[FFmpeg-trac] #2581(avformat:new): mmsh seeking crashes ffmpeg
FFmpeg
trac at avcodec.org
Fri May 17 10:04:32 CEST 2013
#2581: mmsh seeking crashes ffmpeg
-------------------------------------+-------------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: important | Component: avformat
Version: git- | Keywords: mms crash
master | SIGSEGV regression
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
-------------------------------------+-------------------------------------
Ticket #358 - seeking mmsh does not work - is reproducible again since
7b0b10c (with ffmpeg), currently crashes:
{{{
$ (gdb) r -ss 20 -i "mmsh://straumod.nrk.no/disk11/Supermorgen/2011-03-11
/MSUS54000411AA-1Mbit.wmv?UseSilverlight=1" -qscale 2 out.avi
Starting program: ffmpeg_g -ss 20 -i
"mmsh://straumod.nrk.no/disk11/Supermorgen/2011-03-11/MSUS54000411AA-
1Mbit.wmv?UseSilverlight=1" -qscale 2 out.avi
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
ffmpeg version N-53170-g17989dc Copyright (c) 2000-2013 the FFmpeg
developers
built on May 17 2013 09:58:53 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 32.100 / 52. 32.100
libavcodec 55. 9.100 / 55. 9.100
libavformat 55. 7.100 / 55. 7.100
libavdevice 55. 0.100 / 55. 0.100
libavfilter 3. 68.101 / 3. 68.101
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
Read data packet header failed!
Get http header data failed!
mmsh://straumod.nrk.no/disk11/Supermorgen/2011-03-11/MSUS54000411AA-
1Mbit.wmv?UseSilverlight=1: could not seek to position 20.000
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, asf, from 'mmsh://straumod.nrk.no/disk11/Supermorgen/2011-03-11
/MSUS54000411AA-1Mbit.wmv?UseSilverlight=1':
Metadata:
artist : NRK
copyright : NRK
WMFSDKNeeded : 0.0.0.0000
DeviceConformanceTemplate: L1
WM/WMADRCPeakReference: 12325
WM/WMADRCAverageReference: 3248
WMFSDKVersion : 10.00.00.4007
IsVBR : 0
Duration: 00:02:37.80, start: 0.000000, bitrate: N/A
Stream #0:0(nor): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p,
768x432, 896 kb/s, 25 tbr, 1k tbn, 1k tbc
Stream #0:1(nor): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz,
stereo, fltp, 128 kb/s
Please use -q:a or -q:v, -qscale is ambiguous
[New Thread 0x7ffff5d35700 (LWP 23405)]
[New Thread 0x7ffff5534700 (LWP 23406)]
[New Thread 0x7ffff4d33700 (LWP 23407)]
[New Thread 0x7ffff4532700 (LWP 23408)]
[New Thread 0x7ffff3d31700 (LWP 23409)]
[New Thread 0x7ffff3530700 (LWP 23410)]
[New Thread 0x7ffff2d2f700 (LWP 23411)]
[New Thread 0x7ffff252e700 (LWP 23412)]
[New Thread 0x7ffff1d2d700 (LWP 23413)]
Output #0, avi, to 'out.avi':
Metadata:
IART : NRK
ICOP : NRK
WMFSDKNeeded : 0.0.0.0000
DeviceConformanceTemplate: L1
WM/WMADRCPeakReference: 12325
WM/WMADRCAverageReference: 3248
WMFSDKVersion : 10.00.00.4007
IsVBR : 0
ISFT : Lavf55.7.100
Stream #0:0(nor): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 768x432,
q=2-31, 200 kb/s, 25 tbn, 25 tbc
Stream #0:1(nor): Audio: ac3 ([0] [0][0] / 0x2000), 44100 Hz, stereo,
fltp, 192 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (wmv3 -> mpeg4)
Stream #0:1 -> #0:1 (wmav2 -> ac3)
Press [q] to stop, [?] for help
[wmv3 @ 0x1693cc0] warning: first frame is no keyframe
Read data packet header failed!
Recv other type packet -5
Read data packet header failed!
Recv other type packet -5
Read data packet header failed!
Recv other type packet -5
Read data packet header failed!
Recv other type packet -5
frame= 0 fps=0.0 q=0.0 Lsize= 10kB time=00:00:00.00 bitrate=N/A
dup=0 drop=2
video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead inf%
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)
[Thread 0x7ffff1d2d700 (LWP 23413) exited]
[Thread 0x7ffff4532700 (LWP 23408) exited]
[Thread 0x7ffff5d35700 (LWP 23405) exited]
[Thread 0x7ffff252e700 (LWP 23412) exited]
[Thread 0x7ffff3530700 (LWP 23410) exited]
[Thread 0x7ffff2d2f700 (LWP 23411) exited]
[Thread 0x7ffff3d31700 (LWP 23409) exited]
[Thread 0x7ffff5534700 (LWP 23406) exited]
[Thread 0x7ffff4d33700 (LWP 23407) exited]
Program received signal SIGSEGV, Segmentation fault.
0x0000000000bef51b in av_opt_free (obj=0x8000) at libavutil/opt.c:1195
1195 {
(gdb) bt
#0 0x0000000000bef51b in av_opt_free (obj=0x8000) at libavutil/opt.c:1195
#1 0x00000000004f4d31 in ffurl_closep (hh=0x7fffffffd998) at
libavformat/avio.c:352
#2 ffurl_close (h=0x8000) at libavformat/avio.c:361
#3 0x00000000005328d2 in mmsh_close (h=<optimized out>) at
libavformat/mmsh.c:69
#4 0x00000000004f4d5d in ffurl_closep (hh=0x7fffffffd9d8) at
libavformat/avio.c:345
#5 ffurl_close (h=0x167bdc0) at libavformat/avio.c:361
#6 0x00000000004f980a in avio_close (s=s at entry=0x169a900) at
libavformat/aviobuf.c:836
#7 0x00000000005be3fd in avformat_close_input (ps=0x1691400) at
libavformat/utils.c:3360
#8 0x000000000046522b in exit_program () at ffmpeg.c:483
#9 0x00007ffff679f8b1 in __run_exit_handlers () from /lib64/libc.so.6
#10 0x00007ffff679f935 in exit () from /lib64/libc.so.6
#11 0x0000000000459dbb in main (argc=<optimized out>, argv=<optimized
out>) at ffmpeg.c:3384
(gdb) disass $pc-11,$pc+32
Dump of assembler code from 0xbef510 to 0xbef53b:
0x0000000000bef510 <av_opt_free+0>: push %rbp
0x0000000000bef511 <av_opt_free+1>: mov %rdi,%rbp
0x0000000000bef514 <av_opt_free+4>: push %rbx
0x0000000000bef515 <av_opt_free+5>: xor %ebx,%ebx
0x0000000000bef517 <av_opt_free+7>: sub $0x8,%rsp
=> 0x0000000000bef51b <av_opt_free+11>: mov (%rdi),%rdx
0x0000000000bef51e <av_opt_free+14>: xchg %ax,%ax
0x0000000000bef520 <av_opt_free+16>: test %rbx,%rbx
0x0000000000bef523 <av_opt_free+19>: je 0xbef550 <av_opt_free+64>
0x0000000000bef525 <av_opt_free+21>: cmpq $0x0,0x40(%rbx)
0x0000000000bef52a <av_opt_free+26>: je 0xbef560 <av_opt_free+80>
0x0000000000bef52c <av_opt_free+28>: add $0x40,%rbx
0x0000000000bef530 <av_opt_free+32>: mov 0x14(%rbx),%eax
0x0000000000bef533 <av_opt_free+35>: and $0xfffffffd,%eax
0x0000000000bef536 <av_opt_free+38>: cmp $0x5,%eax
0x0000000000bef539 <av_opt_free+41>: jne 0xbef520 <av_opt_free+16>
End of assembler dump.
(gdb) info register
rax 0x5328c0 5449920
rbx 0x0 0
rcx 0x7fffffffd908 140737488345352
rdx 0x16933f0 23671792
rsi 0x1 1
rdi 0x8000 32768
rbp 0x8000 0x8000
rsp 0x7fffffffd970 0x7fffffffd970
r8 0xc1 193
r9 0x0 0
r10 0x0 0
r11 0x246 582
r12 0x169a900 23701760
r13 0x1691400 23663616
r14 0x167bd50 23575888
r15 0x0 0
rip 0xbef51b 0xbef51b <av_opt_free+11>
eflags 0x10202 [ IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2581>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list