09-14-2018, 02:36 PM
It seems to me the OP asked about the cover images embedded in his files. Looking at them is a different issue from browsing the images in a directory.
AFAIK, the only "standard" in play here is ID3 V2.3.0 which calls these things "attached pictures". It defines 21 picture types, including "$03 - Cover (front)" and "$04 - Cover (back)" but also "$11 - a bright coloured fish"! Just to complicate matters, it allows for embedding either the image or a URL to the image although I haven't come across an instance of the latter.
Don't know how closely popular taggers conform to the spec. In any case, ID3 V2.3 isn't the only metadata scheme in town.
The sources to the Zend media routines for mp3, flac, etc., which are called by coverart.php, would have to be examined to see how they handle multiple instances of embedded images.
Regards,
Kent
AFAIK, the only "standard" in play here is ID3 V2.3.0 which calls these things "attached pictures". It defines 21 picture types, including "$03 - Cover (front)" and "$04 - Cover (back)" but also "$11 - a bright coloured fish"! Just to complicate matters, it allows for embedding either the image or a URL to the image although I haven't come across an instance of the latter.
Don't know how closely popular taggers conform to the spec. In any case, ID3 V2.3 isn't the only metadata scheme in town.
The sources to the Zend media routines for mp3, flac, etc., which are called by coverart.php, would have to be examined to see how they handle multiple instances of embedded images.
Regards,
Kent
