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View Full Version : Browser refresh causes AAC cut-offs (5.4.1)



Michael Robinson
2005-03-21, 13:20
>>Is there any debug information I could collect to assist with this?

>Yes - could you turn on the following debug options:
>
>--d_info & --d_itunes
>
>Thanks.
>
>-D

Dan,

Please see info below that I hope may be useful.

The first set of traces are for an AAC file (Moby) where cut-offs occur
every 30-40 seconds and seem to be linked to the browser refresh.

I haven¹t a clue what these mean however you can see a set of messages
saying ³Request for ...² every 30-40 seconds. A second or so after the
³Request for ...² messages, you can see the ³Underrun while this mode: play²
message which I¹m guessing means a cut-off.

The second set of traces are for a MP3 file (Faithless) where cut-offs do
not occur.

The ³Request for...² messages also occur every 30-40 seconds. The MP3 logs
show less ³Request for..² messages than the AAC logs * the MP3 logs have 37
³Request for...² messages while the AAC logs have 43 ³Request for...²
messages. The sequence appears to be the same except the AAC logs have more
³Request for CT on file...² messages.

Hope this makes sense!

AAC file * cut-offs occur every 30-40 seconds after browser refresh


2005-03-21 17:12:36.4235 canUseiTunesLibrary().
2005-03-21 17:12:36.4433 using itunes library: 1
2005-03-21 17:12:41.4458 canUseiTunesLibrary().
2005-03-21 17:12:41.4480 using itunes library: 1
2005-03-21 17:12:44.0210 Request for SECS on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1018 Request for FS on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1038 Request for FS on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1068 Request for GENRE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1088 Request for ARTIST on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1110 Request for COMPOSER on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1135 Request for BAND on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1160 Request for CONDUCTOR on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1180 Request for ALBUM on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1200 Request for TITLE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1248 Request for SECS on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1269 Request for DISC on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1288 Request for BPM on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1310 Request for TRACKNUM on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1369 Request for YEAR on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1390 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1410 Request for TAGVERSION on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1479 Request for MOODLOGIC_SONG_MIXABLE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1500 Request for VBR_SCALE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1525 Request for BITRATE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1541 Request for BITRATE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1566 Request for DRM on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1588 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.1608 Request for COVER on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.2209 Request for THUMB on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.2230 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44 32005-03-21 17:12:44.2870 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.2890 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.2909 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.2929 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.3389 found JPEG image
2005-03-21 17:12:44.3467 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.3510 Request for COVER on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.3529 Request for THUMB on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.3550 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44 32005-03-21 17:12:44.3766 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.3798 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.3819 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.3987 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.4966 found JPEG image
2005-03-21 17:12:44.5030 Request for AGE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.5059 Request for AGE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.5088 Request for COMMENT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.5109 Request for COMMENT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:44.5155 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Moby/Hotel/04%20Li
ft%20Me%20Up.m4a
2005-03-21 17:12:46.1015 00:04:20:05:04:d6: Underrun while this mode: play
2005-03-21 17:12:46.5207 canUseiTunesLibrary().
2005-03-21 17:12:46.5227 using itunes library: 1
2005-03-21 17:12:51.7894 canUseiTunesLibrary().
2005-03-21 17:12:51.8006 using itunes library: 1
2005-03-21 17:12:56.9939 canUseiTunesLibrary().
2005-03-21 17:12:56.9950 using itunes library: 1
2005-03-21 17:13:01.9970 canUseiTunesLibrary().
2005-03-21 17:13:01.9984 using itunes library: 1
2005-03-21 17:13:07.0041 canUseiTunesLibrary().
2005-03-21 17:13:07.0182 using itunes library: 1


MP3 file * cut-offs do not occur

2005-03-21 17:16:00.1656 using itunes library: 1
2005-03-21 17:16:05.1719 canUseiTunesLibrary().
2005-03-21 17:16:05.2707 using itunes library: 1
2005-03-21 17:16:10.2737 canUseiTunesLibrary().
2005-03-21 17:16:10.2761 using itunes library: 1
2005-03-21 17:16:15.3795 canUseiTunesLibrary().
2005-03-21 17:16:15.3807 using itunes library: 1
2005-03-21 17:16:20.3913 canUseiTunesLibrary().
2005-03-21 17:16:20.3932 using itunes library: 1
2005-03-21 17:16:21.1518 Request for SECS on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1557 Request for FS on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1580 Request for FS on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1602 Request for GENRE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1800 Request for ARTIST on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1823 Request for COMPOSER on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1858 Request for BAND on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1879 Request for CONDUCTOR on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1921 Request for ALBUM on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1941 Request for TITLE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.1989 Request for SECS on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.2010 Request for DISC on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.2030 Request for BPM on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4192 Request for TRACKNUM on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4212 Request for YEAR on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4233 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4258 Request for TAGVERSION on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4279 Request for MOODLOGIC_SONG_MIXABLE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4301 Request for VBR_SCALE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4322 Request for BITRATE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4342 Request for BITRATE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4362 Request for DRM on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4402 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4551 Request for COVER on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4572 Request for THUMB on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.4594 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21 32005-03-21 17:16:21.4674 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.5174 found JPEG image
2005-03-21 17:16:21.5269 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.5303 Request for COVER on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.5322 Request for THUMB on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.5343 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21 32005-03-21 17:16:21.5518 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.8183 found JPEG image
2005-03-21 17:16:21.8263 Request for AGE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.8298 Request for AGE on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.8908 Request for COMMENT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.8928 Request for COMMENT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:21.8979 Request for CT on file
file:///Users/michaelrobinson/Music/iTunes/iTunes%20Music/Faithless/No%20Roo
ts/02%20Mass%20Destruction.mp3
2005-03-21 17:16:25.5719 canUseiTunesLibrary().
2005-03-21 17:16:25.5740 using itunes library: 1
2005-03-21 17:16:30.6691 canUseiTunesLibrary().
2005-03-21 17:16:30.6735 using itunes library: 1
2005-03-21 17:16:35.6776 canUseiTunesLibrary().
2005-03-21 17:16:35.6945 using itunes library: 1
2005-03-21 17:16:40.7872 canUseiTunesLibrary().