implemented latency() function for DirectSound and WavOut output plugins

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@7123 90c681e8-e032-0410-971d-27865f9a5e38

4 files changed, 20 insertions, 8 deletions

diff --git a/src/plugins/Output/waveout/outputwaveout.cpp b/src/plugins/Output/waveout/outputwaveout.cpp
index 6b26608b1..7a8b24d4b 100644
--- a/src/plugins/Output/waveout/outputwaveout.cpp
+++ b/src/plugins/Output/waveout/outputwaveout.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************

- *   Copyright (C) 2009-2013 by Ilya Kotov                                 *

+ *   Copyright (C) 2009-2017 by Ilya Kotov                                 *

  *   forkotov02@hotmail.ru                                                 *

  *                                                                         *

  *   This program is free software; you can redistribute it and/or modify  *

@@ -75,8 +75,8 @@ free_memory (void)
 

 OutputWaveOut::OutputWaveOut() : Output()

 {

-    //m_connection = 0;

-    //m_dev = 0;

+    m_totalWritten = 0;

+    m_frameSize = 0;

 }

 

 OutputWaveOut::~OutputWaveOut()

@@ -87,6 +87,7 @@ OutputWaveOut::~OutputWaveOut()
 bool OutputWaveOut::initialize(quint32 freq, ChannelMap map, Qmmp::AudioFormat format)

 {

     Q_UNUSED(format);

+    m_totalWritten = 0;

     if (!waveOutGetNumDevs ())

     {

         qWarning("OutputWaveOut: no audio device found");

@@ -132,14 +133,20 @@ bool OutputWaveOut::initialize(quint32 freq, ChannelMap map, Qmmp::AudioFormat f
     waveOutReset (dev);

     InitializeCriticalSection (&cs);

     configure(freq, map, Qmmp::PCM_S16LE);

-

+    m_frameSize = channels() * sampleSize();

     return true;

 }

 

 

 qint64 OutputWaveOut::latency()

 {

-    return 0;

+    MMTIME mmtime;

+    mmtime.wType = TIME_SAMPLES;

+

+    if(waveOutGetPosition(dev, &mmtime, sizeof(MMTIME)) != MMSYSERR_NOERROR)

+        return 0;

+

+    return (m_totalWritten / m_frameSize - mmtime.u.sample) * 1000 / sampleRate();

 }

 

 qint64 OutputWaveOut::writeAudio(unsigned char *data, qint64 len)

@@ -194,6 +201,7 @@ qint64 OutputWaveOut::writeAudio(unsigned char *data, qint64 len)
     ScheduledBlocks++;

     LeaveCriticalSection (&cs);

 

+    m_totalWritten += len;

     return len;

 }

 

@@ -220,6 +228,7 @@ void OutputWaveOut::reset()
    while (PlayedWaveHeadersCount > 0)                        // free used blocks ...

       free_memory ();

    waveOutReset (dev);

+   m_totalWritten = 0;

 }

 

 void OutputWaveOut::uninitialize()

@@ -239,6 +248,7 @@ void OutputWaveOut::uninitialize()
     }

 

     DeleteCriticalSection (&cs);

+    m_totalWritten = 0;

     return;

 }

 

diff --git a/src/plugins/Output/waveout/outputwaveout.h b/src/plugins/Output/waveout/outputwaveout.h
index 688d4ed45..18dbc7126 100644
--- a/src/plugins/Output/waveout/outputwaveout.h
+++ b/src/plugins/Output/waveout/outputwaveout.h
@@ -1,5 +1,5 @@
 /***************************************************************************

- *   Copyright (C) 2009-2014 by Ilya Kotov                                 *

+ *   Copyright (C) 2009-2017 by Ilya Kotov                                 *

  *   forkotov02@hotmail.ru                                                 *

  *                                                                         *

  *   This program is free software; you can redistribute it and/or modify  *

@@ -49,6 +49,8 @@ private:
     // helper functions

     void status();

     void uninitialize();

+    qint64 m_totalWritten;

+    qint32 m_frameSize;

 };

 

 class VolumeWaveOut : public Volume

diff --git a/src/plugins/Output/waveout/outputwaveoutfactory.cpp b/src/plugins/Output/waveout/outputwaveoutfactory.cpp
index 102d9cc21..d3861a077 100644
--- a/src/plugins/Output/waveout/outputwaveoutfactory.cpp
+++ b/src/plugins/Output/waveout/outputwaveoutfactory.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************

- *   Copyright (C) 2009-2016 by Ilya Kotov                                 *

+ *   Copyright (C) 2009-2017 by Ilya Kotov                                 *

  *   forkotov02@hotmail.ru                                                 *

  *                                                                         *

  *   This program is free software; you can redistribute it and/or modify  *

diff --git a/src/plugins/Output/waveout/outputwaveoutfactory.h b/src/plugins/Output/waveout/outputwaveoutfactory.h
index f7654dbe1..82d8529a6 100644
--- a/src/plugins/Output/waveout/outputwaveoutfactory.h
+++ b/src/plugins/Output/waveout/outputwaveoutfactory.h
@@ -1,5 +1,5 @@
 /***************************************************************************

- *   Copyright (C) 2009-2014 by Ilya Kotov                                 *

+ *   Copyright (C) 2009-2017 by Ilya Kotov                                 *

  *   forkotov02@hotmail.ru                                                 *

  *                                                                         *

  *   This program is free software; you can redistribute it and/or modify  *