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From ed61f1d932c5c6d38458fcd2e1d5d154383f017e Mon Sep 17 00:00:00 2001
From: Tasuku Suzuki <tasuku.suzuki@qt.io>
Date: Mon, 12 Dec 2016 16:32:47 +0900
Subject: [PATCH] metadata image support with the "data" URL scheme for QtQuick
add posterImage, coverArtImage and thumbnailImage to metadata
Change-Id: I10b9bae10c219ffa41506d6e6b345020790217a6
---
.../multimedia/qdeclarativemediametadata_p.h | 33 ++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/src/imports/multimedia/qdeclarativemediametadata_p.h b/src/imports/multimedia/qdeclarativemediametadata_p.h
index ede7f87..6a6a815 100644
--- a/src/imports/multimedia/qdeclarativemediametadata_p.h
+++ b/src/imports/multimedia/qdeclarativemediametadata_p.h
@@ -51,6 +51,9 @@
// We mean it.
//
+#include <QtCore/QBuffer>
+#include <QtGui/QImage>
+#include <QtGui/QImageWriter>
#include <QtQml/qqml.h>
#include <QtMultimedia/qmediametadata.h>
#include <QtMultimedia/qmediaservice.h>
@@ -153,6 +156,9 @@ class QDeclarativeMediaMetaData : public QObject
Q_PROPERTY(QVariant gpsProcessingMethod READ gpsProcessingMethod WRITE setGPSProcessingMethod NOTIFY metaDataChanged)
Q_PROPERTY(QVariant gpsAreaInformation READ gpsAreaInformation WRITE setGPSAreaInformation NOTIFY metaDataChanged)
+ Q_PROPERTY(QVariant posterImage READ posterImage NOTIFY metaDataChanged)
+ Q_PROPERTY(QVariant coverArtImage READ coverArtImage NOTIFY metaDataChanged)
+ Q_PROPERTY(QVariant thumbnailImage READ thumbnailImage NOTIFY metaDataChanged)
public:
QDeclarativeMediaMetaData(QMediaObject *player, QObject *parent = 0)
: QObject(parent)
@@ -425,6 +431,16 @@ QT_WARNING_POP
void setGPSAreaInformation(const QVariant &information) {
setMetaData(QMediaMetaData::GPSAreaInformation, information); }
+ QVariant posterImage() const {
+ return convertImageToUrl(m_mediaObject->metaData(QMediaMetaData::PosterImage));
+ }
+ QVariant coverArtImage() const {
+ return convertImageToUrl(m_mediaObject->metaData(QMediaMetaData::CoverArtImage));
+ }
+ QVariant thumbnailImage() const {
+ return convertImageToUrl(m_mediaObject->metaData(QMediaMetaData::ThumbnailImage));
+ }
+
Q_SIGNALS:
void metaDataChanged();
@@ -440,6 +456,23 @@ private:
m_writerControl->setMetaData(key, value);
}
+ QUrl convertImageToUrl(const QVariant &variant) const
+ {
+ if (variant.type() != QVariant::Image)
+ return QUrl();
+
+ QImage image = variant.value<QImage>();
+ QByteArray data;
+ QBuffer buffer(&data);
+ buffer.open(QBuffer::WriteOnly);
+ QImageWriter png(&buffer, "png");
+ if (!png.write(image)) {
+ return QUrl();
+ }
+ buffer.close();
+ return QUrl(QStringLiteral("data:image/png;base64,") + data.toBase64());
+ }
+
QMediaObject *m_mediaObject;
QMetaDataWriterControl *m_writerControl;
bool m_requestedWriterControl;
--
2.7.4
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