#588: FFmpeg crashes when transcoding a wmv video on windows 7 (64 bit) machine
-------------------------------------+-----------------------------------
Reporter: eiljoe | Owner: michael
Type: defect | Status: open
Priority: important | Component: avcodec
Version: unspecified | Resolution:
Keywords: win64 | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
-------------------------------------+-----------------------------------
Changes (by cehoyos):
* keywords: => win64
* priority: critical => important
* status: new => open
* component: FFmpeg => avcodec
* reproduced: 0 => 1
Comment:
{{{
(gdb) r -i ffmpeg-crash-around-frame-60.wmv -vn -f null -
ffmpeg version N-34060-g51bfaa2, Copyright (c) 2000-2011 the FFmpeg
developers
built on Oct 26 2011 04:00:05 with gcc 4.7.0 20110827 (experimental)
configuration:
libavutil 51. 22. 0 / 51. 22. 0
libavcodec 53. 23. 0 / 53. 23. 0
libavformat 53. 17. 0 / 53. 17. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 45. 0 / 2. 45. 0
libswscale 2. 1. 0 / 2. 1. 0
[wmav2 @ 00000000003AC980] Warning: not compiled with thread support,
using thread emulation
[wmv2 @ 0000000005E26260] Warning: not compiled with thread support, using
thread emulation
[asf @ 00000000003ABA90] parser not found for codec wmav2, packets or
times may be invalid.
Seems stream 1 codec frame rate differs from container frame rate: 1000.00
(1000/1) -> 25.00 (25/1)
Input #0, asf, from 'ffmpeg-crash-around-frame-60.wmv':
Metadata:
WMFSDKVersion : 11.0.5721.5245
WMFSDKNeeded : 0.0.0.0000
IsVBR : 1
VBR Peak : 8464 ¡║X½½½½½½½½½½½½½½½½■¯■¯■¯■
Buffer Average : 8514 ¡║X½½½½½½½½½½½½½½½½■¯■¯■¯■
Encoded_By : Sorenson Squeeze
Encoded_With : Sorenson Squeeze
Duration: 00:01:20.02, start: 0.000000, bitrate: 153 kb/s
Stream #0:0: Audio: wmav2 (a[1][0][0] / 0x0161), 48000 Hz, 2 channels,
s16, 128 kb/s
Stream #0:1: Video: wmv2 (WMV2 / 0x32564D57), yuv420p, 1280x720, 18000
kb/s, 25 tbr, 1k tbn, 1k tbc
[pcm_s16le @ 0000000005E275B0] Warning: not compiled with thread support,
using thread emulation
[wmav2 @ 00000000003AC980] Warning: not compiled with thread support,
using thread emulation
Output #0, null, to 'pipe:':
Metadata:
WMFSDKVersion : 11.0.5721.5245
WMFSDKNeeded : 0.0.0.0000
IsVBR : 1
VBR Peak : 8464 ¡║X½½½½½½½½½½½½½½½½■¯■¯■¯■
Buffer Average : 8514 ¡║X½½½½½½½½½½½½½½½½■¯■¯■¯■
Encoded_By : Sorenson Squeeze
Encoded_With : Sorenson Squeeze
encoder : Lavf53.17.0
Stream #0:0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Stream mapping:
Stream #0.0 -> #0.0 (wmav2 -> pcm_s16le)
Press [q] to stop, [?] for help
Program received signal SIGSEGV, Segmentation fault.
0x00000000009d5712 in ff_imdct_half_sse.pre ()
(gdb) bt
#0 0x00000000009d5712 in ff_imdct_half_sse.pre ()
#1 0x0000000000000029 in ?? ()
#2 0x0000000000000000 in ?? ()
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0x9d56f2 to 0x9d5732:
0x00000000009d56f2 <ff_imdct_half_sse+34>: pop %rcx
0x00000000009d56f3 <ff_imdct_half_sse+35>: and
%cl,0x61(%rbx,%rcx,4)
0x00000000009d56f7 <ff_imdct_half_sse+39>: sub %cl,0x1(%rbp)
0x00000000009d56fa <ff_imdct_half_sse+42>: lret
0x00000000009d56fb <ff_imdct_half_sse+43>: add %r9,%r12
0x00000000009d56fe <ff_imdct_half_sse+46>: shr %r9
0x00000000009d5701 <ff_imdct_half_sse+49>: mov 0x8(%rcx),%r10
0x00000000009d5705 <ff_imdct_half_sse+53>: add %r9,%r10
0x00000000009d5708 <ff_imdct_half_sse+56>: sub $0x4,%r9
0x00000000009d570c <ff_imdct_half_sse+60>: xor %rdi,%rdi
0x00000000009d570f <ff_imdct_half_sse+63>: sub %r9,%rdi
=> 0x00000000009d5712 <ff_imdct_half_sse.pre+0>: movaps
(%r8,%r9,4),%xmm0
0x00000000009d5717 <ff_imdct_half_sse.pre+5>: movaps
-0x10(%r8,%rdi,4),%xmm1
0x00000000009d571d <ff_imdct_half_sse.pre+11>: movaps %xmm0,%xmm2
0x00000000009d5720 <ff_imdct_half_sse.pre+14>: shufps
$0x88,%xmm1,%xmm0
0x00000000009d5724 <ff_imdct_half_sse.pre+18>: shufps
$0x77,%xmm2,%xmm1
0x00000000009d5728 <ff_imdct_half_sse.pre+22>: movlps
(%r11,%r9,2),%xmm4
0x00000000009d572d <ff_imdct_half_sse.pre+27>: movlps
(%r12,%r9,2),%xmm5
End of assembler dump.
(gdb) info all-registers
rax 0x5ee42b0 99500720
rbx 0x5ee12ac 99488428
rcx 0x5ee42b0 99500720
rdx 0x5ee12ac 99488428
rsi 0x400 1024
rdi 0xfffffffffffffc04 -1020
rbp 0x5ee02ac 0x5ee02ac
rsp 0x22dd30 0x22dd30
r8 0x5edd2ac 99472044
r9 0x3fc 1020
r10 0x5efd580 99603840
r11 0x5e5f540 98956608
r12 0x5e60540 98960704
r13 0x0 0
r14 0x29 41
r15 0x5ed3dd0 99433936
rip 0x9d5712 0x9d5712 <ff_imdct_half_sse.pre>
eflags 0x10293 [ CF AF SF IF RF ]
cs 0x33 51
ss 0x293002b 43188267
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x2b0000 2818048
st0 0 (raw 0x00000000000000000000)
st1 0 (raw 0x00000000000000000000)
st2 0 (raw 0x00000000000000000000)
st3 0 (raw 0x00000000000000000000)
st4 9 (raw 0x40029000000000000000)
st5 1 (raw 0x3fff8000000000000000)
st6 1584.893192461114 (raw 0x4009c61c95085b309b42)
st7 3.2000000000000002 (raw 0x4000ccccccccccccd000)
fctrl 0x420037f 69206911
fstat 0x420 1056
ftag 0x5d80000 98041856
fiseg 0x33 51
fioff 0xa55c40 10837056
foseg 0x2b 43
fooff 0x0 0
fop 0x0 0
xmm0 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0},
v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,
0x0,
0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0,
0x0},
uint128 = 0x00000000000000000000000000000000}
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/588#comment:1>
FFmpeg <http://ffmpeg.org>
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