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qtmultimedia/src/multimedia/audio/qaudiodeviceinfo_win32_p.cpp
Mithra Pattison 53fdcca366 Delete obsolete class methods and update related code 
Delete obsolete methods from QAudioFormat and QAudioDeviceInfo
and update code that relied on the obsolete methods.

Change-Id: I007e36375a45399b1d5a289341bc5d5a05dc68cc
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
2012-07-10 08:26:04 +02:00

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// INTERNAL USE ONLY: Do NOT use for any other purpose.
//
#include <windows.h>
#include <mmsystem.h>
#include "qaudiodeviceinfo_win32_p.h"
#include <dshow.h>
#if defined(Q_CC_MINGW) && !defined(__MINGW64_VERSION_MAJOR)
extern GUID CLSID_AudioInputDeviceCategory;
#ifndef __IErrorLog_INTERFACE_DEFINED__
#define __IErrorLog_INTERFACE_DEFINED__
DECLARE_INTERFACE_(IErrorLog, IUnknown)
{
STDMETHOD(AddError)(THIS_ LPCOLESTR, EXCEPINFO *) PURE;
};
#endif /* __IErrorLog_INTERFACE_DEFINED__ */
#ifndef __IPropertyBag_INTERFACE_DEFINED__
#define __IPropertyBag_INTERFACE_DEFINED__
const GUID IID_IPropertyBag = {0x55272A00, 0x42CB, 0x11CE, {0x81, 0x35, 0x00, 0xAA, 0x00, 0x4B, 0xB8, 0x51}};
DECLARE_INTERFACE_(IPropertyBag, IUnknown)
{
STDMETHOD(Read)(THIS_ LPCOLESTR, VARIANT *, IErrorLog *) PURE;
STDMETHOD(Write)(THIS_ LPCOLESTR, VARIANT *) PURE;
};
#endif /* __IPropertyBag_INTERFACE_DEFINED__ */
#endif // defined(Q_CC_MINGW) && !defined(__MINGW64_VERSION_MAJOR)
QT_BEGIN_NAMESPACE
// For mingw toolchain mmsystem.h only defines half the defines, so add if needed.
#ifndef WAVE_FORMAT_44M08
#define WAVE_FORMAT_44M08 0x00000100
#define WAVE_FORMAT_44S08 0x00000200
#define WAVE_FORMAT_44M16 0x00000400
#define WAVE_FORMAT_44S16 0x00000800
#define WAVE_FORMAT_48M08 0x00001000
#define WAVE_FORMAT_48S08 0x00002000
#define WAVE_FORMAT_48M16 0x00004000
#define WAVE_FORMAT_48S16 0x00008000
#define WAVE_FORMAT_96M08 0x00010000
#define WAVE_FORMAT_96S08 0x00020000
#define WAVE_FORMAT_96M16 0x00040000
#define WAVE_FORMAT_96S16 0x00080000
#endif
QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray dev, QAudio::Mode mode)
{
QDataStream ds(&dev, QIODevice::ReadOnly);
ds >> devId >> device;
this->mode = mode;
updateLists();
}
QAudioDeviceInfoInternal::~QAudioDeviceInfoInternal()
{
close();
}
bool QAudioDeviceInfoInternal::isFormatSupported(const QAudioFormat& format) const
{
return testSettings(format);
}
QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const
{
QAudioFormat nearest;
if (mode == QAudio::AudioOutput) {
nearest.setSampleRate(44100);
nearest.setChannelCount(2);
nearest.setByteOrder(QAudioFormat::LittleEndian);
nearest.setSampleType(QAudioFormat::SignedInt);
nearest.setSampleSize(16);
nearest.setCodec(QLatin1String("audio/pcm"));
} else {
nearest.setSampleRate(11025);
nearest.setChannelCount(1);
nearest.setByteOrder(QAudioFormat::LittleEndian);
nearest.setSampleType(QAudioFormat::SignedInt);
nearest.setSampleSize(8);
nearest.setCodec(QLatin1String("audio/pcm"));
}
return nearest;
}
QString QAudioDeviceInfoInternal::deviceName() const
{
return device;
}
QStringList QAudioDeviceInfoInternal::supportedCodecs()
{
updateLists();
return codecz;
}
QList<int> QAudioDeviceInfoInternal::supportedSampleRates()
{
updateLists();
return sampleRatez;
}
QList<int> QAudioDeviceInfoInternal::supportedChannelCounts()
{
updateLists();
return channelz;
}
QList<int> QAudioDeviceInfoInternal::supportedSampleSizes()
{
updateLists();
return sizez;
}
QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::supportedByteOrders()
{
updateLists();
return byteOrderz;
}
QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::supportedSampleTypes()
{
updateLists();
return typez;
}
bool QAudioDeviceInfoInternal::open()
{
return true;
}
void QAudioDeviceInfoInternal::close()
{
}
bool QAudioDeviceInfoInternal::testSettings(const QAudioFormat& format) const
{
// Set nearest to closest settings that do work.
// See if what is in settings will work (return value).
bool failed = false;
bool match = false;
// check codec
for( int i = 0; i < codecz.count(); i++) {
if (format.codec() == codecz.at(i))
match = true;
}
if (!match) failed = true;
// check channel
match = false;
if (!failed) {
for (int i = 0; i < channelz.count(); i++) {
if (format.channelCount() == channelz.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
// check sampleRate
match = false;
if (!failed) {
for (int i = 0; i < sampleRatez.count(); i++) {
if (format.sampleRate() == sampleRatez.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
// check sample size
match = false;
if (!failed) {
for( int i = 0; i < sizez.count(); i++) {
if (format.sampleSize() == sizez.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
// check byte order
match = false;
if (!failed) {
for( int i = 0; i < byteOrderz.count(); i++) {
if (format.byteOrder() == byteOrderz.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
// check sample type
match = false;
if (!failed) {
for( int i = 0; i < typez.count(); i++) {
if (format.sampleType() == typez.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
if(!failed) {
// settings work
return true;
}
return false;
}
void QAudioDeviceInfoInternal::updateLists()
{
// redo all lists based on current settings
bool match = false;
DWORD fmt = NULL;
if(mode == QAudio::AudioOutput) {
WAVEOUTCAPS woc;
if (waveOutGetDevCaps(devId, &woc, sizeof(WAVEOUTCAPS)) == MMSYSERR_NOERROR) {
match = true;
fmt = woc.dwFormats;
}
} else {
WAVEINCAPS woc;
if (waveInGetDevCaps(devId, &woc, sizeof(WAVEINCAPS)) == MMSYSERR_NOERROR) {
match = true;
fmt = woc.dwFormats;
}
}
sizez.clear();
sampleRatez.clear();
channelz.clear();
byteOrderz.clear();
typez.clear();
codecz.clear();
if(match) {
if ((fmt & WAVE_FORMAT_1M08)
|| (fmt & WAVE_FORMAT_1S08)
|| (fmt & WAVE_FORMAT_2M08)
|| (fmt & WAVE_FORMAT_2S08)
|| (fmt & WAVE_FORMAT_4M08)
|| (fmt & WAVE_FORMAT_4S08)
|| (fmt & WAVE_FORMAT_48M08)
|| (fmt & WAVE_FORMAT_48S08)
|| (fmt & WAVE_FORMAT_96M08)
|| (fmt & WAVE_FORMAT_96S08)
) {
sizez.append(8);
}
if ((fmt & WAVE_FORMAT_1M16)
|| (fmt & WAVE_FORMAT_1S16)
|| (fmt & WAVE_FORMAT_2M16)
|| (fmt & WAVE_FORMAT_2S16)
|| (fmt & WAVE_FORMAT_4M16)
|| (fmt & WAVE_FORMAT_4S16)
|| (fmt & WAVE_FORMAT_48M16)
|| (fmt & WAVE_FORMAT_48S16)
|| (fmt & WAVE_FORMAT_96M16)
|| (fmt & WAVE_FORMAT_96S16)
) {
sizez.append(16);
}
if ((fmt & WAVE_FORMAT_1M08)
|| (fmt & WAVE_FORMAT_1S08)
|| (fmt & WAVE_FORMAT_1M16)
|| (fmt & WAVE_FORMAT_1S16)) {
sampleRatez.append(11025);
}
if ((fmt & WAVE_FORMAT_2M08)
|| (fmt & WAVE_FORMAT_2S08)
|| (fmt & WAVE_FORMAT_2M16)
|| (fmt & WAVE_FORMAT_2S16)) {
sampleRatez.append(22050);
}
if ((fmt & WAVE_FORMAT_4M08)
|| (fmt & WAVE_FORMAT_4S08)
|| (fmt & WAVE_FORMAT_4M16)
|| (fmt & WAVE_FORMAT_4S16)) {
sampleRatez.append(44100);
}
if ((fmt & WAVE_FORMAT_48M08)
|| (fmt & WAVE_FORMAT_48S08)
|| (fmt & WAVE_FORMAT_48M16)
|| (fmt & WAVE_FORMAT_48S16)) {
sampleRatez.append(48000);
}
if ((fmt & WAVE_FORMAT_96M08)
|| (fmt & WAVE_FORMAT_96S08)
|| (fmt & WAVE_FORMAT_96M16)
|| (fmt & WAVE_FORMAT_96S16)) {
sampleRatez.append(96000);
}
channelz.append(1);
channelz.append(2);
if (mode == QAudio::AudioOutput) {
channelz.append(4);
channelz.append(6);
channelz.append(8);
}
byteOrderz.append(QAudioFormat::LittleEndian);
typez.append(QAudioFormat::SignedInt);
typez.append(QAudioFormat::UnSignedInt);
codecz.append(QLatin1String("audio/pcm"));
}
if (sampleRatez.count() > 0)
sampleRatez.prepend(8000);
}
QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode)
{
Q_UNUSED(mode)
QList<QByteArray> devices;
//enumerate device fullnames through directshow api
CoInitialize(NULL);
ICreateDevEnum *pDevEnum = NULL;
IEnumMoniker *pEnum = NULL;
// Create the System device enumerator
HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL,
CLSCTX_INPROC_SERVER, IID_ICreateDevEnum,
reinterpret_cast<void **>(&pDevEnum));
unsigned long iNumDevs = mode == QAudio::AudioOutput ? waveOutGetNumDevs() : waveInGetNumDevs();
if (SUCCEEDED(hr)) {
// Create the enumerator for the audio input/output category
if (pDevEnum->CreateClassEnumerator(
mode == QAudio::AudioOutput ? CLSID_AudioRendererCategory : CLSID_AudioInputDeviceCategory,
&pEnum, 0) == S_OK) {
pEnum->Reset();
// go through and find all audio devices
IMoniker *pMoniker = NULL;
while (pEnum->Next(1, &pMoniker, NULL) == S_OK) {
IPropertyBag *pPropBag;
hr = pMoniker->BindToStorage(0,0,IID_IPropertyBag,
reinterpret_cast<void **>(&pPropBag));
if (FAILED(hr)) {
pMoniker->Release();
continue; // skip this one
}
// Find if it is a wave device
VARIANT var;
VariantInit(&var);
hr = pPropBag->Read(mode == QAudio::AudioOutput ? L"WaveOutID" : L"WaveInID", &var, 0);
if (SUCCEEDED(hr)) {
LONG waveID = var.lVal;
if (waveID >= 0 && waveID < LONG(iNumDevs)) {
VariantClear(&var);
// Find the description
hr = pPropBag->Read(L"FriendlyName", &var, 0);
if (SUCCEEDED(hr)) {
QByteArray device;
QDataStream ds(&device, QIODevice::WriteOnly);
ds << quint32(waveID) << QString::fromWCharArray(var.bstrVal);
devices.append(device);
}
}
}
pPropBag->Release();
pMoniker->Release();
}
}
}
CoUninitialize();
return devices;
}
QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()
{
QList<QByteArray> list = availableDevices(QAudio::AudioOutput);
if (list.size() > 0)
return list.at(0);
else
return QByteArray();
}
QByteArray QAudioDeviceInfoInternal::defaultInputDevice()
{
QList<QByteArray> list = availableDevices(QAudio::AudioInput);
if (list.size() > 0)
return list.at(0);
else
return QByteArray();
}
QT_END_NAMESPACE
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