Set correct sample rate and channel count with big endian WAV data

The QWaveDecoder failed to convert sample rate and channel count from
big endian to little endian when populating the QAudioFormat.

This patch fixes this issue, and revives the QWaveDecoder unit tests
from Qt5. Since the QWaveDecoder no longer exposes an API for fetching
endianness of the underlying data, the corresponding tests were removed.
Still, the tests verify correct handling of both big and little endian.

Task-number: QTBUG-122193
Pick-to: 6.7 6.6 6.5
Change-Id: Ia8fe9ab09fa479c3694d827d1505a1616fbacc24
Reviewed-by: Tim Blechmann <tim@klingt.org>
Reviewed-by: Mikko Hallamaa <mikko.hallamaa@qt.io>
Reviewed-by: Artem Dyomin <artem.dyomin@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/multimedia/audio/qwavedecoder.cpp b/src/multimedia/audio/qwavedecoder.cpp
index df5ee32cc..2d2e04e87 100644
--- a/src/multimedia/audio/qwavedecoder.cpp
+++ b/src/multimedia/audio/qwavedecoder.cpp
@@ -373,8 +373,8 @@ void QWaveDecoder::handleData()
             }
 
             format.setSampleFormat(fmt);
-            format.setSampleRate(/*qFromBigEndian<quint32>*/(wave.sampleRate));
-            format.setChannelCount(/*qFromBigEndian<quint16>*/(wave.numChannels));
+            format.setSampleRate(rate);
+            format.setChannelCount(channels);
 
             state = QWaveDecoder::WaitingForDataState;
         }