Amarok – versatile and easy to use audio player
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amarok/amarok/src/metadata/mp4/mp4tag.cpp

129 lines
4.3 KiB

/***************************************************************************
copyright : (C) 2005 by Andy Leadbetter
email : andrew.leadbetter@gmail.com
***************************************************************************/
/***************************************************************************
* 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 "mp4tag.h"
#include <tag.h>
#include <stdint.h>
#include <cstdlib>
#include <cstring>
using namespace TagLib;
MP4::Tag::Tag() : TagLib::Tag::Tag() {
m_title = String::null;
m_artist = String::null;
m_album = String::null;
m_comment = String::null;
m_genre = String::null;
m_composer = String::null;
m_year = 0;
m_track = 0;
m_disk = 0;
m_bpm = 0;
m_compilation = Undefined;
}
MP4::Tag::~Tag() {
}
bool MP4::Tag::isEmpty() const {
return m_title == String::null &&
m_artist == String::null &&
m_album == String::null &&
m_comment == String::null &&
m_genre == String::null &&
m_composer == String::null &&
m_year == 0 &&
m_track == 0 &&
m_disk == 0 &&
m_bpm == 0 &&
m_compilation == Undefined &&
m_image.size() == 0;
}
void MP4::Tag::duplicate(const Tag *source, Tag *target, bool overwrite) {
// Duplicate standard information
Tag::duplicate(source, target, overwrite);
if (overwrite || target->compilation() == Undefined && source->compilation() != Undefined)
target->setCompilation(source->compilation());
if (overwrite || target->cover().size() == 0)
target->setCover(source->cover());
}
void MP4::Tag::readTags( MP4FileHandle mp4file )
{
// Now parse tag.
char *value;
uint8_t boolvalue;
uint16_t numvalue, numvalue2;
uint8_t *image;
uint32_t imageSize;
if (MP4GetMetadataName(mp4file, &value) && value != NULL) {
m_title = String(value, String::UTF8);
free(value);
}
if (MP4GetMetadataArtist(mp4file, &value) && value != NULL) {
m_artist = String(value, String::UTF8);
free(value);
}
if (MP4GetMetadataComment(mp4file, &value) && value != NULL) {
m_comment = String(value, String::UTF8);
free(value);
}
if (MP4GetMetadataYear(mp4file, &value) && value != NULL) {
m_year = strtol(value, NULL,0);
free(value);
}
if (MP4GetMetadataAlbum(mp4file, &value) && value != NULL) {
m_album = String(value, String::UTF8);
free(value);
}
if (MP4GetMetadataTrack(mp4file, &numvalue, &numvalue2)) {
m_track = numvalue;
}
if (MP4GetMetadataDisk(mp4file, &numvalue, &numvalue2)) {
m_disk = numvalue;
}
if (MP4GetMetadataTempo(mp4file, &numvalue)) {
m_bpm = numvalue;
}
if (MP4GetMetadataCompilation(mp4file, &boolvalue)) {
m_compilation = boolvalue;
}
if (MP4GetMetadataGenre(mp4file, &value) && value != NULL) {
m_genre = String(value, String::UTF8);
free(value);
}
if (MP4GetMetadataWriter(mp4file, &value) && value != NULL) {
m_composer = String(value, String::UTF8);
free(value);
}
if (MP4GetMetadataCoverArt(mp4file, &image, &imageSize) && image && imageSize) {
m_image.setData(reinterpret_cast<const char *>( image ), imageSize);
free(image);
}
}