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authorYoann Lopes <yoann.lopes@theqtcompany.com>2016-01-29 15:18:33 +0100
committerYoann Lopes <yoann.lopes@qt.io>2016-07-06 14:14:23 +0000
commit631b89ddde44dfc8b72b904d8c41368b2c02d037 (patch)
tree572f74f306ef76cffac8a6ea47b90dbb836d95a8 /src/plugins/directshow/helpers/directshowvideobuffer.cpp
parentc2f15b6071778c776b61d8807251a69adb96882e (diff)
DirectShow: refactor custom renderer filter
Refactor out some of the filter and pin logic into the DirectShowBaseFilter and DirectShowPin abstract classes. This will avoid code duplication when implementing the probe filter. The existing source filter (for qrc files) can also be refactored to use these abstract classes. Change-Id: Iaf141472dea82579ad085b3318624f9a57aa46d8 Reviewed-by: Christian Stromme <christian.stromme@qt.io>
Diffstat (limited to 'src/plugins/directshow/helpers/directshowvideobuffer.cpp')
-rw-r--r--src/plugins/directshow/helpers/directshowvideobuffer.cpp84
1 files changed, 84 insertions, 0 deletions
diff --git a/src/plugins/directshow/helpers/directshowvideobuffer.cpp b/src/plugins/directshow/helpers/directshowvideobuffer.cpp
new file mode 100644
index 000000000..3204e9f7e
--- /dev/null
+++ b/src/plugins/directshow/helpers/directshowvideobuffer.cpp
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "directshowvideobuffer.h"
+
+DirectShowVideoBuffer::DirectShowVideoBuffer(IMediaSample *sample, int bytesPerLine)
+ : QAbstractVideoBuffer(NoHandle)
+ , m_sample(sample)
+ , m_bytesPerLine(bytesPerLine)
+ , m_mapMode(NotMapped)
+{
+ m_sample->AddRef();
+}
+
+DirectShowVideoBuffer::~DirectShowVideoBuffer()
+{
+ m_sample->Release();
+}
+
+uchar *DirectShowVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine)
+{
+ if (m_mapMode == NotMapped && mode != NotMapped) {
+ if (numBytes)
+ *numBytes = m_sample->GetActualDataLength();
+
+ if (bytesPerLine)
+ *bytesPerLine = m_bytesPerLine;
+
+ BYTE *bytes = 0;
+
+ if (m_sample->GetPointer(&bytes) == S_OK) {
+ m_mapMode = mode;
+
+ return reinterpret_cast<uchar *>(bytes);
+ }
+ }
+ return 0;
+}
+
+void DirectShowVideoBuffer::unmap()
+{
+ m_mapMode = NotMapped;
+}
+
+QAbstractVideoBuffer::MapMode DirectShowVideoBuffer::mapMode() const
+{
+ return m_mapMode;
+}