How do I use TagLib to read/write coverart in different audio formats?

Question

I would like to use TagLib to read/write coverart especially for mp3 AND ogg files, but I couldn\'t find any examples. Could someone point me to some examples? Where should I lo

Answer 1

Ogg Vorbis tags are text-only (and as such don't support cover art). For MP3s, this is somewhat cleaner than the other solution suggested:

using namespace TagLib;

struct Image
{
    Image(const String &m = String(), const ByteVector &d = ByteVector()) :
      mimeType(m), data(d) {}
    String mimeType;
    ByteVector data;
};

static Image getImage(const ID3v2::Tag *tag)
{
    ID3v2::FrameList frames = tag->frameList("APIC");

    if(frames.isEmpty())
    {
        return Image();
    }

    ID3v2::AttachedPictureFrame *frame =
        static_cast(frames.front());

    return Image(frame->mimeType(), frame->picture());
}

static void setImage(ID3v2::Tag *tag, const Image &image)
{
    ID3v2::FrameList frames = tag->frameList("APIC");
    ID3v2::AttachedPictureFrame *frame = 0;

    if(frames.isEmpty())
    {
        frame = new TagLib::ID3v2::AttachedPictureFrame;
        tag->addFrame(frame);
    }
    else
    {
        frame = static_cast(frames.front());
    }

    frame->setPicture(image.data);
    frame->setMimeType(image.mimeType);
}