slapin/qtmultimedia
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Added support for big endian data to QAudioOutput win32 backend.

Browse Source 
Convert data from big endian to little endian.
QTBUG-19881

Change-Id: If62a69b79c01d66536010b3326a86df8ca5f83b0
Reviewed-by: Ling Hu <ling.hu@nokia.com>
This commit is contained in:
Lev Zelenskiy
2012-06-26 14:03:54 +10:00
committed by Qt by Nokia
parent 1cf5f3e729
commit 4ebedcd158
1 changed files with 25 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
src/multimedia/audio/qaudiooutput_win32_p.cpp
View File

@@ -51,6 +51,7 @@
// //
#include "qaudiooutput_win32_p.h" #include "qaudiooutput_win32_p.h"
#include <QtEndian>
#ifndef SPEAKER_FRONT_LEFT #ifndef SPEAKER_FRONT_LEFT
#define SPEAKER_FRONT_LEFT 0x00000001 #define SPEAKER_FRONT_LEFT 0x00000001
@@ -466,6 +467,30 @@ qint64 QAudioOutputPrivate::write( const char *data, qint64 len )
char* p = (char*)data; char* p = (char*)data;
int l = (int)len; int l = (int)len;
QByteArray reverse;
if (settings.byteOrder() == QAudioFormat::BigEndian) {
switch (settings.sampleSize()) {
case 8:
// No need to convert
break;
case 16:
reverse.resize(l);
for (qint64 i = 0; i < (l >> 1); i++)
*((qint16*)reverse.data() + i) = qFromBigEndian(*((qint16*)data + i));
p = reverse.data();
break;
case 32:
reverse.resize(l);
for (qint64 i = 0; i < (l >> 2); i++)
*((qint32*)reverse.data() + i) = qFromBigEndian(*((qint32*)data + i));
p = reverse.data();
break;
}
}
WAVEHDR* current; WAVEHDR* current;
int remain; int remain;
current = &waveBlocks[waveCurrentBlock]; current = &waveBlocks[waveCurrentBlock];