TODO

General
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5.6 support?
Large buffers will still be allocated with artwork disabled:
  ASF, Ogg (hard to fix these)
Clean up various code by using buffer_get_bits
Handle stuff done by expensive SC Unicode regexes
Test under 64-bit Strawberry Perl 5.12.0
Add support for AC3 and DTS
Standardize error messages

MP3
---
Lyricsv2/3 support
Free-format support (not reading Xing/LAME tag properly)
Support VBRI mono file with wrong offset?
VBRI not scanned right in some files (MPEG-2 Layer 3)

ID3
---
Support iTunes iTunSMPB comment for gapless info, translate into encoder delay/padding
(would also need a way to send this info to player via slimproto)
  http://www.hydrogenaudio.org/forums/index.php?showtopic=48231&st=136
  2nd value: encoder delay (usually 528)
  3rd value: encoder padding
  4th value: length in samples of original track
Support iTunNORM, translate into replay gain values
  This would be useful
ID3v1 comment + COMM are not merged but stacked
ID3v1 genre + ID3v2 genre of same numeric code should be merged

FLAC
----
Test for invalid picture data

WAV
---

Ogg
---
bug-8922-3707.ogg - does not parse correctly
Test invalid picture data

ASF
---
Filter out duplicate tags if the same exact tag exists in Extended Content Description and Metadata Library?

MP4/AAC
-------
Support seeking in files with multiple tracks (HD-AAC)
Support seeking in ADTS files
Refactor second-pass box reading code in find_frame.

ALAC
----
Audio offset/bitrate are wrong when multiple mdat boxes are present (bug 15875)

Wavpack
---
Support seeking, not necessary for SBS though

APE
---
Refactor, this code is messy and not consistent with the rest of the source

Musepack
---

Tests
---
 AIFF
  AIFF with ID3
  AIFC little-endian
 WAV
  File with wrong chunk size
  CoolEdit 96 bug?
  Chunks:
    cue
    wavl
    slnt
    plst
    LIST
      labl
      note
      ltxt
    DISP
    smpl
    BWF chunks?
 Ogg
  ID3 tags at start
  Multi-stream file
 MP3
  CRC
  mp3gain'ed file
  non-Xing VBR should set vbr flag to true
  Additional ID3 variations + APE
 MAC
  Code paths that include APETAGEX tags skipping.
  Header <= 3.97