/*!
* \brief Find an APIC tag by type and optionally description
*
* \param tag Pointer to TagLib::ID3v2::Tag object
* \param type Type of picture to search for
* \param description Description of picture to search for (optional)
* \returns Pointer to frame
*/
AttachedPictureFrame* MetaIOID3::findAPIC(TagLib::ID3v2::Tag *tag,
const AttachedPictureFrame::Type &type,
const String &description)
{
TagLib::ID3v2::FrameList l = tag->frameList("APIC");
for(TagLib::ID3v2::FrameList::Iterator it = l.begin(); it != l.end(); ++it)
{
AttachedPictureFrame *f = static_cast<AttachedPictureFrame *>(*it);
if (f && f->type() == type &&
(description.isNull() || f->description() == description))
return f;
}
return nullptr;
}
/*!
* \brief Read the albumart images from the file
*
* \param tag The ID3v2 tag object in which to look for Album Art
* \returns A QList containing a list of AlbumArtImage's
* with the type and description of the APIC tag.
*/
AlbumArtList MetaIOID3::readAlbumArt(TagLib::ID3v2::Tag *tag)
{
AlbumArtList artlist;
if (!tag->frameListMap()["APIC"].isEmpty())
{
TagLib::ID3v2::FrameList apicframes = tag->frameListMap()["APIC"];
for(TagLib::ID3v2::FrameList::Iterator it = apicframes.begin();
it != apicframes.end(); ++it)
{
AttachedPictureFrame *frame =
static_cast<AttachedPictureFrame *>(*it);
// Assume a valid image would have at least
// 100 bytes of data (1x1 indexed gif is 35 bytes)
if (frame->picture().size() < 100)
{
LOG(VB_GENERAL, LOG_NOTICE,
"Music Scanner - Discarding APIC frame "
"with size less than 100 bytes");
continue;
}
AlbumArtImage *art = new AlbumArtImage();
if (frame->description().isEmpty())
art->m_description.clear();
else
art->m_description = TStringToQString(frame->description());
art->m_embedded = true;
art->m_hostname = gCoreContext->GetHostName();
QString ext = getExtFromMimeType(
TStringToQString(frame->mimeType()).toLower());
switch (frame->type())
{
case AttachedPictureFrame::FrontCover :
art->m_imageType = IT_FRONTCOVER;
art->m_filename = QString("front") + ext;
break;
case AttachedPictureFrame::BackCover :
art->m_imageType = IT_BACKCOVER;
art->m_filename = QString("back") + ext;
break;
case AttachedPictureFrame::Media :
art->m_imageType = IT_CD;
art->m_filename = QString("cd") + ext;
break;
case AttachedPictureFrame::LeafletPage :
art->m_imageType = IT_INLAY;
art->m_filename = QString("inlay") + ext;
break;
case AttachedPictureFrame::Artist :
art->m_imageType = IT_ARTIST;
art->m_filename = QString("artist") + ext;
break;
case AttachedPictureFrame::Other :
art->m_imageType = IT_UNKNOWN;
art->m_filename = QString("unknown") + ext;
break;
default:
LOG(VB_GENERAL, LOG_ERR, "Music Scanner - APIC tag found "
"with unsupported type");
delete art;
continue;
}
artlist.append(art);
}
}
return artlist;
}
