Preliminary work for better audio visualization handling

modules/gui/qt4/components/video_widget.cpp

@@ -26,6 +26,7 @@
 #include "qt4.hpp"
 #include "components/video_widget.hpp"
 #include "main_interface.hpp"
+#include "input_manager.hpp"
 #include <QHBoxLayout>
 
 #define ICON_SIZE 128
@@ -57,6 +58,10 @@ VideoWidget::VideoWidget( intf_thread_t *_p_i, bool _always ) : QFrame( NULL ),
     if( always )
     {
        DrawBackground();
+       connect( THEMIM->getIM(), SIGNAL( audioStarted() ),
+                this, SLOT( hasAudio() ) );
+       connect( THEMIM->getIM(), SIGNAL( audioStarted() ),
+                this, SLOT( hasVideo() ) );
     }
     need_update = false;
 }
@@ -117,6 +122,19 @@ void *VideoWidget::Request( vout_thread_t *p_nvout, int *pi_x, int *pi_y,
     }
     p_vout = p_nvout;
 
+    // if( THEMIM->getIM()->b_has_video )
+    // {
+    //      We are really running a video
+    //      Close the existing vout
+    //      Set visual to disabled
+    // }
+    // else
+    // {
+    //      We are getting a request for visual
+    //      Just go on.
+    // }
+    // Check THEMIM->b_has_audio. If true, hide audio.
+
     setMinimumSize( 1,1 );
     p_intf->p_sys->p_mi->videoSize = QSize( *pi_width, *pi_height );
     updateGeometry();
@@ -149,6 +167,25 @@ void VideoWidget::Release( void *p_win )
     }
 }
 
+void VideoWidget::hasAudio()
+{
+    /* We have video already, do nothing */
+    if( THEMIM->getIM()->b_has_video )
+    {
+
+    }
+    else
+    {
+        /* Show the panel to the user */
+        fprintf( stderr, "Showing panel\n" );
+    }
+}
+
+void VideoWidget::hasVideo()
+{
+    // if panel is shown, hide it
+}
+
 static int DoControl( intf_thread_t *p_intf, void *p_win, int i_q, va_list a )
 {
     return p_intf->p_sys->p_video->Control( p_win, i_q, a );

modules/gui/qt4/components/video_widget.hpp

@@ -64,6 +64,8 @@ private:
     vlc_mutex_t lock;
 private slots:
     void update();
+    void hasAudio();
+    void hasVideo();
 };
 
 #endif

modules/gui/qt4/input_manager.cpp

@@ -27,6 +27,11 @@
 #include "dialogs_provider.hpp"
 #include "qt4.hpp"
 
+static int ChangeVideo( vlc_object_t *p_this, const char *var, vlc_value_t o,
+                        vlc_value_t n, void *param );
+static int ChangeAudio( vlc_object_t *p_this, const char *var, vlc_value_t o,
+                        vlc_value_t n, void *param );
+
 /**********************************************************************
  * InputManager implementation
  **********************************************************************/
@@ -48,6 +53,21 @@ void InputManager::setInput( input_thread_t *_p_input )
 {
     p_input = _p_input;
     emit positionUpdated( 0.0,0,0 );
+    b_had_audio = b_had_video = b_has_audio = b_has_video = false;
+    if( p_input )
+    {
+        var_AddCallback( p_input, "audio-es", ChangeAudio, this );
+        var_AddCallback( p_input, "video-es", ChangeVideo, this );
+    }
+
+}
+void InputManager::delInput()
+{
+    if( p_input )
+    {
+        var_DelCallback( p_input, "audio-es", ChangeAudio, this );
+        var_DelCallback( p_input, "video-es", ChangeVideo, this );
+    }
 }
 
 void InputManager::update()
@@ -62,6 +82,11 @@ void InputManager::update()
         emit statusChanged( 0 ); // 0 = STOPPED, 1 = PLAY, 2 = PAUSE
     }
 
+    if( !b_had_audio && b_has_audio )
+        emit audioStarted();
+    if( !b_had_video && b_has_video )
+        emit videoStarted();
+
     /* Update position */
     mtime_t i_length, i_time;
     float f_pos;
@@ -78,7 +103,7 @@ void InputManager::update()
         vlc_value_t val;
         var_Change( p_input, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
         if( val.i_int > 0 )
-        emit navigationChanged( 1 ); // 1 = chapter, 2 = title, 3 = NO
+            emit navigationChanged( 1 ); // 1 = chapter, 2 = title, 0 = NO
         else
             emit navigationChanged( 2 );
     }
@@ -167,6 +192,7 @@ void MainInputManager::updateInput()
     if( p_input && p_input->b_dead )
     {
         vlc_object_release( p_input );
+        getIM()->delInput();
         p_input = NULL;
         emit inputChanged( NULL );
     }
@@ -198,3 +224,17 @@ void MainInputManager::togglePlayPause()
     }
     getIM()->togglePlayPause();
 }
+
+
+static int ChangeAudio( vlc_object_t *p_this, const char *var, vlc_value_t o,
+                        vlc_value_t n, void *param )
+{
+    InputManager *im = (InputManager*)param;
+    im->b_has_audio = true;
+}
+static int ChangeVideo( vlc_object_t *p_this, const char *var, vlc_value_t o,
+                        vlc_value_t n, void *param )
+{
+    InputManager *im = (InputManager*)param;
+    im->b_has_video = true;
+}

modules/gui/qt4/input_manager.hpp

@@ -34,6 +34,8 @@ public:
     InputManager( QObject *, intf_thread_t *);
     virtual ~InputManager();
 
+    void delInput();
+    bool b_has_audio, b_has_video, b_had_audio, b_had_video;
 private:
     intf_thread_t *p_intf;
     input_thread_t *p_input;
@@ -50,6 +52,8 @@ signals:
     void nameChanged( QString );
     void navigationChanged( int );
     void statusChanged( int );
+    void audioStarted();
+    void videoStarted();
 };
 
 class MainInputManager : public QObject