ffmpeg segfaults on flac files with large amounts
of metadata.  This is Issue #187 in the bug tracker.

abridged output of metaflac --list:

METADATA block #0
  type: 0 (STREAMINFO)
  is last: false
  length: 34
  minimum blocksize: 4608 samples
  maximum blocksize: 4608 samples
  minimum framesize: 2606 bytes
  maximum framesize: 9679 bytes
  sample_rate: 44100 Hz
  channels: 2
  bits-per-sample: 16
  total samples: 7445616
  MD5 signature: cc40943a3c09067cf009208f92706282
METADATA block #1
  type: 4 (VORBIS_COMMENT)
  is last: false
  length: 521
  vendor string: 
  comments: 20
    comment[0]: ENCODER=Max 0.7.1
    comment[1]: ENCODING=FLAC settings: exhaustiveModelSearch:0 midSideStereo:1 looseMidSideStereo:0 QLPCoeffPrecision:0, minResidualPartitionOrder:0, maxResidualPartitionOrder:4, maxLPCOrder:8
    comment[2]: COPYRIGHT=(c) 2008 nin
    comment[3]: COMMENT=3/4 time
    comment[4]: TOTALTRACKS=36
    comment[5]: YEAR=2008
    comment[6]: DISC=1
    comment[7]: DISCC=2
    comment[8]: ALBUM=Ghosts I-IV
    comment[9]: ARTIST=Nine Inch Nails
    comment[10]: DATE=2008
    comment[11]: TITLE=1 Ghosts I
    comment[12]: TRACKNUMBER=1
    comment[13]: TRACKTOTAL=36
    comment[14]: DISCNUMBER=1
    comment[15]: DISCTOTAL=2
    comment[16]: ISRC=USTC40852229
    comment[17]: MCN=766929908628
    comment[18]: BPM=60
    comment[19]: COMPILATION=0
METADATA block #2
  type: 3 (SEEKTABLE)
  is last: false
  length: 108
  seek points: 6
    point 0: sample_number=0, stream_offset=0, frame_samples=4608
    point 1: sample_number=1322496, stream_offset=1873641, frame_samples=4608
    point 2: sample_number=2644992, stream_offset=3881752, frame_samples=4608
    point 3: sample_number=3967488, stream_offset=6386458, frame_samples=4608
    point 4: sample_number=5289984, stream_offset=8970170, frame_samples=4608
    point 5: sample_number=6612480, stream_offset=11427882, frame_samples=4608
METADATA block #3
  type: 6 (PICTURE)
  is last: false
  length: 271113
  type: 3 (Cover (front))
  MIME type: image/jpeg
  description: 
  width: 1000
  height: 1000
  depth: 24
  colors: 0 (unindexed)
  data length: 271071
  data:
    00000000: FF D8 FF E0 00 10 4A 46 49 46 00 01 02 01 00 48 ÿØÿà..JFIF.....H
...
    000422D0: 2D 31 50 F4 DB AE 28 58 D1 54 0F 0C 55 FF D9 00 -1PôÛ®(XÑT..UÿÙ 
METADATA block #4
  type: 1 (PADDING)
  is last: true
  length: 39619