libtags: opus/vorbis: make sure to get to the last frame to have the full duration
libtags: vorbis, opus: ignore tags past the ogg page
libtags: try other formats after id3v2 is found
A cross-platform library for reading tags, designed for highly constrained environments.
Comparison to id3lib and taglib:
| libtags | id3lib | taglib | |
|---|---|---|---|
| ID3v2.4 | yes | no | yes |
| Ogg/Vorbis | yes | no | yes |
| FLAC | yes | no | yes |
| m4a | yes | no | yes |
| opus | yes | no | yes |
| WAV | yes | no | yes |
| IT | yes | no | ??? |
| XM | yes | no | ??? |
| S3M | yes | no | ??? |
| MOD | yes | no | ??? |
| replay gain | yes | no | ??? |
| size | tiny | bloated | more bloated |
| license | MIT | LGPL | LGPL/MPL |
| written in | C | C++ | C++ |
| memory | no allocations | allocates memory | allocates memory |
| thread safe | yes | ??? | ??? |
| speed | ultra-fast | slow | fast |
| tag writing | no, not a goal | yes | yes |
| Plan 9 support | yes, native | no | no |
CPU time (784 files: mp3, ogg, flac):
| libtags | taglib | |
|---|---|---|
| files cached | real 0m0.027s | real 0m0.155s |
| user 0m0.014s | user 0m0.102s | |
| sys 0m0.012s | sys 0m0.053s | |
| cache dropped | real 0m1.158s | real 0m1.628s |
| user 0m0.024s | user 0m0.211s | |
| sys 0m0.132s | sys 0m0.187s |
Just compile it to an archive (.a) and link to your program. Use it in your code
by including tags.h, that's the API. Documentation is in the header.
See examples/readtags.c. You can compile it on Linux like so: gcc examples/readtags.c *.c -I. -o readtags.