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#ifndef MG_IMAGE_PROVIDER
#define MG_IMAGE_PROVIDER
class mgItemGd;
#include <vdr/thread.h>
#include <string>
#include <vector>
#include <id3v2frame.h>
#include <tbytevector.h>
#include <id3v2tag.h>
class mgImageProvider : public cThread
{
public:
/*! \brief obtain next image in list
*/
std::string getImagePath( std::string &source );
/*! \brief tell the image provider that we are replaying a different item now. Return, whether images were found.
*/
bool updateItem( mgItemGd *item );
/*! \brief Initialize image provider with all files in the given directory
*/
static mgImageProvider* Create( std::string dir );
/*! \brief Initialize image provider for use with a Giantdisc item
*/
static mgImageProvider* Create();
/*! \brief destroy instance and delete remaining temporary files
*/
~mgImageProvider();
protected:
/*! \brief Executes image conversion (.jpg to .mpg) in a separate thread
*/
virtual void Action();
private:
mgImageProvider( std::string dir );
mgImageProvider( );
/*! \brief Obtain all images in dir in alphabetic order
*/
void fillImageList( std::string dir );
/*! \brief update images according to GD scheme from database entry
*/
bool extractImagesFromDatabase( mgItemGd *item );
/*! \brief find images for an item
*/
void updateFromItemDirectory( mgItemGd *item );
/*! \brief write image from an id3v2 frame to a file
*/
void writeImage( TagLib::ByteVector &image, int num, std::string &image_cache );
/*! \brief convert all images found in the APIC frame list
*/
std::string treatFrameList( TagLib::ID3v2::FrameList &l, std::string &image_cache );
/*! \brief save images from APIC tag and save to file. returns directory where images were saved or empty string if no images were found in the APIC tag
*/
std::string extractImagesFromTag( std::string filename );
/*! \brief delete temporary images
*/
void deleteTemporaryImages();
//! \brief define various modes how images can be obtained
enum ImageMode
{
IM_ITEM_DIR, //< Use images from the directory in which the mgItem resides
IM_PLAYLIST //< Use a separate playlist passed from an external plugin
};
//! \brief the current image delivery mode
ImageMode m_mode;
//! \brief index of last image delivered
unsigned m_image_index;
//! \brief list of all image filenames when in modes ITEM_DIR or PLAYLIST
std::vector<std::string> m_image_list;
//! \brief list of all converted image filenames (.mpg) when in modes ITEM_DIR or PLAYLIST
std::vector<std::string> m_converted_images;
std::string m_source_dir;
bool m_delete_imgs_from_tag;
};
#endif
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