From f2cfda2a54780868dfe0af7bd652fcd4906547da Mon Sep 17 00:00:00 2001 From: tpearson Date: Mon, 1 Mar 2010 19:09:31 +0000 Subject: Added KDE3 version of SoundKonverter git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/soundkonverter@1097614 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- src/metadata/m4a/mp4file.cpp | 377 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 377 insertions(+) create mode 100644 src/metadata/m4a/mp4file.cpp (limited to 'src/metadata/m4a/mp4file.cpp') diff --git a/src/metadata/m4a/mp4file.cpp b/src/metadata/m4a/mp4file.cpp new file mode 100644 index 0000000..7d37d59 --- /dev/null +++ b/src/metadata/m4a/mp4file.cpp @@ -0,0 +1,377 @@ +/*************************************************************************** + copyright : (C) 2002, 2003, 2006 by Jochen Issing + email : jochen.issing@isign-softart.de + ***************************************************************************/ + +/*************************************************************************** + * This library is free software; you can redistribute it and/or modify * + * it under the terms of the GNU Lesser General Public License version * + * 2.1 as published by the Free Software Foundation. * + * * + * This library 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 * + * Lesser General Public License for more details. * + * * + * You should have received a copy of the GNU Lesser General Public * + * License along with this library; if not, write to the Free Software * + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * + * MA 02110-1301 USA * + ***************************************************************************/ + +#include +#include +#include "tlist.h" + +#include "mp4itunestag.h" +#include "mp4file.h" +#include "boxfactory.h" +#include "mp4tagsproxy.h" +#include "mp4propsproxy.h" +#include "mp4audioproperties.h" +#include "itunesdatabox.h" + +using namespace TagLib; + +class MP4::File::FilePrivate +{ +public: + //! list for all boxes of the mp4 file + TagLib::List boxes; + //! the box factory - will create all boxes by tag and size + MP4::BoxFactory boxfactory; + //! proxy for the tags is filled after parsing + MP4::Mp4TagsProxy tagsProxy; + //! proxy for audio properties + MP4::Mp4PropsProxy propsProxy; + //! the tag returned by tag() function + MP4::Tag mp4tag; + //! container for the audio properties returned by properties() function + MP4::AudioProperties mp4audioproperties; + //! is set to valid after successfully parsing + bool isValid; +}; + +//! function to fill the tags with converted proxy data, which has been parsed out of the file previously +static void fillTagFromProxy( MP4::Mp4TagsProxy& proxy, MP4::Tag& mp4tag ); + +MP4::File::File(const char *file, bool , AudioProperties::ReadStyle ) + :TagLib::File( file ) +{ + // create member container + d = new MP4::File::FilePrivate(); + + + d->isValid = false; + TagLib::uint size; + MP4::Fourcc fourcc; + + while( readSizeAndType( size, fourcc ) == true ) + { + // create the appropriate subclass and parse it + MP4::Mp4IsoBox* curbox = d->boxfactory.createInstance( this, fourcc, size, tell() ); + curbox->parsebox(); + d->boxes.append( curbox ); + } + + for( TagLib::List::Iterator iter = d->boxes.begin(); + iter != d->boxes.end(); + iter++ ) + { + if( (*iter)->fourcc() == MP4::Fourcc("moov") ) + { + d->isValid = true; + break; + } + } + + //if( d->isValid ) + //debug( "file is valid" ); + //else + //debug( "file is NOT valid" ); + + // fill tags from proxy data + fillTagFromProxy( d->tagsProxy, d->mp4tag ); +} + +MP4::File::~File() +{ + TagLib::List::Iterator delIter; + for( delIter = d->boxes.begin(); + delIter != d->boxes.end(); + delIter++ ) + { + delete *delIter; + } + delete d; +} + +Tag *MP4::File::tag() const +{ + return &d->mp4tag; +} + +AudioProperties * MP4::File::audioProperties() const +{ + d->mp4audioproperties.setProxy( &d->propsProxy ); + return &d->mp4audioproperties; +} + +bool MP4::File::save() +{ + return false; +} + +void MP4::File::remove() +{ +} + +TagLib::uint MP4::File::readSystemsLen() +{ + TagLib::uint length = 0; + TagLib::uint nbytes = 0; + ByteVector input; + TagLib::uchar tmp_input; + + do + { + input = readBlock(1); + tmp_input = static_cast(input[0]); + nbytes++; + length = (length<<7) | (tmp_input&0x7F); + } while( (tmp_input&0x80) && (nbytes<4) ); + + return length; +} + +bool MP4::File::readSizeAndType( TagLib::uint& size, MP4::Fourcc& fourcc ) +{ + // read the two blocks from file + ByteVector readsize = readBlock(4); + ByteVector readtype = readBlock(4); + + if( (readsize.size() != 4) || (readtype.size() != 4) ) + return false; + + // set size + size = static_cast(readsize[0]) << 24 | + static_cast(readsize[1]) << 16 | + static_cast(readsize[2]) << 8 | + static_cast(readsize[3]); + + // type and size seem to be part of the stored size + if( size < 8 ) + return false; + + // set fourcc + fourcc = readtype.data(); + + return true; +} + +bool MP4::File::readInt( TagLib::uint& toRead ) +{ + ByteVector readbuffer = readBlock(4); + if( readbuffer.size() != 4 ) + return false; + + toRead = static_cast(readbuffer[0]) << 24 | + static_cast(readbuffer[1]) << 16 | + static_cast(readbuffer[2]) << 8 | + static_cast(readbuffer[3]); + return true; +} + +bool MP4::File::readShort( TagLib::uint& toRead ) +{ + ByteVector readbuffer = readBlock(2); + if( readbuffer.size() != 2 ) + return false; + + toRead = static_cast(readbuffer[0]) << 8 | + static_cast(readbuffer[1]); + return true; +} + +bool MP4::File::readLongLong( TagLib::ulonglong& toRead ) +{ + ByteVector readbuffer = readBlock(8); + if( readbuffer.size() != 8 ) + return false; + + toRead = static_cast(static_cast(readbuffer[0])) << 56 | + static_cast(static_cast(readbuffer[1])) << 48 | + static_cast(static_cast(readbuffer[2])) << 40 | + static_cast(static_cast(readbuffer[3])) << 32 | + static_cast(static_cast(readbuffer[4])) << 24 | + static_cast(static_cast(readbuffer[5])) << 16 | + static_cast(static_cast(readbuffer[6])) << 8 | + static_cast(static_cast(readbuffer[7])); + return true; +} + +bool MP4::File::readFourcc( TagLib::MP4::Fourcc& fourcc ) +{ + ByteVector readtype = readBlock(4); + + if( readtype.size() != 4) + return false; + + // set fourcc + fourcc = readtype.data(); + + return true; +} + +MP4::Mp4TagsProxy* MP4::File::tagProxy() const +{ + return &d->tagsProxy; +} + +MP4::Mp4PropsProxy* MP4::File::propProxy() const +{ + return &d->propsProxy; +} + +void fillTagFromProxy( MP4::Mp4TagsProxy& proxy, MP4::Tag& mp4tag ) +{ + // tmp buffer for each tag + MP4::ITunesDataBox* databox; + + databox = proxy.titleData(); + if( databox != 0 ) + { + // convert data to string + TagLib::String datastring( databox->data(), String::UTF8 ); + // check if string was set + if( !datastring.isEmpty() ) + mp4tag.setTitle( datastring ); + } + + databox = proxy.artistData(); + if( databox != 0 ) + { + // convert data to string + TagLib::String datastring( databox->data(), String::UTF8 ); + // check if string was set + if( !datastring.isEmpty() ) + mp4tag.setArtist( datastring ); + } + + databox = proxy.albumData(); + if( databox != 0 ) + { + // convert data to string + TagLib::String datastring( databox->data(), String::UTF8 ); + // check if string was set + if( !datastring.isEmpty() ) + mp4tag.setAlbum( datastring ); + } + + databox = proxy.genreData(); + if( databox != 0 ) + { + // convert data to string + TagLib::String datastring( databox->data(), String::UTF8 ); + // check if string was set + if( !datastring.isEmpty() ) + mp4tag.setGenre( datastring ); + } + + databox = proxy.yearData(); + if( databox != 0 ) + { + // convert data to string + TagLib::String datastring( databox->data(), String::UTF8 ); + // check if string was set + if( !datastring.isEmpty() ) + mp4tag.setYear( datastring.toInt() ); + } + + databox = proxy.trknData(); + if( databox != 0 ) + { + // convert data to uint + TagLib::ByteVector datavec = databox->data(); + if( datavec.size() >= 4 ) + { + TagLib::uint trackno = static_cast( static_cast(datavec[0]) << 24 | + static_cast(datavec[1]) << 16 | + static_cast(datavec[2]) << 8 | + static_cast(datavec[3]) ); + mp4tag.setTrack( trackno ); + } + else + mp4tag.setTrack( 0 ); + } + + databox = proxy.commentData(); + if( databox != 0 ) + { + // convert data to string + TagLib::String datastring( databox->data(), String::UTF8 ); + // check if string was set + if( !datastring.isEmpty() ) + mp4tag.setComment( datastring ); + } + + databox = proxy.groupingData(); + if( databox != 0 ) + { + // convert data to string + TagLib::String datastring( databox->data(), String::UTF8 ); + // check if string was set + if( !datastring.isEmpty() ) + mp4tag.setGrouping( datastring ); + } + + databox = proxy.composerData(); + if( databox != 0 ) + { + // convert data to string + TagLib::String datastring( databox->data(), String::UTF8 ); + // check if string was set + if( !datastring.isEmpty() ) + mp4tag.setComposer( datastring ); + } + + databox = proxy.diskData(); + if( databox != 0 ) + { + // convert data to uint + TagLib::ByteVector datavec = databox->data(); + if( datavec.size() >= 4 ) + { + TagLib::uint discno = static_cast( static_cast(datavec[0]) << 24 | + static_cast(datavec[1]) << 16 | + static_cast(datavec[2]) << 8 | + static_cast(datavec[3]) ); + mp4tag.setDisk( discno ); + } + else + mp4tag.setDisk( 0 ); + } + + databox = proxy.bpmData(); + if( databox != 0 ) + { + // convert data to uint + TagLib::ByteVector datavec = databox->data(); + + if( datavec.size() >= 2 ) + { + TagLib::uint bpm = static_cast( static_cast(datavec[0]) << 8 | + static_cast(datavec[1]) ); + mp4tag.setBpm( bpm ); + } + else + mp4tag.setBpm( 0 ); + } + + databox = proxy.coverData(); + if( databox != 0 ) + { + // get byte vector + mp4tag.setCover( databox->data() ); + } +} -- cgit v1.2.1