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[liboggz] oggz-info reports incorrect duration for chained files
Hi, all
I have: libvorbis-1.2.3 vorbis-tools-1.2.0 libogg-1.1.4 liboggz-0.9.9 installed on my system.
The problem is that oggz-info unable to detect "Content-Duration" correctly. As the result "Content-Bitrate-Average" is also incorrect. Also slightly different bitrate detection by ogginfo and oggz-info seems strange to me.
Here is an example:
lxuser@garik:~/oggz-bug$ ls
test0.ogg test1.ogg
lxuser@garik:~/oggz-bug$ LANG=C ogginfo *.ogg
Processing file "test0.ogg"...
New logical stream (#1, serial: 7f1f032f): type vorbis
Vorbis headers parsed for stream 1, information follows...
Version: 0
Vendor: Xiph.Org libVorbis I 20090624
Channels: 2
Rate: 44100
Nominal bitrate: 288.000000 kb/s
Upper bitrate not set
Lower bitrate not set
Vorbis stream 1:
Total data length: 1984900 bytes
Playback length: 0m:55.546s
Average bitrate: 285.871339 kb/s
Logical stream 1 ended
Processing file "test1.ogg"...
New logical stream (#1, serial: 7f1f0330): type vorbis
Vorbis headers parsed for stream 1, information follows...
Version: 0
Vendor: Xiph.Org libVorbis I 20090624
Channels: 2
Rate: 44100
Nominal bitrate: 288.000000 kb/s
Upper bitrate not set
Lower bitrate not set
Vorbis stream 1:
Total data length: 10962852 bytes
Playback length: 4m:07.520s
Average bitrate: 354.326180 kb/s
Logical stream 1 ended
lxuser@garik:~/oggz-bug$ oggz-info -a *.ogg
Filename: test0.ogg
Content-Duration: 00:00:55.546
Content-Length: 1.897 MB
Content-Bitrate-Average: 286.452 kbps
Vorbis: serialno 2132738863
4617 packets in 467 pages, 9.9 packets/page, 1.098% Ogg overhead
Content-Length: 1.897 MB
Content-Bitrate-Average: 286.452 kbps
Audio-Samplerate: 44100 Hz
Audio-Channels: 2
Page-Length-Maximum: 4.302 kB
Page-Length-StdDev: 230 bytes
Packet-Length-Maximum: 3.771 kB
Packet-Length-StdDev: 304 bytes
------------------------------------------------------------
Filename: test1.ogg
Content-Duration: 00:04:07.520
Content-Length: 10.459 MB
Content-Bitrate-Average: 354.455 kbps
Vorbis: serialno 2132738864
30765 packets in 2577 pages, 11.9 packets/page, 1.116% Ogg overhead
Content-Length: 10.459 MB
Content-Bitrate-Average: 354.455 kbps
Audio-Samplerate: 44100 Hz
Audio-Channels: 2
Page-Length-Maximum: 4.297 kB
Page-Length-StdDev: 111 bytes
Packet-Length-Maximum: 3.771 kB
Packet-Length-StdDev: 298 bytes
lxuser@garik:~/oggz-bug$ cat test0.ogg test1.ogg > test.ogg
lxuser@garik:~/oggz-bug$ LANG=C ogginfo test.ogg
Processing file "test.ogg"...
New logical stream (#1, serial: 7f1f032f): type vorbis
Vorbis headers parsed for stream 1, information follows...
Version: 0
Vendor: Xiph.Org libVorbis I 20090624
Channels: 2
Rate: 44100
Nominal bitrate: 288.000000 kb/s
Upper bitrate not set
Lower bitrate not set
Vorbis stream 1:
Total data length: 1984900 bytes
Playback length: 0m:55.546s
Average bitrate: 285.871339 kb/s
Logical stream 1 ended
New logical stream (#2, serial: 7f1f0330): type vorbis
Vorbis headers parsed for stream 2, information follows...
Version: 0
Vendor: Xiph.Org libVorbis I 20090624
Channels: 2
Rate: 44100
Nominal bitrate: 288.000000 kb/s
Upper bitrate not set
Lower bitrate not set
Vorbis stream 2:
Total data length: 10962852 bytes
Playback length: 4m:07.520s
Average bitrate: 354.326180 kb/s
Logical stream 2 ended
lxuser@garik:~/oggz-bug$ oggz-info -a test.ogg
Content-Duration: 00:04:07.520
Content-Length: 12.356 MB
Content-Bitrate-Average: 418.738 kbps
Vorbis: serialno 2132738863
4617 packets in 467 pages, 9.9 packets/page, 1.098% Ogg overhead
Content-Length: 1.897 MB
Content-Bitrate-Average: 64.282 kbps
Audio-Samplerate: 44100 Hz
Audio-Channels: 2
Page-Length-Maximum: 4.302 kB
Page-Length-StdDev: 230 bytes
Packet-Length-Maximum: 3.771 kB
Packet-Length-StdDev: 304 bytes
Vorbis: serialno 2132738864
30765 packets in 2577 pages, 11.9 packets/page, 1.116% Ogg overhead
Content-Length: 10.459 MB
Content-Bitrate-Average: 354.455 kbps
Audio-Samplerate: 44100 Hz
Audio-Channels: 2
Page-Length-Maximum: 4.297 kB
Page-Length-StdDev: 111 bytes
Packet-Length-Maximum: 3.771 kB
Packet-Length-StdDev: 298 bytes