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

1 files changed, 172 insertions, 0 deletions

diff --git a/kfile-plugins/au/kfile_au.cpp b/kfile-plugins/au/kfile_au.cpp
new file mode 100644
index 00000000..084bd669
--- /dev/null
+++ b/kfile-plugins/au/kfile_au.cpp
@@ -0,0 +1,172 @@
+/* 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"