Changeset 846 for trunk/src/multimedia/audio/qaudiooutput_win32_p.cpp

Timestamp:

May 5, 2011, 5:36:53 AM (14 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/multimedia/audio/qaudiooutput_win32_p.cpp (modified) (7 diffs)

trunk/src/multimedia/audio/qaudiooutput_win32_p.cpp

@@ -1 +1 @@
 /****************************************************************************
 **
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 201 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation ([email protected])
@@ -53 +53 @@
 #include "qaudiooutput_win32_p.h"
 
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 //#define DEBUG_AUDIO 1
 
@@ -147 +194 @@
     for(int i = 0; i < count; i++) {
         waveOutUnprepareHeader(hWaveOut,blocks, sizeof(WAVEHDR));
-        blocks+=sizeof(WAVEHDR);
+        blocks+;
     }
     HeapFree(GetProcessHeap(), 0, blockArray);
@@ -205 +252 @@
     qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
 #endif
-    if (!(settings.frequency() >= 8000 && settings.frequency() <= 48000)) {
+
+    period_size = 0;
+
+    if (!settings.isValid()) {
+        qWarning("QAudioOutput: open error, invalid format.");
+    } else if (settings.channels() <= 0) {
+        qWarning("QAudioOutput: open error, invalid number of channels (%d).",
+                 settings.channels());
+    } else if (settings.sampleSize() <= 0) {
+        qWarning("QAudioOutput: open error, invalid sample size (%d).",
+                 settings.sampleSize());
+    } else if (settings.frequency() < 8000 || settings.frequency() > 48000) {
+        qWarning("QAudioOutput: open error, frequency out of range (%d).", settings.frequency());
+    } else if (buffer_size == 0) {
+        // Default buffer size, 200ms, default period size is 40ms
+        buffer_size
+                = (settings.frequency()
+                * settings.channels()
+                * settings.sampleSize()
+                + 39) / 40;
+        period_size = buffer_size / 5;
+    } else {
+        period_size = buffer_size / 5;
+    }
+
+    if (period_size == 0) {
         errorState = QAudio::OpenError;
         deviceState = QAudio::StoppedState;
         emit stateChanged(deviceState);
-        qWarning("QAudioOutput: open error, frequency out of range.");
         return false;
     }
-    if(buffer_size == 0) {
-        // Default buffer size, 200ms, default period size is 40ms
-        buffer_size = settings.frequency()*settings.channels()*(settings.sampleSize()/8)*0.2;
-        period_size = buffer_size/5;
-    } else {
-        period_size = buffer_size/5;
-    }
+
     waveBlocks = allocateBlocks(period_size, buffer_size/period_size);
 
@@ -251 +316 @@
             == MMSYSERR_NOERROR) {
             QString tmp;
-            tmp = QString::fromUtf16((const unsigned short*)woc.szPname);
+            tmp = QString*)woc.szPname);
             if(tmp.compare(QLatin1String(m_device)) == 0) {
                 devId = ii;
@@ -259 +324 @@
     }
 
-    if(waveOutOpen(&hWaveOut, devId, &wfx,
-                (DWORD_PTR)&waveOutProc,
-                (DWORD_PTR) this,
-                CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
-        errorState = QAudio::OpenError;
-        deviceState = QAudio::StoppedState;
-        emit stateChanged(deviceState);
-        qWarning("QAudioOutput: open error");
-        return false;
+    if ( settings.channels() <= 2) {
+        if(waveOutOpen(&hWaveOut, devId, &wfx,
+                    (DWORD_PTR)&waveOutProc,
+                    (DWORD_PTR) this,
+                    CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
+            errorState = QAudio::OpenError;
+            deviceState = QAudio::StoppedState;
+            emit stateChanged(deviceState);
+            qWarning("QAudioOutput: open error");
+            return false;
+        }
+    } else {
+        WAVEFORMATEXTENSIBLE wfex;
+        wfex.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
+        wfex.Format.nChannels = settings.channels();
+        wfex.Format.wBitsPerSample = settings.sampleSize();
+        wfex.Format.nSamplesPerSec = settings.frequency();
+        wfex.Format.nBlockAlign = wfex.Format.nChannels*wfex.Format.wBitsPerSample/8;
+        wfex.Format.nAvgBytesPerSec=wfex.Format.nSamplesPerSec*wfex.Format.nBlockAlign;
+        wfex.Samples.wValidBitsPerSample=wfex.Format.wBitsPerSample;
+        static const GUID _KSDATAFORMAT_SUBTYPE_PCM = {
+             0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
+        wfex.SubFormat=_KSDATAFORMAT_SUBTYPE_PCM;
+        wfex.Format.cbSize=22;
+
+        wfex.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
+        if (settings.channels() >= 4)
+            wfex.dwChannelMask |= SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
+        if (settings.channels() >= 6)
+            wfex.dwChannelMask |= SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY;
+        if (settings.channels() == 8)
+            wfex.dwChannelMask |= SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT;
+
+        if(waveOutOpen(&hWaveOut, devId, &wfex.Format,
+                    (DWORD_PTR)&waveOutProc,
+                    (DWORD_PTR) this,
+                    CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
+            errorState = QAudio::OpenError;
+            deviceState = QAudio::StoppedState;
+            emit stateChanged(deviceState);
+            qWarning("QAudioOutput: open error");
+            return false;
+        }
     }
 
@@ -488 +587 @@
             }
             if ( out < l) {
-                // Didnt write all data
+                // Didnt write all data
                 audioSource->seek(audioSource->pos()-(l-out));
             }