> ok, at least I managed to get a Dir.Length > 0 using long or short "ad"
> instead of inicb -- whatever that means. "AD" like "allocation descriptor"?
> long or short ADs, or ADs in the INICB? what exactly does that mean?
>
> so:
>
> mkudffs --ad=long --noefe 24M
> or: mkudffs --ad=short --noefe 24M
>
> will get me a step further, but UDFFindFile will now fail at some other place.
back again ...
I've made an observation which I think is somewhat strange ...
(1) make udf filesystem on loopbackimage
bash-2.05# dd if=/dev/zero of=24M bs=1M count=24
24+0 records in
24+0 records out
bash-2.05# mkudffs --vid="The Entropy Movie" --udfrev=0x0102 --ad=short --noefe 24M
start=0, blocks=16, type=RESERVED
start=16, blocks=3, type=VRS
start=19, blocks=237, type=USPACE
start=256, blocks=1, type=ANCHOR
start=257, blocks=16, type=PVDS
start=273, blocks=1, type=LVID
start=274, blocks=11757, type=PSPACE
start=12031, blocks=1, type=ANCHOR
start=12032, blocks=239, type=USPACE
start=12271, blocks=16, type=RVDS
start=12287, blocks=1, type=ANCHOR
bash-2.05# mount -o loop 24M /mnt
bash-2.05# dmesg
UDF-fs INFO UDF 0.9.8.1 (2004/29/09) Mounting volume 'The Entropy Movie', timestamp 2006/06/05 19:02 (1078)
bash-2.05# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda3 1011960 700312 260240 73% /
/dev/hda4 152640480 60730108 84156600 42% /data
/data/root/src/24M 23514 12 23502 1% /mnt
(2) /mnt contains:
bash-2.05# find /mnt
/mnt
/mnt/lost+found
(3) libdvdread will now ...
bash-2.05# ogle 24M
libdvdread: Using libdvdcss version 1.2.9 for DVD access
> UDFFindFile filename=/VIDEO_TS/VIDEO_TS.IFO
UDFFindFile:856
> UDFMapICB
> UDFFileEntry
ad->Length=0
L_EA=0 L_AD=8
before switch: ad->Length=0
flags=0000
flags=>UDFShortAD
after switch: ad->Length=92
< UDFFileEntry, ad->Length=92
< UDFMapICB:530, return 1(ok)
887: File.length=92 token=VIDEO_TS
> UDFScanDir (1) Dir.Length=92 (2) FileName=VIDEO_TS
UDFScanDir:595
enter while: Dir.Length=92
TagID=257 101
filename=
TagID=257 101
filename=lost+found
X UDFScanDir:638
.... will now stop after arriving at the lost+found directory.
please noteice "ad->Length=92".
(4) now, create dvd-files:
bash-2.05# mount -o loop 24M /mnt
bash-2.05# dvdauthor -o /mnt -x foo.xml
DVDAuthor::dvdauthor, version 0.6.11.
...
INFO: dvdauthor creating table of contents
INFO: Scanning /mnt/VIDEO_TS/VTS_01_0.IFO
(5) the image now contains:
bash-2.05# find /mnt
/mnt
/mnt/lost+found
/mnt/VIDEO_TS
/mnt/VIDEO_TS/VTS_01_1.VOB
/mnt/VIDEO_TS/VTS_01_0.IFO
/mnt/VIDEO_TS/VTS_01_0.BUP
/mnt/VIDEO_TS/VIDEO_TS.IFO
/mnt/VIDEO_TS/VIDEO_TS.BUP
/mnt/AUDIO_TS
(6) but this is what libdvdread sees:
bash-2.05# umount /mnt
bash-2.05# ogle 24M
libdvdread: Using libdvdcss version 1.2.9 for DVD access
> UDFFindFile filename=/VIDEO_TS/VIDEO_TS.IFO
UDFFindFile:856
> UDFMapICB
> UDFFileEntry
ad->Length=0
L_EA=0 L_AD=8
before switch: ad->Length=0
flags=0000
flags=>UDFShortAD
after switch: ad->Length=92
< UDFFileEntry, ad->Length=92
< UDFMapICB:530, return 1(ok)
887: File.length=92 token=VIDEO_TS
> UDFScanDir (1) Dir.Length=92 (2) FileName=VIDEO_TS
UDFScanDir:595
enter while: Dir.Length=92
TagID=257 101
filename=
TagID=257 101
filename=lost+found
X UDFScanDir:638
strange - Dir.Length is still 92, same as above in (3), and
libdvdread will stop after reading "lost+found".
(7) remove lost+found and try again:
bash-2.05# mount -o loop 24M /mnt
bash-2.05# rmdir /mnt/lost+found/
bash-2.05# find /mnt
/mnt
/mnt/VIDEO_TS
/mnt/VIDEO_TS/VTS_01_1.VOB
/mnt/VIDEO_TS/VTS_01_0.IFO
/mnt/VIDEO_TS/VTS_01_0.BUP
/mnt/VIDEO_TS/VIDEO_TS.IFO
/mnt/VIDEO_TS/VIDEO_TS.BUP
/mnt/AUDIO_TS
bash-2.05# umount /mnt
bash-2.05# ogle 24M
libdvdread: Using libdvdcss version 1.2.9 for DVD access
> UDFFindFile filename=/VIDEO_TS/VIDEO_TS.IFO
UDFFindFile:856
> UDFMapICB
> UDFFileEntry
ad->Length=0
L_EA=0 L_AD=8
before switch: ad->Length=0
flags=0000
flags=>UDFShortAD
after switch: ad->Length=92
< UDFFileEntry, ad->Length=92
< UDFMapICB:530, return 1(ok)
887: File.length=92 token=VIDEO_TS
> UDFScanDir (1) Dir.Length=92 (2) FileName=VIDEO_TS
UDFScanDir:595
enter while: Dir.Length=92
TagID=257 101
filename=
TagID=257 101
filename=lost+found
X UDFScanDir:638
what? it still stops after "lost+found", which just has been removed?
(8) am I using the wrong image?
bash-2.05# pwd
/data/root/src
bash-2.05# ls -l 24M
-rw-r--r-- 1 root root 25165824 Jun 5 19:02 24M
bash-2.05# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda3 1011960 698656 261896 73% /
/dev/hda4 152640480 60730116 84156592 42% /data
bash-2.05# mount -o loop 24M /mnt
bash-2.05# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda3 1011960 698656 261896 73% /
/dev/hda4 152640480 60730116 84156592 42% /data
/data/root/src/24M 23514 1660 21854 8% /mnt
no. the image libdvd sees is the same that is mounted and that
dvdauthor is operating upon.
what's wrong here?
kind regards,
h.rosmanith
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