Qt 5.15.1 is a bug-fix release. It maintains both forward and backward
compatibility (source and binary) with Qt 5.15.0.

For more details, refer to the online documentation included in this
distribution. The documentation is also available online:

https://doc.qt.io/qt-5/index.html

The Qt version 5.15 series is binary compatible with the 5.14.x series.
Applications compiled for 5.14 will continue to run with 5.15.

Some of the changes listed in this file include issue tracking numbers
corresponding to tasks in the Qt Bug Tracker:

https://bugreports.qt.io/

Each of these identifiers can be entered in the bug tracker to obtain more
information about a particular change.

****************************************************************************
*                            Qt 5.15.1 Changes                             *
****************************************************************************

- [QTBUG-85202] QMemoryVideoBuffer is not mapped when there is no data inside.
- [QTBUG-52455] QVideoSurfaceFormat::Format_Y8 is mapped to QImage::Format_Grayscale8.

****************************************************************************
*                        Platform Specific Changes                         *
****************************************************************************

- AVFoundation:
  * Fixed playback of files with spaces in their names.
  * [QTBUG-83776] If just list of devices are requested,
    audio session categories are not applied.

- GStreamer:
  * [QTBUG-85545] Fixed to update a render rect only for glimagesink.
  * [QTBUG-84556] Fixed regression where the playback did not start
    after data is buffered.
  * [QTBUG-83663] Removed a dependency to gstreamer_imxcommon.
  * [QTBUG-76179] Introduced QT_GSTREAMER_PLAYBIN_CONVERT to inject
    a converter in playbin.
  * Fixed to keep only one frame in vivante video node for iMX devices.
    This fixes jerky playback when frames are not coming at constant rate.
  * [QTBUG-83945] Fixed reverse playback.
