In transcode 1.1.x, but not in 1.0.x, this hangs when test.mp4 is a
minute long:
transcode -q 0 -y im -F png -x mov,null -i test.mp4 -c
0:01:10-0:01:10.1,0:02:10-0:02:10
That is to say, if more than one frame number given is past the end of
the clip, transcode hangs.
The command of course calls export_im, but I can't tell if that is
really where the problem lies.
gdb is not very informative:
Starting program: /usr/local/bin/transcode -q 0 -o ./ -y im -F png -x
mov,null -i test.mp4 -c 0:01:10-0:01:10.1,0:02:10-0:02:10.1
[Thread debugging using libthread_db enabled]
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
[New Thread 0x7fffe0f6b910 (LWP 27266)]
[New Thread 0x7fffe076a910 (LWP 27267)]
[New Thread 0x7fffdff69910 (LWP 27268)]
[import_mov.so] VIDEO: codec=avc1, fps=29.970, width=448, height=336,
frames=1799
[New Thread 0x7fffdaf1f910 (LWP 27269)]
[New Thread 0x7fffda71e910 (LWP 27270)]
[Thread 0x7fffdaf1f910 (LWP 27269) exited]
[Thread 0x7fffe076a910 (LWP 27267) exited]
[Thread 0x7fffda71e910 (LWP 27270) exited]
and then it just hangs until I interrupt:
^C
Program received signal SIGINT, Interrupt.
[Switching to Thread 0x7fffe0f6b910 (LWP 27266)]
0x00007ffff788321d in pause () from /lib/libpthread.so.0
I've been unable to use 1.1 ever since it was released because of this
problem. Could someone please help me?
strace is perhaps more informative (I can send a full strace if that
would be useful):
write(2, "[\33[34;1mimport_mov.so\33[0m] VIDEO"..., 93[import_mov.so]
VIDEO: codec=avc1, fps=29.970, width=448, height=336,
frames=1799
) =
93
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) =
0x7fbaa8d08000
mprotect(0x7fbaa8d08000, 4096, PROT_NONE) =
0
clone(child_stack=0x7fbaa95081d0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7fbaa95089e0, tls=0x7fbaa9508910,
child_tidptr=0x7fbaa95089e0) =
29452
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) =
0x7fbaa8507000
mprotect(0x7fbaa8507000, 4096, PROT_NONE) =
0
clone(child_stack=0x7fbaa8d071d0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7fbaa8d079e0, tls=0x7fbaa8d07910,
child_tidptr=0x7fbaa8d079e0) =
29453
open("/usr/lib/locale/locale-archive", O_RDONLY) =
4
fstat(4, {st_mode=S_IFREG|0644, st_size=1575552, ...}) =
0
mmap(NULL, 1575552, PROT_READ, MAP_PRIVATE, 4, 0) =
0x7fbaa8386000
close(4) =
0
brk(0x1bfb000) =
0x1bfb000
getcwd("/home/tna/test", 4096) =
15
readlink("/proc/29444/exe", "/usr/local/bin/transcode", 4096) =
24
stat("/usr/local/bin/transcode", {st_mode=S_IFREG|0755, st_size=1134632,
...}) = 0
access("/usr/local/bin/transcode", F_OK) =
0
open("/proc/meminfo", O_RDONLY) =
4
fstat(4, {st_mode=S_IFREG|0444, st_size=0, ...}) =
0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7fbac65e1000
read(4, "MemTotal: 8186476 kB\nMemF"..., 1024) =
1024
close(4) =
0
munmap(0x7fbac65e1000, 4096) =
0
open("/usr/share/ImageMagick-6.6.0/config/policy.xml", O_RDONLY) = -1
ENOENT (No such file or
directory)
open("/usr/lib/ImageMagick-6.6.0/config/policy.xml", O_RDONLY) =
4
lseek(4, 0, SEEK_END) =
1938
mmap(NULL, 1938, PROT_READ, MAP_PRIVATE, 4, 0) =
0x7fbac65e1000
munmap(0x7fbac65e1000, 1938) =
0
close(4) =
0
open("/usr/share/doc/ImageMagick-6.6.0/policy.xml", O_RDONLY) = -1
ENOENT (No such file or
directory)
open("/usr/share/ImageMagick-6.6.0/policy.xml", O_RDONLY) = -1 ENOENT
(No such file or directory)
open("/home/tna/.magick/policy.xml", O_RDONLY) = -1 ENOENT (No such file
or directory)
open("policy.xml", O_RDONLY) = -1 ENOENT (No such file or
directory)
getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) =
0
brk(0x1cc7000) =
0x1cc7000
futex(0x694264, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x694260, {FUTEX_OP_SET, 0,
FUTEX_OP_CMP_GT, 1}) = 1
futex(0x694220, FUTEX_WAKE_PRIVATE, 1) =
1
futex(0x6943e4, FUTEX_WAIT_PRIVATE, 1, NULL) =
0
futex(0x694320, FUTEX_WAKE_PRIVATE, 1) = 0
Once it gets into the futexes, it keeps going until "futex(0x6943e4,
FUTEX_WAIT_PRIVATE, 3593, NULL" and then just sits there.
On an unrelated matter, you may have seen this already --- fixing it
doesn't fix the hang above:
https://bugs.launchpad.net/ubuntu/+source/transcode/+bug/539106 points
out that "A couple of months ago the API of imagemagick has changed and
DestroyConstitute() was replaced by ConstituteComponentTerminus() ."
--- export/export_im.c 2009-02-21 13:01:57.000000000 -0800
+++ export/export_im-new.c 2010-04-21 00:50:33.500311684 -0700
@@ -220,7 +220,7 @@
if(param->flag == TC_VIDEO) {
DestroyImageInfo(image_info);
- DestroyConstitute();
+ ConstituteComponentTerminus();
DestroyMagick();
free(tmp_buffer);
--- filter/filter_logoaway.c 2009-03-28 01:39:08.000000000 -0700
+++ filter/filter_logoaway-new.c 2010-04-21 00:52:45.300310393 -0700
@@ -865,7 +865,7 @@
if (data[instance]->dumpimage != (Image *)NULL) {
DestroyImage(data[instance]->dumpimage);
DestroyImageInfo(data[instance]->dumpimage_info);
- DestroyConstitute();
+ ConstituteComponentTerminus();
}
DestroyExceptionInfo(&data[instance]->exception_info);
DestroyMagick();
Cheers,
Dave
