my last try to get mediaplayer2 more stable.

-> protected the videobuffer with mutex, make a deep copy of it so xine may
   destruct its internal buffers as wanted

2 files changed, 229 insertions, 184 deletions

diff --git a/noncore/multimedia/opieplayer2/xinevideowidget.cpp b/noncore/multimedia/opieplayer2/xinevideowidget.cpp
index 9e86041..211791b 100644
--- a/noncore/multimedia/opieplayer2/xinevideowidget.cpp
+++ b/noncore/multimedia/opieplayer2/xinevideowidget.cpp
@@ -1,66 +1,71 @@
 
 /*
-                            This file is part of the Opie Project
+                            This file is part of the Opie Project
 
-                             Copyright (c)  2002 Robert Griebl <sandman@handhelds.org>
+                             Copyright (c)  2002 Max Reiss <harlekin@handhelds.org>
+                             Copyright (c)  2002 L. Potter <ljp@llornkcor.com>
                              Copyright (c)  2002 Holger Freyther <zecke@handhelds.org>
               =.
             .=l.
-           .>+-=
- _;:,     .>    :=|.         This program is free software; you can
-.> <`_,   >  .   <=          redistribute it and/or  modify it under
-:`=1 )Y*s>-.--   :           the terms of the GNU General Public
-.="- .-=="i,     .._         License as published by the Free Software
- - .   .-<_>     .<>         Foundation; either version 2 of the License,
-     ._= =}       :          or (at your option) any later version.
-    .%`+i>       _;_.
-    .i_,=:_.      -<s.       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
-..}^=.=       =       ;      Library General Public License for more
-++=   -.     .`     .:       details.
- :     =  ...= . :.=-
- -.   .:....=;==+<;          You should have received a copy of the GNU
-  -_. . .   )=.  =           Library General Public License along with
-    --        :-=`           this library; see the file COPYING.LIB.
+           .>+-=
+ _;:,     .>    :=|.         This program is free software; you can
+.> <`_,   >  .   <=          redistribute it and/or  modify it under
+:`=1 )Y*s>-.--   :           the terms of the GNU General Public
+.="- .-=="i,     .._         License as published by the Free Software
+ - .   .-<_>     .<>         Foundation; either version 2 of the License,
+     ._= =}       :          or (at your option) any later version.
+    .%`+i>       _;_.
+    .i_,=:_.      -<s.       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
+..}^=.=       =       ;      Library General Public License for more
+++=   -.     .`     .:       details.
+ :     =  ...= . :.=-
+ -.   .:....=;==+<;          You should have received a copy of the GNU
+  -_. . .   )=.  =           Library General Public License along with
+    --        :-=`           this library; see the file COPYING.LIB.
                              If not, write to the Free Software Foundation,
                              Inc., 59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
+#include "xinevideowidget.h"
+#include <opie2/odebug.h>
+
 #include <qimage.h>
 #include <qdirectpainter_qws.h>
 #include <qgfx_qws.h>
 #include <qsize.h>
 #include <qapplication.h>
 
 #include <qpe/resource.h>
 
-#include "xinevideowidget.h"
+#include <pthread.h>
+
 
 
 // 0 deg rot: copy a line from src to dst (use libc memcpy)
 
 // 180 deg rot: copy a line from src to dst reversed
 
 /*
  * This code relies the len be a multiply of 16bit
  */
 static inline void memcpy_rev ( void *_dst, void *_src, size_t len )
 {
 
     /*
      * move the source to the end
      */
     char *src_c = static_cast<char*>(_src) + len;
 
     /*
      * as we copy by 16bit and not 8bit
      * devide the length by two
      */
     len >>= 1;
 
     short int* dst = static_cast<short int*>( _dst );
@@ -91,216 +96,252 @@ static inline void memcpy_step ( void *_dst, void *_src, size_t len, size_t step
         *dst++ = *src;
         src = reinterpret_cast<short int*>(reinterpret_cast<char*>(src)+step);
     }
 }
 
 // 270 deg rot: copy a column from src to dst reversed
 
 static inline void memcpy_step_rev ( void *_dst, void *_src, size_t len, size_t step )
 {
     len >>= 1;
 
     char *src_c = static_cast<char*>( _src ) + (len*step);
     short int* dst = static_cast<short int*>( _dst );
     short int* src = reinterpret_cast<short int*>( src_c );
 
     while ( len-- ) {
         src_c -= step;
         src = reinterpret_cast<short int*>( src_c );
         *dst++ = *src;
     }
 }
 
 
 XineVideoWidget::XineVideoWidget ( QWidget* parent, const char* name )
-        : QWidget ( parent, name, WRepaintNoErase | WResizeNoErase )
+    : QWidget ( parent, name, WRepaintNoErase | WResizeNoErase )
 {
-        setBackgroundMode ( NoBackground );
-
-        m_logo              = 0;
-        m_buff              = 0;
-        m_bytes_per_line_fb = qt_screen-> linestep ( );
-        m_bytes_per_pixel   = ( qt_screen->depth() + 7 ) / 8;
-        m_rotation          = 0;
+    setBackgroundMode ( NoBackground );
+
+    m_logo              = 0;
+    m_buff              = 0;
+    m_bytes_per_line_fb = qt_screen-> linestep ( );
+    m_bytes_per_pixel   = ( qt_screen->depth() + 7 ) / 8;
+    m_rotation          = 0;
+    m_lastsize = 0;
 }
 
 
 XineVideoWidget::~XineVideoWidget ( )
 {
-        delete m_logo;
+    ThreadUtil::AutoLock a(m_bufmutex);
+    if (m_buff) {
+        delete[]m_buff;
+        m_lastsize=0;
+        m_buff = 0;
+    }
+    if (m_logo) {
+        delete m_logo;
+    }
 }
 
 void XineVideoWidget::clear ( )
 {
-        m_buff = 0;
-        repaint ( false );
+    ThreadUtil::AutoLock a(m_bufmutex);
+    if (m_buff) {
+        delete[]m_buff;
+        m_lastsize=0;
+        m_buff = 0;
+    }
+    repaint ( false );
 }
 
 QSize XineVideoWidget::videoSize() const
 {
     QSize s = size();
     bool fs = ( s == qApp->desktop()->size() );
 
     // if we are in fullscreen mode, do not rotate the video
     // (!! the paint routine uses m_rotation + qt_screen-> transformOrientation() !!)
     m_rotation = fs ? - qt_screen->transformOrientation() : 0;
 
     if ( fs && qt_screen->isTransformed() )
         s = qt_screen->mapToDevice( s );
 
     return s;
 }
 
 void XineVideoWidget::paintEvent ( QPaintEvent * )
 {
-        if ( m_buff == 0 ) {
-                QPainter p ( this );
-                p. fillRect ( rect ( ), black );
-                if ( m_logo )
-                        p. drawImage ( 0, 0, *m_logo );
-        }
-        else {
-                // Qt needs to be notified which areas were really updated .. strange
-                QArray <QRect> qt_bug_workaround_clip_rects;
-
-                {
-                        QDirectPainter dp ( this );
-
-                        int rot = dp. transformOrientation ( ) + m_rotation; // device rotation + custom rotation
-
-                        uchar *fb = dp. frameBuffer ( );
-                        uchar *frame = m_buff;
-
-                        // where is the video frame in fb coordinates
-                        QRect framerect = qt_screen-> mapToDevice ( QRect ( mapToGlobal ( m_thisframe. topLeft ( )), m_thisframe. size ( )), QSize ( qt_screen-> width ( ), qt_screen-> height ( )));
-
-                        qt_bug_workaround_clip_rects. resize ( dp. numRects ( ));
-
-                        for ( int i = dp. numRects ( ) - 1; i >= 0; i-- ) {
-                                const QRect &clip = dp. rect ( i );
-
-                                qt_bug_workaround_clip_rects [ i ] = qt_screen-> mapFromDevice ( clip, QSize ( qt_screen-> width ( ), qt_screen-> height ( )));
-
-                                        uchar *dst = fb + ( clip. x ( ) * m_bytes_per_pixel ) + ( clip. y ( ) * m_bytes_per_line_fb ); // clip x/y in the fb
-                                uchar *src = frame;
-
-                                // Adjust the start the source data based on the rotation (xine frame)
-                                switch ( rot ) {
-                                        case  0: src += ((( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame )); break;
-                                        case  1: src += ((( clip. y ( ) - framerect. y ( )) * m_bytes_per_pixel ) + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_line_frame ) + (( framerect. height ( ) - 1 ) * m_bytes_per_pixel )); break;
-                                        case  2: src += ((( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame ) + (( framerect. height ( ) - 1 ) * m_bytes_per_line_frame )); break;
-                                        case  3: src += ((( clip. y ( ) - framerect. y ( )) * m_bytes_per_pixel ) + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_line_frame )); break;
-                                        default: break;
-                                }
-
-                                // all of the following widths/heights are fb relative (0deg rotation)
-
-                                uint leftfill = 0;   // black border on the "left" side of the video frame
-                                uint framefill = 0;  // "width" of the video frame
-                                uint rightfill = 0;  // black border on the "right" side of the video frame
-                                uint clipwidth = clip. width ( ) * m_bytes_per_pixel;  // "width" of the current clip rect
-
-                                if ( clip. left ( ) < framerect. left ( ))
-                                        leftfill = (( framerect. left ( ) - clip. left ( )) * m_bytes_per_pixel ) <? clipwidth;
-                                if ( clip. right ( ) > framerect. right ( ))
-                                        rightfill = (( clip. right ( ) - framerect. right ( )) * m_bytes_per_pixel ) <? clipwidth;
-
-                                framefill = clipwidth - ( leftfill + rightfill );
-
-                                for ( int y = clip. top ( ); y <= clip. bottom ( ); y++ ) {
-                                        if (( y < framerect. top ( )) || ( y > framerect. bottom ( ))) {
-                                                // "above" or "below" the video -> black
-                                                memset ( dst, 0, clipwidth );
-                                        }
-                                        else {
-                                                if ( leftfill )
-                                                        memset ( dst, 0, leftfill ); // "left" border -> black
-
-                                                if ( framefill ) { // blit in the video frame
-                                                        // see above for an explanation of the different memcpys
-
-                                                        switch ( rot ) {
-                                                                case  0: memcpy ( dst + leftfill, src, framefill & ~1 ); break;
-                                                                case  1: memcpy_step ( dst + leftfill, src, framefill, m_bytes_per_line_frame ); break;
-                                                                case  2: memcpy_rev ( dst + leftfill, src, framefill ); break;
-                                                                case  3: memcpy_step_rev ( dst + leftfill, src, framefill, m_bytes_per_line_frame ); break;
-                                                                default: break;
-                                                        }
-                                                }
-                                                if ( rightfill )
-                                                        memset ( dst + leftfill + framefill, 0, rightfill ); // "right" border -> black
-                                        }
-
-                                        dst += m_bytes_per_line_fb; // advance one line in the framebuffer
-
-                                        // advance one "line" in the xine frame data
-                                        switch ( rot ) {
-                                                        case  0: src += m_bytes_per_line_frame;break;
-                                                case  1: src -= m_bytes_per_pixel;      break;
-                                                case  2: src -= m_bytes_per_line_frame; break;
-                                                case  3: src += m_bytes_per_pixel;      break;
-                                                default: break;
-                                        }
-                                }
-                        }
-                }
-
-                {
-                        // QVFB hack by Martin Jones
-                        // We need to "touch" all affected clip rects with a normal QPainter in addition to the QDirectPainter
-
-                        QPainter p ( this );
-
-                        for ( int i = qt_bug_workaround_clip_rects. size ( ) - 1; i >= 0; i-- ) {
-                                p. fillRect ( QRect ( mapFromGlobal ( qt_bug_workaround_clip_rects [ i ]. topLeft ( )), qt_bug_workaround_clip_rects [ i ]. size ( )), QBrush ( NoBrush ));
-                        }
-                }
-        }
+    ThreadUtil::AutoLock a(m_bufmutex);
+    QPainter p ( this );
+    p. fillRect ( rect (), black );
+    if (m_logo)
+        p. drawImage ( 0, 0, *m_logo );
+}
+
+void XineVideoWidget::paintEvent2 ( QPaintEvent * )
+{
+    ThreadUtil::AutoLock a(m_bufmutex);
+    if ( m_buff == 0 ) {
+        QPainter p ( this );
+        p. fillRect ( rect ( ), black );
+        if ( m_logo )
+            p. drawImage ( 0, 0, *m_logo );
+    }
+    else {
+        // Qt needs to be notified which areas were really updated .. strange
+        QArray <QRect> qt_bug_workaround_clip_rects;
+
+        {
+            QDirectPainter dp ( this );
+
+            int rot = dp. transformOrientation ( ) + m_rotation; // device rotation + custom rotation
+
+            uchar *fb = dp. frameBuffer ( );
+            uchar *frame = m_buff;
+
+            // where is the video frame in fb coordinates
+            QRect framerect = qt_screen-> mapToDevice ( QRect ( mapToGlobal ( m_thisframe. topLeft ( )), m_thisframe. size ( )), QSize ( qt_screen-> width ( ), qt_screen-> height ( )));
+
+            qt_bug_workaround_clip_rects. resize ( dp. numRects ( ));
+
+            for ( int i = dp. numRects ( ) - 1; i >= 0; i-- ) {
+                const QRect &clip = dp. rect ( i );
+
+                qt_bug_workaround_clip_rects [ i ] = qt_screen-> mapFromDevice ( clip, QSize ( qt_screen-> width ( ), qt_screen-> height ( )));
+
+                uchar *dst = fb + ( clip. x ( ) * m_bytes_per_pixel ) + ( clip. y ( ) * m_bytes_per_line_fb );  // clip x/y in the fb
+                uchar *src = frame;
+
+                // Adjust the start the source data based on the rotation (xine frame)
+                switch ( rot ) {
+                    case  0: src += ((( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame )); break;
+                    case  1: src += ((( clip. y ( ) - framerect. y ( )) * m_bytes_per_pixel ) + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_line_frame ) + (( framerect. height ( ) - 1 ) * m_bytes_per_pixel )); break;
+                    case  2: src += ((( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame ) + (( framerect. height ( ) - 1 ) * m_bytes_per_line_frame )); break;
+                    case  3: src += ((( clip. y ( ) - framerect. y ( )) * m_bytes_per_pixel ) + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_line_frame )); break;
+                    default: break;
+                }
+
+                // all of the following widths/heights are fb relative (0deg rotation)
+
+                uint leftfill = 0;   // black border on the "left" side of the video frame
+                uint framefill = 0;  // "width" of the video frame
+                uint rightfill = 0;  // black border on the "right" side of the video frame
+                uint clipwidth = clip. width ( ) * m_bytes_per_pixel;  // "width" of the current clip rect
+
+                if ( clip. left ( ) < framerect. left ( ))
+                    leftfill = (( framerect. left ( ) - clip. left ( )) * m_bytes_per_pixel ) <? clipwidth;
+                if ( clip. right ( ) > framerect. right ( ))
+                    rightfill = (( clip. right ( ) - framerect. right ( )) * m_bytes_per_pixel ) <? clipwidth;
+
+                framefill = clipwidth - ( leftfill + rightfill );
+
+                for ( int y = clip. top ( ); y <= clip. bottom ( ); y++ ) {
+                    if (( y < framerect. top ( )) || ( y > framerect. bottom ( ))) {
+                        // "above" or "below" the video -> black
+                        memset ( dst, 0, clipwidth );
+                    }
+                    else {
+                        if ( leftfill )
+                            memset ( dst, 0, leftfill ); // "left" border -> black
+
+                        if ( framefill ) { // blit in the video frame
+                            // see above for an explanation of the different memcpys
+
+                            switch ( rot ) {
+                                case  0: memcpy ( dst + leftfill, src, framefill & ~1 ); break;
+                                case  1: memcpy_step ( dst + leftfill, src, framefill, m_bytes_per_line_frame ); break;
+                                case  2: memcpy_rev ( dst + leftfill, src, framefill ); break;
+                                case  3: memcpy_step_rev ( dst + leftfill, src, framefill, m_bytes_per_line_frame ); break;
+                                default: break;
+                            }
+                        }
+                        if ( rightfill )
+                            memset ( dst + leftfill + framefill, 0, rightfill ); // "right" border -> black
+                    }
+
+                    dst += m_bytes_per_line_fb; // advance one line in the framebuffer
+
+                    // advance one "line" in the xine frame data
+                    switch ( rot ) {
+                        case  0: src += m_bytes_per_line_frame; break;
+                        case  1: src -= m_bytes_per_pixel;      break;
+                        case  2: src -= m_bytes_per_line_frame; break;
+                        case  3: src += m_bytes_per_pixel;      break;
+                        default: break;
+                    }
+                }
+            }
+        }
+
+        {
+            // QVFB hack by Martin Jones
+            // We need to "touch" all affected clip rects with a normal QPainter in addition to the QDirectPainter
+
+            QPainter p ( this );
+
+            for ( int i = qt_bug_workaround_clip_rects. size ( ) - 1; i >= 0; i-- ) {
+                p. fillRect ( QRect ( mapFromGlobal ( qt_bug_workaround_clip_rects [ i ]. topLeft ( )), qt_bug_workaround_clip_rects [ i ]. size ( )), QBrush ( NoBrush ));
+            }
+        }
+    }
 }
 
 
 QImage *XineVideoWidget::logo ( ) const
 {
-        return m_logo;
+    return m_logo;
 }
 
 
 void XineVideoWidget::setLogo ( QImage* logo )
 {
-        delete m_logo;
-        m_logo = logo;
+    delete m_logo;
+    m_logo = logo;
 }
 
 void XineVideoWidget::setVideoFrame ( uchar* img, int w, int h, int bpl )
 {
-        bool rot90 = (( -m_rotation ) & 1 );
-
-        if ( rot90 ) { // if the rotation is 90 or 270 we have to swap width / height
-                int d = w;
-                w = h;
-                h = d;
-        }
-
-        m_lastframe = m_thisframe;
-        m_thisframe. setRect (( width ( ) - w ) / 2, ( height ( ) - h ) / 2, w , h );
-
-        m_buff                 = img;
-        m_bytes_per_line_frame = bpl;
-
-        // only repaint the area that *really* needs to be repainted
-
-        repaint ((( m_thisframe & m_lastframe ) != m_lastframe ) ? m_lastframe : m_thisframe, false );
-        // ensure that we always have a valid frame!
-        m_buff = 0;
+    // mutex area for AutoLock
+    {
+        if (m_bufmutex.isLocked()) {
+            // no time to wait - drop frame
+            return;
+        }
+        ThreadUtil::AutoLock a(m_bufmutex);
+        bool rot90 = (( -m_rotation ) & 1 );
+        int l = h*m_bytes_per_pixel*w;
+        if (l>m_lastsize) {
+            if (m_buff) {
+                delete[]m_buff;
+            }
+            m_buff = new uchar[l];
+            m_lastsize=l;
+        }
+
+        if ( rot90 ) { // if the rotation is 90 or 270 we have to swap width / height
+            int d = w;
+            w = h;
+            h = d;
+        }
+
+        m_lastframe = m_thisframe;
+        m_thisframe. setRect (( width ( ) - w ) / 2, ( height ( ) - h ) / 2, w , h );
+
+        memcpy(m_buff,img,m_lastsize);
+        m_bytes_per_line_frame = bpl;
+    } // Release Mutex
+
+    paintEvent2(0);
 }
 
 void XineVideoWidget::resizeEvent ( QResizeEvent * )
 {
     emit videoResized( videoSize() );
 }
 
 
 void XineVideoWidget::mouseReleaseEvent ( QMouseEvent * /*me*/ )
 {
-        emit clicked();
+    emit clicked();
 }
 
diff --git a/noncore/multimedia/opieplayer2/xinevideowidget.h b/noncore/multimedia/opieplayer2/xinevideowidget.h
index 8b3a3ea..7f00aaa 100644
--- a/noncore/multimedia/opieplayer2/xinevideowidget.h
+++ b/noncore/multimedia/opieplayer2/xinevideowidget.h
@@ -1,76 +1,80 @@
+
 /*
-                            This file is part of the Opie Project
+                            This file is part of the Opie Project
 
-                             Copyright (c)  2002 Robert Griebl <sandman@handhelds.org>
+                             Copyright (c)  2002 Max Reiss <harlekin@handhelds.org>
+                             Copyright (c)  2002 L. Potter <ljp@llornkcor.com>
                              Copyright (c)  2002 Holger Freyther <zecke@handhelds.org>
               =.
             .=l.
-           .>+-=
- _;:,     .>    :=|.         This program is free software; you can
-.> <`_,   >  .   <=          redistribute it and/or  modify it under
-:`=1 )Y*s>-.--   :           the terms of the GNU General Public
-.="- .-=="i,     .._         License as published by the Free Software
- - .   .-<_>     .<>         Foundation; either version 2 of the License,
-     ._= =}       :          or (at your option) any later version.
-    .%`+i>       _;_.
-    .i_,=:_.      -<s.       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
-..}^=.=       =       ;      Library General Public License for more
-++=   -.     .`     .:       details.
- :     =  ...= . :.=-
- -.   .:....=;==+<;          You should have received a copy of the GNU
-  -_. . .   )=.  =           Library General Public License along with
-    --        :-=`           this library; see the file COPYING.LIB.
+           .>+-=
+ _;:,     .>    :=|.         This program is free software; you can
+.> <`_,   >  .   <=          redistribute it and/or  modify it under
+:`=1 )Y*s>-.--   :           the terms of the GNU General Public
+.="- .-=="i,     .._         License as published by the Free Software
+ - .   .-<_>     .<>         Foundation; either version 2 of the License,
+     ._= =}       :          or (at your option) any later version.
+    .%`+i>       _;_.
+    .i_,=:_.      -<s.       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
+..}^=.=       =       ;      Library General Public License for more
+++=   -.     .`     .:       details.
+ :     =  ...= . :.=-
+ -.   .:....=;==+<;          You should have received a copy of the GNU
+  -_. . .   )=.  =           Library General Public License along with
+    --        :-=`           this library; see the file COPYING.LIB.
                              If not, write to the Free Software Foundation,
                              Inc., 59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 
-
 #include <qwidget.h>
 
 #include "lib.h"
 
 class QImage;
 
 
 class XineVideoWidget : public QWidget {
     Q_OBJECT
-    
+
 public:
     XineVideoWidget ( QWidget* parent,  const char* name );
     ~XineVideoWidget ( );
     QImage *logo ( ) const;
     void setLogo ( QImage *image );
     void setVideoFrame ( uchar *image, int width, int height, int linestep );
     void clear ( );
 
     QSize videoSize() const;
 
 protected:
-    void paintEvent( QPaintEvent *p );
-    void resizeEvent ( QResizeEvent *r );
+    void paintEvent2( QPaintEvent *p );
+    virtual void paintEvent(QPaintEvent*);
+    virtual void resizeEvent ( QResizeEvent *r );
 
     void mouseReleaseEvent ( QMouseEvent *e );
 
 signals:
     void clicked ( );
     void videoResized ( const QSize &s );
 
 private:
     QRect   m_lastframe;
     QRect   m_thisframe;
 
     uchar  *m_buff;
     int     m_bytes_per_line_fb;
     int     m_bytes_per_line_frame;
     int     m_bytes_per_pixel;
+    int     m_lastsize;
     QImage *m_logo;
     mutable int     m_rotation;
+    ThreadUtil::Mutex m_bufmutex;
 };