diff options
Diffstat (limited to 'kfile-plugins/wav/kfile_wav.cpp')
| -rw-r--r-- | kfile-plugins/wav/kfile_wav.cpp | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/kfile-plugins/wav/kfile_wav.cpp b/kfile-plugins/wav/kfile_wav.cpp deleted file mode 100644 index 50841d95..00000000 --- a/kfile-plugins/wav/kfile_wav.cpp +++ /dev/null @@ -1,173 +0,0 @@ -/* This file is part of the KDE project - * Copyright (C) 2002 Ryan Cumming <bodnar42@phalynx.dhs.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. - * - */ - -#include <config.h> -#include "kfile_wav.h" - -#include <kprocess.h> -#include <klocale.h> -#include <kgenericfactory.h> -#include <kstringvalidator.h> -#include <kdebug.h> - -#include <tqdict.h> -#include <tqvalidator.h> -#include <tqcstring.h> -#include <tqfile.h> -#include <tqdatetime.h> - -#if !defined(__osf__) -#include <inttypes.h> -#else -typedef unsigned short uint16_t; -typedef unsigned int uint32_t; -#endif - -typedef KGenericFactory<KWavPlugin> WavFactory; - -K_EXPORT_COMPONENT_FACTORY(kfile_wav, WavFactory( "kfile_wav" )) - -KWavPlugin::KWavPlugin(TQObject *parent, const char *name, - const TQStringList &args) - - : KFilePlugin(parent, name, args) -{ - KFileMimeTypeInfo* info = addMimeTypeInfo( "audio/x-wav" ); - - KFileMimeTypeInfo::GroupInfo* group = 0L; - - // "the" group - group = addGroupInfo(info, "Technical", i18n("Technical Details")); - - KFileMimeTypeInfo::ItemInfo* item; - - item = addItemInfo(group, "Sample Size", i18n("Sample Size"), TQVariant::Int); - setSuffix(item, i18n(" bits")); - - item = addItemInfo(group, "Sample Rate", i18n("Sample Rate"), TQVariant::Int); - setSuffix(item, i18n(" Hz")); - - item = addItemInfo(group, "Channels", i18n("Channels"), TQVariant::Int); - - item = addItemInfo(group, "Length", i18n("Length"), TQVariant::Int); - setAttributes(item, KFileMimeTypeInfo::Cummulative); - setUnit(item, KFileMimeTypeInfo::Seconds); -} - -bool KWavPlugin::readInfo( KFileMetaInfo& info, uint /*what*/) -{ - if ( info.path().isEmpty() ) // remote file - return false; - - TQFile file(info.path()); - - uint32_t format_size; - uint16_t format_tag; - uint16_t channel_count; - uint32_t sample_rate; - uint32_t bytes_per_second; - uint16_t bytes_per_sample; - uint16_t sample_size; - uint32_t data_size; - uint32_t unknown_chunk_size; - uint16_t unknown_chunk16; - bool have_fmt = false; - bool have_data = false; - TQIODevice::Offset file_length; - - const char *riff_signature = "RIFF"; - const char *wav_signature = "WAVE"; - const char *fmt_signature = "fmt "; - const char *data_signature = "data"; - char signature_buffer[4]; - - if (!file.open(IO_ReadOnly)) - { - kdDebug(7034) << "Couldn't open " << TQFile::encodeName(info.path()).data() << endl; - return false; - } - - file_length = file.size() - 100; // a bit of insurance - TQDataStream dstream(&file); - - // WAV files are little-endian - dstream.setByteOrder(TQDataStream::LittleEndian); - - // Read and verify the RIFF signature - dstream.readRawBytes(signature_buffer, 4); - if (memcmp(signature_buffer, riff_signature, 4)) - return false; - - // Skip the next bit (total file size, pretty useless) - file.at(8); - - // Read and verify the WAVE signature - dstream.readRawBytes(signature_buffer, 4); - if (memcmp(signature_buffer, wav_signature, 4)) - return false; - - // pretty dumb scanner, but better than what we had! - do - { - dstream.readRawBytes(signature_buffer, 4); - if (!memcmp(signature_buffer, fmt_signature, 4)) { - dstream >> format_size; - dstream >> format_tag; - dstream >> channel_count; - dstream >> sample_rate; - dstream >> bytes_per_second; - dstream >> bytes_per_sample; - dstream >> sample_size; - have_fmt = true; - if ( format_size > 16 ) { - for (unsigned int i = 0; i < (format_size-16+1)/2; i++) - dstream >> unknown_chunk16; - } - } else if (!memcmp(signature_buffer, data_signature, 4)) { - dstream >> data_size; - have_data = true; - } else { - dstream >> unknown_chunk_size; - for (unsigned int i = 0; i < (unknown_chunk_size+1)/2; i++) - dstream >> unknown_chunk16; - } - if (have_data && have_fmt) - break; - } while (file.at() < file_length); - - if ( (!have_data) || (!have_fmt) ) - return false; - - // These values are downright illegal - if ((!channel_count) || (!bytes_per_second)) - return false; - - KFileMetaInfoGroup group = appendGroup(info, "Technical"); - - - appendItem(group, "Sample Size", int(sample_size)); - appendItem(group, "Sample Rate", int(sample_rate)); - appendItem(group, "Channels", int(channel_count)); - unsigned int wav_seconds = data_size / bytes_per_second; - appendItem(group, "Length", int(wav_seconds)); - - return true; -} - -#include "kfile_wav.moc" |