| Qt 5.5 introduces many new features and improvements as well as bugfixes |
| over the 5.4.x series. For more details, refer to the online documentation |
| included in this distribution. The documentation is also available online: |
| |
| http://doc.qt.io/qt-5.5 |
| |
| The Qt version 5.5 series is binary compatible with the 5.4.x series. |
| Applications compiled for 5.4 will continue to run with 5.5. |
| |
| Some of the changes listed in this file include issue tracking numbers |
| corresponding to tasks in the Qt Bug Tracker: |
| |
| http://bugreports.qt.io/ |
| |
| Each of these identifiers can be entered in the bug tracker to obtain more |
| information about a particular change. |
| |
| **************************************************************************** |
| * Library * |
| **************************************************************************** |
| |
| QtMultimedia |
| ------------ |
| |
| - Added QAbstractVideoFilter that serves as a base class for QML |
| video filtering elements that integrate compute, vision, and image |
| processing frameworks with VideoOutput. |
| - Added new QCameraViewfinderSettings class. |
| - [QTBUG-40571] Fixed memory leak in QAudioDecoder. |
| |
| - Camera (QML): |
| * Added imageProcessing.colorFilter, viewfinder.minimumFrameRate and |
| viewfinder.maximumFrameRate properties. |
| * Added new supportedViewfinderResolutions() and |
| supportedViewfinderFrameRateRanges() methods. |
| * Exposure modes extended to support Action, Landscape, NightPortrait, |
| Theatre, Sunset, SteadyPhoto, Fireworks, Party, Candlelight, and |
| Barcode modes |
| |
| - QCamera: |
| * Added support for viewfinder settings. In addition to the getter and |
| setter, supportedViewfinderSettings(), |
| supportedViewfinderResolutions(), supportedViewfinderFrameRateRanges() |
| and supportedViewfinderPixelFormats() can be used to query for |
| supported values. |
| * Fixed searchAndLock() and supportedLocks() functions which could not |
| work at all on some platforms. |
| |
| - QCameraExposure: |
| * Exposure modes extended to support Action, Landscape, NightPortrait, |
| Theatre, Sunset, SteadyPhoto, Fireworks, Party, Candlelight, and |
| Barcode modes |
| |
| - QCameraImageProcessing: |
| * Added support for color filters. |
| |
| **************************************************************************** |
| * Platform Specific Changes * |
| **************************************************************************** |
| |
| Android |
| ------- |
| |
| - Added support for additional camera exposure modes (see list in |
| QCameraExposure changes). |
| |
| iOS / OS X |
| ---------- |
| |
| - Improved camera support: |
| * Image capture settings, focus, flash, exposure (iOS only) and |
| zoom (iOS only) APIs are now functional. |
| * QVideoProbe can now be used with a QCamera. |
| |
| - VideoOutput, when used with a MediaPlayer on iOS, can now be displayed |
| under other elements and supports shader effects and advanced |
| transformations. |
| - QMediaRecorder now uses the correct system default audio capture |
| device. |
| - [QTBUG-36175] QMediaPlayer and the QML Audio and Mediaplayer types can |
| now play media files stored in a Qt resource file. |
| - [QTBUG-37655] Fixed video capture on iOS. |
| - [QTBUG-39240] QMediaPlayer and the QML Audio and Mediaplayer types now |
| support volume and mute on iOS 7.0 and later. |
| - [QTBUG-42035] Fixed crash when capturing an image after changing the |
| active camera device. |
| |
| Linux |
| ----- |
| |
| - Added support for GStreamer 1.0. The 0.10 series is still used by default |
| and Qt needs to be configured with '-gstreamer 1.0' to enable 1.0 |
| support. If only GStreamer 1.0 is available on the system, the configure |
| script will automatically configure Qt with GStreamer 1.0 support. |
| - QCamera now supports exposure and white balance locks. |
| - Added support for additional camera exposure modes (see list in |
| QCameraExposure changes). |
| - Fixed QCameraImageCapture::supportedResolutions(), |
| QMediaRecorder::supportedResolutions() and |
| QMediaRecorder::supportedFrameRates() that could return empty lists. |
| - [QTBUG-46169] QVideoWidget now works with any windowing system. It was |
| previously only working with X11. |
| |
| Windows |
| ------- |
| |
| - [QTBUG-45571] QAudioBuffer::startTime() now returns the time in the |
| correct time scale. |
| |
| WinRT |
| ----- |
| |
| - [QTBUG-42263] QMediaPlayer and the QML Audio and Mediaplayer types can |
| now play media files stored in a Qt resource file. |
| - [QTBUG-44838] Fixed camera preview on Lumia 630. |
| - [QTBUG-45920] Fixed camera preview on Lumia 530. |
| - [QTBUG-45667] Fixed crash that could occur when using the camera |
| preview. |