/gui/qt4/components/info_widgets.cpp
create mode 100644 modules/gui/qt4/components/info_widgets.hpp
diff --git a/modules/gui/qt4/Modules.am b/modules/gui/qt4/Modules.am
index 457d314c85a3..30f1f59d7743 100644
--- a/modules/gui/qt4/Modules.am
+++ b/modules/gui/qt4/Modules.am
@@ -47,6 +47,7 @@ nodist_SOURCES_qt4 = \
dialogs/extensions.moc.cpp \
components/extended_panels.moc.cpp \
components/info_panels.moc.cpp \
+ components/info_widgets.moc.cpp \
components/preferences_widgets.moc.cpp \
components/complete_preferences.moc.cpp \
components/simple_preferences.moc.cpp \
@@ -305,6 +306,7 @@ SOURCES_qt4 = qt4.cpp \
dialogs/extensions.cpp \
components/extended_panels.cpp \
components/info_panels.cpp \
+ components/info_widgets.cpp \
components/preferences_widgets.cpp \
components/complete_preferences.cpp \
components/simple_preferences.cpp \
@@ -380,6 +382,7 @@ noinst_HEADERS = \
dialogs/extensions.hpp \
components/extended_panels.hpp \
components/info_panels.hpp \
+ components/info_widgets.hpp \
components/preferences_widgets.hpp \
components/complete_preferences.hpp \
components/simple_preferences.hpp \
diff --git a/modules/gui/qt4/components/info_panels.cpp b/modules/gui/qt4/components/info_panels.cpp
index 0b051d4baed4..2f93d8e4a77d 100644
--- a/modules/gui/qt4/components/info_panels.cpp
+++ b/modules/gui/qt4/components/info_panels.cpp
@@ -33,6 +33,7 @@
#include "qt4.hpp"
#include "components/info_panels.hpp"
#include "components/interface_widgets.hpp"
+#include "info_widgets.hpp"
#include <assert.h>
#include <vlc_url.h>
@@ -491,7 +492,7 @@ void InfoPanel::saveCodecsInfo()
*/
InputStatsPanel::InputStatsPanel( QWidget *parent ): QWidget( parent )
{
- QGridLayout *layout = new QGridLayout(this);
+ QVBoxLayout *layout = new QVBoxLayout(this);
QLabel *topLabel = new QLabel( qtr( "Current"
" media / stream " "statistics") );
@@ -526,6 +527,8 @@ InputStatsPanel::InputStatsPanel( QWidget *parent ): QWidget( parent )
"0", input , "KiB" );
CREATE_AND_ADD_TO_CAT( input_bitrate_stat, qtr("Input bitrate"),
"0", input, "kb/s" );
+ input_bitrate_graph = new QTreeWidgetItem();
+ input_bitrate_stat->addChild( input_bitrate_graph );
CREATE_AND_ADD_TO_CAT( demuxed_stat, qtr("Demuxed data size"), "0", input, "KiB") ;
CREATE_AND_ADD_TO_CAT( stream_bitrate_stat, qtr("Content bitrate"),
"0", input, "kb/s" );
@@ -565,7 +568,19 @@ InputStatsPanel::InputStatsPanel( QWidget *parent ): QWidget( parent )
StatsTree->resizeColumnToContents( 0 );
StatsTree->setColumnWidth( 1 , 200 );
- layout->addWidget(StatsTree, 1, 0 );
+ layout->addWidget(StatsTree, 4, 0 );
+
+ statsView = new VLCStatsView( this );
+ statsView->setFrameStyle( QFrame::NoFrame );
+ statsView->setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Fixed );
+ input_bitrate_graph->setSizeHint( 1, QSize(0, 100) );
+ StatsTree->setItemWidget( input_bitrate_graph, 1, statsView );
+}
+
+void InputStatsPanel::hideEvent( QHideEvent * event )
+{
+ statsView->reset();
+ QWidget::hideEvent( event );
}
/**
@@ -584,12 +599,14 @@ void InputStatsPanel::update( input_item_t *p_item )
{ QString str; widget->setText( 1 , str.sprintf( format, ## calc ) ); }
UPDATE_INT( read_media_stat, (p_item->p_stats->i_read_bytes / 1024 ) );
- UPDATE_FLOAT( input_bitrate_stat, "%6.0f", (float)(p_item->p_stats->f_input_bitrate * 8000 ));
+ UPDATE_FLOAT( input_bitrate_stat, "%6.0f", (float)(p_item->p_stats->f_input_bitrate * 8000 ));
UPDATE_INT( demuxed_stat, (p_item->p_stats->i_demux_read_bytes / 1024 ) );
- UPDATE_FLOAT( stream_bitrate_stat, "%6.0f", (float)(p_item->p_stats->f_demux_bitrate * 8000 ));
+ UPDATE_FLOAT( stream_bitrate_stat, "%6.0f", (float)(p_item->p_stats->f_demux_bitrate * 8000 ));
UPDATE_INT( corrupted_stat, p_item->p_stats->i_demux_corrupted );
UPDATE_INT( discontinuity_stat, p_item->p_stats->i_demux_discontinuity );
+ statsView->addValue( p_item->p_stats->f_input_bitrate * 8000 );
+
/* Video */
UPDATE_INT( vdecoded_stat, p_item->p_stats->i_decoded_video );
UPDATE_INT( vdisplayed_stat, p_item->p_stats->i_displayed_pictures );
@@ -614,4 +631,3 @@ void InputStatsPanel::update( input_item_t *p_item )
void InputStatsPanel::clear()
{
}
-
diff --git a/modules/gui/qt4/components/info_panels.hpp b/modules/gui/qt4/components/info_panels.hpp
index ce30edfd66b8..c0b9ce1be7fe 100644
--- a/modules/gui/qt4/components/info_panels.hpp
+++ b/modules/gui/qt4/components/info_panels.hpp
@@ -51,6 +51,7 @@ class QLineEdit;
class CoverArtLabel;
class QTextEdit;
class QLabel;
+class VLCStatsView;
class MetaPanel: public QWidget
{
@@ -116,11 +117,14 @@ class InputStatsPanel: public QWidget
Q_OBJECT
public:
InputStatsPanel( QWidget * );
+protected:
+ virtual void hideEvent( QHideEvent * );
private:
QTreeWidget *StatsTree;
QTreeWidgetItem *input;
QTreeWidgetItem *read_media_stat;
QTreeWidgetItem *input_bitrate_stat;
+ QTreeWidgetItem *input_bitrate_graph;
QTreeWidgetItem *demuxed_stat;
QTreeWidgetItem *stream_bitrate_stat;
QTreeWidgetItem *corrupted_stat;
@@ -142,6 +146,7 @@ private:
QTreeWidgetItem *aplayed_stat;
QTreeWidgetItem *alost_stat;
+ VLCStatsView *statsView;
public slots:
void update( input_item_t * );
void clear();
diff --git a/modules/gui/qt4/components/info_widgets.cpp b/modules/gui/qt4/components/info_widgets.cpp
new file mode 100644
index 000000000000..f7bbbff08847
--- /dev/null
+++ b/modules/gui/qt4/components/info_widgets.cpp
@@ -0,0 +1,180 @@
+/*****************************************************************************
+ * info_widgets.cpp : Widgets for info panels
+ ****************************************************************************
+ * Copyright (C) 2013 the VideoLAN team
+ *
+ * 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 "qt4.hpp"
+#include "info_widgets.hpp"
+
+#include <QGridLayout>
+#include <QLabel>
+#include <QGraphicsView>
+#include <QGraphicsScene>
+#include <QPolygonF>
+#include <QGraphicsPolygonItem>
+#include <QGraphicsLineItem>
+#include <QVectorIterator>
+
+#define STATS_LENGTH 10
+#define ADD_LABEL(row, color, text) \
+label = new QLabel( QString( "<font color=\"%1\">%2</font>" ) \
+ .arg( color.name() ) \
+ .arg( text ) \
+ ); \
+layout->addWidget( label, row, 0, 1, 1, 0 );
+
+VLCStatsView::VLCStatsView( QWidget *parent ) : QGraphicsView( parent )
+{
+ QColor history(0, 0, 0, 255),
+ total(237, 109, 0, 160),
+ content(109, 237, 0, 160);
+
+ scale( 1.0, -1.0 ); /* invert our Y axis */
+ setOptimizationFlags( QGraphicsView::DontAdjustForAntialiasing );
+ setAlignment( Qt::AlignLeft );
+ setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
+ setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
+ viewScene = new QGraphicsScene( this );
+ historyShape = viewScene->addPolygon( QPolygonF(), QPen(Qt::NoPen),
+ QBrush(history) );
+ totalbitrateShape = viewScene->addPolygon( QPolygonF(), QPen(Qt::NoPen),
+ QBrush(total) );
+ setScene( viewScene );
+ reset();
+
+ QPen linepen( Qt::DotLine );
+ linepen.setBrush( QBrush( QColor( 33, 33, 33 ) ) );
+ for ( int i=0; i<3; i++ )
+ rulers[i] = viewScene->addLine( QLineF(), linepen );
+}
+#undef ADD_LABEL
+
+void VLCStatsView::reset()
+{
+ historymergepointer = 0;
+ blocksize = 4;
+ valuesaccumulator = 0;
+ valuesaccumulatorcount = 0;
+ historyShape->setPolygon( QPolygonF() );
+ totalbitrateShape->setPolygon( QPolygonF() );
+}
+
+void VLCStatsView::addValue( float value )
+{
+ value /= 1000;
+
+ QPolygonF shape = totalbitrateShape->polygon();
+ if ( shape.count() > ( STATS_LENGTH + 2 ) ) /* keep only STATS_LENGTH samples */
+ {
+ shape.remove( 1 );
+ for(int i=1; i<( STATS_LENGTH + 2 ); i++)
+ ( (QPointF &) shape.at(i) ).setX( i - 1 ); /*move back values*/
+ }
+
+ int count = shape.count();
+ if ( count == 0 )
+ {
+ shape << QPointF( 0, 0 ); /* begin and close shape */
+ shape << QPointF( count, 0 );
+ }
+
+ shape.insert( shape.end() - 1, QPointF( count, value ) );
+ ( (QPointF &) shape.last() ).setX( count );
+ totalbitrateShape->setPolygon( shape );
+
+ addHistoryValue( value );
+
+ QRectF maxsizes = scene()->itemsBoundingRect();
+ maxsizes.setRight( STATS_LENGTH );
+ fitInView( maxsizes ); /* fix viewport */
+ drawRulers( maxsizes );
+}
+
+void VLCStatsView::drawRulers( const QRectF &maxsizes )
+{
+ float height = maxsizes.height() * 1000;
+ int texp = 0;
+ while( height > 1.0 ) { height /= 10; texp++; }
+ height = 1.0;
+ while( texp-- ) height *= 10;
+ for ( int i=0; i<3; i++ )
+ {
+ float y = ( height / 5 ) * ( i + 1 ) / 1000;
+ rulers[i]->setLine( QLineF( 0, y, STATS_LENGTH, y ) );
+ }
+}
+
+void VLCStatsView::addHistoryValue( float value )
+{
+ /* We keep a full history by creating virtual blocks for inserts, growing
+ by power of 2 when no more space is available. At this time, we also
+ free space by agregating the oldest values 2 by 2.
+ Each shown value finally being a mean of blocksize samples.
+ */
+ bool doinsert = false;
+ int next_blocksize = blocksize;
+ QPolygonF shape = historyShape->polygon();
+ int count = shape.count();
+ if ( count == 0 )
+ {
+ shape << QPointF( 0, 0 ); /* begin and close shape */
+ shape << QPointF( count, 0 );
+ }
+
+ valuesaccumulator += ( value / blocksize );
+ valuesaccumulatorcount++;
+
+ if ( valuesaccumulatorcount == blocksize )
+ {
+ valuesaccumulator = 0;
+ valuesaccumulatorcount = 0;
+ doinsert = true;
+ }
+
+ if ( doinsert )
+ {
+ if ( count > ( STATS_LENGTH + 2 ) )
+ {
+ float y = 0;
+ y += ((QPointF &) shape.at( historymergepointer + 1 )).y();
+ y += ((QPointF &) shape.at( historymergepointer + 2 )).y();
+ y /= 2;
+
+ /* merge */
+ shape.remove( historymergepointer + 2 );
+ ( (QPointF &) shape.at( historymergepointer + 1 ) ).setY( y );
+ for(int i=historymergepointer +1; i<( STATS_LENGTH + 2 ); i++)
+ ( (QPointF &) shape.at(i) ).setX( i - 1 ); /*move back values*/
+ historymergepointer++;
+ if ( historymergepointer > ( STATS_LENGTH - 1 ) )
+ {
+ historymergepointer = 0;
+ next_blocksize = ( blocksize << 1 );
+ }
+ }
+
+ shape.insert( shape.end() - 1, QPointF( count, value ) );
+ ( (QPointF &) shape.last() ).setX( count );
+ }
+ else
+ ( (QPointF &) shape.last() ).setX( count - 1 );
+
+ historyShape->setPolygon( shape );
+
+ blocksize = next_blocksize;
+}
diff --git a/modules/gui/qt4/components/info_widgets.hpp b/modules/gui/qt4/components/info_widgets.hpp
new file mode 100644
index 000000000000..0a1b22b25eb0
--- /dev/null
+++ b/modules/gui/qt4/components/info_widgets.hpp
@@ -0,0 +1,52 @@
+/*****************************************************************************
+ * info_widgets.hpp : Widgets for info panels
+ ****************************************************************************
+ * Copyright (C) 2013 the VideoLAN team
+ *
+ * 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.
+ *****************************************************************************/
+#ifndef INFO_WIDGETS_HPP
+#define INFO_WIDGETS_HPP
+
+#include <QGraphicsView>
+
+class QGraphicsView;
+class QGraphicsScene;
+class QGraphicsPolygonItem;
+class QGraphicsLineItem;
+
+class VLCStatsView: public QGraphicsView
+{
+ Q_OBJECT
+
+public:
+ VLCStatsView( QWidget * );
+ void addValue( float );
+ void reset();
+
+private:
+ void addHistoryValue( float );
+ void drawRulers( const QRectF & );
+ QGraphicsScene *viewScene;
+ QGraphicsPolygonItem *totalbitrateShape;
+ QGraphicsPolygonItem *historyShape;
+ QGraphicsLineItem *rulers[3];
+ unsigned int historymergepointer;
+ unsigned int blocksize;
+ float valuesaccumulator;
+ unsigned int valuesaccumulatorcount;
+};
+
+#endif // INFO_WIDGETS_HPP
diff --git a/po/POTFILES.in b/po/POTFILES.in
index cd1a3c7332f1..4ece099b8ad4 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -605,6 +605,8 @@ modules/gui/qt4/components/extended_panels.cpp
modules/gui/qt4/components/extended_panels.hpp
modules/gui/qt4/components/info_panels.cpp
modules/gui/qt4/components/info_panels.hpp
+modules/gui/qt4/components/info_widgets.cpp
+modules/gui/qt4/components/info_widgets.hpp
modules/gui/qt4/components/interface_widgets.cpp
modules/gui/qt4/components/interface_widgets.hpp
modules/gui/qt4/components/open_panels.cpp
--
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