/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** contained in the Technology Preview License Agreement accompanying
** this package.
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** 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
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**
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** rights. These rights are described in the Nokia Qt LGPL Exception
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**
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** $QT_END_LICENSE$
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****************************************************************************/
#include <dshow.h>
#include <initguid.h>
#include <qnetwork.h>
#include "directshowmetadatacontrol.h"
#include "directshowplayerservice.h"
#include <QtCore/qcoreapplication.h>
#ifndef QT_NO_WMSDK
namespace
{
struct QWMMetaDataKeyLookup
{
QtMedia::MetaData key;
const wchar_t *token;
};
}
static const QWMMetaDataKeyLookup qt_wmMetaDataKeys[] =
{
{ QtMedia::Title, L"Title" },
{ QtMedia::SubTitle, L"WM/SubTitle" },
{ QtMedia::Author, L"Author" },
{ QtMedia::Comment, L"Comment" },
{ QtMedia::Description, L"Description" },
{ QtMedia::Category, L"WM/Category" },
{ QtMedia::Genre, L"WM/Genre" },
//{ QtMedia::Date, 0 },
{ QtMedia::Year, L"WM/Year" },
{ QtMedia::UserRating, L"UserRating" },
//{ QtMedia::MetaDatawords, 0 },
{ QtMedia::Language, L"Language" },
{ QtMedia::Publisher, L"WM/Publisher" },
{ QtMedia::Copyright, L"Copyright" },
{ QtMedia::ParentalRating, L"ParentalRating" },
{ QtMedia::RatingOrganisation, L"RatingOrganisation" },
// Media
{ QtMedia::Size, L"FileSize" },
{ QtMedia::MediaType, L"MediaType" },
{ QtMedia::Duration, L"Duration" },
// Audio
{ QtMedia::AudioBitRate, L"AudioBitRate" },
{ QtMedia::AudioCodec, L"AudioCodec" },
{ QtMedia::ChannelCount, L"ChannelCount" },
{ QtMedia::SampleRate, L"Frequency" },
// Music
{ QtMedia::AlbumTitle, L"WM/AlbumTitle" },
{ QtMedia::AlbumArtist, L"WM/AlbumArtist" },
{ QtMedia::ContributingArtist, L"Author" },
{ QtMedia::Composer, L"WM/Composer" },
{ QtMedia::Conductor, L"WM/Conductor" },
{ QtMedia::Lyrics, L"WM/Lyrics" },
{ QtMedia::Mood, L"WM/Mood" },
{ QtMedia::TrackNumber, L"WM/TrackNumber" },
//{ QtMedia::TrackCount, 0 },
//{ QtMedia::CoverArtUriSmall, 0 },
//{ QtMedia::CoverArtUriLarge, 0 },
// Image/Video
//{ QtMedia::Resolution, 0 },
//{ QtMedia::PixelAspectRatio, 0 },
// Video
//{ QtMedia::FrameRate, 0 },
{ QtMedia::VideoBitRate, L"VideoBitRate" },
{ QtMedia::VideoCodec, L"VideoCodec" },
//{ QtMedia::PosterUri, 0 },
// Movie
{ QtMedia::ChapterNumber, L"ChapterNumber" },
{ QtMedia::Director, L"WM/Director" },
{ QtMedia::LeadPerformer, L"LeadPerformer" },
{ QtMedia::Writer, L"WM/Writer" },
// Photos
{ QtMedia::CameraManufacturer, L"CameraManufacturer" },
{ QtMedia::CameraModel, L"CameraModel" },
{ QtMedia::Event, L"Event" },
{ QtMedia::Subject, L"Subject" }
};
static QVariant getValue(IWMHeaderInfo *header, const wchar_t *key)
{
WORD streamNumber = 0;
WMT_ATTR_DATATYPE type = WMT_TYPE_DWORD;
WORD size = 0;
if (header->GetAttributeByName(&streamNumber, key, &type, 0, &size) == S_OK) {
switch (type) {
case WMT_TYPE_DWORD:
if (size == sizeof(DWORD)) {
DWORD word;
if (header->GetAttributeByName(
&streamNumber,
key,
&type,
reinterpret_cast<BYTE *>(&word),
&size) == S_OK) {
return int(word);
}
}
break;
case WMT_TYPE_STRING:
{
QString string;
string.resize(size / 2 - 1);
if (header->GetAttributeByName(
&streamNumber,
key,
&type,
reinterpret_cast<BYTE *>(const_cast<ushort *>(string.utf16())),
&size) == S_OK) {
return string;
}
}
break;
case WMT_TYPE_BINARY:
{
QByteArray bytes;
bytes.resize(size);
if (header->GetAttributeByName(
&streamNumber,
key,
&type,
reinterpret_cast<BYTE *>(bytes.data()),
&size) == S_OK) {
return bytes;
}
}
break;
case WMT_TYPE_BOOL:
if (size == sizeof(DWORD)) {
DWORD word;
if (header->GetAttributeByName(
&streamNumber,
key,
&type,
reinterpret_cast<BYTE *>(&word),
&size) == S_OK) {
return bool(word);
}
}
break;
case WMT_TYPE_QWORD:
if (size == sizeof(QWORD)) {
QWORD word;
if (header->GetAttributeByName(
&streamNumber,
key,
&type,
reinterpret_cast<BYTE *>(&word),
&size) == S_OK) {
return qint64(word);
}
}
break;
case WMT_TYPE_WORD:
if (size == sizeof(WORD)){
WORD word;
if (header->GetAttributeByName(
&streamNumber,
key,
&type,
reinterpret_cast<BYTE *>(&word),
&size) == S_OK) {
return short(word);
}
}
break;
case WMT_TYPE_GUID:
if (size == 16) {
}
break;
default:
break;
}
}
return QVariant();
}
#endif
DirectShowMetaDataControl::DirectShowMetaDataControl(QObject *parent)
: QMetaDataControl(parent)
, m_content(0)
#ifndef QT_NO_WMSDK
, m_headerInfo(0)
#endif
{
}
DirectShowMetaDataControl::~DirectShowMetaDataControl()
{
}
bool DirectShowMetaDataControl::isWritable() const
{
return false;
}
bool DirectShowMetaDataControl::isMetaDataAvailable() const
{
#ifndef QT_NO_WMSDK
return m_content || m_headerInfo;
#else
return m_content;
#endif
}
QVariant DirectShowMetaDataControl::metaData(QtMedia::MetaData key) const
{
QVariant value;
#ifndef QT_NO_WMSDK
if (m_headerInfo) {
static const int count = sizeof(qt_wmMetaDataKeys) / sizeof(QWMMetaDataKeyLookup);
for (int i = 0; i < count; ++i) {
if (qt_wmMetaDataKeys[i].key == key) {
value = getValue(m_headerInfo, qt_wmMetaDataKeys[i].token);
break;
}
}
} else if (m_content) {
#else
if (m_content) {
#endif
BSTR string = 0;
switch (key) {
case QtMedia::Author:
m_content->get_AuthorName(&string);
break;
case QtMedia::Title:
m_content->get_Title(&string);
break;
case QtMedia::ParentalRating:
m_content->get_Rating(&string);
break;
case QtMedia::Description:
m_content->get_Description(&string);
break;
case QtMedia::Copyright:
m_content->get_Copyright(&string);
break;
default:
break;
}
if (string) {
value = QString::fromUtf16(reinterpret_cast<ushort *>(string), ::SysStringLen(string));
::SysFreeString(string);
}
}
return value;
}
void DirectShowMetaDataControl::setMetaData(QtMedia::MetaData, const QVariant &)
{
}
QList<QtMedia::MetaData> DirectShowMetaDataControl::availableMetaData() const
{
return QList<QtMedia::MetaData>();
}
QVariant DirectShowMetaDataControl::extendedMetaData(const QString &) const
{
return QVariant();
}
void DirectShowMetaDataControl::setExtendedMetaData(const QString &, const QVariant &)
{
}
QStringList DirectShowMetaDataControl::availableExtendedMetaData() const
{
return QStringList();
}
void DirectShowMetaDataControl::updateGraph(IFilterGraph2 *graph, IBaseFilter *source)
{
if (m_content)
m_content->Release();
if (!graph || graph->QueryInterface(
IID_IAMMediaContent, reinterpret_cast<void **>(&m_content)) != S_OK) {
m_content = 0;
}
#ifdef QT_NO_WMSDK
Q_UNUSED(source);
#else
if (m_headerInfo)
m_headerInfo->Release();
m_headerInfo = com_cast<IWMHeaderInfo>(source, IID_IWMHeaderInfo);
#endif
// DirectShowMediaPlayerService holds a lock at this point so defer emitting signals to a later
// time.
QCoreApplication::postEvent(this, new QEvent(QEvent::Type(MetaDataChanged)));
}
void DirectShowMetaDataControl::customEvent(QEvent *event)
{
if (event->type() == QEvent::Type(MetaDataChanged)) {
event->accept();
emit metaDataChanged();
#ifndef QT_NO_WMSDK
emit metaDataAvailableChanged(m_content || m_headerInfo);
#else
emit metaDataAvailableChanged(m_content);
#endif
} else {
QMetaDataControl::customEvent(event);
}
}