Re: max size for album art?
"Timothy B. Terriberry" <[email protected]>
| Newsgroups | gmane.comp.audio.compression.flac.devel |
|---|---|
| Message-ID | <[email protected]> |
lvqcl wrote: > Scott Brown <[email protected]> wrote: > >> Is there any size limitation for album art? > > Slightly less than 16 megabytes. Not directly related to FLAC, but tangentially related, since FLAC is sometimes converted to Opus with tags imported, but as documented at the bottom of the page here: <https://tools.ietf.org/html/rfc7845#page-24>, Opus allows implementations to ignore any metadata (which includes BASE64-encoded album art) after one Ogg page's worth. That gives a practical limitation of a bit over 47 kB for all album art (before BASE64 encoding), if you would like it to work everywhere. This was done to avoid the need for an unbounded buffer in embedded applications, such as Rockbox. Or, more accurately, the Rockbox implementation was already ignoring tags beyond that point, and the RFC just documented that behavior. I would not be surprised to find that embedded FLAC implementations have similar limits that are much smaller than 16 MB, but I don't know if those are spelled out anywhere. _______________________________________________ flac-dev mailing list [email protected] http://lists.xiph.org/mailman/listinfo/flac-dev