8b1ee17240
Change-Id: I623b42d5f4f565ee7cf2d064e52609a99636bd6a Reviewed-by: Jani Heikkinen <jani.heikkinen@theqtcompany.com>
112 lines
3.9 KiB
Plaintext
112 lines
3.9 KiB
Plaintext
Qt 5.4 introduces many new features and improvements as well as bugfixes
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over the 5.3.x series. For more details, refer to the online documentation
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included in this distribution. The documentation is also available online:
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http://qt-project.org/doc/qt-5.4
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The Qt version 5.4 series is binary compatible with the 5.3.x series.
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Applications compiled for 5.3 will continue to run with 5.4.
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Some of the changes listed in this file include issue tracking numbers
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corresponding to tasks in the Qt Bug Tracker:
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http://bugreports.qt-project.org/
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Each of these identifiers can be entered in the bug tracker to obtain more
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information about a particular change.
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****************************************************************************
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* Important Behavior Changes *
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****************************************************************************
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- Using QAudioOutput and QSoundEffect with the PulseAudio backend won't
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cause the system volume to be automatically changed to the maximum value
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anymore. Audio streams will now respect the system-wide volume unless
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explicitly set with setVolume().
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- On Linux, both Alsa and PulseAudio backends are now present. PulseAudio
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is used by default if available on the system and if the server is
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running, otherwise Alsa is used instead.
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****************************************************************************
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* Library *
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****************************************************************************
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QtMultimedia
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------------
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- Added new QAbstractPlanarVideoBuffer class.
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- Camera (QML):
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* Added deviceId, displayName, position, orientation, metadata,
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viewfinder.resolution, viewfinder.minimumFrameRate and
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viewfinder.maximumFrameRate properties.
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* Camera device can be selected by setting the deviceId or position
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properties.
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*
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- QtMultimedia global QML object:
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* Added defaultCamera and availableCameras properties.
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- QAbstractVideoBuffer:
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* Added mapPlanes() function.
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- QVideoFrame:
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* Added support for planar video formats. New planeCount(),
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bytesPerLine(int plane) and bits(int plane) functions.
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- [QTBUG-40515] Improved PLS parser. It is now more permissive, allowing
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to load virtually any kind of PLS file. It also correctly resolve
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relative paths.
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****************************************************************************
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* Platform Specific Changes *
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****************************************************************************
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Android
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-------
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- Changing a media player's position after reaching the end of a media
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now correctly works.
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- [QTBUG-40314] Fixed playing a QMediaPlaylit with a QMediaPlayer.
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Linux
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-----
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- Added support for QCameraInfo::position() and QCameraInfo::orientation().
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- Added support for QCameraFocus::customFocusPoint.
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- QMediaRecorder::duration() now returns the correct value when recording
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with a camera source.
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- QMediaMetaData::ContributingArtist and QMediaMetaData::AlbumArtist
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now map to the correct metadata.
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- Fixed QMediaPlayer's metaDataAvailableChanged() signal, which was never
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emitted.
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OS X
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----
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- OS X 10.6 not being supported anymore, the QuickTime backend has been
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removed.
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QNX
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---
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- [QTBUG-40746] Fixed crash when detroying a QML VideoOutput or Video item.
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Windows
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-------
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- [QTBUG-32481] Fixed various memory leaks when using a media player.
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- [QTBUG-39980] Fixed crash occasionally happening when playing and
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stopping repeatedly a media with QMediaPlayer.
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- [QTBUG-40954] Buffers retrieved with QAudioProbe now have a correct
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startTime().
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- [QTBUG-41158] Fixed crash occasionally happening when destroying a
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QML MediaPlayer.
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WinRT
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-----
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- Enabled media player support for WinRT.
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- Enabled basic camera support for WinRT (viewfinder, still image capture
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and camera device selection).
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