81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Simple x264 Launcher
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// Copyright (C) 2004-2019 LoRd_MuldeR <MuldeR2@GMX.de>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// http://www.gnu.org/licenses/gpl-2.0.txt
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///////////////////////////////////////////////////////////////////////////////
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#include "mediainfo.h"
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#include <QString>
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#include <QFile>
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#include <QByteArray>
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#include <QFileInfo>
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static const char *YUV4MPEG2 = "YUV4MPEG2";
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int MediaInfo::analyze(const QString &fileName)
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{
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const QString suffix = QFileInfo(fileName).suffix();
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//Try to guess Avisynth or VapourSynth from the file extension first!
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if((suffix.compare("avs", Qt::CaseInsensitive) == 0) || (suffix.compare("avsi", Qt::CaseInsensitive) == 0))
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{
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return FILETYPE_AVISYNTH;
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}
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if((suffix.compare("vpy", Qt::CaseInsensitive) == 0) || (suffix.compare("py", Qt::CaseInsensitive) == 0))
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{
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return FILETYPE_VAPOURSYNTH;
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}
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//Check for YUV4MEPG2 format next
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if(isYuv4Mpeg(fileName))
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{
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return FILETYPE_YUV4MPEG2;
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}
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//Unknown file type
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return FILETYPE_UNKNOWN;
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}
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bool MediaInfo::isYuv4Mpeg(const QString &fileName)
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{
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QFile testFile(fileName);
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//Try to open test file
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if(!testFile.open(QIODevice::ReadOnly))
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{
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qWarning("[isYuv4Mpeg] Failed to open input file!");
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return false;
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}
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//Read file header
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const size_t len = strlen(YUV4MPEG2);
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QByteArray header = testFile.read(len);
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testFile.close();
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//Did we read enough header bytes?
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if(len != header.size())
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{
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qWarning("[isYuv4Mpeg] File is too short to be analyzed!");
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return false;
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}
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//Compare YUV4MPEG2 signature
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return (memcmp(header.constData(), YUV4MPEG2, len) == 0);
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}
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