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tdemultimedia/kfile-plugins/ogg/kfile_ogg.cpp

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/* This file is part of the KDE project
* Copyright (C) 2001, 2002 Rolf Magnus <ramagnus@kde.org>
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $Id$
*/
#include "kfile_ogg.h"
#include "vcedit.h"
#include <qcstring.h>
#include <qfile.h>
#include <qdatetime.h>
#include <qdict.h>
#include <qvalidator.h>
#include <qfileinfo.h>
#include <kdebug.h>
#include <kurl.h>
#include <kprocess.h>
#include <klocale.h>
#include <kgenericfactory.h>
#include <ksavefile.h>
#include <ogg/ogg.h>
#include <vorbis/codec.h>
#include <vorbis/vorbisfile.h>
#include <sys/stat.h>
#include <unistd.h>
// known translations for common ogg/vorbis keys
// from http://www.ogg.org/ogg/vorbis/doc/v-comment.html
static const char* const knownTranslations[] = {
I18N_NOOP("Title"),
I18N_NOOP("Version"),
I18N_NOOP("Album"),
I18N_NOOP("Tracknumber"),
I18N_NOOP("Artist"),
I18N_NOOP("Organization"),
I18N_NOOP("Description"),
I18N_NOOP("Genre"),
I18N_NOOP("Date"),
I18N_NOOP("Location"),
I18N_NOOP("Copyright")
// I18N_NOOP("Isrc") // dunno what an Isrc number is, the link is broken
};
K_EXPORT_COMPONENT_FACTORY(kfile_ogg, KGenericFactory<KOggPlugin>("kfile_ogg"))
KOggPlugin::KOggPlugin( QObject *parent, const char *name,
const QStringList &args )
: KFilePlugin( parent, name, args )
{
kdDebug(7034) << "ogg plugin\n";
KFileMimeTypeInfo* info = addMimeTypeInfo( "audio/vorbis" );
KFileMimeTypeInfo::GroupInfo* group = 0;
// comment group
group = addGroupInfo(info, "Comment", i18n("Comment"));
setAttributes(group, KFileMimeTypeInfo::Addable |
KFileMimeTypeInfo::Removable);
KFileMimeTypeInfo::ItemInfo* item = 0;
item = addItemInfo(group, "Artist", i18n("Artist"), QVariant::String);
setHint(item, KFileMimeTypeInfo::Author);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
item = addItemInfo(group, "Title", i18n("Title"), QVariant::String);
setHint(item, KFileMimeTypeInfo::Name);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
item = addItemInfo(group, "Album", i18n("Album"), QVariant::String);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
item = addItemInfo(group, "Genre", i18n("Genre"), QVariant::String);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
item = addItemInfo(group, "Tracknumber", i18n("Track Number"), QVariant::String);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
item = addItemInfo(group, "Date", i18n("Date"), QVariant::String);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
item = addItemInfo(group, "Description", i18n("Description"), QVariant::String);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
item = addItemInfo(group, "Organization", i18n("Organization"), QVariant::String);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
item = addItemInfo(group, "Location", i18n("Location"), QVariant::String);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
item = addItemInfo(group, "Copyright", i18n("Copyright"), QVariant::String);
setAttributes(item, KFileMimeTypeInfo::Modifiable);
addVariableInfo(group, QVariant::String, KFileMimeTypeInfo::Addable |
KFileMimeTypeInfo::Removable |
KFileMimeTypeInfo::Modifiable);
// technical group
group = addGroupInfo(info, "Technical", i18n("Technical Details"));
setAttributes(group, 0);
addItemInfo(group, "Version", i18n("Version"), QVariant::Int);
addItemInfo(group, "Channels", i18n("Channels"), QVariant::Int);
item = addItemInfo(group, "Sample Rate", i18n("Sample Rate"), QVariant::Int);
setSuffix(item, i18n(" Hz"));
item = addItemInfo(group, "UpperBitrate", i18n("Upper Bitrate"),
QVariant::Int);
setSuffix(item, i18n(" kbps"));
item = addItemInfo(group, "LowerBitrate", i18n("Lower Bitrate"),
QVariant::Int);
setSuffix(item, i18n(" kbps"));
item = addItemInfo(group, "NominalBitrate", i18n("Nominal Bitrate"),
QVariant::Int);
setSuffix(item, i18n(" kbps"));
item = addItemInfo(group, "Bitrate", i18n("Average Bitrate"),
QVariant::Int);
setAttributes(item, KFileMimeTypeInfo::Averaged);
setHint(item, KFileMimeTypeInfo::Bitrate);
setSuffix(item, i18n( " kbps"));
item = addItemInfo(group, "Length", i18n("Length"), QVariant::Int);
setAttributes(item, KFileMimeTypeInfo::Cummulative);
setUnit(item, KFileMimeTypeInfo::Seconds);
}
bool KOggPlugin::readInfo( KFileMetaInfo& info, uint what )
{
// parts of this code taken from ogginfo.c of the vorbis-tools v1.0rc2
FILE *fp;
OggVorbis_File vf;
int rc,i;
vorbis_comment *vc;
vorbis_info *vi;
bool readComment = false;
bool readTech = false;
if (what & (KFileMetaInfo::Fastest |
KFileMetaInfo::DontCare |
KFileMetaInfo::ContentInfo)) readComment = true;
if (what & (KFileMetaInfo::Fastest |
KFileMetaInfo::DontCare |
KFileMetaInfo::TechnicalInfo)) readTech = true;
memset(&vf, 0, sizeof(OggVorbis_File));
if ( info.path().isEmpty() ) // remote file
return false;
fp = fopen(QFile::encodeName(info.path()),"rb");
if (!fp)
{
kdDebug(7034) << "Unable to open " << QFile::encodeName(info.path()) << endl;
return false;
}
rc = ov_open(fp,&vf,NULL,0);
if (rc < 0)
{
kdDebug(7034) << "Unable to understand " << QFile::encodeName(info.path())
<< ", errorcode=" << rc << endl;
return false;
}
// info.insert(KFileMetaInfoItem("Vendor", i18n("Vendor"),
// QVariant(QString(vi->vendor))));
// get the vorbis comments
if (readComment)
{
vc = ov_comment(&vf,-1);
KFileMetaInfoGroup commentGroup = appendGroup(info, "Comment");
for (i=0; i < vc->comments; i++)
{
kdDebug(7034) << vc->user_comments[i] << endl;
QStringList split = QStringList::split("=", QString::fromUtf8(vc->user_comments[i]));
split[0] = split[0].lower();
split[0][0] = split[0][0].upper();
// we have to be sure that the i18n() string always has the same
// case. Oh, and is UTF8 ok here?
appendItem(commentGroup, split[0], split[1]);
}
}
if (readTech)
{
KFileMetaInfoGroup techgroup = appendGroup(info, "Technical");
// get other information about the file
vi = ov_info(&vf,-1);
if (vi)
{
appendItem(techgroup, "Version", int(vi->version));
appendItem(techgroup, "Channels", int(vi->channels));
appendItem(techgroup, "Sample Rate", int(vi->rate));
if (vi->bitrate_upper > 0)
appendItem(techgroup, "UpperBitrate",
int(vi->bitrate_upper+500)/1000);
if (vi->bitrate_lower > 0)
appendItem(techgroup, "LowerBitrate",
int(vi->bitrate_lower+500)/1000);
if (vi->bitrate_nominal > 0)
appendItem(techgroup, "NominalBitrate",
int(vi->bitrate_nominal+500)/1000);
if (ov_bitrate(&vf,-1) > 0)
appendItem(techgroup, "Bitrate", int(ov_bitrate(&vf,-1)+500)/1000);
}
appendItem(techgroup, "Length", int(ov_time_total(&vf,-1)));
}
ov_clear(&vf);
return true;
}
bool KOggPlugin::writeInfo(const KFileMetaInfo& info) const
{
// todo: add writing support
FILE* infile;
infile = fopen(QFile::encodeName(info.path()), "r");
if (!infile)
{
kdDebug(7034) << "couldn't open " << info.path() << endl;
return false;
}
vcedit_state *state=vcedit_new_state();
if ( vcedit_open(state, infile)==-1 )
{
kdDebug(7034) << "error in vcedit_open for " << info.path() << endl;
return false;
}
struct vorbis_comment* oc = vcedit_comments(state);
struct vorbis_comment* vc = state->vc;
if(vc) vorbis_comment_clear(vc);
if (oc && oc->vendor)
{
vc->vendor = strdup(oc->vendor);
}
else
{
vc->vendor = strdup("");
}
KFileMetaInfoGroup group = info["Comment"];
QStringList keys = group.keys();
QStringList::Iterator it;
for (it = keys.begin(); it!=keys.end(); ++it)
{
KFileMetaInfoItem item = group[*it];
if (!item.isEditable() || !(item.type()==QVariant::String) )
continue;
QCString key = item.key().upper().utf8();
if (item.value().canCast(QVariant::String))
{
QCString value = item.value().toString().utf8();
kdDebug(7034) << " writing tag " << key << "=" << value << endl;
vorbis_comment_add_tag(vc,
const_cast<char*>(static_cast<const char*>(key)),
const_cast<char*>(static_cast<const char*>(value)));
}
else
kdWarning(7034) << "ignoring " << key << endl;
}
QString filename;
QFileInfo fileinfo(info.path());
// follow symlinks
if (fileinfo.isSymLink())
filename = fileinfo.readLink();
else
filename = info.path();
// nothing in Qt or KDE to get the mode as an int?
struct stat s;
stat(QFile::encodeName(filename), &s);
KSaveFile sf(filename, s.st_mode);
FILE* outfile = sf.fstream();
if ( sf.status() || !outfile)
{
kdDebug(7034) << "couldn't create temp file\n";
vcedit_clear(state); // frees comment entries and vendor
sf.abort();
if (vc->vendor) free(vc->vendor);
vc->vendor = 0;
return false;
}
vcedit_write(state,outfile); // calls vcedit_clear() itself so we don't free anything
if (vc->vendor) free(vc->vendor);
vc->vendor = 0;
fclose(infile);
sf.close();
return true;
}
QValidator* KOggPlugin::createValidator( const QString&,
const QString &, const QString &,
QObject* parent, const char* name) const {
return new QRegExpValidator(QRegExp(".*"), parent, name);
}
#include "kfile_ogg.moc"