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Diffstat (limited to 'src/multimedia/video/qvideoframeconversionhelper.cpp')
-rw-r--r-- | src/multimedia/video/qvideoframeconversionhelper.cpp | 348 |
1 files changed, 348 insertions, 0 deletions
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 |