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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /kfile-plugins/au/kfile_au.cpp
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
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Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/* This file is part of the KDE project
+ * Copyright (C) 2002 Shane Wright <me@shanewright.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation version 2.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <config.h>
+#include "kfile_au.h"
+
+#include <kprocess.h>
+#include <klocale.h>
+#include <kgenericfactory.h>
+#include <kstringvalidator.h>
+#include <kdebug.h>
+
+#include <qdict.h>
+#include <qvalidator.h>
+#include <qcstring.h>
+#include <qfile.h>
+#include <qdatetime.h>
+
+#if !defined(__osf__)
+#include <inttypes.h>
+#else
+typedef unsigned long uint32_t;
+typedef unsigned short uint16_t;
+#endif
+
+typedef KGenericFactory<KAuPlugin> AuFactory;
+
+K_EXPORT_COMPONENT_FACTORY(kfile_au, AuFactory( "kfile_au" ))
+
+KAuPlugin::KAuPlugin(QObject *parent, const char *name,
+ const QStringList &args)
+
+ : KFilePlugin(parent, name, args)
+{
+ KFileMimeTypeInfo* info = addMimeTypeInfo( "audio/basic" );
+
+ KFileMimeTypeInfo::GroupInfo* group = 0L;
+
+ group = addGroupInfo(info, "Technical", i18n("Technical Details"));
+
+ KFileMimeTypeInfo::ItemInfo* item;
+
+ item = addItemInfo(group, "Length", i18n("Length"), QVariant::Int);
+ setSuffix(item, "s");
+
+ item = addItemInfo(group, "Sample Rate", i18n("Sample Rate"), QVariant::Int);
+ setSuffix(item, "Hz");
+
+ item = addItemInfo(group, "Channels", i18n("Channels"), QVariant::Int);
+
+ item = addItemInfo(group, "Encoding", i18n("Encoding"), QVariant::String);
+
+}
+
+bool KAuPlugin::readInfo( KFileMetaInfo& info, uint what)
+{
+ // the file signature, wants to be tidier...
+ const char fsig[] = { 0x2e, 0x73, 0x6e, 0x64 };
+
+ // a dword buffer for input
+ char inbuf[4];
+
+ // some vars for the file properties
+ uint32_t datasize;
+ uint32_t encoding;
+ uint32_t samplerate;
+ uint32_t channels;
+ uint16_t bytespersample;
+
+ if ( info.path().isEmpty() ) // remote file
+ return false;
+
+ QFile file(info.path());
+
+ if (!file.open(IO_ReadOnly))
+ {
+ kdDebug(7034) << "Couldn't open " << QFile::encodeName(info.path()) << endl;
+ return false;
+ }
+
+ QDataStream dstream(&file);
+
+ // AU files are big-endian
+ dstream.setByteOrder(QDataStream::BigEndian);
+
+
+ // Read and verify the signature
+ dstream.readRawBytes(inbuf, 4);
+ if (memcmp(fsig, inbuf, 4))
+ return false;
+
+ // skip unwanted bits
+ file.at(8);
+
+ // grab the bits we want
+ dstream >> datasize;
+ dstream >> encoding;
+ dstream >> samplerate;
+ dstream >> channels;
+
+ // add the info
+ KFileMetaInfoGroup group = appendGroup(info, "Technical");
+ appendItem(group, "Sample Rate", (uint) samplerate);
+ appendItem(group, "Channels", (uint) channels);
+
+ // work out the encoding
+ switch (encoding) {
+ case 1 :
+ appendItem(group, "Encoding", i18n("8-bit ISDN u-law"));
+ bytespersample = 1;
+ break;
+ case 2 :
+ appendItem(group, "Encoding", i18n("8-bit linear PCM [REF-PCM]"));
+ bytespersample = 1;
+ break;
+ case 3 :
+ appendItem(group, "Encoding", i18n("16-bit linear PCM"));
+ bytespersample = 2;
+ break;
+ case 4 :
+ appendItem(group, "Encoding", i18n("24-bit linear PCM"));
+ bytespersample = 3;
+ break;
+ case 5 :
+ appendItem(group, "Encoding", i18n("32-bit linear PCM"));
+ bytespersample = 4;
+ break;
+ case 6 :
+ appendItem(group, "Encoding", i18n("32-bit IEEE floating point"));
+ bytespersample = 4;
+ break;
+ case 7 :
+ appendItem(group, "Encoding", i18n("64-bit IEEE floating point"));
+ bytespersample = 8;
+ break;
+ case 23 :
+ appendItem(group, "Encoding", i18n("8-bit ISDN u-law compressed"));
+ bytespersample = 1;
+ break;
+ default :
+ appendItem(group, "Encoding", i18n("Unknown"));
+ bytespersample = 0;
+ }
+
+ // work out length from bytespersample + channels + size
+ if ((channels > 0) && (datasize > 0) && (datasize != 0xFFFFFFFF) && (bytespersample > 0) && (samplerate > 0)) {
+ uint32_t length = datasize / channels / bytespersample / samplerate;
+ appendItem(group, "Length", (uint) length);
+ } else {
+ appendItem(group, "Length", "???");
+ }
+
+ return true;
+}
+
+#include "kfile_au.moc"