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-rw-r--r--src/plugins/directshow/player/directshowmediatype.cpp184
1 files changed, 184 insertions, 0 deletions
diff --git a/src/plugins/directshow/player/directshowmediatype.cpp b/src/plugins/directshow/player/directshowmediatype.cpp
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+++ b/src/plugins/directshow/player/directshowmediatype.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "directshowmediatype.h"
+
+namespace
+{
+ struct TypeLookup
+ {
+ QVideoFrame::PixelFormat pixelFormat;
+ GUID mediaType;
+ };
+
+ static const TypeLookup qt_typeLookup[] =
+ {
+ { QVideoFrame::Format_RGB32, /*MEDIASUBTYPE_RGB32*/ {0xe436eb7e, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}} },
+ { QVideoFrame::Format_BGR24, /*MEDIASUBTYPE_RGB24*/ {0xe436eb7d, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}} },
+ { QVideoFrame::Format_RGB565, /*MEDIASUBTYPE_RGB565*/ {0xe436eb7b, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}} },
+ { QVideoFrame::Format_RGB555, /*MEDIASUBTYPE_RGB555*/ {0xe436eb7c, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}} },
+ { QVideoFrame::Format_AYUV444, /*MEDIASUBTYPE_AYUV*/ {0x56555941, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} },
+ { QVideoFrame::Format_YUYV, /*MEDIASUBTYPE_YUY2*/ {0x32595559, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} },
+ { QVideoFrame::Format_UYVY, /*MEDIASUBTYPE_UYVY*/ {0x59565955, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} },
+ { QVideoFrame::Format_IMC1, /*MEDIASUBTYPE_IMC1*/ {0x31434D49, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} },
+ { QVideoFrame::Format_IMC2, /*MEDIASUBTYPE_IMC2*/ {0x32434D49, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} },
+ { QVideoFrame::Format_IMC3, /*MEDIASUBTYPE_IMC3*/ {0x33434D49, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} },
+ { QVideoFrame::Format_IMC4, /*MEDIASUBTYPE_IMC4*/ {0x34434D49, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} },
+ { QVideoFrame::Format_YV12, /*MEDIASUBTYPE_YV12*/ {0x32315659, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} },
+ { QVideoFrame::Format_NV12, /*MEDIASUBTYPE_NV12*/ {0x3231564E, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} },
+ { QVideoFrame::Format_YUV420P, /*MEDIASUBTYPE_IYUV*/ {0x56555949, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} }
+ };
+}
+
+void DirectShowMediaType::copy(AM_MEDIA_TYPE *target, const AM_MEDIA_TYPE &source)
+{
+ *target = source;
+
+ if (source.cbFormat > 0) {
+ target->pbFormat = reinterpret_cast<PBYTE>(CoTaskMemAlloc(source.cbFormat));
+ memcpy(target->pbFormat, source.pbFormat, source.cbFormat);
+ }
+ if (target->pUnk)
+ target->pUnk->AddRef();
+}
+
+void DirectShowMediaType::deleteType(AM_MEDIA_TYPE *type)
+{
+ freeData(type);
+
+ CoTaskMemFree(type);
+}
+
+void DirectShowMediaType::freeData(AM_MEDIA_TYPE *type)
+{
+ if (type->cbFormat > 0)
+ CoTaskMemFree(type->pbFormat);
+
+ if (type->pUnk)
+ type->pUnk->Release();
+}
+
+
+GUID DirectShowMediaType::convertPixelFormat(QVideoFrame::PixelFormat format)
+{
+ // MEDIASUBTYPE_None;
+ static const GUID none = {
+ 0xe436eb8e, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70} };
+
+ const int count = sizeof(qt_typeLookup) / sizeof(TypeLookup);
+
+ for (int i = 0; i < count; ++i)
+ if (qt_typeLookup[i].pixelFormat == format)
+ return qt_typeLookup[i].mediaType;
+ return none;
+}
+
+QVideoSurfaceFormat DirectShowMediaType::formatFromType(const AM_MEDIA_TYPE &type)
+{
+ const int count = sizeof(qt_typeLookup) / sizeof(TypeLookup);
+
+ for (int i = 0; i < count; ++i) {
+ if (IsEqualGUID(qt_typeLookup[i].mediaType, type.subtype) && type.cbFormat > 0) {
+ if (IsEqualGUID(type.formattype, FORMAT_VideoInfo)) {
+ VIDEOINFOHEADER *header = reinterpret_cast<VIDEOINFOHEADER *>(type.pbFormat);
+
+ QVideoSurfaceFormat format(
+ QSize(header->bmiHeader.biWidth, qAbs(header->bmiHeader.biHeight)),
+ qt_typeLookup[i].pixelFormat);
+
+ if (header->AvgTimePerFrame > 0)
+ format.setFrameRate(10000 /header->AvgTimePerFrame);
+
+ format.setScanLineDirection(header->bmiHeader.biHeight < 0
+ ? QVideoSurfaceFormat::TopToBottom
+ : QVideoSurfaceFormat::BottomToTop);
+
+ return format;
+ } else if (IsEqualGUID(type.formattype, FORMAT_VideoInfo2)) {
+ VIDEOINFOHEADER2 *header = reinterpret_cast<VIDEOINFOHEADER2 *>(type.pbFormat);
+
+ QVideoSurfaceFormat format(
+ QSize(header->bmiHeader.biWidth, qAbs(header->bmiHeader.biHeight)),
+ qt_typeLookup[i].pixelFormat);
+
+ if (header->AvgTimePerFrame > 0)
+ format.setFrameRate(10000 / header->AvgTimePerFrame);
+
+ format.setScanLineDirection(header->bmiHeader.biHeight < 0
+ ? QVideoSurfaceFormat::TopToBottom
+ : QVideoSurfaceFormat::BottomToTop);
+
+ return format;
+ }
+ }
+ }
+ return QVideoSurfaceFormat();
+}
+
+int DirectShowMediaType::bytesPerLine(const QVideoSurfaceFormat &format)
+{
+ switch (format.pixelFormat()) {
+ // 32 bpp packed formats.
+ case QVideoFrame::Format_RGB32:
+ case QVideoFrame::Format_AYUV444:
+ return format.frameWidth() * 4;
+ // 24 bpp packed formats.
+ case QVideoFrame::Format_RGB24:
+ return format.frameWidth() * 3 + 3 - format.frameWidth() % 4;
+ // 16 bpp packed formats.
+ case QVideoFrame::Format_RGB565:
+ case QVideoFrame::Format_RGB555:
+ case QVideoFrame::Format_YUYV:
+ case QVideoFrame::Format_UYVY:
+ return format.frameWidth() * 2 + 3 - format.frameWidth() % 4;
+ // Planar formats.
+ case QVideoFrame::Format_IMC1:
+ case QVideoFrame::Format_IMC2:
+ case QVideoFrame::Format_IMC3:
+ case QVideoFrame::Format_IMC4:
+ case QVideoFrame::Format_YV12:
+ case QVideoFrame::Format_NV12:
+ case QVideoFrame::Format_YUV420P:
+ return format.frameWidth() + 3 - format.frameWidth() % 4;
+ default:
+ return 0;
+ }
+}
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