Add private API for conversion from QVideoFrame to QImage.

The Android plugin had a function to convert from NV21 to RGB32.
It's now moved to the Qt Multimedia library and it supports additional
source formats. It could be further improved with more SIMD code, it
could then become a public API.

Change-Id: Ibee349027048a263a1a7ea74dc51237f7747912c
Reviewed-by: Christian Stromme <christian.stromme@theqtcompany.com>

13 files changed, 905 insertions, 567 deletions

diff --git a/src/multimedia/multimedia.pro b/src/multimedia/multimedia.pro
index 3aff75949..e3f368cf4 100644
--- a/src/multimedia/multimedia.pro
+++ b/src/multimedia/multimedia.pro
@@ -55,6 +55,8 @@ SOURCES += \
     qmediastoragelocation.cpp \
     qmultimedia.cpp
 
+CONFIG += simd optimize_full
+
 include(audio/audio.pri)
 include(camera/camera.pri)
 include(controls/controls.pri)
diff --git a/src/multimedia/video/qvideoframe.cpp b/src/multimedia/video/qvideoframe.cpp
index 4e9e28a4d..f0495577c 100644
--- a/src/multimedia/video/qvideoframe.cpp
+++ b/src/multimedia/video/qvideoframe.cpp
@@ -33,8 +33,10 @@
 
 #include "qvideoframe.h"
 
+#include "qvideoframe_p.h"
 #include "qimagevideobuffer_p.h"
 #include "qmemoryvideobuffer_p.h"
+#include "qvideoframeconversionhelper_p.h"
 
 #include <qimage.h>
 #include <qpair.h>
@@ -654,6 +656,8 @@ bool QVideoFrame::map(QAbstractVideoBuffer::MapMode mode)
         d->data[2] = d->data[1] + (d->bytesPerLine[1] * d->size.height() / 2);
         break;
     }
+    default:
+        break;
     }
 
     d->mappedCount++;
@@ -994,11 +998,133 @@ QImage::Format QVideoFrame::imageFormatFromPixelFormat(PixelFormat format)
     case Format_AdobeDng:
         return QImage::Format_Invalid;
     case Format_User:
+    default:
         return QImage::Format_Invalid;
     }
     return QImage::Format_Invalid;
 }
 
+
+extern void QT_FASTCALL qt_convert_BGRA32_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_BGR24_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_BGR565_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_BGR555_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_AYUV444_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_YUV444_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_YUV420P_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_YV12_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_UYVY_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_YUYV_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_NV12_to_ARGB32(const QVideoFrame&, uchar*);
+extern void QT_FASTCALL qt_convert_NV21_to_ARGB32(const QVideoFrame&, uchar*);
+
+static VideoFrameConvertFunc qConvertFuncs[QVideoFrame::NPixelFormats] = {
+    /* Format_Invalid */                Q_NULLPTR, // Not needed
+    /* Format_ARGB32 */                 Q_NULLPTR, // Not needed
+    /* Format_ARGB32_Premultiplied */   Q_NULLPTR, // Not needed
+    /* Format_RGB32 */                  Q_NULLPTR, // Not needed
+    /* Format_RGB24 */                  Q_NULLPTR, // Not needed
+    /* Format_RGB565 */                 Q_NULLPTR, // Not needed
+    /* Format_RGB555 */                 Q_NULLPTR, // Not needed
+    /* Format_ARGB8565_Premultiplied */ Q_NULLPTR, // Not needed
+    /* Format_BGRA32 */                 qt_convert_BGRA32_to_ARGB32,
+    /* Format_BGRA32_Premultiplied */   qt_convert_BGRA32_to_ARGB32,
+    /* Format_BGR32 */                  qt_convert_BGRA32_to_ARGB32,
+    /* Format_BGR24 */                  qt_convert_BGR24_to_ARGB32,
+    /* Format_BGR565 */                 qt_convert_BGR565_to_ARGB32,
+    /* Format_BGR555 */                 qt_convert_BGR555_to_ARGB32,
+    /* Format_BGRA5658_Premultiplied */ Q_NULLPTR,
+    /* Format_AYUV444 */                qt_convert_AYUV444_to_ARGB32,
+    /* Format_AYUV444_Premultiplied */  Q_NULLPTR,
+    /* Format_YUV444 */                 qt_convert_YUV444_to_ARGB32,
+    /* Format_YUV420P */                qt_convert_YUV420P_to_ARGB32,
+    /* Format_YV12 */                   qt_convert_YV12_to_ARGB32,
+    /* Format_UYVY */                   qt_convert_UYVY_to_ARGB32,
+    /* Format_YUYV */                   qt_convert_YUYV_to_ARGB32,
+    /* Format_NV12 */                   qt_convert_NV12_to_ARGB32,
+    /* Format_NV21 */                   qt_convert_NV21_to_ARGB32,
+    /* Format_IMC1 */                   Q_NULLPTR,
+    /* Format_IMC2 */                   Q_NULLPTR,
+    /* Format_IMC3 */                   Q_NULLPTR,
+    /* Format_IMC4 */                   Q_NULLPTR,
+    /* Format_Y8 */                     Q_NULLPTR,
+    /* Format_Y16 */                    Q_NULLPTR,
+    /* Format_Jpeg */                   Q_NULLPTR, // Not needed
+    /* Format_CameraRaw */              Q_NULLPTR,
+    /* Format_AdobeDng */               Q_NULLPTR
+};
+
+static void qInitConvertFuncsAsm()
+{
+#ifdef QT_COMPILER_SUPPORTS_SSE2
+    extern void QT_FASTCALL qt_convert_BGRA32_to_ARGB32_sse2(const QVideoFrame&, uchar*);
+    if (qCpuHasFeature(SSE2)){
+        qConvertFuncs[QVideoFrame::Format_BGRA32] = qt_convert_BGRA32_to_ARGB32_sse2;
+        qConvertFuncs[QVideoFrame::Format_BGRA32_Premultiplied] = qt_convert_BGRA32_to_ARGB32_sse2;
+        qConvertFuncs[QVideoFrame::Format_BGR32] = qt_convert_BGRA32_to_ARGB32_sse2;
+    }
+#endif
+#ifdef QT_COMPILER_SUPPORTS_SSSE3
+    extern void QT_FASTCALL qt_convert_BGRA32_to_ARGB32_ssse3(const QVideoFrame&, uchar*);
+    if (qCpuHasFeature(SSSE3)){
+        qConvertFuncs[QVideoFrame::Format_BGRA32] = qt_convert_BGRA32_to_ARGB32_ssse3;
+        qConvertFuncs[QVideoFrame::Format_BGRA32_Premultiplied] = qt_convert_BGRA32_to_ARGB32_ssse3;
+        qConvertFuncs[QVideoFrame::Format_BGR32] = qt_convert_BGRA32_to_ARGB32_ssse3;
+    }
+#endif
+#ifdef QT_COMPILER_SUPPORTS_AVX2
+    extern void QT_FASTCALL qt_convert_BGRA32_to_ARGB32_avx2(const QVideoFrame&, uchar*);
+    if (qCpuHasFeature(AVX2)){
+        qConvertFuncs[QVideoFrame::Format_BGRA32] = qt_convert_BGRA32_to_ARGB32_avx2;
+        qConvertFuncs[QVideoFrame::Format_BGRA32_Premultiplied] = qt_convert_BGRA32_to_ARGB32_avx2;
+        qConvertFuncs[QVideoFrame::Format_BGR32] = qt_convert_BGRA32_to_ARGB32_avx2;
+    }
+#endif
+}
+
+/*!
+    \internal
+*/
+QImage qt_imageFromVideoFrame(const QVideoFrame &f)
+{
+    QVideoFrame &frame = const_cast<QVideoFrame&>(f);
+    QImage result;
+
+    if (!frame.isValid() || !frame.map(QAbstractVideoBuffer::ReadOnly))
+        return result;
+
+    // Formats supported by QImage don't need conversion
+    QImage::Format imageFormat = QVideoFrame::imageFormatFromPixelFormat(frame.pixelFormat());
+    if (imageFormat != QImage::Format_Invalid) {
+        result = QImage(frame.bits(), frame.width(), frame.height(), imageFormat).copy();
+    }
+
+    // Load from JPG
+    else if (frame.pixelFormat() == QVideoFrame::Format_Jpeg) {
+        result.loadFromData(frame.bits(), frame.mappedBytes(), "JPG");
+    }
+
+    // Need conversion
+    else {
+        static bool initAsmFuncsDone = false;
+        if (!initAsmFuncsDone) {
+            qInitConvertFuncsAsm();
+            initAsmFuncsDone = true;
+        }
+        VideoFrameConvertFunc convert = qConvertFuncs[frame.pixelFormat()];
+        if (!convert) {
+            qWarning() << Q_FUNC_INFO << ": unsupported pixel format" << frame.pixelFormat();
+        } else {
+            result = QImage(frame.width(), frame.height(), QImage::Format_ARGB32);
+            convert(frame, result.bits());
+        }
+    }
+
+    frame.unmap();
+
+    return result;
+}
+
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, QVideoFrame::PixelFormat pf)
 {
diff --git a/src/multimedia/video/qvideoframe.h b/src/multimedia/video/qvideoframe.h
index a273b7f73..633604ebb 100644
--- a/src/multimedia/video/qvideoframe.h
+++ b/src/multimedia/video/qvideoframe.h
@@ -96,6 +96,9 @@ public:
         Format_CameraRaw,
         Format_AdobeDng,
 
+#ifndef Q_QDOC
+        NPixelFormats,
+#endif
         Format_User = 1000
     };
 
diff --git a/src/multimedia/video/qvideoframe_p.h b/src/multimedia/video/qvideoframe_p.h
new file mode 100644
index 000000000..15260c26f
--- /dev/null
+++ b/src/multimedia/video/qvideoframe_p.h
@@ -0,0 +1,57 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QVIDEOFRAME_P_H
+#define QVIDEOFRAME_P_H
+
+#include <QtMultimedia/qvideoframe.h>
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+QT_BEGIN_NAMESPACE
+
+Q_MULTIMEDIA_EXPORT QImage qt_imageFromVideoFrame(const QVideoFrame &frame);
+
+QT_END_NAMESPACE
+
+#endif // QVIDEOFRAME_P_H
+
diff --git a/src/multimedia/video/qvideoframeconversionhelper.cpp b/src/multimedia/video/qvideoframeconversionhelper.cpp
new file mode 100644
index 000000000..9599b1947
--- /dev/null
+++ b/src/multimedia/video/qvideoframeconversionhelper.cpp
@@ -0,0 +1,348 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvideoframeconversionhelper_p.h"
+
+QT_BEGIN_NAMESPACE
+
+#define CLAMP(n) (n > 255 ? 255 : (n < 0 ? 0 : n))
+
+#define EXPAND_UV(u, v) \
+    int uu = u - 128; \
+    int vv = v - 128; \
+    int rv = 409 * vv + 128; \
+    int guv = 100 * uu + 208 * vv + 128; \
+    int bu = 516 * uu + 128; \
+
+static inline quint32 qYUVToARGB32(int y, int rv, int guv, int bu, int a = 0xff)
+{
+    int yy = (y - 16) * 298;
+    return (a << 24)
+            | CLAMP((yy + rv) >> 8) << 16
+            | CLAMP((yy - guv) >> 8) << 8
+            | CLAMP((yy + bu) >> 8);
+}
+
+static inline void planarYUV420_to_ARGB32(const uchar *y, int yStride,
+                                          const uchar *u, int uStride,
+                                          const uchar *v, int vStride,
+                                          int uvPixelStride,
+                                          quint32 *rgb,
+                                          int width, int height)
+{
+    quint32 *rgb0 = rgb;
+    quint32 *rgb1 = rgb + width;
+
+    for (int j = 0; j < height; j += 2) {
+        const uchar *lineY0 = y;
+        const uchar *lineY1 = y + yStride;
+        const uchar *lineU = u;
+        const uchar *lineV = v;
+
+        for (int i = 0; i < width; i += 2) {
+            EXPAND_UV(*lineU, *lineV);
+            lineU += uvPixelStride;
+            lineV += uvPixelStride;
+
+            *rgb0++ = qYUVToARGB32(*lineY0++, rv, guv, bu);
+            *rgb0++ = qYUVToARGB32(*lineY0++, rv, guv, bu);
+            *rgb1++ = qYUVToARGB32(*lineY1++, rv, guv, bu);
+            *rgb1++ = qYUVToARGB32(*lineY1++, rv, guv, bu);
+        }
+
+        y += yStride << 1; // stride * 2
+        u += uStride;
+        v += vStride;
+        rgb0 += width;
+        rgb1 += width;
+    }
+}
+
+
+
+void QT_FASTCALL qt_convert_YUV420P_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_TRIPLANAR(frame)
+    planarYUV420_to_ARGB32(plane1, plane1Stride,
+                           plane2, plane2Stride,
+                           plane3, plane3Stride,
+                           1,
+                           reinterpret_cast<quint32*>(output),
+                           width, height);
+}
+
+void QT_FASTCALL qt_convert_YV12_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_TRIPLANAR(frame)
+    planarYUV420_to_ARGB32(plane1, plane1Stride,
+                           plane3, plane3Stride,
+                           plane2, plane2Stride,
+                           1,
+                           reinterpret_cast<quint32*>(output),
+                           width, height);
+}
+
+void QT_FASTCALL qt_convert_AYUV444_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 4)
+
+    quint32 *rgb = reinterpret_cast<quint32*>(output);
+
+    for (int i = 0; i < height; ++i) {
+        const uchar *lineSrc = src;
+
+        for (int j = 0; j < width; ++j) {
+            int a = *lineSrc++;
+            int y = *lineSrc++;
+            int u = *lineSrc++;
+            int v = *lineSrc++;
+
+            EXPAND_UV(u, v);
+
+            *rgb++ = qYUVToARGB32(y, rv, guv, bu, a);
+        }
+
+        src += stride;
+    }
+}
+
+void QT_FASTCALL qt_convert_YUV444_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 3)
+
+    quint32 *rgb = reinterpret_cast<quint32*>(output);
+
+    for (int i = 0; i < height; ++i) {
+        const uchar *lineSrc = src;
+
+        for (int j = 0; j < width; ++j) {
+            int y = *lineSrc++;
+            int u = *lineSrc++;
+            int v = *lineSrc++;
+
+            EXPAND_UV(u, v);
+
+            *rgb++ = qYUVToARGB32(y, rv, guv, bu);
+        }
+
+        src += stride;
+    }
+}
+
+void QT_FASTCALL qt_convert_UYVY_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 2)
+
+    quint32 *rgb = reinterpret_cast<quint32*>(output);
+
+    for (int i = 0; i < height; ++i) {
+        const uchar *lineSrc = src;
+
+        for (int j = 0; j < width; j += 2) {
+            int u = *lineSrc++;
+            int y0 = *lineSrc++;
+            int v = *lineSrc++;
+            int y1 = *lineSrc++;
+
+            EXPAND_UV(u, v);
+
+            *rgb++ = qYUVToARGB32(y0, rv, guv, bu);
+            *rgb++ = qYUVToARGB32(y1, rv, guv, bu);
+        }
+
+        src += stride;
+    }
+}
+
+void QT_FASTCALL qt_convert_YUYV_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 2)
+
+    quint32 *rgb = reinterpret_cast<quint32*>(output);
+
+    for (int i = 0; i < height; ++i) {
+        const uchar *lineSrc = src;
+
+        for (int j = 0; j < width; j += 2) {
+            int y0 = *lineSrc++;
+            int u = *lineSrc++;
+            int y1 = *lineSrc++;
+            int v = *lineSrc++;
+
+            EXPAND_UV(u, v);
+
+            *rgb++ = qYUVToARGB32(y0, rv, guv, bu);
+            *rgb++ = qYUVToARGB32(y1, rv, guv, bu);
+        }
+
+        src += stride;
+    }
+}
+
+void QT_FASTCALL qt_convert_NV12_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_BIPLANAR(frame)
+    planarYUV420_to_ARGB32(plane1, plane1Stride,
+                           plane2, plane2Stride,
+                           plane2 + 1, plane2Stride,
+                           2,
+                           reinterpret_cast<quint32*>(output),
+                           width, height);
+}
+
+void QT_FASTCALL qt_convert_NV21_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_BIPLANAR(frame)
+    planarYUV420_to_ARGB32(plane1, plane1Stride,
+                           plane2 + 1, plane2Stride,
+                           plane2, plane2Stride,
+                           2,
+                           reinterpret_cast<quint32*>(output),
+                           width, height);
+}
+
+void QT_FASTCALL qt_convert_BGRA32_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 4)
+
+    quint32 *argb = reinterpret_cast<quint32*>(output);
+
+    for (int y = 0; y < height; ++y) {
+        const quint32 *bgra = reinterpret_cast<const quint32*>(src);
+
+        int x = 0;
+        for (; x < width - 3; x += 4) {
+            *argb++ = qConvertBGRA32ToARGB32(*bgra++);
+            *argb++ = qConvertBGRA32ToARGB32(*bgra++);
+            *argb++ = qConvertBGRA32ToARGB32(*bgra++);
+            *argb++ = qConvertBGRA32ToARGB32(*bgra++);
+        }
+
+        // leftovers
+        for (; x < width; ++x)
+            *argb++ = qConvertBGRA32ToARGB32(*bgra++);
+
+        src += stride;
+    }
+}
+
+void QT_FASTCALL qt_convert_BGR24_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 3)
+
+    quint32 *argb = reinterpret_cast<quint32*>(output);
+
+    for (int y = 0; y < height; ++y) {
+        const uchar *bgr = src;
+
+        int x = 0;
+        for (; x < width - 3; x += 4) {
+            *argb++ = qConvertBGR24ToARGB32(bgr);
+            bgr += 3;
+            *argb++ = qConvertBGR24ToARGB32(bgr);
+            bgr += 3;
+            *argb++ = qConvertBGR24ToARGB32(bgr);
+            bgr += 3;
+            *argb++ = qConvertBGR24ToARGB32(bgr);
+            bgr += 3;
+        }
+
+        // leftovers
+        for (; x < width; ++x) {
+            *argb++ = qConvertBGR24ToARGB32(bgr);
+            bgr += 3;
+        }
+
+        src += stride;
+    }
+}
+
+void QT_FASTCALL qt_convert_BGR565_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 2)
+
+    quint32 *argb = reinterpret_cast<quint32*>(output);
+
+    for (int y = 0; y < height; ++y) {
+        const quint16 *bgr = reinterpret_cast<const quint16*>(src);
+
+        int x = 0;
+        for (; x < width - 3; x += 4) {
+            *argb++ = qConvertBGR565ToARGB32(*bgr++);
+            *argb++ = qConvertBGR565ToARGB32(*bgr++);
+            *argb++ = qConvertBGR565ToARGB32(*bgr++);
+            *argb++ = qConvertBGR565ToARGB32(*bgr++);
+        }
+
+        // leftovers
+        for (; x < width; ++x)
+            *argb++ = qConvertBGR565ToARGB32(*bgr++);
+
+        src += stride;
+    }
+}
+
+void QT_FASTCALL qt_convert_BGR555_to_ARGB32(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 2)
+
+    quint32 *argb = reinterpret_cast<quint32*>(output);
+
+    for (int y = 0; y < height; ++y) {
+        const quint16 *bgr = reinterpret_cast<const quint16*>(src);
+
+        int x = 0;
+        for (; x < width - 3; x += 4) {
+            *argb++ = qConvertBGR555ToARGB32(*bgr++);
+            *argb++ = qConvertBGR555ToARGB32(*bgr++);
+            *argb++ = qConvertBGR555ToARGB32(*bgr++);
+            *argb++ = qConvertBGR555ToARGB32(*bgr++);
+        }
+
+        // leftovers
+        for (; x < width; ++x)
+            *argb++ = qConvertBGR555ToARGB32(*bgr++);
+
+        src += stride;
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/src/multimedia/video/qvideoframeconversionhelper_avx2.cpp b/src/multimedia/video/qvideoframeconversionhelper_avx2.cpp
new file mode 100644
index 000000000..c769c8868
--- /dev/null
+++ b/src/multimedia/video/qvideoframeconversionhelper_avx2.cpp
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvideoframeconversionhelper_p.h"
+
+#ifdef QT_COMPILER_SUPPORTS_AVX2
+
+QT_BEGIN_NAMESPACE
+
+void QT_FASTCALL qt_convert_BGRA32_to_ARGB32_avx2(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 4)
+    quint32 *argb = reinterpret_cast<quint32*>(output);
+
+    const __m256i shuffleMask = _mm256_set_epi8(12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3,
+                                                12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3);
+
+    for (int y = 0; y < height; ++y) {
+        const quint32 *bgra = reinterpret_cast<const quint32*>(src);
+
+        int x = 0;
+        ALIGN(32, argb, x, width) {
+            *argb = qConvertBGRA32ToARGB32(*bgra);
+            ++bgra;
+            ++argb;
+        }
+
+        for (; x < width - 15; x += 16) {
+            __m256i pixelData = _mm256_loadu_si256(reinterpret_cast<const __m256i*>(bgra));
+            __m256i pixelData2 = _mm256_loadu_si256(reinterpret_cast<const __m256i*>(bgra + 8));
+            bgra += 16;
+            pixelData = _mm256_shuffle_epi8(pixelData, shuffleMask);
+            pixelData2 = _mm256_shuffle_epi8(pixelData2, shuffleMask);
+            _mm256_store_si256(reinterpret_cast<__m256i*>(argb), pixelData);
+            _mm256_store_si256(reinterpret_cast<__m256i*>(argb + 8), pixelData2);
+            argb += 16;
+        }
+
+        // leftovers
+        for (; x < width; ++x) {
+            *argb = qConvertBGRA32ToARGB32(*bgra);
+            ++bgra;
+            ++argb;
+        }
+
+        src += stride;
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimedia/video/qvideoframeconversionhelper_p.h b/src/multimedia/video/qvideoframeconversionhelper_p.h
new file mode 100644
index 000000000..eead17a91
--- /dev/null
+++ b/src/multimedia/video/qvideoframeconversionhelper_p.h
@@ -0,0 +1,106 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QVIDEOFRAMECONVERSIONHELPER_P_H
+#define QVIDEOFRAMECONVERSIONHELPER_P_H
+
+#include <qvideoframe.h>
+#include <private/qsimd_p.h>
+
+typedef void (QT_FASTCALL *VideoFrameConvertFunc)(const QVideoFrame &frame, uchar *output);
+
+inline quint32 qConvertBGRA32ToARGB32(quint32 bgra)
+{
+    return (((bgra & 0xFF000000) >> 24)
+            | ((bgra & 0x00FF0000) >> 8)
+            | ((bgra & 0x0000FF00) << 8)
+            | ((bgra & 0x000000FF) << 24));
+}
+
+inline quint32 qConvertBGR24ToARGB32(const uchar *bgr)
+{
+    return 0xFF000000 | bgr[0] | bgr[1] << 8 | bgr[2] << 16;
+}
+
+inline quint32 qConvertBGR565ToARGB32(quint16 bgr)
+{
+    return 0xff000000
+            | ((((bgr) >> 8) & 0xf8) | (((bgr) >> 13) & 0x7))
+            | ((((bgr) << 5) & 0xfc00) | (((bgr) >> 1) & 0x300))
+            | ((((bgr) << 19) & 0xf80000) | (((bgr) << 14) & 0x70000));
+}
+
+inline quint32 qConvertBGR555ToARGB32(quint16 bgr)
+{
+    return 0xff000000
+            | ((((bgr) >> 7) & 0xf8) | (((bgr) >> 12) & 0x7))
+            | ((((bgr) << 6) & 0xf800) | (((bgr) << 1) & 0x700))
+            | ((((bgr) << 19) & 0xf80000) | (((bgr) << 11) & 0x70000));
+}
+
+#define FETCH_INFO_PACKED(frame) \
+    const uchar *src = frame.bits(); \
+    int stride = frame.bytesPerLine(); \
+    int width = frame.width(); \
+    int height = frame.height();
+
+#define FETCH_INFO_BIPLANAR(frame) \
+    const uchar *plane1 = frame.bits(0); \
+    const uchar *plane2 = frame.bits(1); \
+    int plane1Stride = frame.bytesPerLine(0); \
+    int plane2Stride = frame.bytesPerLine(1); \
+    int width = frame.width(); \
+    int height = frame.height();
+
+#define FETCH_INFO_TRIPLANAR(frame) \
+    const uchar *plane1 = frame.bits(0); \
+    const uchar *plane2 = frame.bits(1); \
+    const uchar *plane3 = frame.bits(2); \
+    int plane1Stride = frame.bytesPerLine(0); \
+    int plane2Stride = frame.bytesPerLine(1); \
+    int plane3Stride = frame.bytesPerLine(2); \
+    int width = frame.width(); \
+    int height = frame.height(); \
+
+#define MERGE_LOOPS(width, height, stride, bpp) \
+    if (stride == width * bpp) { \
+        width *= height; \
+        height = 1; \
+        stride = 0; \
+    }
+
+#define ALIGN(boundary, ptr, x, length) \
+    for (; ((reinterpret_cast<qintptr>(ptr) & (boundary - 1)) != 0) && x < length; ++x)
+
+#endif // QVIDEOFRAMECONVERSIONHELPER_P_H
+
diff --git a/src/multimedia/video/qvideoframeconversionhelper_sse2.cpp b/src/multimedia/video/qvideoframeconversionhelper_sse2.cpp
new file mode 100644
index 000000000..27689e5bb
--- /dev/null
+++ b/src/multimedia/video/qvideoframeconversionhelper_sse2.cpp
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvideoframeconversionhelper_p.h"
+
+#ifdef QT_COMPILER_SUPPORTS_SSE2
+
+QT_BEGIN_NAMESPACE
+
+void QT_FASTCALL qt_convert_BGRA32_to_ARGB32_sse2(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 4)
+    quint32 *argb = reinterpret_cast<quint32*>(output);
+
+    const __m128i zero = _mm_setzero_si128();
+
+    for (int y = 0; y < height; ++y) {
+        const quint32 *bgra = reinterpret_cast<const quint32*>(src);
+
+        int x = 0;
+        ALIGN(16, argb, x, width) {
+            *argb = qConvertBGRA32ToARGB32(*bgra);
+            ++bgra;
+            ++argb;
+        }
+
+        for (; x < width - 3; x += 4) {
+            __m128i pixelData = _mm_loadu_si128(reinterpret_cast<const __m128i*>(bgra));
+            bgra += 4;
+            __m128i gaComponents = _mm_unpacklo_epi8(pixelData, zero);
+            __m128i brComponents = _mm_unpackhi_epi8(pixelData, zero);
+            gaComponents = _mm_shufflelo_epi16(_mm_shufflehi_epi16(gaComponents, _MM_SHUFFLE(0, 1, 2, 3)), _MM_SHUFFLE(0, 1, 2, 3)); // swap GA
+            brComponents = _mm_shufflelo_epi16(_mm_shufflehi_epi16(brComponents, _MM_SHUFFLE(0, 1, 2, 3)), _MM_SHUFFLE(0, 1, 2, 3)); // swap BR
+            pixelData = _mm_packus_epi16(gaComponents, brComponents);
+            _mm_store_si128(reinterpret_cast<__m128i*>(argb), pixelData);
+            argb += 4;
+        }
+
+        // leftovers
+        for (; x < width; ++x) {
+            *argb = qConvertBGRA32ToARGB32(*bgra);
+            ++bgra;
+            ++argb;
+        }
+
+        src += stride;
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimedia/video/qvideoframeconversionhelper_ssse3.cpp b/src/multimedia/video/qvideoframeconversionhelper_ssse3.cpp
new file mode 100644
index 000000000..b15617cef
--- /dev/null
+++ b/src/multimedia/video/qvideoframeconversionhelper_ssse3.cpp
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvideoframeconversionhelper_p.h"
+
+#ifdef QT_COMPILER_SUPPORTS_SSSE3
+
+QT_BEGIN_NAMESPACE
+
+void QT_FASTCALL qt_convert_BGRA32_to_ARGB32_ssse3(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 4)
+    quint32 *argb = reinterpret_cast<quint32*>(output);
+
+    __m128i shuffleMask = _mm_set_epi8(12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3);
+
+    for (int y = 0; y < height; ++y) {
+        const quint32 *bgra = reinterpret_cast<const quint32*>(src);
+
+        int x = 0;
+        ALIGN(16, argb, x, width) {
+            *argb = qConvertBGRA32ToARGB32(*bgra);
+            ++bgra;
+            ++argb;
+        }
+
+        for (; x < width - 7; x += 8) {
+            __m128i pixelData = _mm_loadu_si128(reinterpret_cast<const __m128i*>(bgra));
+            __m128i pixelData2 = _mm_loadu_si128(reinterpret_cast<const __m128i*>(bgra + 4));
+            bgra += 8;
+            pixelData = _mm_shuffle_epi8(pixelData, shuffleMask);
+            pixelData2 = _mm_shuffle_epi8(pixelData2, shuffleMask);
+            _mm_store_si128(reinterpret_cast<__m128i*>(argb), pixelData);
+            _mm_store_si128(reinterpret_cast<__m128i*>(argb + 4), pixelData2);
+            argb += 8;
+        }
+
+        // leftovers
+        for (; x < width; ++x) {
+            *argb = qConvertBGRA32ToARGB32(*bgra);
+            ++bgra;
+            ++argb;
+        }
+
+        src += stride;
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimedia/video/video.pri b/src/multimedia/video/video.pri
index 3e39d9d18..e5fa697ce 100644
--- a/src/multimedia/video/video.pri
+++ b/src/multimedia/video/video.pri
@@ -14,7 +14,9 @@ PRIVATE_HEADERS += \
     video/qimagevideobuffer_p.h \
     video/qmemoryvideobuffer_p.h \
     video/qvideooutputorientationhandler_p.h \
-    video/qvideosurfaceoutput_p.h
+    video/qvideosurfaceoutput_p.h \
+    video/qvideoframe_p.h \
+    video/qvideoframeconversionhelper_p.h
 
 SOURCES += \
     video/qabstractvideobuffer.cpp \
@@ -26,4 +28,9 @@ SOURCES += \
     video/qvideosurfaceformat.cpp \
     video/qvideosurfaceoutput.cpp \
     video/qvideoprobe.cpp \
-    video/qabstractvideofilter.cpp
+    video/qabstractvideofilter.cpp \
+    video/qvideoframeconversionhelper.cpp
+
+SSE2_SOURCES += video/qvideoframeconversionhelper_sse2.cpp
+SSSE3_SOURCES += video/qvideoframeconversionhelper_ssse3.cpp
+AVX2_SOURCES += video/qvideoframeconversionhelper_avx2.cpp
diff --git a/src/plugins/android/src/common/qandroidmultimediautils.cpp b/src/plugins/android/src/common/qandroidmultimediautils.cpp
index a41cc0e1b..9255db549 100644
--- a/src/plugins/android/src/common/qandroidmultimediautils.cpp
+++ b/src/plugins/android/src/common/qandroidmultimediautils.cpp
@@ -68,564 +68,5 @@ bool qt_sizeLessThan(const QSize &s1, const QSize &s2)
     return s1.width() * s1.height() < s2.width() * s2.height();
 }
 
-// Pre-computed Y coefficients for all possible y values (0-255). Stored as fixed-point (16:16)
-// Y = 1.164 * (y - 16)
-static const int coefficientsY[256] = {
-    -593888, -555746, -517604, -479462, -441320, -403178, -365036, -326894, -288752, -250610,
-    -212468, -174326, -136184,  -98042,  -59900,  -21758,   16384,   54526,   92668,  130810,
-     168952,  207094,  245236,  283378,  321520,  359662,  397804,  435946,  474088,  512230,
-     550372,  588514,  626656,  664798,  702940,  741082,  779224,  817366,  855508,  893650,
-     931792,  969934, 1008076, 1046218, 1084360, 1122502, 1160644, 1198786, 1236928, 1275070,
-    1313212, 1351354, 1389496, 1427638, 1465780, 1503922, 1542064, 1580206, 1618348, 1656490,
-    1694632, 1732774, 1770916, 1809058, 1847200, 1885342, 1923484, 1961626, 1999768, 2037910,
-    2076052, 2114194, 2152336, 2190478, 2228620, 2266762, 2304904, 2343046, 2381188, 2419330,
-    2457472, 2495614, 2533756, 2571898, 2610040, 2648182, 2686324, 2724466, 2762608, 2800750,
-    2838892, 2877034, 2915176, 2953318, 2991460, 3029602, 3067744, 3105886, 3144028, 3182170,
-    3220312, 3258454, 3296596, 3334738, 3372880, 3411022, 3449164, 3487306, 3525448, 3563590,
-    3601732, 3639874, 3678016, 3716158, 3754300, 3792442, 3830584, 3868726, 3906868, 3945010,
-    3983152, 4021294, 4059436, 4097578, 4135720, 4173862, 4212004, 4250146, 4288288, 4326430,
-    4364572, 4402714, 4440856, 4478998, 4517140, 4555282, 4593424, 4631566, 4669708, 4707850,
-    4745992, 4784134, 4822276, 4860418, 4898560, 4936702, 4974844, 5012986, 5051128, 5089270,
-    5127412, 5165554, 5203696, 5241838, 5279980, 5318122, 5356264, 5394406, 5432548, 5470690,
-    5508832, 5546974, 5585116, 5623258, 5661400, 5699542, 5737684, 5775826, 5813968, 5852110,
-    5890252, 5928394, 5966536, 6004678, 6042820, 6080962, 6119104, 6157246, 6195388, 6233530,
-    6271672, 6309814, 6347956, 6386098, 6424240, 6462382, 6500524, 6538666, 6576808, 6614950,
-    6653092, 6691234, 6729376, 6767518, 6805660, 6843802, 6881944, 6920086, 6958228, 6996370,
-    7034512, 7072654, 7110796, 7148938, 7187080, 7225222, 7263364, 7301506, 7339648, 7377790,
-    7415932, 7454074, 7492216, 7530358, 7568500, 7606642, 7644784, 7682926, 7721068, 7759210,
-    7797352, 7835494, 7873636, 7911778, 7949920, 7988062, 8026204, 8064346, 8102488, 8140630,
-    8178772, 8216914, 8255056, 8293198, 8331340, 8369482, 8407624, 8445766, 8483908, 8522050,
-    8560192, 8598334, 8636476, 8674618, 8712760, 8750902, 8789044, 8827186, 8865328, 8903470,
-    8941612, 8979754, 9017896, 9056038, 9094180, 9132322
-};
-
-// V lookup table for the Red component. Stored as fixed-point (16:16).
-// V = 1.596 * (v - 128)
-static const int coefficientsRV[256] = {
-    -6694144, -6641846, -6589548, -6537250, -6484952, -6432654, -6380356, -6328058, -6275760,
-    -6223462, -6171164, -6118866, -6066568, -6014270, -5961972, -5909674, -5857376, -5805078,
-    -5752780, -5700482, -5648184, -5595886, -5543588, -5491290, -5438992, -5386694, -5334396,
-    -5282098, -5229800, -5177502, -5125204, -5072906, -5020608, -4968310, -4916012, -4863714,
-    -4811416, -4759118, -4706820, -4654522, -4602224, -4549926, -4497628, -4445330, -4393032,
-    -4340734, -4288436, -4236138, -4183840, -4131542, -4079244, -4026946, -3974648, -3922350,
-    -3870052, -3817754, -3765456, -3713158, -3660860, -3608562, -3556264, -3503966, -3451668,
-    -3399370, -3347072, -3294774, -3242476, -3190178, -3137880, -3085582, -3033284, -2980986,
-    -2928688, -2876390, -2824092, -2771794, -2719496, -2667198, -2614900, -2562602, -2510304,
-    -2458006, -2405708, -2353410, -2301112, -2248814, -2196516, -2144218, -2091920, -2039622,
-    -1987324, -1935026, -1882728, -1830430, -1778132, -1725834, -1673536, -1621238, -1568940,
-    -1516642, -1464344, -1412046, -1359748, -1307450, -1255152, -1202854, -1150556, -1098258,
-    -1045960,  -993662,  -941364,  -889066,  -836768,  -784470,  -732172,  -679874,  -627576,
-     -575278,  -522980,  -470682,  -418384,  -366086,  -313788,  -261490,  -209192,  -156894,
-     -104596,   -52298,        0,    52298,   104596,   156894,   209192,   261490,   313788,
-      366086,   418384,   470682,   522980,   575278,   627576,   679874,   732172,   784470,
-      836768,   889066,   941364,   993662,  1045960,  1098258,  1150556,  1202854,  1255152,
-     1307450,  1359748,  1412046,  1464344,  1516642,  1568940,  1621238,  1673536,  1725834,
-     1778132,  1830430,  1882728,  1935026,  1987324,  2039622,  2091920,  2144218,  2196516,
-     2248814,  2301112,  2353410,  2405708,  2458006,  2510304,  2562602,  2614900,  2667198,
-     2719496,  2771794,  2824092,  2876390,  2928688,  2980986,  3033284,  3085582,  3137880,
-     3190178,  3242476,  3294774,  3347072,  3399370,  3451668,  3503966,  3556264,  3608562,
-     3660860,  3713158,  3765456,  3817754,  3870052,  3922350,  3974648,  4026946,  4079244,
-     4131542,  4183840,  4236138,  4288436,  4340734,  4393032,  4445330,  4497628,  4549926,
-     4602224,  4654522,  4706820,  4759118,  4811416,  4863714,  4916012,  4968310,  5020608,
-     5072906,  5125204,  5177502,  5229800,  5282098,  5334396,  5386694,  5438992,  5491290,
-     5543588,  5595886,  5648184,  5700482,  5752780,  5805078,  5857376,  5909674,  5961972,
-     6014270,  6066568,  6118866,  6171164,  6223462,  6275760,  6328058,  6380356,  6432654,
-     6484952,  6537250,  6589548,  6641846
-};
-
-// U lookup table for the Green component. Stored as fixed-point (16:16).
-// U = 0.391 * (u - 128)
-static const int coefficientsGU[256] = {
-     1639936,  1627124,  1614312,  1601500,  1588688,  1575876,  1563064,  1550252,  1537440,
-     1524628,  1511816,  1499004,  1486192,  1473380,  1460568,  1447756,  1434944,  1422132,
-     1409320,  1396508,  1383696,  1370884,  1358072,  1345260,  1332448,  1319636,  1306824,
-     1294012,  1281200,  1268388,  1255576,  1242764,  1229952,  1217140,  1204328,  1191516,
-     1178704,  1165892,  1153080,  1140268,  1127456,  1114644,  1101832,  1089020,  1076208,
-     1063396,  1050584,  1037772,  1024960,  1012148,   999336,   986524,   973712,   960900,
-      948088,   935276,   922464,   909652,   896840,   884028,   871216,   858404,   845592,
-      832780,   819968,   807156,   794344,   781532,   768720,   755908,   743096,   730284,
-      717472,   704660,   691848,   679036,   666224,   653412,   640600,   627788,   614976,
-      602164,   589352,   576540,   563728,   550916,   538104,   525292,   512480,   499668,
-      486856,   474044,   461232,   448420,   435608,   422796,   409984,   397172,   384360,
-      371548,   358736,   345924,   333112,   320300,   307488,   294676,   281864,   269052,
-      256240,   243428,   230616,   217804,   204992,   192180,   179368,   166556,   153744,
-      140932,   128120,   115308,   102496,    89684,    76872,    64060,    51248,    38436,
-       25624,    12812,        0,   -12812,   -25624,   -38436,   -51248,   -64060,   -76872,
-      -89684,  -102496,  -115308,  -128120,  -140932,  -153744,  -166556,  -179368,  -192180,
-     -204992,  -217804,  -230616,  -243428,  -256240,  -269052,  -281864,  -294676,  -307488,
-     -320300,  -333112,  -345924,  -358736,  -371548,  -384360,  -397172,  -409984,  -422796,
-     -435608,  -448420,  -461232,  -474044,  -486856,  -499668,  -512480,  -525292,  -538104,
-     -550916,  -563728,  -576540,  -589352,  -602164,  -614976,  -627788,  -640600,  -653412,
-     -666224,  -679036,  -691848,  -704660,  -717472,  -730284,  -743096,  -755908,  -768720,
-     -781532,  -794344,  -807156,  -819968,  -832780,  -845592,  -858404,  -871216,  -884028,
-     -896840,  -909652,  -922464,  -935276,  -948088,  -960900,  -973712,  -986524,  -999336,
-    -1012148, -1024960, -1037772, -1050584, -1063396, -1076208, -1089020, -1101832, -1114644,
-    -1127456, -1140268, -1153080, -1165892, -1178704, -1191516, -1204328, -1217140, -1229952,
-    -1242764, -1255576, -1268388, -1281200, -1294012, -1306824, -1319636, -1332448, -1345260,
-    -1358072, -1370884, -1383696, -1396508, -1409320, -1422132, -1434944, -1447756, -1460568,
-    -1473380, -1486192, -1499004, -1511816, -1524628, -1537440, -1550252, -1563064, -1575876,
-    -1588688, -1601500, -1614312, -1627124
-};
-
-// V lookup table for the Green component. Stored as fixed-point (16:16).
-// V = 0.813 * (v - 128)
-static const int coefficientsGV[256] = {
-     3409920,  3383280,  3356640,  3330000,  3303360,  3276720,  3250080,  3223440,  3196800,
-     3170160,  3143520,  3116880,  3090240,  3063600,  3036960,  3010320,  2983680,  2957040,
-     2930400,  2903760,  2877120,  2850480,  2823840,  2797200,  2770560,  2743920,  2717280,
-     2690640,  2664000,  2637360,  2610720,  2584080,  2557440,  2530800,  2504160,  2477520,
-     2450880,  2424240,  2397600,  2370960,  2344320,  2317680,  2291040,  2264400,  2237760,
-     2211120,  2184480,  2157840,  2131200,  2104560,  2077920,  2051280,  2024640,  1998000,
-     1971360,  1944720,  1918080,  1891440,  1864800,  1838160,  1811520,  1784880,  1758240,
-     1731600,  1704960,  1678320,  1651680,  1625040,  1598400,  1571760,  1545120,  1518480,
-     1491840,  1465200,  1438560,  1411920,  1385280,  1358640,  1332000,  1305360,  1278720,
-     1252080,  1225440,  1198800,  1172160,  1145520,  1118880,  1092240,  1065600,  1038960,
-     1012320,   985680,   959040,   932400,   905760,   879120,   852480,   825840,   799200,
-      772560,   745920,   719280,   692640,   666000,   639360,   612720,   586080,   559440,
-      532800,   506160,   479520,   452880,   426240,   399600,   372960,   346320,   319680,
-      293040,   266400,   239760,   213120,   186480,   159840,   133200,   106560,    79920,
-       53280,    26640,        0,   -26640,   -53280,   -79920,  -106560,  -133200,  -159840,
-     -186480,  -213120,  -239760,  -266400,  -293040,  -319680,  -346320,  -372960,  -399600,
-     -426240,  -452880,  -479520,  -506160,  -532800,  -559440,  -586080,  -612720,  -639360,
-     -666000,  -692640,  -719280,  -745920,  -772560,  -799200,  -825840,  -852480,  -879120,
-     -905760,  -932400,  -959040,  -985680, -1012320, -1038960, -1065600, -1092240, -1118880,
-    -1145520, -1172160, -1198800, -1225440, -1252080, -1278720, -1305360, -1332000, -1358640,
-    -1385280, -1411920, -1438560, -1465200, -1491840, -1518480, -1545120, -1571760, -1598400,
-    -1625040, -1651680, -1678320, -1704960, -1731600, -1758240, -1784880, -1811520, -1838160,
-    -1864800, -1891440, -1918080, -1944720, -1971360, -1998000, -2024640, -2051280, -2077920,
-    -2104560, -2131200, -2157840, -2184480, -2211120, -2237760, -2264400, -2291040, -2317680,
-    -2344320, -2370960, -2397600, -2424240, -2450880, -2477520, -2504160, -2530800, -2557440,
-    -2584080, -2610720, -2637360, -2664000, -2690640, -2717280, -2743920, -2770560, -2797200,
-    -2823840, -2850480, -2877120, -2903760, -2930400, -2957040, -2983680, -3010320, -3036960,
-    -3063600, -3090240, -3116880, -3143520, -3170160, -3196800, -3223440, -3250080, -3276720,
-    -3303360, -3330000, -3356640, -3383280
-};
-
-// U lookup table for the Blue component. Stored as fixed-point (16:16).
-// U = 2.018 * (u - 128)
-static const int coefficientsBU[256] = {
-    -8464128, -8398002, -8331876, -8265750, -8199624, -8133498, -8067372, -8001246, -7935120,
-    -7868994, -7802868, -7736742, -7670616, -7604490, -7538364, -7472238, -7406112, -7339986,
-    -7273860, -7207734, -7141608, -7075482, -7009356, -6943230, -6877104, -6810978, -6744852,
-    -6678726, -6612600, -6546474, -6480348, -6414222, -6348096, -6281970, -6215844, -6149718,
-    -6083592, -6017466, -5951340, -5885214, -5819088, -5752962, -5686836, -5620710, -5554584,
-    -5488458, -5422332, -5356206, -5290080, -5223954, -5157828, -5091702, -5025576, -4959450,
-    -4893324, -4827198, -4761072, -4694946, -4628820, -4562694, -4496568, -4430442, -4364316,
-    -4298190, -4232064, -4165938, -4099812, -4033686, -3967560, -3901434, -3835308, -3769182,
-    -3703056, -3636930, -3570804, -3504678, -3438552, -3372426, -3306300, -3240174, -3174048,
-    -3107922, -3041796, -2975670, -2909544, -2843418, -2777292, -2711166, -2645040, -2578914,
-    -2512788, -2446662, -2380536, -2314410, -2248284, -2182158, -2116032, -2049906, -1983780,
-    -1917654, -1851528, -1785402, -1719276, -1653150, -1587024, -1520898, -1454772, -1388646,
-    -1322520, -1256394, -1190268, -1124142, -1058016,  -991890,  -925764,  -859638,  -793512,
-     -727386,  -661260,  -595134,  -529008,  -462882,  -396756,  -330630,  -264504,  -198378,
-     -132252,   -66126,        0,    66126,   132252,   198378,   264504,   330630,   396756,
-      462882,   529008,   595134,   661260,   727386,   793512,   859638,   925764,   991890,
-     1058016,  1124142,  1190268,  1256394,  1322520,  1388646,  1454772,  1520898,  1587024,
-     1653150,  1719276,  1785402,  1851528,  1917654,  1983780,  2049906,  2116032,  2182158,
-     2248284,  2314410,  2380536,  2446662,  2512788,  2578914,  2645040,  2711166,  2777292,
-     2843418,  2909544,  2975670,  3041796,  3107922,  3174048,  3240174,  3306300,  3372426,
-     3438552,  3504678,  3570804,  3636930,  3703056,  3769182,  3835308,  3901434,  3967560,
-     4033686,  4099812,  4165938,  4232064,  4298190,  4364316,  4430442,  4496568,  4562694,
-     4628820,  4694946,  4761072,  4827198,  4893324,  4959450,  5025576,  5091702,  5157828,
-     5223954,  5290080,  5356206,  5422332,  5488458,  5554584,  5620710,  5686836,  5752962,
-     5819088,  5885214,  5951340,  6017466,  6083592,  6149718,  6215844,  6281970,  6348096,
-     6414222,  6480348,  6546474,  6612600,  6678726,  6744852,  6810978,  6877104,  6943230,
-     7009356,  7075482,  7141608,  7207734,  7273860,  7339986,  7406112,  7472238,  7538364,
-     7604490,  7670616,  7736742,  7802868,  7868994,  7935120,  8001246,  8067372,  8133498,
-     8199624,  8265750,  8331876,  8398002
-};
-
-// R = min(max(r, 0), 255) << 16
-// where 'r' is the converted red component from YUV, which is always in the range -320 <= r < 704
-// and needs to be clamped to 0-255. It also precomputes the bitshift needed to create an RGB value.
-static const quint32 _clampedR[1024] = {
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,        0,        0,        0,        0,        0,        0,        0,
-           0,    65536,   131072,   196608,   262144,   327680,   393216,   458752,
-      524288,   589824,   655360,   720896,   786432,   851968,   917504,   983040,
-     1048576,  1114112,  1179648,  1245184,  1310720,  1376256,  1441792,  1507328,
-     1572864,  1638400,  1703936,  1769472,  1835008,  1900544,  1966080,  2031616,
-     2097152,  2162688,  2228224,  2293760,  2359296,  2424832,  2490368,  2555904,
-     2621440,  2686976,  2752512,  2818048,  2883584,  2949120,  3014656,  3080192,
-     3145728,  3211264,  3276800,  3342336,  3407872,  3473408,  3538944,  3604480,
-     3670016,  3735552,  3801088,  3866624,  3932160,  3997696,  4063232,  4128768,
-     4194304,  4259840,  4325376,  4390912,  4456448,  4521984,  4587520,  4653056,
-     4718592,  4784128,  4849664,  4915200,  4980736,  5046272,  5111808,  5177344,
-     5242880,  5308416,  5373952,  5439488,  5505024,  5570560,  5636096,  5701632,
-     5767168,  5832704,  5898240,  5963776,  6029312,  6094848,  6160384,  6225920,
-     6291456,  6356992,  6422528,  6488064,  6553600,  6619136,  6684672,  6750208,
-     6815744,  6881280,  6946816,  7012352,  7077888,  7143424,  7208960,  7274496,
-     7340032,  7405568,  7471104,  7536640,  7602176,  7667712,  7733248,  7798784,
-     7864320,  7929856,  7995392,  8060928,  8126464,  8192000,  8257536,  8323072,
-     8388608,  8454144,  8519680,  8585216,  8650752,  8716288,  8781824,  8847360,
-     8912896,  8978432,  9043968,  9109504,  9175040,  9240576,  9306112,  9371648,
-     9437184,  9502720,  9568256,  9633792,  9699328,  9764864,  9830400,  9895936,
-     9961472, 10027008, 10092544, 10158080, 10223616, 10289152, 10354688, 10420224,
-    10485760, 10551296, 10616832, 10682368, 10747904, 10813440, 10878976, 10944512,
-    11010048, 11075584, 11141120, 11206656, 11272192, 11337728, 11403264, 11468800,
-    11534336, 11599872, 11665408, 11730944, 11796480, 11862016, 11927552, 11993088,
-    12058624, 12124160, 12189696, 12255232, 12320768, 12386304, 12451840, 12517376,
-    12582912, 12648448, 12713984, 12779520, 12845056, 12910592, 12976128, 13041664,
-    13107200, 13172736, 13238272, 13303808, 13369344, 13434880, 13500416, 13565952,
-    13631488, 13697024, 13762560, 13828096, 13893632, 13959168, 14024704, 14090240,
-    14155776, 14221312, 14286848, 14352384, 14417920, 14483456, 14548992, 14614528,
-    14680064, 14745600, 14811136, 14876672, 14942208, 15007744, 15073280, 15138816,
-    15204352, 15269888, 15335424, 15400960, 15466496, 15532032, 15597568, 15663104,
-    15728640, 15794176, 15859712, 15925248, 15990784, 16056320, 16121856, 16187392,
-    16252928, 16318464, 16384000, 16449536, 16515072, 16580608, 16646144, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680,
-    16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680, 16711680
-};
-
-// G = min(max(g, 0), 255) << 8
-// where 'g' is the converted green component from YUV, which is always in the range -320 <= r < 704
-// and needs to be clamped to 0-255. It also precomputes the bitshift needed to create an RGB value.
-static const quint32 _clampedG[1024] = {
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,     0,     0,     0,     0,     0,     0,     0,
-        0,   256,   512,   768,  1024,  1280,  1536,  1792,
-     2048,  2304,  2560,  2816,  3072,  3328,  3584,  3840,
-     4096,  4352,  4608,  4864,  5120,  5376,  5632,  5888,
-     6144,  6400,  6656,  6912,  7168,  7424,  7680,  7936,
-     8192,  8448,  8704,  8960,  9216,  9472,  9728,  9984,
-    10240, 10496, 10752, 11008, 11264, 11520, 11776, 12032,
-    12288, 12544, 12800, 13056, 13312, 13568, 13824, 14080,
-    14336, 14592, 14848, 15104, 15360, 15616, 15872, 16128,
-    16384, 16640, 16896, 17152, 17408, 17664, 17920, 18176,
-    18432, 18688, 18944, 19200, 19456, 19712, 19968, 20224,
-    20480, 20736, 20992, 21248, 21504, 21760, 22016, 22272,
-    22528, 22784, 23040, 23296, 23552, 23808, 24064, 24320,
-    24576, 24832, 25088, 25344, 25600, 25856, 26112, 26368,
-    26624, 26880, 27136, 27392, 27648, 27904, 28160, 28416,
-    28672, 28928, 29184, 29440, 29696, 29952, 30208, 30464,
-    30720, 30976, 31232, 31488, 31744, 32000, 32256, 32512,
-    32768, 33024, 33280, 33536, 33792, 34048, 34304, 34560,
-    34816, 35072, 35328, 35584, 35840, 36096, 36352, 36608,
-    36864, 37120, 37376, 37632, 37888, 38144, 38400, 38656,
-    38912, 39168, 39424, 39680, 39936, 40192, 40448, 40704,
-    40960, 41216, 41472, 41728, 41984, 42240, 42496, 42752,
-    43008, 43264, 43520, 43776, 44032, 44288, 44544, 44800,
-    45056, 45312, 45568, 45824, 46080, 46336, 46592, 46848,
-    47104, 47360, 47616, 47872, 48128, 48384, 48640, 48896,
-    49152, 49408, 49664, 49920, 50176, 50432, 50688, 50944,
-    51200, 51456, 51712, 51968, 52224, 52480, 52736, 52992,
-    53248, 53504, 53760, 54016, 54272, 54528, 54784, 55040,
-    55296, 55552, 55808, 56064, 56320, 56576, 56832, 57088,
-    57344, 57600, 57856, 58112, 58368, 58624, 58880, 59136,
-    59392, 59648, 59904, 60160, 60416, 60672, 60928, 61184,
-    61440, 61696, 61952, 62208, 62464, 62720, 62976, 63232,
-    63488, 63744, 64000, 64256, 64512, 64768, 65024, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280,
-    65280, 65280, 65280, 65280, 65280, 65280, 65280, 65280
-};
-
-// B = min(max(b, 0), 255)
-// where 'b' is the converted blue component from YUV, which is always in the range -320 <= r < 704
-static const quint32 _clampedB[1024] = {
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-      0,   1,   2,   3,   4,   5,   6,   7,   8,   9,  10,  11,  12,  13,  14,  15,
-     16,  17,  18,  19,  20,  21,  22,  23,  24,  25,  26,  27,  28,  29,  30,  31,
-     32,  33,  34,  35,  36,  37,  38,  39,  40,  41,  42,  43,  44,  45,  46,  47,
-     48,  49,  50,  51,  52,  53,  54,  55,  56,  57,  58,  59,  60,  61,  62,  63,
-     64,  65,  66,  67,  68,  69,  70,  71,  72,  73,  74,  75,  76,  77,  78,  79,
-     80,  81,  82,  83,  84,  85,  86,  87,  88,  89,  90,  91,  92,  93,  94,  95,
-     96,  97,  98,  99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
-    112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
-    128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
-    144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
-    160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
-    176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
-    192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
-    208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
-    224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
-    240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255
-};
-
-static const quint32 *clampedR = _clampedR + 320;
-static const quint32 *clampedG = _clampedG + 320;
-static const quint32 *clampedB = _clampedB + 320;
-
-#define MAKE_RGB(r, g, b) 0xff000000 | clampedR[r] | clampedG[g] | clampedB[b]
-
-void qt_convert_NV21_to_ARGB32(const uchar *yuv, quint32 *rgb, int width, int height)
-{
-    const uchar *y0 = yuv;
-    const uchar *y1 = yuv + width;
-    const uchar *vu = yuv + width * height;
-
-    quint32 *rgb0 = rgb;
-    quint32 *rgb1 = rgb + width;
-
-    for (int i = 0; i < height; i += 2) {
-        for (int j = 0; j < width; j += 2) {
-            int v = *vu++;
-            int u = *vu++;
-
-            int ruv = coefficientsRV[v] >> 15;
-            int guv = (coefficientsGU[u] + coefficientsGV[v]) >> 15;
-            int buv = coefficientsBU[u] >> 15;
-
-            int y = coefficientsY[*y0++] >> 15;
-            int r = y + ruv;
-            int g = y + guv;
-            int b = y + buv;
-            *rgb0++ = MAKE_RGB(r, g, b);
-
-            y = coefficientsY[*y0++] >> 15;
-            r = y + ruv;
-            g = y + guv;
-            b = y + buv;
-            *rgb0++ = MAKE_RGB(r, g, b);
-
-            y = coefficientsY[*y1++] >> 15;
-            r = y + ruv;
-            g = y + guv;
-            b = y + buv;
-            *rgb1++ = MAKE_RGB(r, g, b);
-
-            y = coefficientsY[*y1++] >> 15;
-            r = y + ruv;
-            g = y + guv;
-            b = y + buv;
-            *rgb1++ = MAKE_RGB(r, g, b);
-        }
-
-        rgb0 += width;
-        rgb1 += width;
-        y0 += width;
-        y1 += width;
-    }
-}
 
 QT_END_NAMESPACE
diff --git a/src/plugins/android/src/common/qandroidmultimediautils.h b/src/plugins/android/src/common/qandroidmultimediautils.h
index ea6a322e7..6955c49e9 100644
--- a/src/plugins/android/src/common/qandroidmultimediautils.h
+++ b/src/plugins/android/src/common/qandroidmultimediautils.h
@@ -45,7 +45,6 @@ int qt_findClosestValue(const QList<int> &list, int value);
 
 bool qt_sizeLessThan(const QSize &s1, const QSize &s2);
 
-void qt_convert_NV21_to_ARGB32(const uchar *yuv, quint32 *rgb, int width, int height);
 
 QT_END_NAMESPACE
 
diff --git a/src/plugins/android/src/mediacapture/qandroidcamerasession.cpp b/src/plugins/android/src/mediacapture/qandroidcamerasession.cpp
index 179bcdf96..cf1879eb1 100644
--- a/src/plugins/android/src/mediacapture/qandroidcamerasession.cpp
+++ b/src/plugins/android/src/mediacapture/qandroidcamerasession.cpp
@@ -43,6 +43,8 @@
 #include <qguiapplication.h>
 #include <qdebug.h>
 #include <qvideoframe.h>
+#include <private/qmemoryvideobuffer_p.h>
+#include <private/qvideoframe_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -582,11 +584,10 @@ void QAndroidCameraSession::processPreviewImage(int id, const QByteArray &data,
 
 QImage QAndroidCameraSession::prepareImageFromPreviewData(const QByteArray &data, int width, int height, int rotation)
 {
-    QImage result(width, height, QImage::Format_ARGB32);
-    qt_convert_NV21_to_ARGB32((const uchar *)data.constData(),
-                              (quint32 *)result.bits(),
-                              width,
-                              height);
+    QVideoFrame frame(new QMemoryVideoBuffer(data, width),
+                      QSize(width, height), QVideoFrame::Format_NV21);
+
+    QImage result = qt_imageFromVideoFrame(frame);
 
     QTransform transform;