[Flac-dev] problems with flac?

Brent A. Musat brentmusat at yahoo.com
Mon Dec 8 22:45:02 PST 2003


So I recently encoded my entire CD collection (over
7000 songs) to flac and I have found that 18 of them
have a strange problem.  The files are corrupted in
some way.. They will stop playing abruptly in the
middle of the song.  I've attached a listing of the
metadata and you'll see what I mean.  

You can see that the seek points toward the end have a
bunch of zeros and I'm not sure how they got there. 
The 18 songs that exhibit this problem are some of my
longer tracks, but not all my long songs have this
problem.  I honestly can't confirm if the original
ripped wav was corrupted or not since it has been
converted to flac!  But the CD's play fine and
subsequent ripping works fine.  
 
Any explanations as to why the data looks this way?
brent...
 

METADATA block #0
type: 0 (STREAMINFO)
is last: false
length: 34
minumum blocksize: 4608 samples
maximum blocksize: 4608 samples
minimum framesize: 2066 bytes
maximum framesize: 13776 bytes
sample_rate: 44100 Hz
channels: 2
bits-per-sample: 16
total samples: 25162872
MD5 signature: 86a3934bfd09db5c9475a6db777ef5b1
METADATA block #1
type: 3 (SEEKTABLE)
is last: false
length: 1278
seek points: 71
point 0: sample_number=0, stream_offset=0,
frame_samples=4608
point 1: sample_number=442368, stream_offset=561277,
frame_samples=4608
point 2: sample_number=889344, stream_offset=1247829,
frame_samples=4608
point 3: sample_number=1331712, stream_offset=1968819,
frame_samples=4608
point 4: sample_number=1778688, stream_offset=2769020,
frame_samples=4608
point 5: sample_number=2225664, stream_offset=3562045,
frame_samples=4608
point 6: sample_number=2668032, stream_offset=4436688,
frame_samples=4608
point 7: sample_number=3115008, stream_offset=5361764,
frame_samples=4608
point 8: sample_number=3557376, stream_offset=6299177,
frame_samples=4608
point 9: sample_number=4004352, stream_offset=7218510,
frame_samples=4608
point 10: sample_number=4451328,
stream_offset=8130322, frame_samples=4608
point 11: sample_number=4893696,
stream_offset=9019715, frame_samples=4608
point 12: sample_number=5340672,
stream_offset=9925284, frame_samples=4608
point 13: sample_number=5783040,
stream_offset=10866230, frame_samples=4608
point 14: sample_number=6230016,
stream_offset=11804097, frame_samples=4608
point 15: sample_number=6676992,
stream_offset=12763027, frame_samples=4608
point 16: sample_number=7119360,
stream_offset=13697427, frame_samples=4608
point 17: sample_number=7566336,
stream_offset=14678162, frame_samples=4608
point 18: sample_number=8013312,
stream_offset=15666864, frame_samples=4608
point 19: sample_number=8455680,
stream_offset=16658074, frame_samples=4608
point 20: sample_number=8902656,
stream_offset=17775669, frame_samples=4608
point 21: sample_number=9345024,
stream_offset=18833766, frame_samples=4608
point 22: sample_number=9792000,
stream_offset=19910747, frame_samples=4608
point 23: sample_number=10238976,
stream_offset=21009208, frame_samples=4608
point 24: sample_number=10681344,
stream_offset=21912358, frame_samples=4608
point 25: sample_number=11128320,
stream_offset=22862846, frame_samples=4608
point 26: sample_number=11570688,
stream_offset=23865225, frame_samples=4608
point 27: sample_number=12017664,
stream_offset=24813344, frame_samples=4608
point 28: sample_number=12464640,
stream_offset=25766436, frame_samples=4608
point 29: sample_number=12907008,
stream_offset=26687110, frame_samples=4608
point 30: sample_number=13353984,
stream_offset=27718525, frame_samples=4608
point 31: sample_number=13800960,
stream_offset=28674821, frame_samples=4608
point 32: sample_number=14243328,
stream_offset=29710129, frame_samples=4608
point 33: sample_number=14690304,
stream_offset=30755410, frame_samples=4608
point 34: sample_number=15132672,
stream_offset=31712626, frame_samples=4608
point 35: sample_number=15579648,
stream_offset=32737243, frame_samples=4608
point 36: sample_number=16026624,
stream_offset=33783292, frame_samples=4608
point 37: sample_number=16468992,
stream_offset=34774351, frame_samples=4608
point 38: sample_number=16915968,
stream_offset=35838458, frame_samples=4608
point 39: sample_number=17358336,
stream_offset=36777690, frame_samples=4608
point 40: sample_number=17805312,
stream_offset=37823998, frame_samples=4608
point 41: sample_number=18252288,
stream_offset=38768946, frame_samples=4608
point 42: sample_number=18694656,
stream_offset=39630639, frame_samples=4608
point 43: sample_number=19141632,
stream_offset=40415298, frame_samples=4608
point 44: sample_number=19588608,
stream_offset=41238609, frame_samples=4608
point 45: sample_number=20030976,
stream_offset=42105849, frame_samples=4608
point 46: sample_number=20477952,
stream_offset=43023889, frame_samples=4608
point 47: sample_number=20920320,
stream_offset=43962398, frame_samples=4608
point 48: sample_number=21367296,
stream_offset=44921096, frame_samples=4608
point 49: sample_number=21814272,
stream_offset=45900520, frame_samples=4608
point 50: sample_number=22256640,
stream_offset=46861204, frame_samples=4608
point 51: sample_number=22703616,
stream_offset=47757774, frame_samples=4608
point 52: sample_number=23145984,
stream_offset=48567845, frame_samples=4608
point 53: sample_number=23592960,
stream_offset=49387813, frame_samples=4608
point 54: sample_number=24039936,
stream_offset=50213502, frame_samples=4608
point 55: sample_number=24482304,
stream_offset=51025134, frame_samples=4608
point 56: sample_number=24929280,
stream_offset=51859435, frame_samples=4608
point 57: sample_number=25376332, stream_offset=0,
frame_samples=0
point 58: sample_number=25821531, stream_offset=0,
frame_samples=0
point 59: sample_number=26266730, stream_offset=0,
frame_samples=0
point 60: sample_number=26711929, stream_offset=0,
frame_samples=0
point 61: sample_number=27157127, stream_offset=0,
frame_samples=0
point 62: sample_number=27602326, stream_offset=0,
frame_samples=0
point 63: sample_number=28047525, stream_offset=0,
frame_samples=0
point 64: sample_number=28492724, stream_offset=0,
frame_samples=0
point 65: sample_number=28937923, stream_offset=0,
frame_samples=0
point 66: sample_number=29383121, stream_offset=0,
frame_samples=0
point 67: sample_number=29828320, stream_offset=0,
frame_samples=0
point 68: sample_number=30273519, stream_offset=0,
frame_samples=0
point 69: sample_number=30718718, stream_offset=0,
frame_samples=0
point 70: sample_number=31163917, stream_offset=0,
frame_samples=0
METADATA block #2
type: 4 (VORBIS_COMMENT)
is last: false
length: 296
vendor string: reference libFLAC 1.1.0 20030126
comments: 9
comment[0]: REPLAYGAIN_TRACK_PEAK=0.89843750
comment[1]: REPLAYGAIN_TRACK_GAIN=-5.67 dB
comment[2]: REPLAYGAIN_ALBUM_PEAK=0.89843750
comment[3]: REPLAYGAIN_ALBUM_GAIN=-5.67 dB
comment[4]: TITLE=A Saucerful of Secrets
comment[5]: ARTIST=Pink Floyd
comment[6]: ALBUM=A Saucerful of Secrets
comment[7]: TRACKNUMBER=05
comment[8]: DATE=1968
METADATA block #3
type: 1 (PADDING)
is last: true
length: 3988

-------------- next part --------------
METADATA block #0
  type: 0 (STREAMINFO)
  is last: false
  length: 34
  minumum blocksize: 4608 samples
  maximum blocksize: 4608 samples
  minimum framesize: 2066 bytes
  maximum framesize: 13776 bytes
  sample_rate: 44100 Hz
  channels: 2
  bits-per-sample: 16
  total samples: 25162872
  MD5 signature: 86a3934bfd09db5c9475a6db777ef5b1
METADATA block #1
  type: 3 (SEEKTABLE)
  is last: false
  length: 1278
  seek points: 71
    point 0: sample_number=0, stream_offset=0, frame_samples=4608
    point 1: sample_number=442368, stream_offset=561277, frame_samples=4608
    point 2: sample_number=889344, stream_offset=1247829, frame_samples=4608
    point 3: sample_number=1331712, stream_offset=1968819, frame_samples=4608
    point 4: sample_number=1778688, stream_offset=2769020, frame_samples=4608
    point 5: sample_number=2225664, stream_offset=3562045, frame_samples=4608
    point 6: sample_number=2668032, stream_offset=4436688, frame_samples=4608
    point 7: sample_number=3115008, stream_offset=5361764, frame_samples=4608
    point 8: sample_number=3557376, stream_offset=6299177, frame_samples=4608
    point 9: sample_number=4004352, stream_offset=7218510, frame_samples=4608
    point 10: sample_number=4451328, stream_offset=8130322, frame_samples=4608
    point 11: sample_number=4893696, stream_offset=9019715, frame_samples=4608
    point 12: sample_number=5340672, stream_offset=9925284, frame_samples=4608
    point 13: sample_number=5783040, stream_offset=10866230, frame_samples=4608
    point 14: sample_number=6230016, stream_offset=11804097, frame_samples=4608
    point 15: sample_number=6676992, stream_offset=12763027, frame_samples=4608
    point 16: sample_number=7119360, stream_offset=13697427, frame_samples=4608
    point 17: sample_number=7566336, stream_offset=14678162, frame_samples=4608
    point 18: sample_number=8013312, stream_offset=15666864, frame_samples=4608
    point 19: sample_number=8455680, stream_offset=16658074, frame_samples=4608
    point 20: sample_number=8902656, stream_offset=17775669, frame_samples=4608
    point 21: sample_number=9345024, stream_offset=18833766, frame_samples=4608
    point 22: sample_number=9792000, stream_offset=19910747, frame_samples=4608
    point 23: sample_number=10238976, stream_offset=21009208, frame_samples=4608
    point 24: sample_number=10681344, stream_offset=21912358, frame_samples=4608
    point 25: sample_number=11128320, stream_offset=22862846, frame_samples=4608
    point 26: sample_number=11570688, stream_offset=23865225, frame_samples=4608
    point 27: sample_number=12017664, stream_offset=24813344, frame_samples=4608
    point 28: sample_number=12464640, stream_offset=25766436, frame_samples=4608
    point 29: sample_number=12907008, stream_offset=26687110, frame_samples=4608
    point 30: sample_number=13353984, stream_offset=27718525, frame_samples=4608
    point 31: sample_number=13800960, stream_offset=28674821, frame_samples=4608
    point 32: sample_number=14243328, stream_offset=29710129, frame_samples=4608
    point 33: sample_number=14690304, stream_offset=30755410, frame_samples=4608
    point 34: sample_number=15132672, stream_offset=31712626, frame_samples=4608
    point 35: sample_number=15579648, stream_offset=32737243, frame_samples=4608
    point 36: sample_number=16026624, stream_offset=33783292, frame_samples=4608
    point 37: sample_number=16468992, stream_offset=34774351, frame_samples=4608
    point 38: sample_number=16915968, stream_offset=35838458, frame_samples=4608
    point 39: sample_number=17358336, stream_offset=36777690, frame_samples=4608
    point 40: sample_number=17805312, stream_offset=37823998, frame_samples=4608
    point 41: sample_number=18252288, stream_offset=38768946, frame_samples=4608
    point 42: sample_number=18694656, stream_offset=39630639, frame_samples=4608
    point 43: sample_number=19141632, stream_offset=40415298, frame_samples=4608
    point 44: sample_number=19588608, stream_offset=41238609, frame_samples=4608
    point 45: sample_number=20030976, stream_offset=42105849, frame_samples=4608
    point 46: sample_number=20477952, stream_offset=43023889, frame_samples=4608
    point 47: sample_number=20920320, stream_offset=43962398, frame_samples=4608
    point 48: sample_number=21367296, stream_offset=44921096, frame_samples=4608
    point 49: sample_number=21814272, stream_offset=45900520, frame_samples=4608
    point 50: sample_number=22256640, stream_offset=46861204, frame_samples=4608
    point 51: sample_number=22703616, stream_offset=47757774, frame_samples=4608
    point 52: sample_number=23145984, stream_offset=48567845, frame_samples=4608
    point 53: sample_number=23592960, stream_offset=49387813, frame_samples=4608
    point 54: sample_number=24039936, stream_offset=50213502, frame_samples=4608
    point 55: sample_number=24482304, stream_offset=51025134, frame_samples=4608
    point 56: sample_number=24929280, stream_offset=51859435, frame_samples=4608
    point 57: sample_number=25376332, stream_offset=0, frame_samples=0
    point 58: sample_number=25821531, stream_offset=0, frame_samples=0
    point 59: sample_number=26266730, stream_offset=0, frame_samples=0
    point 60: sample_number=26711929, stream_offset=0, frame_samples=0
    point 61: sample_number=27157127, stream_offset=0, frame_samples=0
    point 62: sample_number=27602326, stream_offset=0, frame_samples=0
    point 63: sample_number=28047525, stream_offset=0, frame_samples=0
    point 64: sample_number=28492724, stream_offset=0, frame_samples=0
    point 65: sample_number=28937923, stream_offset=0, frame_samples=0
    point 66: sample_number=29383121, stream_offset=0, frame_samples=0
    point 67: sample_number=29828320, stream_offset=0, frame_samples=0
    point 68: sample_number=30273519, stream_offset=0, frame_samples=0
    point 69: sample_number=30718718, stream_offset=0, frame_samples=0
    point 70: sample_number=31163917, stream_offset=0, frame_samples=0
METADATA block #2
  type: 4 (VORBIS_COMMENT)
  is last: false
  length: 296
  vendor string: reference libFLAC 1.1.0 20030126
  comments: 9
    comment[0]: REPLAYGAIN_TRACK_PEAK=0.89843750
    comment[1]: REPLAYGAIN_TRACK_GAIN=-5.67 dB
    comment[2]: REPLAYGAIN_ALBUM_PEAK=0.89843750
    comment[3]: REPLAYGAIN_ALBUM_GAIN=-5.67 dB
    comment[4]: TITLE=A Saucerful of Secrets
    comment[5]: ARTIST=Pink Floyd
    comment[6]: ALBUM=A Saucerful of Secrets
    comment[7]: TRACKNUMBER=05
    comment[8]: DATE=1968
METADATA block #3
  type: 1 (PADDING)
  is last: true
  length: 3988


More information about the Flac-dev mailing list