Konqueror movie thumbnails

Wed Dec 28 22:54:54 GMT 2005

How does Konqueror create movie thumbnails?
I want to modify the settings. (e.g. take a thumbnail at 1 minute, or better
at the half of the movie)
But i can't figure out how and where to do this.

Here is an strace from thumbnail creating in konqueror

open("/home/xkasi/.thumbnails/normal/918d7ca52ea7107b623c59005e83768f.png",
O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
gettimeofday({1135809586, 88579}, NULL) = 0
gettimeofday({1135809586, 88885}, NULL) = 0
write(13, "    f0_50_\0\0\0\7\0\0\0\f\0h\0e\0i\0g\0h\0t\0\0"..., 250) = 250
write(13, "    9b_43_\0\0\0\22\0t\0h\0u\0m\0b\0n\0a\0i\0l"..., 165) = 165
gettimeofday({1135809586, 89307}, NULL) = 0
ioctl(4, FIONREAD, [0])                 = 0
gettimeofday({1135809586, 89413}, NULL) = 0
select(23, [4 5 6 8 10 13 14 16 17 18 19 20 21 22], [], [], {0, 46555}) = 1
(in [4], left {0, 15000})
gettimeofday({1135809586, 124807}, NULL) = 0
ioctl(4, FIONREAD, [32])                = 0
read(4, "\34\263\36la\0\0\0=\1\0\0\262\347\220\2\0\0\0\0\v\0\0\0"..., 32) =
32
ioctl(4, FIONREAD, [0])                 = 0
ioctl(4, FIONREAD, [0])                 = 0
gettimeofday({1135809586, 127724}, NULL) = 0
select(23, [4 5 6 8 10 13 14 16 17 18 19 20 21 22], [], [], {0, 8244}) = 0
(Timeout)
gettimeofday({1135809586, 137016}, NULL) = 0
gettimeofday({1135809586, 137301}, NULL) = 0
write(4, ";\3\5\0\314\3`\0\0\0\0\0\0\0\0\0\30\0\30\0;\3\5\0\332\3"..., 372)
= 372
ioctl(4, FIONREAD, [0])                 = 0
gettimeofday({1135809586, 137668}, NULL) = 0
select(23, [4 5 6 8 10 13 14 16 17 18 19 20 21 22], [], [], {0, 48300}) = 1
(in [4], left {0, 24000})
gettimeofday({1135809586, 162371}, NULL) = 0
ioctl(4, FIONREAD, [32])                = 0
read(4, "\34\2632la\0\0\0=\1\0\0\333\347\220\2\0\0\0\0\v\0\0\0\270"..., 32)
= 32
ioctl(4, FIONREAD, [0])                 = 0
ioctl(4, FIONREAD, [0])                 = 0
gettimeofday({1135809586, 162662}, NULL) = 0
select(23, [4 5 6 8 10 13 14 16 17 18 19 20 21 22], [], [], {0, 23306}) = 0
(Timeout)
gettimeofday({1135809586, 186029}, NULL) = 0
gettimeofday({1135809586, 186303}, NULL) = 0
write(4, ";\3\5\0\314\3`\0\0\0\0\0\0\0\0\0\30\0\30\0;\3\5\0\332\3"..., 372)
= 372
ioctl(4, FIONREAD, [0])                 = 0
gettimeofday({1135809586, 186776}, NULL) = 0
select(23, [4 5 6 8 10 13 14 16 17 18 19 20 21 22], [], [], {0, 49192}) = 0
(Timeout)
gettimeofday({1135809586, 237009}, NULL) = 0
gettimeofday({1135809586, 237293}, NULL) = 0
write(4, ";\3\5\0\314\3`\0\0\0\0\0\0\0\0\0\30\0\30\0;\3\5\0\332\3"..., 372)
= 372
ioctl(4, FIONREAD, [0])                 = 0
gettimeofday({1135809586, 237724}, NULL) = 0
select(23, [4 5 6 8 10 13 14 16 17 18 19 20 21 22], [], [], {0, 48244}) = 0
(Timeout)
gettimeofday({1135809586, 287000}, NULL) = 0
gettimeofday({1135809586, 287272}, NULL) = 0
write(4, ";\3\5\0\314\3`\0\0\0\0\0\0\0\0\0\30\0\30\0;\3\5\0\332\3"..., 372)
= 372
ioctl(4, FIONREAD, [0])                 = 0
gettimeofday({1135809586, 287674}, NULL) = 0
select(23, [4 5 6 8 10 13 14 16 17 18 19 20 21 22], [], [], {0, 48294}) = 1
(in [13], left {0, 23000})
read(13, "     d_64_", 10)              = 10
read(13, "\0\0\0\200\0\0\0`\0\0\0 \0", 13) = 13
open("/home/xkasi/.thumbnails/normal/kde-tmp-b9UQfc.png",
O_RDWR|O_CREAT|O_EXCL, 0600) = 24
umask(0)                                = 02
umask(02)                               = 0
fchmod(24, 0600)                        = 0
getgid32()                              = 500
getuid32()                              = 500
fchown32(24, 500, 500)                  = 0
fcntl64(24, F_SETFD, FD_CLOEXEC)        = 0
open("/home/xkasi/.thumbnails/normal/kde-tmp-b9UQfc.png",
O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = 25
fstat64(25, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
fstat64(25, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0xb6861000
write(25, "\211PNG\r\n\32\n\0\0\0\rIHDR\0\0\0\200\0\0\0`\10\2\0\0"..., 4096)
= 4096
write(25, "\244\22\335^\326\37t\373\375>#(\367G\214 at 0\246\204L33\\"...,
4096) = 4096
write(25, "\0\7\260\0r\346\347!\242\365\216\373p\355\372fc\333\225"...,
4096) = 4096
write(25, "\367\362\242\227w\6\305[8\3727~\3437b\214oS\271\2)\222"..., 4096)
= 4096
write(25, "\370_\177\376o\377\324O\377I\vp\0339:\347\354\3\1\30\230"...,
3815) = 3815
close(25)                               = 0
munmap(0xb6861000, 4096)                = 0
rename("/home/xkasi/.thumbnails/normal/kde-tmp-b9UQfc.png",
"/home/xkasi/.thumbnails/normal/918d7ca52ea7107b623c59005e83768f.png") = 0
close(24)                               = 0

THX for any suggestions
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