Merge lp:~ywwg/mixxx/features_xwax2 into lp:~mixxxdevelopers/mixxx/trunk

[Owen Williams]

I've continued working in features_xwax2 to make some fixes and updates to the vinyl control code. It would be nice if some of these fixes could go into trunk, other new features can probably wait if it breaks freeze too badly.

New Features:
* Show signal quality inside WSpinny
* More pleasant waveform stretching

Fixes:
* fix vinylsoundemu and take equivalent code out of EBSL
* when loading a track, update track duration with correct value
* keep vinyl control enabled when changing vinyl control preferences
* Absolute mode fixes (better for scratching)

[William Good (bkgood)]

Changes in trunk won't go out until after 1.10, should this be retargeted at
LP:mixxx/1.10?
Bill

On Jul 30, 2011 3:21 PM, "Owen Williams" <email address hidden> wrote:
>
> Owen Williams has proposed merging lp:~ywwg/mixxx/features_xwax2 into
lp:mixxx.
>
> Requested reviews:
> RJ Ryan (rryan)
> Related bugs:
> Bug #528113 in Mixxx: "Vinyl control signal quality doesn't refresh"
> https://bugs.launchpad.net/mixxx/+bug/528113
> Bug #624925 in Mixxx: "Mixxx should switch to relative mode if looping is
enabled in absolute mode"
> https://bugs.launchpad.net/mixxx/+bug/624925
> Bug #624931 in Mixxx: "Scale BPM display does not work for vinyl control
in Mixxx 1.8 and below"
> https://bugs.launchpad.net/mixxx/+bug/624931
> Bug #669289 in Mixxx: "Enable needle cueing in relative mode"
> https://bugs.launchpad.net/mixxx/+bug/669289
> Bug #672758 in Mixxx: "Support 45 rpm vinyl mode"
> https://bugs.launchpad.net/mixxx/+bug/672758
>
> For more details, see:
> https://code.launchpad.net/~ywwg/mixxx/features_xwax2/+merge/69904
>
> I've continued working in features_xwax2 to make some fixes and updates to
the vinyl control code. It would be nice if some of these fixes could go
into trunk, other new features can probably wait if it breaks freeze too
badly.
>
> New Features:
> * Show signal quality inside WSpinny
> * More pleasant waveform stretching
>
> Fixes:
> * fix vinylsoundemu and take equivalent code out of EBSL
> * when loading a track, update track duration with correct value
> * keep vinyl control enabled when changing vinyl control preferences
> * Absolute mode fixes (better for scratching)
> --
> https://code.launchpad.net/~ywwg/mixxx/features_xwax2/+merge/69904
> Your team Mixxx Development Team is subscribed to branch lp:mixxx.
>
> === modified file 'mixxx/lib/xwax/timecoder.c'
> --- mixxx/lib/xwax/timecoder.c 2011-05-25 19:52:14 +0000
> +++ mixxx/lib/xwax/timecoder.c 2011-07-30 20:21:03 +0000
> @@ -519,7 +519,7 @@
>
> if (r >= 0) {
> //normalize position to milliseconds, not timecode steps --
Owen
> - r = r * 1000 / (tc->def->resolution * tc->speed);
> + r = (float)r * (1000.0 / (tc->def->resolution *
tc->speed));
> if (when)
> *when = tc->timecode_ticker * tc->dt;
> return r;
>
> === modified file 'mixxx/lib/xwax/timecoder_win32.cpp'
> --- mixxx/lib/xwax/timecoder_win32.cpp 2011-05-25 19:52:14 +0000
> +++ mixxx/lib/xwax/timecoder_win32.cpp 2011-07-30 20:21:03 +0000
> @@ -521,7 +521,7 @@
>
> if (r >= 0) {
> //normalize position to milliseconds, not timecode steps --
Owen
> - r = r * 1000 / (tc->def->resolution * tc->speed);
> + r = (float)r * (1000.0 / (tc->def->resolution *
tc->speed));
> if (when)
> *when = tc->timecode_ticker * tc->dt;
> return r;
>
> === modified file 'mixxx/src/dlgprefnovinyldlg.ui'
> --- mixxx/src/dlgprefnovinyldlg.ui 2011-05-26 10:22:03 +0000
> +++ mixxx/src/dlgprefnovinyldlg.ui 2011-07-30 20:21:03 +0000
> @@ -9,8 +9,13 @@
> <rect>
> <x>0</x>
> <y>0</y>
> +<<<<<<< TREE
> <width>461</width>
> <height...

[Owen Williams (ywwg)]

Right, 1.10. I've resubmitted the proposal with my intended target

[RJ Skerry-Ryan (rryan)]

Have the two branches diverged yet? Anyway i'll take a look. thanks owen!

On Sun, Jul 31, 2011 at 8:15 AM, Owen Williams <email address hidden> wrote:

> Right, 1.10. I've resubmitted the proposal with my intended target
> --
> https://code.launchpad.net/~ywwg/mixxx/features_xwax2/+merge/69904
> You are requested to review the proposed merge of
> lp:~ywwg/mixxx/features_xwax2 into lp:mixxx.
>

[lp:~ywwg/mixxx/features_xwax2]

2664. By Owen Williams on 2011-07-31

Merge from lp:mixxx

2665. By Owen Williams on 2011-09-16

Calculate fabs value once, not three times

2666. By Owen Williams on 2011-09-17

Replace explicit number with #defined value

2667. By Owen Williams on 2011-09-17

Optimizing vinyl sound emu:
* precompute random values for dithering
* don't repeatedly calculate absolute value

2668. By Owen Williams on 2011-09-17

Also randomize position in noise buffer so right and left aren't aligned

2669. By Owen Williams on 2011-09-17

Always record pitch for steadypitch, not just when we have position

2670. By Owen Williams on 2011-09-17

Retweak pitch smoothing tweak. Make sure spurious values aren't in the ringbuffer

2671. By Owen Williams on 2011-09-25

Don't use static variables

2672. By Owen Williams on 2011-09-26

Merge from lp:mixxx

2673. By Owen Williams on 2011-09-28

include genre in search results

2674. By Owen Williams on 2011-09-28

merge from lp:mixxx

2675. By Owen Williams on 2011-09-30

Abstractify vinyl proxies more

2676. By Owen Williams on 2011-10-01

Don't change metadata-reported duration

2677. By Owen Williams on 2011-10-01

merge from lp:mixxx

2678. By Owen Williams on 2011-10-03

Merge with lp:mixxx

2679. By Owen Williams on 2011-10-04

merge from lp:mixxx

2680. By Owen Williams on 2011-10-04

merged into trunk

2681. By Owen Williams on 2012-04-02

merge from lp:mixxx

2682. By Owen Williams on 2012-04-02

If rate is exactly 1.0, don't scale audio at all

2683. By Owen Williams on 2012-04-02

Since my wave writer code is so useful, make it something I can #define to enable

2684. By Owen Williams on 2012-04-02

Create vinylcontrol_scratching CO that is 1 when pitch is changing rapidly and 0 when not.
Use new vinylcontrol_scatching CO to trigger swap between keylock and linear scaling in engine.

2685. By Owen Williams on 2012-04-02

Vinyl Control bugfixes:
  * fix steady pitch detector to work in reverse and better detect loops
  * try not to enter track selection mode when scratching

2686. By Owen Williams on 2012-04-02

typo

Unmerged revisions

=== modified file 'mixxx/lib/xwax/timecoder.c'
--- mixxx/lib/xwax/timecoder.c	2011-05-25 19:52:14 +0000
+++ mixxx/lib/xwax/timecoder.c	2011-07-30 20:21:03 +0000
@@ -519,7 +519,7 @@
 
         if (r >= 0) {
         	//normalize position to milliseconds, not timecode steps -- Owen
-        	r = r * 1000 / (tc->def->resolution * tc->speed);
+        	r = (float)r * (1000.0 / (tc->def->resolution * tc->speed));
             if (when)
                 *when = tc->timecode_ticker * tc->dt;
             return r;
 
=== modified file 'mixxx/lib/xwax/timecoder_win32.cpp'
--- mixxx/lib/xwax/timecoder_win32.cpp	2011-05-25 19:52:14 +0000
+++ mixxx/lib/xwax/timecoder_win32.cpp	2011-07-30 20:21:03 +0000
@@ -521,7 +521,7 @@
 
         if (r >= 0) {
         	//normalize position to milliseconds, not timecode steps -- Owen
-        	r = r * 1000 / (tc->def->resolution * tc->speed);
+        	r = (float)r * (1000.0 / (tc->def->resolution * tc->speed));
             if (when)
                 *when = tc->timecode_ticker * tc->dt;
             return r;
 
=== modified file 'mixxx/src/dlgprefnovinyldlg.ui'
--- mixxx/src/dlgprefnovinyldlg.ui	2011-05-26 10:22:03 +0000
+++ mixxx/src/dlgprefnovinyldlg.ui	2011-07-30 20:21:03 +0000
@@ -9,8 +9,13 @@
    <rect>
     <x>0</x>
     <y>0</y>
+<<<<<<< TREE
     <width>461</width>
     <height>527</height>
+=======
+    <width>504</width>
+    <height>501</height>
+>>>>>>> MERGE-SOURCE
    </rect>
   </property>
   <property name="windowTitle">
@@ -317,6 +322,13 @@
         </property>
        </spacer>
       </item>
+      <item row="3" column="0" colspan="3">
+       <widget class="QCheckBox" name="SignalQualityEnable">
+        <property name="text">
+         <string>Show Signal Quality in Skin</string>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>
@@ -406,9 +418,26 @@
         </property>
        </spacer>
       </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="toolTip">
+         <string>http://www.xwax.co.uk</string>
+        </property>
+        <property name="text">
+         <string>Powered by xwax</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignBottom|Qt::AlignLeading|Qt::AlignLeft</set>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>
+<<<<<<< TREE
    <item row="6" column="0" colspan="2">
     <widget class="QLabel" name="label_3">
      <property name="text">
@@ -458,6 +487,9 @@
     </widget>
    </item>
    <item row="6" column="2" rowspan="2">
+=======
+   <item row="6" column="2">
+>>>>>>> MERGE-SOURCE
     <spacer name="verticalSpacer">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
@@ -470,6 +502,41 @@
      </property>
     </spacer>
    </item>
+<<<<<<< TREE
+=======
+   <item row="5" column="2">
+    <widget class="QPushButton" name="applyButton">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Maximum" vsizetype="Maximum">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>85</width>
+       <height>27</height>
+      </size>
+     </property>
+     <property name="text">
+      <string>Apply</string>
+     </property>
+    </widget>
+   </item>
+   <item row="5" column="0" colspan="2">
+    <widget class="QLabel" name="label_3">
+     <property name="text">
+      <string>&lt;b&gt;This version of Mixxx does not support vinyl control.&lt;/b&gt; &lt;br&gt; Please visit &lt;a href=&quot;http://mixxx.org&quot;&gt;Mixxx.org&lt;/a&gt; for more information.</string>
+     </property>
+     <property name="wordWrap">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+>>>>>>> MERGE-SOURCE
   </layout>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
 
=== modified file 'mixxx/src/dlgprefvinyl.cpp'
--- mixxx/src/dlgprefvinyl.cpp	2011-05-11 04:38:17 +0000
+++ mixxx/src/dlgprefvinyl.cpp	2011-07-30 20:21:03 +0000
@@ -137,6 +137,8 @@
 
     // Honour the Needle Skip Prevention setting.
     NeedleSkipEnable->setChecked( (bool)config->getValueString( ConfigKey("[VinylControl]", "needle_skip_prevention") ).toInt() );
+    
+    SignalQualityEnable->setChecked((bool)config->getValueString(ConfigKey("[VinylControl]", "show_signal_quality") ).toInt() );
 
     //set vinyl control gain
     VinylGain->setValue( config->getValueString(ConfigKey("[VinylControl]","gain")).toInt());
@@ -182,6 +184,7 @@
     m_COMode.slotSet(iMode);
     config->set(ConfigKey("[VinylControl]","mode"), ConfigValue(iMode));
     config->set(ConfigKey("[VinylControl]","needle_skip_prevention" ), ConfigValue( (int)(NeedleSkipEnable->isChecked( )) ) );
+    config->set(ConfigKey("[VinylControl]","show_signal_quality" ), ConfigValue( (int)(SignalQualityEnable->isChecked( )) ) );
 
     m_pVCManager->reloadConfig();
     slotUpdate();
 
=== modified file 'mixxx/src/dlgprefvinyldlg.ui'
--- mixxx/src/dlgprefvinyldlg.ui	2011-05-26 10:22:03 +0000
+++ mixxx/src/dlgprefvinyldlg.ui	2011-07-30 20:21:03 +0000
@@ -308,6 +308,13 @@
         </property>
        </spacer>
       </item>
+      <item row="3" column="0" colspan="3">
+       <widget class="QCheckBox" name="SignalQualityEnable">
+        <property name="text">
+         <string>Show Signal Quality in Skin</string>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>
 
=== modified file 'mixxx/src/engine/enginebuffer.cpp'
--- mixxx/src/engine/enginebuffer.cpp	2011-05-01 19:10:21 +0000
+++ mixxx/src/engine/enginebuffer.cpp	2011-07-30 20:21:03 +0000
@@ -336,6 +336,9 @@
     m_pTrackSampleRate->set(iTrackSampleRate);
     slotControlSeek(0.);
 
+    //fix the duration
+    pTrack->setDuration(iTrackNumSamples / (2 * iTrackSampleRate));
+    
 
     // Let the engine know that a track is loaded now.
     m_pTrackEndCOT->slotSet(0.0f); //XXX: Not sure if to use the COT or CO here
 
=== modified file 'mixxx/src/engine/enginebufferscalelinear.cpp'
--- mixxx/src/engine/enginebufferscalelinear.cpp	2011-04-16 20:51:48 +0000
+++ mixxx/src/engine/enginebufferscalelinear.cpp	2011-07-30 20:21:03 +0000
@@ -326,16 +326,6 @@
         //at extremely low speeds, dampen the gain to hide pops and clicks
         //this does cause odd-looking linear waveforms that go to zero and back
 
-        //although enginevinylsoundemu does this, it works much better here
-        //because the gain ramps as the rate does
-        if (fabs(rate_add) < 0.5) {
-           float dither = (float)(rand() % 32768) / 32768 - 0.5; // dither
-           //float dither = 0;
-           float gainfrac = fabs(rate_add) / 0.5;
-           buf[i] = gainfrac * (float)buf[i] + dither;
-           buf[i+1] = gainfrac * (float)buf[i+1] + dither;
-        }
-
         /*writer << QString("%1,%2,%3,%4\n").arg(buffer_count)
                                          .arg(buffer[i])
                                            .arg(prev_sample[0])
 
=== modified file 'mixxx/src/engine/enginedeck.cpp'
--- mixxx/src/engine/enginedeck.cpp	2011-04-15 22:19:45 +0000
+++ mixxx/src/engine/enginedeck.cpp	2011-07-30 20:21:03 +0000
@@ -54,8 +54,7 @@
     // Process the raw audio
     m_pBuffer->process(0, pOut, iBufferSize);
     // Emulate vinyl sounds
-    // This causes popping, disable -Owen
-    //m_pVinylSoundEmu->process(pOut, pOut, iBufferSize);
+    m_pVinylSoundEmu->process(pOut, pOut, iBufferSize);
     // Apply pregain
     m_pPregain->process(pOut, pOut, iBufferSize);
     // Filter the channel with EQs
 
=== modified file 'mixxx/src/engine/enginevinylsoundemu.cpp'
--- mixxx/src/engine/enginevinylsoundemu.cpp	2010-09-17 04:15:33 +0000
+++ mixxx/src/engine/enginevinylsoundemu.cpp	2011-07-30 20:21:03 +0000
@@ -23,7 +23,7 @@
 
 /** This class emulates the response of a vinyl record's audio to changes
  *   in speed. In practice, it quiets the audio during very slow playback.
- *   This also helps mask the aliasing due to interpolation that occurs at
+ *   Dithering also helps mask the aliasing due to interpolation that occurs at
  *   these slow speeds.
  */
 
@@ -31,7 +31,7 @@
 {
     m_pConfig = pConfig;
     m_pRateEngine = ControlObject::getControl(ConfigKey(group, "rateEngine"));
-    m_fAbsSpeed = 0.0f;
+    m_fSpeed = m_fOldSpeed = 0.0f;
     m_fGainFactor = 1.0f;
 }
 
@@ -43,30 +43,34 @@
 void EngineVinylSoundEmu::process(const CSAMPLE * pIn, const CSAMPLE * pOut, const int iBufferSize)
 {
     CSAMPLE * pOutput = (CSAMPLE *)pOut;
-    m_fAbsSpeed = fabs((float)m_pRateEngine->get());
-    //qDebug() << m_pRateEngine->get();
+    m_fSpeed = (float)m_pRateEngine->get();
+    float rateFrac = 2 * (m_fSpeed - m_fOldSpeed) / (float)iBufferSize;
+    float curRate = m_fOldSpeed;
     
     const float thresholdSpeed = 0.070f; //Scale volume if playback speed is below 7%.
-    if (m_fAbsSpeed < thresholdSpeed && m_fAbsSpeed > 0.0f) //Change the volume based on the playback speed.
-    {
-        //The numbers in this formula are important:
-        //  - The "1 + ..." makes the minimum value of the parameter of log10
-        //    be 1, which makes the gain 0.
-        //  - The "* 9" makes the maximum value of the log10 become 10 (9 + 1 = 10)
-        //    which gives a gain of 1
-        //m_fGainFactor = log10(1 + m_fAbsSpeed/0.50f * 9);
-        m_fGainFactor = m_fAbsSpeed/thresholdSpeed;
-        //qDebug() << m_fGainFactor << m_fAbsSpeed;
-    }
-    else if (m_fAbsSpeed == 0.0f)
-        m_fGainFactor = 0.0f; //Log blows up at 0 :)
-    else 
-    {
-        m_fGainFactor = 1.0f;
-    }
-
-    // Apply whatever gain we calculated. SampleUtil takes care of aliased
-    // buffers and gains of 1 or 0.
-    SampleUtil::copyWithGain(pOutput, pIn, m_fGainFactor, iBufferSize);
+    const float ditherSpeed = 0.85f; //Dither if playback speed is below 85%.
+    
+    //iterate over old rate to new rate to prevent audible pops    
+    for (int i=0; i<iBufferSize; i+=2)
+    {
+        float dither = 0;
+        if (fabs(curRate) < ditherSpeed) {
+            dither = (float)(rand() % 32768) / 32768 - 0.5;
+        }
+        
+        if (fabs(curRate) < thresholdSpeed) {
+            float gainfrac = fabs(curRate) / thresholdSpeed;
+            pOutput[i] = gainfrac * (float)pIn[i] + dither;
+            pOutput[i+1] = gainfrac * (float)pIn[i+1] + dither;
+        }
+        else
+        {
+           pOutput[i] = pIn[i] + dither;
+           pOutput[i+1] = pIn[i+1] + dither;
+        }
+        
+        curRate += rateFrac;
+    }
+    m_fOldSpeed = m_fSpeed;
 }
 
 
=== modified file 'mixxx/src/engine/enginevinylsoundemu.h'
--- mixxx/src/engine/enginevinylsoundemu.h	2009-01-24 04:39:32 +0000
+++ mixxx/src/engine/enginevinylsoundemu.h	2011-07-30 20:21:03 +0000
@@ -28,7 +28,7 @@
 private:
     ConfigObject<ConfigValue> *m_pConfig;
     ControlObject *m_pRateEngine;
-    float m_fAbsSpeed;
+    float m_fSpeed, m_fOldSpeed;
     float m_fGainFactor;
 };
 
 
=== modified file 'mixxx/src/engine/vinylcontrolcontrol.cpp'
--- mixxx/src/engine/vinylcontrolcontrol.cpp	2011-05-11 04:38:17 +0000
+++ mixxx/src/engine/vinylcontrolcontrol.cpp	2011-07-30 20:21:03 +0000
@@ -27,12 +27,18 @@
     m_pControlVinylEnabled = new ControlPushButton(ConfigKey(pGroup, "vinylcontrol_enabled"));
     m_pControlVinylEnabled->set(0);
     m_pControlVinylEnabled->setToggleButton(true);
+    m_pControlVinylWantEnabled = new ControlPushButton(ConfigKey(pGroup, "vinylcontrol_wantenabled"));
+    m_pControlVinylWantEnabled->set(0);
+    m_pControlVinylWantEnabled->setToggleButton(true);
     m_pControlVinylMode = new ControlPushButton(ConfigKey(pGroup, "vinylcontrol_mode"));
     m_pControlVinylMode->setStates(3);
     m_pControlVinylMode->setToggleButton(true);
     m_pControlVinylCueing = new ControlPushButton(ConfigKey(pGroup, "vinylcontrol_cueing"));
     m_pControlVinylCueing->setStates(3);
     m_pControlVinylCueing->setToggleButton(true);
+    m_pControlVinylSignalEnabled = new ControlPushButton(ConfigKey(pGroup, "vinylcontrol_signal_enabled"));
+    m_pControlVinylSignalEnabled->set(1);
+    m_pControlVinylSignalEnabled->setToggleButton(true);
 }
 
 VinylControlControl::~VinylControlControl() {
 
=== modified file 'mixxx/src/engine/vinylcontrolcontrol.h'
--- mixxx/src/engine/vinylcontrolcontrol.h	2011-05-11 04:38:17 +0000
+++ mixxx/src/engine/vinylcontrolcontrol.h	2011-07-30 20:21:03 +0000
@@ -25,7 +25,9 @@
     ControlObject* m_pControlVinylStatus;
     ControlPushButton* m_pControlVinylMode;
     ControlPushButton* m_pControlVinylEnabled;
+    ControlPushButton* m_pControlVinylWantEnabled;
     ControlPushButton* m_pControlVinylCueing;
+    ControlPushButton* m_pControlVinylSignalEnabled;
     TrackPointer m_pCurrentTrack;
 };
 
 
=== modified file 'mixxx/src/mixxx.cpp'
--- mixxx/src/mixxx.cpp	2011-05-06 09:45:12 +0000
+++ mixxx/src/mixxx.cpp	2011-07-30 20:21:03 +0000
@@ -481,7 +481,8 @@
     if (!(m_pWidgetParent = m_pSkinLoader->loadDefaultSkin(m_pView,
                                         m_pKeyboard,
                                         m_pPlayerManager,
-                                        m_pLibrary))) {
+                                        m_pLibrary,
+                                        m_pVCManager))) {
         qDebug() << "Could not load default skin.";
     }
 
@@ -875,9 +876,6 @@
     // Either check or uncheck the vinyl control menu item depending on what
     // it was saved as.
     m_pOptionsVinylControl->setCheckable(true);
-    //make sure control is off on startup (this is redundant to vinylcontrolmanager.cpp)
-    m_pConfig->set(
-            ConfigKey("[VinylControl]", "enabled_ch1"), false);
     m_pOptionsVinylControl->setChecked(false);
     m_pOptionsVinylControl->setStatusTip(tr("Activate Vinyl Control"));
     m_pOptionsVinylControl->setWhatsThis(
@@ -891,8 +889,6 @@
         SLOT(slotControlVinylControl(double)));
 
     m_pOptionsVinylControl2->setCheckable(true);
-    m_pConfig->set(
-            ConfigKey("[VinylControl]", "enabled_ch2"), false);
     m_pOptionsVinylControl2->setChecked(false);
     m_pOptionsVinylControl2->setStatusTip(tr("Activate Vinyl Control"));
     m_pOptionsVinylControl2->setWhatsThis(
@@ -1162,15 +1158,9 @@
 {
 #ifdef __VINYLCONTROL__
     if (m_pVCManager->vinylInputEnabled(1)) {
-        m_pConfig->set(
-            ConfigKey("[VinylControl]", "enabled_ch1"), ConfigValue((int)toggle));
         m_pOptionsVinylControl->setChecked((bool)toggle);
-        if (toggle) {
-            ControlObject::getControl(ConfigKey("[Channel1]", "vinylcontrol_status"))->set(VINYL_STATUS_OK);
-        } else {
-            ControlObject::getControl(ConfigKey("[Channel1]", "vinylcontrol_status"))->set(VINYL_STATUS_DISABLED);
-        }
     } else {
+        m_pOptionsVinylControl->setChecked(false);
         if (toggle) {
             QMessageBox::warning(this, tr("Mixxx"),
                 tr("No input device(s) select.\nPlease select your soundcard(s) "
@@ -1179,8 +1169,6 @@
                 QMessageBox::Ok);
             m_pPrefDlg->show();
             m_pPrefDlg->showSoundHardwarePage();
-            m_pOptionsVinylControl->setChecked(false);
-            m_pConfig->set(ConfigKey("[VinylControl]","enabled_ch1"), ConfigValue(0));
             ControlObject::getControl(ConfigKey("[Channel1]", "vinylcontrol_status"))->set(VINYL_STATUS_DISABLED);
             ControlObject::getControl(ConfigKey("[Channel1]", "vinylcontrol_enabled"))->set(0);
         }
@@ -1191,27 +1179,17 @@
 void MixxxApp::slotCheckboxVinylControl(bool toggle)
 {
 #ifdef __VINYLCONTROL__
-    bool current = (bool)m_pConfig->getValueString(ConfigKey("[VinylControl]","enabled_ch1")).toInt();
-    if (current != toggle) {
-        ControlObject::getControl(ConfigKey("[Channel1]", "vinylcontrol_enabled"))->set((double)toggle);
-    }
+    ControlObject::getControl(ConfigKey("[Channel1]", "vinylcontrol_enabled"))->set((double)toggle);
 #endif
 }
 
 void MixxxApp::slotControlVinylControl2(double toggle)
 {
 #ifdef __VINYLCONTROL__
-    //we just need at least 1 input (deck 1) because of single deck mode
     if (m_pVCManager->vinylInputEnabled(2)) {
-        m_pConfig->set(
-            ConfigKey("[VinylControl]", "enabled_ch2"), ConfigValue((int)toggle));
-           m_pOptionsVinylControl2->setChecked((bool)toggle);
-       if (toggle) {
-           ControlObject::getControl(ConfigKey("[Channel2]", "vinylcontrol_status"))->set(VINYL_STATUS_OK);
-       } else {
-           ControlObject::getControl(ConfigKey("[Channel2]", "vinylcontrol_status"))->set(VINYL_STATUS_DISABLED);
-       }
+        m_pOptionsVinylControl2->setChecked((bool)toggle);
     } else {
+        m_pOptionsVinylControl2->setChecked(false);
         if (toggle) {
             QMessageBox::warning(this, tr("Mixxx"),
                 tr("No input device(s) select.\nPlease select your soundcard(s) "
@@ -1220,8 +1198,6 @@
                 QMessageBox::Ok);
             m_pPrefDlg->show();
             m_pPrefDlg->showSoundHardwarePage();
-            m_pOptionsVinylControl2->setChecked(false);
-            m_pConfig->set(ConfigKey("[VinylControl]","enabled_ch2"), ConfigValue(0));
             ControlObject::getControl(ConfigKey("[Channel2]", "vinylcontrol_status"))->set(VINYL_STATUS_DISABLED);
             ControlObject::getControl(ConfigKey("[Channel2]", "vinylcontrol_enabled"))->set(0);
         }
@@ -1232,10 +1208,7 @@
 void MixxxApp::slotCheckboxVinylControl2(bool toggle)
 {
 #ifdef __VINYLCONTROL__
-    bool current = (bool)m_pConfig->getValueString(ConfigKey("[VinylControl]","enabled_ch2")).toInt();
-    if (current != toggle) {
-        ControlObject::getControl(ConfigKey("[Channel2]", "vinylcontrol_enabled"))->set((double)toggle);
-    }
+    ControlObject::getControl(ConfigKey("[Channel2]", "vinylcontrol_enabled"))->set((double)toggle);
 #endif
 }
 
@@ -1428,7 +1401,8 @@
     if (!(m_pWidgetParent = m_pSkinLoader->loadDefaultSkin(m_pView,
                                         m_pKeyboard,
                                         m_pPlayerManager,
-                                        m_pLibrary))) {
+                                        m_pLibrary,
+                                        m_pVCManager))) {
         qDebug() << "Could not reload the skin.";
     }
 
 
=== modified file 'mixxx/src/skin/legacyskinparser.cpp'
--- mixxx/src/skin/legacyskinparser.cpp	2011-05-05 21:29:33 +0000
+++ mixxx/src/skin/legacyskinparser.cpp	2011-07-30 20:21:03 +0000
@@ -58,11 +58,13 @@
 LegacySkinParser::LegacySkinParser(ConfigObject<ConfigValue>* pConfig,
                                    MixxxKeyboard* pKeyboard,
                                    PlayerManager* pPlayerManager,
-                                   Library* pLibrary)
+                                   Library* pLibrary,
+                                   VinylControlManager* pVCMan)
         : m_pConfig(pConfig),
           m_pKeyboard(pKeyboard),
           m_pPlayerManager(pPlayerManager),
           m_pLibrary(pLibrary),
+          m_pVCManager(pVCMan),
           m_pParent(NULL) {
 
 }
@@ -611,7 +613,7 @@
 QWidget* LegacySkinParser::parseSpinny(QDomElement node) {
     QString channelStr = lookupNodeGroup(node);
     const char* pSafeChannelStr = safeChannelString(channelStr);
-    WSpinny* p = new WSpinny(m_pParent);
+    WSpinny* p = new WSpinny(m_pParent, m_pVCManager);
     setupWidget(node, p);
 
     connect(p, SIGNAL(trackDropped(QString, QString)),
 
=== modified file 'mixxx/src/skin/legacyskinparser.h'
--- mixxx/src/skin/legacyskinparser.h	2011-04-29 03:18:02 +0000
+++ mixxx/src/skin/legacyskinparser.h	2011-07-30 20:21:03 +0000
@@ -9,6 +9,7 @@
 
 #include "configobject.h"
 #include "skin/skinparser.h"
+#include "vinylcontrol/vinylcontrolmanager.h"
 
 class Library;
 class MixxxKeyboard;
@@ -20,7 +21,7 @@
   public:
     LegacySkinParser(ConfigObject<ConfigValue>* pConfig,
                      MixxxKeyboard* pKeyboard, PlayerManager* pPlayerManager,
-                     Library* pLibrary);
+                     Library* pLibrary, VinylControlManager* pVCMan);
     virtual ~LegacySkinParser();
 
     virtual bool canParse(QString skinPath);
@@ -73,6 +74,7 @@
     MixxxKeyboard* m_pKeyboard;
     PlayerManager* m_pPlayerManager;
     Library* m_pLibrary;
+    VinylControlManager* m_pVCManager;
     QWidget *m_pParent;
     static QList<const char*> s_channelStrs;
     static QMutex s_safeStringMutex;
 
=== modified file 'mixxx/src/skin/skinloader.cpp'
--- mixxx/src/skin/skinloader.cpp	2011-01-07 22:31:50 +0000
+++ mixxx/src/skin/skinloader.cpp	2011-07-30 20:21:03 +0000
@@ -5,6 +5,7 @@
 #include <QDir>
 #include <QtDebug>
 
+#include "vinylcontrol/vinylcontrolmanager.h"
 #include "skin/skinloader.h"
 #include "skin/legacyskinparser.h"
 
@@ -52,10 +53,11 @@
 QWidget* SkinLoader::loadDefaultSkin(QWidget* pParent,
                                        MixxxKeyboard* pKeyboard,
                                        PlayerManager* pPlayerManager,
-                                       Library* pLibrary) {
+                                       Library* pLibrary,
+                                       VinylControlManager* pVCMan) {
     QString skinPath = getConfiguredSkinPath();
 
-    LegacySkinParser legacy(m_pConfig, pKeyboard, pPlayerManager, pLibrary);
+    LegacySkinParser legacy(m_pConfig, pKeyboard, pPlayerManager, pLibrary, pVCMan);
     qDebug() << "Legacy can parse:" << legacy.canParse(skinPath);
     return legacy.parseSkin(skinPath, pParent);
 }
 
=== modified file 'mixxx/src/skin/skinloader.h'
--- mixxx/src/skin/skinloader.h	2011-01-06 19:05:52 +0000
+++ mixxx/src/skin/skinloader.h	2011-07-30 20:21:03 +0000
@@ -17,7 +17,8 @@
     QWidget* loadDefaultSkin(QWidget* pParent,
                                MixxxKeyboard* pKeyboard,
                                PlayerManager* pPlayerManager,
-                               Library* pLibrary);
+                               Library* pLibrary,
+                               VinylControlManager* pVCMan);
 
     QString getConfiguredSkinPath();
 
 
=== modified file 'mixxx/src/soundmanager.cpp'
--- mixxx/src/soundmanager.cpp	2011-07-19 18:12:33 +0000
+++ mixxx/src/soundmanager.cpp	2011-07-30 20:21:03 +0000
@@ -26,6 +26,7 @@
 #include "sounddevice.h"
 #include "sounddeviceportaudio.h"
 #include "engine/enginemaster.h"
+#include "engine/enginebuffer.h"
 #include "controlobjectthreadmain.h"
 #include "soundmanagerutil.h"
 #include "controlobject.h"
 
=== modified file 'mixxx/src/vinylcontrol/vinylcontrol.cpp'
--- mixxx/src/vinylcontrol/vinylcontrol.cpp	2011-04-29 16:57:44 +0000
+++ mixxx/src/vinylcontrol/vinylcontrol.cpp	2011-07-30 20:21:03 +0000
@@ -11,6 +11,8 @@
 
     // Get Control objects
     playPos             = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "playposition")));    //Range: -.14 to 1.14
+    trackSamples        = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "track_samples")));
+    trackSampleRate     = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "track_samplerate")));
     vinylSeek           = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "vinylcontrol_seek")));
     controlScratch      = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "scratch2")));
     rateSlider          = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "rate")));    //Range -1.0 to 1.0
@@ -19,11 +21,13 @@
     duration            = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "duration")));
     mode                = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "vinylcontrol_mode")));
     enabled             = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "vinylcontrol_enabled")));
+    wantenabled         = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "vinylcontrol_wantenabled")));
     cueing              = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "vinylcontrol_cueing")));
     rateRange           = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "rateRange")));
     vinylStatus     = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "vinylcontrol_status")));
     rateDir         = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "rate_dir")));
     loopEnabled     = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "loop_enabled")));
+    signalenabled     = new ControlObjectThread(ControlObject::getControl(ConfigKey(group, "vinylcontrol_signal_enabled")));
 
     dVinylPitch = 0.0f;
     dVinylPosition = 0.0f;
@@ -47,8 +51,8 @@
     //Vinyl control mode
     iVCMode = m_pConfig->getValueString(ConfigKey("[VinylControl]","mode")).toInt();
 
-    //Enabled or not
-    bIsEnabled = m_pConfig->getValueString(ConfigKey(group,"vinylcontrol_enabled")).toInt();
+    //Enabled or not -- load from saved value in case vinyl control is restarting 
+    bIsEnabled = wantenabled->get();
 
     //Gain
     ControlObject::getControl(ConfigKey("[VinylControl]", "gain"))->set(
@@ -59,7 +63,9 @@
 {
     bIsEnabled = enable;
     if (m_pConfig)
+    {
         m_pConfig->set(ConfigKey(m_group,"vinylcontrol_enabled"), ConfigValue((int)enable));
+    }
 
     enabled->slotSet(enable);
 
@@ -71,8 +77,15 @@
 
 VinylControl::~VinylControl()
 {
+    bool wasEnabled = bIsEnabled;
     enabled->slotSet(false);
     vinylStatus->slotSet(VINYL_STATUS_DISABLED);
+    if (wasEnabled)
+    {
+        //if vinyl control is just restarting, indicate that it should
+        //be enabled
+        wantenabled->slotSet(true);
+    }
 }
 
 float VinylControl::getSpeed()
 
=== modified file 'mixxx/src/vinylcontrol/vinylcontrol.h'
--- mixxx/src/vinylcontrol/vinylcontrol.h	2011-05-11 04:38:17 +0000
+++ mixxx/src/vinylcontrol/vinylcontrol.h	2011-07-30 20:21:03 +0000
@@ -35,7 +35,7 @@
 
 #define MIXXX_VC_DEFAULT_LEADINTIME 0
 
-#define MIXXX_VINYL_SCOPE_SIZE 128
+#define MIXXX_VINYL_SCOPE_SIZE 100
 
 //TODO: Make this an EngineObject instead one day? (need to route all the input audio through the engine that way too...)
 
@@ -62,6 +62,8 @@
     QString m_group;
     ControlObjectThread *playButton; //The ControlObject used to start/stop playback of the song.
     ControlObjectThread *playPos; //The ControlObject used to read the playback position in the song.
+    ControlObjectThread *trackSamples;
+    ControlObjectThread *trackSampleRate; 
     ControlObjectThread *vinylSeek; //The ControlObject used to change the playback position in the song.
     ControlObjectThread *controlScratch; //The ControlObject used to seek when the record is spinning fast.
     ControlObjectThread *rateSlider; //The ControlObject used to change the speed/pitch of the song.
@@ -69,11 +71,13 @@
     ControlObjectThread *duration; //The ControlObject used to get the duration of the current song.
     ControlObjectThread *mode; //The ControlObject used to get the vinyl control mode (absolute/relative/scratch)
     ControlObjectThread *enabled; //The ControlObject used to get if the vinyl control is enabled or disabled.
+    ControlObjectThread *wantenabled; //The ControlObject used to get if the vinyl control should try to enable itself
     ControlObjectThread *cueing; //Should cueing mode be active?
     ControlObjectThread *rateRange; //The ControlObject used to the get the pitch range from the prefs.
     ControlObjectThread *vinylStatus;
     ControlObjectThread *rateDir; //direction of rate
     ControlObjectThread *loopEnabled; //looping enabled?
+    ControlObjectThread *signalenabled; //show the signal in the skin?
     //ControlObject *vinylStatus;  //Status of vinyl control
 
     int iLeadInTime; //The lead-in time...
@@ -86,6 +90,7 @@
     float fRateRange; //The pitch range setting from Mixxx's preferences
     float m_fTimecodeQuality; //Used as a measure of the quality of the timecode signal.
 
+    float fTrackDuration;
     unsigned long iSampleRate;
     bool bIsEnabled;
     int iRIAACorrection;
 
=== modified file 'mixxx/src/vinylcontrol/vinylcontrolmanager.cpp'
--- mixxx/src/vinylcontrol/vinylcontrolmanager.cpp	2011-07-19 20:54:56 +0000
+++ mixxx/src/vinylcontrol/vinylcontrolmanager.cpp	2011-07-30 20:21:03 +0000
@@ -26,11 +26,9 @@
 {
     // load a bunch of stuff
     ControlObject::getControl(ConfigKey("[Channel1]","vinylcontrol_enabled"))
-        ->queueFromThread(m_pConfig->getValueString(
-                ConfigKey("[VinylControl]","enabled_ch1")).toDouble());
+        ->queueFromThread(0);
     ControlObject::getControl(ConfigKey("[Channel2]","vinylcontrol_enabled"))
-        ->queueFromThread(m_pConfig->getValueString(
-                ConfigKey("[VinylControl]","enabled_ch2")).toDouble());
+        ->queueFromThread(0);
     ControlObject::getControl(ConfigKey("[Channel1]","vinylcontrol_mode"))
         ->queueFromThread(m_pConfig->getValueString(
                 ConfigKey("[VinylControl]","mode")).toDouble());
@@ -62,8 +60,6 @@
 
     // save a bunch of stuff to config
     // turn off vinyl control so it won't be enabled on load (this is redundant to mixxx.cpp)
-    m_pConfig->set(ConfigKey("[VinylControl]","enabled_ch1"), false);
-    m_pConfig->set(ConfigKey("[VinylControl]","enabled_ch2"), false);
     m_pConfig->set(ConfigKey("[Channel 1]","vinylcontrol_enabled"), false);
     m_pConfig->set(ConfigKey("[Channel 2]","vinylcontrol_enabled"), false);
     m_pConfig->set(ConfigKey("[VinylControl]","mode"),
 
=== modified file 'mixxx/src/vinylcontrol/vinylcontrolsignalwidget.cpp'
--- mixxx/src/vinylcontrol/vinylcontrolsignalwidget.cpp	2011-04-17 04:16:00 +0000
+++ mixxx/src/vinylcontrol/vinylcontrolsignalwidget.cpp	2011-07-30 20:21:03 +0000
@@ -31,7 +31,7 @@
     : QWidget(),
       m_iTimerId(0),
       m_pVinylControl(NULL),
-      m_iSize(128),
+      m_iSize(100),
       m_qImage(),
       m_bVinylActive(FALSE) {
 }
 
=== modified file 'mixxx/src/vinylcontrol/vinylcontrolxwax.cpp'
--- mixxx/src/vinylcontrol/vinylcontrolxwax.cpp	2011-05-21 01:07:25 +0000
+++ mixxx/src/vinylcontrol/vinylcontrolxwax.cpp	2011-07-30 20:21:03 +0000
@@ -47,6 +47,7 @@
     iOldMode        = MIXXX_VCMODE_ABSOLUTE;
     dUiUpdateTime   = -1.0f;
     m_bNeedleSkipPrevention = (bool)(m_pConfig->getValueString( ConfigKey( "[VinylControl]", "needle_skip_prevention" ) ).toInt());
+    signalenabled->slotSet(m_pConfig->getValueString( ConfigKey( "[VinylControl]", "show_signal_quality" ) ).toInt());
 
     dLastTrackSelectPos = 0.0;
     dCurTrackSelectPos = 0.0;
@@ -97,6 +98,7 @@
     //Note that timecoder_init will not double-malloc the LUTs, and after this we are guaranteed
     //that the LUT has been generated unless we ran out of memory.
     m_bLUTInitialized = true;
+    m_uiSafeZone = timecoder_get_safe(&timecoder);
     //}
     s_xwaxLUTMutex.unlock();
 
@@ -177,6 +179,7 @@
     double dPitchRing[RING_SIZE];
     int ringPos = 0;
     int ringFilled = 0;
+    double cur_duration = -1.0f;
     double old_duration = -1.0f;
     int reportedMode = 0;
     bool reportedPlayButton = 0;
@@ -225,36 +228,62 @@
         //if no track loaded, let track selection work but that's it
         if (duration == NULL)
         {
-            bTrackSelectMode = true;
-            doTrackSelection(false, dVinylPitch, iPosition);
+            //until I can figure out how to detect "track 2" on serato CD,
+            //don't try track selection
+            if (!m_bCDControl)
+            {
+                bTrackSelectMode = true;
+                doTrackSelection(false, dVinylPitch, iPosition);
+            }
             continue;
         }
         //qDebug() << m_group << id << iPosition << dVinylPitch;
 
-        double cur_duration = duration->get();
+        cur_duration = duration->get();
+        
+        
+        //Has a new track been loaded?
         //FIXME? we should really sync on all track changes
         if (cur_duration != old_duration)
         {
             bForceResync=true;
             bTrackSelectMode = false; //just in case
             old_duration = cur_duration;
+            //duration from the control object is an integer.  We need
+            //more precision:
+            fTrackDuration = trackSamples->get() / 2 / trackSampleRate->get();
+            
+            //we were at record end, so turn it off and restore mode
+            if(atRecordEnd)
+            {
+                disableRecordEndMode();
+                if (iOldMode == MIXXX_VCMODE_CONSTANT)
+                    iVCMode = MIXXX_VCMODE_RELATIVE;
+                else
+                    iVCMode = iOldMode;
+            }
         }
 
-        dVinylPosition = iPosition;
-        dVinylPosition = dVinylPosition / 1000.0f;
-        dVinylPosition -= iLeadInTime;
+        //make sure dVinylPosition only has good values
+        if (iPosition != -1)
+        {
+            dVinylPosition = iPosition;
+            dVinylPosition = dVinylPosition / 1000.0f;
+            dVinylPosition -= iLeadInTime;
+        }
+        
+        
 
         //Initialize drift control to zero in case we don't get any position data to calculate it with.
         dDriftControl = 0.0f;
 
-        filePosition = playPos->get() * cur_duration;             //Get the playback position in the file in seconds.
+        filePosition = playPos->get() * fTrackDuration;             //Get the playback position in the file in seconds.
 
         reportedMode = mode->get();
         reportedPlayButton = playButton->get();
 
         if (iVCMode != reportedMode)
         {
-            //qDebug() << "cur mode" << iVCMode << "new mode" << reportedMode;
             //if we are playing, don't allow change
             //to absolute mode (would cause sudden track skip)
             if (reportedPlayButton && reportedMode == MIXXX_VCMODE_ABSOLUTE)
@@ -282,7 +311,6 @@
             iVCMode = MIXXX_VCMODE_RELATIVE;
             mode->slotSet((double)iVCMode);
         }
-
         //are we newly playing near the end of the record?  (in absolute mode, this happens
         //when the filepos is past safe (more accurate),
         //but it can also happen in relative mode if the vinylpos is nearing the end
@@ -292,13 +320,13 @@
         {
             if (iVCMode == MIXXX_VCMODE_ABSOLUTE)
             {
-                if ((filePosition + iLeadInTime) * 1000.0f  > timecoder_get_safe(&timecoder) &&
+                if ((filePosition + iLeadInTime) * 1000.0f  > m_uiSafeZone &&
                     !bForceResync) //corner case: we are waiting for resync so don't enable just yet
                     enableRecordEndMode();
             }
             else if (iVCMode == MIXXX_VCMODE_RELATIVE || iVCMode == MIXXX_VCMODE_CONSTANT)
             {
-                if (iPosition != -1 && iPosition > timecoder_get_safe(&timecoder))
+                if (iPosition != -1 && iPosition > m_uiSafeZone)
                     enableRecordEndMode();
             }
         }
@@ -307,25 +335,20 @@
         {
             //if atRecordEnd was true, maybe it no longer applies:
 
-            if ((iVCMode == MIXXX_VCMODE_ABSOLUTE &&
-                    (filePosition + iLeadInTime) * 1000.0f  <= timecoder_get_safe(&timecoder)))
-            {
-                //if we are in absolute mode and the file position is in a safe zone now
-                disableRecordEndMode();
-            }
-            else if (!reportedPlayButton)
+            if (!reportedPlayButton)
             {
                 //if we turned off play button, also disable
                 disableRecordEndMode();
             }
-            else if (iPosition != -1)
+            else if (iPosition != -1 && 
+                     iPosition <= m_uiSafeZone &&
+                     dVinylPosition > 0 &&
+                     checkSteadyPitch(dVinylPitch, filePosition) > 0.5)
+                     
             {
-                //if relative mode, and vinylpos is safe
-                if (iVCMode == MIXXX_VCMODE_RELATIVE &&
-                    iPosition <= timecoder_get_safe(&timecoder))
-                {
-                    disableRecordEndMode();
-                }
+                //if good position, and safe, and not in leadin, and steady,
+                //disable
+                disableRecordEndMode();
             }
 
             if (atRecordEnd)
@@ -345,17 +368,22 @@
 
         if (!atRecordEnd)
         {
-            if (iPosition != -1 && iPosition > timecoder_get_safe(&timecoder))
+            if (iPosition != -1 && iPosition > m_uiSafeZone)
             {
-                if (!bTrackSelectMode)
+                //until I can figure out how to detect "track 2" on serato CD,
+                //don't try track selection
+                if (!m_bCDControl)
                 {
-                    qDebug() << "position greater than safe, select mode" << iPosition << timecoder_get_safe(&timecoder);
-                    bTrackSelectMode = true;
-                    togglePlayButton(FALSE);
-                       resetSteadyPitch(0.0f, 0.0f);
-                    controlScratch->slotSet(0.0f);
+                    if (!bTrackSelectMode)
+                    {
+                        qDebug() << "position greater than safe, select mode" << iPosition << m_uiSafeZone;
+                        bTrackSelectMode = true;
+                        togglePlayButton(FALSE);
+                           resetSteadyPitch(0.0f, 0.0f);
+                        controlScratch->slotSet(0.0f);
+                    }
+                    doTrackSelection(true, dVinylPitch, iPosition);
                 }
-                doTrackSelection(true, dVinylPitch, iPosition);
 
                 //hm I wonder if track will keep playing while this happens?
                 //not sure what we want to do here...  probably enforce
@@ -432,8 +460,9 @@
 
                 //save the absolute amount of drift for when we need to estimate vinyl position
                 dDriftAmt = dVinylPosition - filePosition;
+                
+                //qDebug() << "drift" << dDriftAmt;
 
-                //qDebug() << "vinyl" << dVinylPosition << "file" << filePosition;
                 if (bForceResync)
                 {
                     //if forceresync was set but we're no longer absolute,
@@ -504,12 +533,14 @@
 
                 //Calculate how much the vinyl's position has drifted from it's timecode and compensate for it.
                 //(This is caused by the manufacturing process of the vinyl.)
-                dDriftControl = ((filePosition - dVinylPosition)  / dVinylPosition) / 100 * 4.0f;
+                if (fabs(dDriftAmt) > 0.1 && fabs(dDriftAmt) < 5.0) {
+                    dDriftControl = dDriftAmt;
+                } else {
+                    dDriftControl = 0.0;
+                }
 
                 //if we hit the end of the ring, loop around
-                ringPos++;
-                if(ringPos >= RING_SIZE)
-                        ringPos = 0;
+                ringPos = (ringPos + 1) % RING_SIZE;
                 dOldPos = dVinylPosition;
             }
             else
@@ -528,6 +559,14 @@
                     ringFilled = 0;
                     continue;
                 }
+                
+                if (iVCMode == MIXXX_VCMODE_ABSOLUTE &&
+                    fabs(dVinylPitch) < 0.05 &&
+                    fabs(dDriftAmt) >= 0.3f)
+                {
+                    qDebug() << "slow, out of sync, syncing position";
+                    syncPosition();
+                }
 
                 dOldPos = filePosition + dDriftAmt;
 
@@ -556,13 +595,12 @@
             else
                 averagePitch = dVinylPitch;
 
-
             if (iVCMode == MIXXX_VCMODE_ABSOLUTE)
             {
-                controlScratch->slotSet(averagePitch + dDriftControl);
+                controlScratch->slotSet(dVinylPitch + dDriftControl);
                 if (iPosition != -1 && reportedPlayButton && uiUpdateTime(filePosition))
                 {
-                    rateSlider->slotSet(rateDir->get() * (fabs(averagePitch + dDriftControl) - 1.0f) / fRateRange);
+                    rateSlider->slotSet(rateDir->get() * (fabs(dVinylPitch + dDriftControl) - 1.0f) / fRateRange);
                     dUiUpdateTime = filePosition;
                 }
             }
@@ -587,14 +625,21 @@
             //let the track play a wee bit more before deciding we've stopped
 
             rateSlider->slotSet(0.0f);
+            
+            if (iVCMode == MIXXX_VCMODE_ABSOLUTE &&
+                fabs(dVinylPosition - filePosition) >= 0.1f)
+            {
+                qDebug() << "stopped, out of sync, syncing position";
+                syncPosition();
+            }
 
             if(fabs(filePosition - dOldFilePos) >= 0.1 ||
                 !m_bNeedleSkipPrevention ||
                 filePosition == dOldFilePos)
             {
                 //We are not playing any more
-                   togglePlayButton(FALSE);
-                   resetSteadyPitch(0.0f, 0.0f);
+                togglePlayButton(FALSE);
+                resetSteadyPitch(0.0f, 0.0f);
                 controlScratch->slotSet(0.0f);
                 //resetSteadyPitch(dVinylPitch, filePosition);
                 //Notify the UI that the timecode quality is garbage/missing.
@@ -643,15 +688,8 @@
 {
     vinylStatus->slotSet(VINYL_STATUS_OK);
     atRecordEnd = false;
-    //don't start a new track with constant mode
-    if (iVCMode == MIXXX_VCMODE_CONSTANT)
-    {
-        if (iOldMode == MIXXX_VCMODE_CONSTANT)
-            iVCMode = MIXXX_VCMODE_RELATIVE;
-        else
-            iVCMode = iOldMode;
-        mode->slotSet((double)iVCMode);
-    }
+    iVCMode = MIXXX_VCMODE_RELATIVE;
+    mode->slotSet((double)iVCMode);
 }
 
 void VinylControlXwax::togglePlayButton(bool on)
@@ -769,11 +807,19 @@
 void VinylControlXwax::syncPosition()
 {
     //qDebug() << "sync position" << dVinylPosition / duration->get();
-       vinylSeek->slotSet(dVinylPosition / duration->get());    //VinylPos in seconds / total length of song
+    vinylSeek->slotSet(dVinylPosition / fTrackDuration);    //VinylPos in seconds / total length of song
 }
 
 bool VinylControlXwax::checkEnabled(bool was, bool is)
 {
+	// if we're not enabled, but the last object was, try turning ourselves on
+    // XXX: is this just a race that's working right now?
+    if (!is and wantenabled->get())
+    {
+        enabled->slotSet(true);
+        wantenabled->slotSet(false); //don't try to do this over and over
+        return true; //optimism!
+    }
     if (was != is)
     {
         //we reset the scratch value, but we don't reset the rate slider.
@@ -824,7 +870,9 @@
 {
     bQualityRing[iQualPos] = quality_sample;
     if(iQualFilled < QUALITY_RING_SIZE)
-    iQualFilled++;
+    {
+        iQualFilled++;
+    }
 
     int quality = 0;
     for (int i=0; i<iQualFilled; i++)
@@ -836,9 +884,7 @@
     //qDebug() << "quality" << m_fTimecodeQuality;
     m_fTimecodeQuality = (float)quality / (float)iQualFilled;
 
-    iQualPos++;
-    if(iQualPos >= QUALITY_RING_SIZE)
-        iQualPos = 0;
+    iQualPos = (iQualPos + 1) % QUALITY_RING_SIZE;
 }
 
 float VinylControlXwax::getAngle()
 
=== modified file 'mixxx/src/vinylcontrol/vinylcontrolxwax.h'
--- mixxx/src/vinylcontrol/vinylcontrolxwax.h	2011-04-17 04:16:00 +0000
+++ mixxx/src/vinylcontrol/vinylcontrolxwax.h	2011-07-30 20:21:03 +0000
@@ -48,6 +48,7 @@
     void establishQuality(bool quality_sample);
 
     double dFileLength; // The length (in samples) of the current song.
+    unsigned int m_uiSafeZone; // Cache the position of the end of record
 
     double dOldPos; // The position read last time it was polled.
     double dOldPitch;
 
=== modified file 'mixxx/src/waveform/waveformrenderer.cpp'
--- mixxx/src/waveform/waveformrenderer.cpp	2011-04-06 21:20:35 +0000
+++ mixxx/src/waveform/waveformrenderer.cpp	2011-07-30 20:21:03 +0000
@@ -26,6 +26,8 @@
 #define DEFAULT_SUBPIXELS_PER_PIXEL 4
 #define DEFAULT_PIXELS_PER_SECOND 100
 
+#define RATE_INCREMENT 0.015
+
 void WaveformRenderer::run() {
     double msecs_old = 0, msecs_elapsed = 0;
 
@@ -61,6 +63,7 @@
     m_dRate(0),
     m_dRateRange(0),
     m_dRateDir(0),
+    m_iRateAdjusting(0),
     m_iDupes(0),
     m_dPlayPosAdjust(0),
     m_iLatency(0),
@@ -190,7 +193,7 @@
 }
 
 void WaveformRenderer::slotUpdateRate(double v) {
-    m_dRate = v;
+    m_dTargetRate = v;
 }
 
 void WaveformRenderer::slotUpdateRateRange(double v) {
@@ -501,6 +504,26 @@
 
     //qDebug() << m_dPlayPosAdjust;
 
+    // Gradually stretch the waveform
+    if (fabs(m_dTargetRate - m_dRate) > RATE_INCREMENT)
+    {
+        if ((m_dTargetRate - m_dRate) > 0)
+        {
+            m_iRateAdjusting = m_iRateAdjusting > 0 ? m_iRateAdjusting + 1 : 1;
+            m_dRate = math_min(m_dTargetRate, m_dRate + RATE_INCREMENT * pow(m_iRateAdjusting, 2) / 80);
+        }
+        else
+        {
+            m_iRateAdjusting = m_iRateAdjusting < 0 ? m_iRateAdjusting - 1 : -1;
+            m_dRate = math_max(m_dTargetRate, m_dRate - RATE_INCREMENT * pow(m_iRateAdjusting, 2) / 80);
+        }
+    }
+    else
+    {
+        m_iRateAdjusting = 0;
+        m_dRate = m_dTargetRate;
+    }
+        
     // Limit our rate adjustment to < 99%, "Bad Things" might happen otherwise.
     double rateAdjust = m_dRateDir * math_min(0.99, m_dRate * m_dRateRange);
 
 
=== modified file 'mixxx/src/waveform/waveformrenderer.h'
--- mixxx/src/waveform/waveformrenderer.h	2011-03-08 22:17:41 +0000
+++ mixxx/src/waveform/waveformrenderer.h	2011-07-30 20:21:03 +0000
@@ -61,7 +61,8 @@
 
     int m_iPlayPosTime, m_iPlayPosTimeOld;
     QTime m_playPosTime, m_playPosTimeOld;
-    double m_dPlayPos, m_dPlayPosOld, m_dRate, m_dRateRange, m_dRateDir;
+    double m_dPlayPos, m_dPlayPosOld, m_dTargetRate, m_dRate, m_dRateRange, m_dRateDir;
+    int m_iRateAdjusting;
     int m_iDupes;
     double m_dPlayPosAdjust;
     int m_iLatency;
 
=== modified file 'mixxx/src/widget/wspinny.cpp'
--- mixxx/src/widget/wspinny.cpp	2011-05-12 14:46:18 +0000
+++ mixxx/src/widget/wspinny.cpp	2011-07-30 20:21:03 +0000
@@ -6,7 +6,7 @@
 #include "sharedglcontext.h"
 #include "wspinny.h"
 
-WSpinny::WSpinny(QWidget* parent) : QGLWidget(SharedGLContext::getContext(), parent),
+WSpinny::WSpinny(QWidget* parent, VinylControlManager* pVCMan) : QGLWidget(SharedGLContext::getContext(), parent),
     m_pBG(NULL), 
     m_pFG(NULL),
     m_pGhost(NULL),
@@ -20,6 +20,12 @@
     m_pScratchToggle(NULL),
     m_pScratchPos(NULL),
     m_pVinylControlSpeedType(NULL),
+    m_pVinylControlEnabled(NULL),
+    m_bVinylActive(false),
+    m_bSignalActive(true),
+    m_iSize(0),
+    m_iTimerId(0),
+    m_iSignalUpdateTick(0),
     m_fAngle(0.0f),
     m_fGhostAngle(0.0f),
     m_dPausedPosition(0.0f),
@@ -29,6 +35,10 @@
     m_iFullRotations(0),
     m_dPrevTheta(0.)
 {
+#ifdef __VINYLCONTROL__
+    m_pVCManager = pVCMan;
+    m_pVinylControl = NULL;
+#endif
     //Drag and drop
     setAcceptDrops(true);
 }
@@ -69,6 +79,13 @@
     if (m_pBG && !m_pBG->isNull()) {
         setFixedSize(m_pBG->size());
     }
+    
+#ifdef __VINYLCONTROL__    
+    m_iSize = MIXXX_VINYL_SCOPE_SIZE;
+    m_qImage = QImage(m_iSize, m_iSize, QImage::Format_ARGB32);
+    //fill with transparent black
+    m_qImage.fill(qRgba(0,0,0,0));
+#endif
 
     m_pPlay = new ControlObjectThreadMain(ControlObject::getControl(
                         ConfigKey(group, "play")));
@@ -92,6 +109,15 @@
                         ConfigKey(group, "scratch_position_enable")));
     m_pScratchPos = new ControlObjectThreadMain(ControlObject::getControl(
                         ConfigKey(group, "scratch_position")));
+                        
+    Q_ASSERT(m_pPlayPos);
+    Q_ASSERT(m_pDuration);
+
+    //Repaint when visual_playposition changes.
+    connect(m_pVisualPlayPos, SIGNAL(valueChanged(double)),
+            this, SLOT(updateAngle(double)));
+            
+#ifdef __VINYLCONTROL__
     m_pVinylControlSpeedType = new ControlObjectThreadMain(ControlObject::getControl(
                         ConfigKey(group, "vinylcontrol_speed_type")));
     if (m_pVinylControlSpeedType)
@@ -99,17 +125,26 @@
         //Initialize the rotational speed.
         this->updateVinylControlSpeed(m_pVinylControlSpeedType->get());
     }
-    Q_ASSERT(m_pPlayPos);
-    Q_ASSERT(m_pDuration);
-
-    //Repaint when visual_playposition changes.
-    connect(m_pVisualPlayPos, SIGNAL(valueChanged(double)),
-            this, SLOT(updateAngle(double)));
+    m_pVinylControlEnabled = new ControlObjectThreadMain(ControlObject::getControl(
+                        ConfigKey(group, "vinylcontrol_enabled")));
+    m_pSignalEnabled = new ControlObjectThreadMain(ControlObject::getControl(
+                        ConfigKey(group, "vinylcontrol_signal_enabled")));
+    m_pRate = new ControlObjectThreadMain(ControlObject::getControl(
+                        ConfigKey(group, "rate")));
 
     //Match the vinyl control's set RPM so that the spinny widget rotates at the same 
     //speed as your physical decks, if you're using vinyl control.
     connect(m_pVinylControlSpeedType, SIGNAL(valueChanged(double)),
             this, SLOT(updateVinylControlSpeed(double)));
+            
+    //Make sure vinyl control proxies are up to date
+    connect(m_pVinylControlEnabled, SIGNAL(valueChanged(double)),
+            this, SLOT(updateVinylControlEnabled(double)));
+            
+    //Check the rate to see if we are stopped
+    connect(m_pRate, SIGNAL(valueChanged(double)),
+            this, SLOT(updateRate(double)));
+#endif            
 }
 
 void WSpinny::paintEvent(QPaintEvent *e)
@@ -121,6 +156,49 @@
     if (m_pBG) {
         p.drawPixmap(0, 0, *m_pBG);
     }
+    
+#ifdef __VINYLCONTROL__
+    // Overlay the signal quality drawing if vinyl is active
+    if (m_bVinylActive && m_bSignalActive)
+    {
+        //reduce cpu load by only updating every 3 times
+        m_iSignalUpdateTick = (m_iSignalUpdateTick + 1) % 3;
+        if (m_iSignalUpdateTick == 0)
+        {
+            unsigned char * buf = m_pVinylControl->getScopeBytemap();
+            int r,g,b;
+            QColor qual_color = QColor();
+            float signalQuality = m_pVinylControl->getTimecodeQuality();
+
+            //color is related to signal quality
+            //hsv:  s=1, v=1
+            //h is the only variable.
+            //h=0 is red, h=120 is green
+            qual_color.setHsv((int)(120.0 * signalQuality), 255, 255);
+            qual_color.getRgb(&r, &g, &b);
+            
+            if (buf) {
+                for (int y=0; y<m_iSize; y++) {
+                    QRgb *line = (QRgb *)m_qImage.scanLine(y);
+                    for(int x=0; x<m_iSize; x++) {
+                        //use xwax's bitmap to set alpha data only
+                        //adjust alpha by 3/4 so it's not quite so distracting
+                        //setpixel is slow, use scanlines instead
+                        //m_qImage.setPixel(x, y, qRgba(r,g,b,(int)buf[x+m_iSize*y] * .75));
+                        *line = qRgba(r,g,b,(int)(buf[x+m_iSize*y] * .75));
+                        line++;
+                    }
+                }
+                p.drawImage(this->rect(), m_qImage);
+            }
+        }
+        else
+        {
+            //draw the last good image
+            p.drawImage(this->rect(), m_qImage);
+        }
+    }
+#endif
 
     //To rotate the foreground pixmap around the center of the image,
     //we use the classic trick of translating the coordinate system such that
@@ -147,7 +225,7 @@
         //Rotate back to the playback position (not the ghost positon), 
         //and draw the beat marks from there.
         p.restore();
-
+        
         /*
         //Draw a line where the next 4 beats are 
         double bpm = m_pBPM->get();
@@ -247,6 +325,29 @@
 void WSpinny::updateAngle(double playpos)
 {
     m_fAngle = calculateAngle(playpos);
+    
+    // if we had the timer going, kill it
+    if (m_iTimerId != 0) {
+        killTimer(m_iTimerId);
+        m_iTimerId = 0;
+    }
+    update();
+}
+
+void WSpinny::updateRate(double rate)
+{
+    //if rate is zero, updateAngle won't get called, 
+    if (rate == 0.0 && m_bVinylActive)
+    {
+        if (m_iTimerId == 0)
+        {
+            m_iTimerId = startTimer(10);
+        }
+    }
+}
+
+void WSpinny::timerEvent(QTimerEvent *event)
+{
     update();
 }
 
@@ -266,6 +367,60 @@
     m_dRotationsPerSecond = rpm/60.;
 }
 
+void WSpinny::updateVinylControlEnabled(double enabled)
+{
+#ifdef __VINYLCONTROL__
+    if (enabled)
+    {
+        if (m_pVinylControl == NULL)
+        {
+            QList<VinylControlProxy*> VCProxiesList = m_pVCManager->vinylControlProxies();
+            if (m_group == "[Channel1]")
+            {
+                m_pVinylControl = VCProxiesList.value(0);
+            }
+            else if (m_group == "[Channel2]")
+            {
+                m_pVinylControl = VCProxiesList.value(1);
+            }
+            
+            if (m_pVinylControl != NULL)
+            {
+                m_bVinylActive = true;
+                m_bSignalActive = m_pSignalEnabled->get();
+                connect(m_pVinylControl, SIGNAL(destroyed()),
+                    this, SLOT(invalidateVinylControl()));
+            }
+        }
+        else
+        {
+            m_bVinylActive = true;
+        }
+    }
+    else
+    {
+        m_bVinylActive = false;
+        //don't need the timer anymore
+        if (m_iTimerId != 0)
+        {
+            killTimer(m_iTimerId);
+        }
+        // draw once more to erase signal
+        update();
+    }
+#endif
+}
+
+void WSpinny::invalidateVinylControl()
+{
+#ifdef __VINYLCONTROL__    
+    m_bVinylActive = false;
+    m_pVinylControl = NULL;
+    update();
+#endif
+}
+
+
 void WSpinny::mouseMoveEvent(QMouseEvent * e)
 {
     int y = e->y();
@@ -301,7 +456,7 @@
     //qDebug() << "c t:" << theta << "pt:" << m_dPrevTheta << 
     //            "icr" << m_iFullRotations;
 
-    if (e->buttons() & Qt::LeftButton)
+    if (e->buttons() & Qt::LeftButton && !m_bVinylActive)
     {
         //Convert deltaTheta into a percentage of song length.
         double absPos = calculatePositionFromAngle(theta);
@@ -325,6 +480,10 @@
 
     m_iStartMouseX = x;
     m_iStartMouseY = y;
+    
+    //don't do anything if vinyl control is active
+    if (m_bVinylActive)
+        return;
 
     if (e->button() == Qt::LeftButton)
     {
@@ -394,7 +553,7 @@
     Q_UNUSED(e); //ditch unused param warning
 
     /*
-    double wheelDirection = ((QWheelEvent *)e)->delta() / 120.;
+    double wheelDirection = ((QWheelEvent *)e)->delta() / 120.;
     double newValue = getValue() + (wheelDirection);
     this->updateValue(newValue);
 
 
=== modified file 'mixxx/src/widget/wspinny.h'
--- mixxx/src/widget/wspinny.h	2011-05-11 04:38:17 +0000
+++ mixxx/src/widget/wspinny.h	2011-07-30 20:21:03 +0000
@@ -4,6 +4,11 @@
 
 #include <QGLWidget>
 #include "wwidget.h"
+#include "vinylcontrol/vinylcontrolmanager.h"
+#ifdef __VINYLCONTROL__
+#include "vinylcontrol/vinylcontrolproxy.h"
+#include "vinylcontrol/vinylcontrol.h"
+#endif
 
 class ControlObjectThreadMain;
 
@@ -11,15 +16,18 @@
 {
     Q_OBJECT
     public:
-        WSpinny(QWidget* parent);
+        WSpinny(QWidget* parent, VinylControlManager* pVCMan);
         ~WSpinny();
         void setup(QDomNode node, QString group);
         void dragEnterEvent(QDragEnterEvent *event);
         void dropEvent(QDropEvent *event);
     public slots:
         void updateAngle(double);
+        void updateRate(double);
         void updateAngleForGhost();
         void updateVinylControlSpeed(double rpm);
+        void updateVinylControlEnabled(double enabled);
+        void invalidateVinylControl();
     signals:
         void trackDropped(QString filename, QString group);
     protected:
@@ -29,6 +37,7 @@
         void mousePressEvent(QMouseEvent * e);
         void mouseReleaseEvent(QMouseEvent * e);
         void wheelEvent(QWheelEvent *e);
+        void timerEvent(QTimerEvent* event);
 
         double calculateAngle(double playpos);
         int calculateFullRotations(double playpos);
@@ -47,7 +56,22 @@
         ControlObjectThreadMain* m_pScratch;
         ControlObjectThreadMain* m_pScratchToggle;
         ControlObjectThreadMain* m_pScratchPos;
+        ControlObjectThreadMain* m_pRate;
         ControlObjectThreadMain* m_pVinylControlSpeedType;
+        ControlObjectThreadMain* m_pVinylControlEnabled;
+        ControlObjectThreadMain* m_pSignalEnabled;
+
+#ifdef __VINYLCONTROL__
+        VinylControlManager* m_pVCManager;
+        VinylControlProxy* m_pVinylControl;
+#endif
+        bool m_bVinylActive;
+        bool m_bSignalActive;
+        QImage m_qImage;
+        int m_iSize;
+        int m_iTimerId;
+        int m_iSignalUpdateTick;
+        
         QString m_group;
         float m_fAngle; //Degrees
         float m_fGhostAngle;