** Patch added: "vorbis-tools.ignorelength.diff"
https://bugs.launchpad.net/bugs/700720/+attachment/1789314/+files/vorbis-tools.ignorelength.diff
** Description changed:
Binary package hint: vorbis-tools
oggenc ignores the command line switch --ignorelength, which should
enable it to process WAV files bigger than 2GB. In the current maverick
version (also in the upstream trunk) dumping a DVD 5.1 audio track with
mplayer and feeding the WAV to oggenc will stop encoding always exactly
after 62 minutes of audio, or to be more precise after 3728.2 seconds.
Usual command line is:
$ mkfifo ./tmp/fifo
$ oggenc --ignorelength -q1.9 -o tmp/audio.ogg ./tmp/fifo &
$ mplayer -really-quiet -channels 6 -aid 128 -ao pcm:fast:file=./tmp/fifo
dvd://1
WARNING: WAV file uses side surround instead of rear for 5.1;
remapping side speakers to rear in encoding.
Opening with wav module: WAV file reader
- Encoding "/home/lnieves/tmp/tmp/fifo" to
- "/home/lnieves/tmp/audio.ogg"
+ Encoding "/home/lnieves/tmp/tmp/fifo" to
+ "/home/lnieves/tmp/audio.ogg"
at quality 1.90
- [100.0%] [ 0m00s remaining] \
+ [100.0%] [ 0m00s remaining] \
Done encoding file "/home/lnieves/tmp/audio.ogg"
- File length: 62m 08.0s
- Elapsed time: 7m 55.9s
- Rate: 7.8349
- Average bitrate: 167.3 kb/s
+ File length: 62m 08.0s
+ Elapsed time: 7m 55.9s
+ Rate: 7.8349
+ Average bitrate: 167.3 kb/s
The original audio track is, of course, longer than 62:08 minutes. In
this case, the track is 163 minutes, but I have tested with other DVDs
always getting the same 62:08 minutes of resulting vorbis encoded.
The problem is that mplayer sets the size on the WAV header to 2GB and
oggenc then stops when it reaches that point.
2 GB corresponds to 62 minutes for 48 kHz, 6 channels, 16 bits/sample
2*1024³/(48000*6*2) = 3728.27 s = 62m08.27s.
I attach a patch for vorbis-tools-1.4.0/oggenc/audio.c after which the
same command above processes the full audio track:
$ oggenc --ignorelength -q1.9 -o tmp/audio.ogg ./tmp/fifo &
$ mplayer -really-quiet -channels 6 -aid 128 -ao pcm:fast:file=./tmp/fifo
dvd://1
WARNING: WAV file uses side surround instead of rear for 5.1;
remapping side speakers to rear in encoding.
Opening with wav module: WAV file reader
- Encoding "/home/lnieves/audio" to
- "/home/lnieves/tmp/tmp/audio.ogg"
+ Encoding "/home/lnieves/audio" to
+ "/home/lnieves/tmp/tmp/audio.ogg"
at quality 1.90
- Encoding [21m21s so far] -
+ Encoding [21m21s so far] -
Done encoding file "/home/lnieves/tmp/tmp/audio.ogg"
- File length: 163m 17.0s
- Elapsed time: 21m 21.3s
- Rate: 7.6461
- Average bitrate: 167.7 kb/s
+ File length: 163m 17.0s
+ Elapsed time: 21m 21.3s
+ Rate: 7.6461
+ Average bitrate: 167.7 kb/s
This change, by the way, was at some point included in trunk, revision
- 15303:
+ 15003:
https://trac.xiph.org/browser/trunk/vorbis-
tools/oggenc/audio.c?rev=15003
But it was reversed sometime afterwards
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: vorbis-tools 1.4.0-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
Uname: Linux 2.6.35-24-generic x86_64
Architecture: amd64
Date: Sun Jan 9 16:19:43 2011
InstallationMedia: Xubuntu 10.04 "Lucid Lynx" - Release amd64 (20100429)
ProcEnviron:
- PATH=(custom, user)
- LANG=en_US.utf8
- SHELL=/bin/bash
+ PATH=(custom, user)
+ LANG=en_US.utf8
+ SHELL=/bin/bash
SourcePackage: vorbis-tools
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https://bugs.launchpad.net/bugs/700720
Title:
oggenc ignores --ignorelength switch, unable to process Large Wav files
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