[FFmpeg-trac] #1917(avcodec:new): Crash with -acodec libfdk_aac -f latm
FFmpeg
trac at avcodec.org
Wed Nov 14 02:06:25 CET 2012
#1917: Crash with -acodec libfdk_aac -f latm
-------------------------------------+-------------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: important | Component: avcodec
Version: git- | Keywords: libfdk-aac
master | crash SIGSEGV
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
-------------------------------------+-------------------------------------
FFmpeg crashes when trying to encode to format latm using libfdk-aac
{{{
(gdb) r -i fate-suite/svq3/Vertical400kbit.sorenson3.mov -latm 1 out.latm
Starting program: ffmpeg_g -i fate-
suite/svq3/Vertical400kbit.sorenson3.mov -latm 1 out.latm
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
ffmpeg version N-46646-g0e239b2 Copyright (c) 2000-2012 the FFmpeg
developers
built on Nov 14 2012 01:08:45 with gcc 4.7 (SUSE Linux)
configuration: --enable-libfdk-aac --disable-indev=jack
libavutil 52. 6.100 / 52. 6.100
libavcodec 54. 71.100 / 54. 71.100
libavformat 54. 36.100 / 54. 36.100
libavdevice 54. 3.100 / 54. 3.100
libavfilter 3. 22.101 / 3. 22.101
libswscale 2. 1.102 / 2. 1.102
libswresample 0. 16.100 / 0. 16.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x159d240] max_analyze_duration 5000000 reached
at 5000998
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'fate-
suite/svq3/Vertical400kbit.sorenson3.mov':
Metadata:
creation_time : 2001-03-20 16:17:18
title : Vertical Online SV3 Demo
title-eng : Vertical Online SV3 Demo
artist : Logan Kelsey
artist-eng : Logan Kelsey
copyright : © Vertical Online 2001
copyright-eng : © Vertical Online 2001
encoder : Sorenson Video 3
encoder-eng : Sorenson Video 3
Duration: 00:00:43.58, start: 0.000000, bitrate: 580 kb/s
Stream #0:0(eng): Video: svq3 (SVQ3 / 0x33515653), yuvj420p, 320x240,
391 kb/s, 30.02 fps, 30 tbr, 600 tbn, 600 tbc
Metadata:
creation_time : 2001-03-20 16:17:18
handler_name : Apple Alias Data Handler
Stream #0:1(eng): Audio: adpcm_ima_qt (ima4 / 0x34616D69), 44100 Hz,
mono, s16p, 176 kb/s
Metadata:
creation_time : 2001-03-20 16:17:18
handler_name : Apple Alias Data Handler
Output #0, latm, to 'out.latm':
Metadata:
encoder-eng : Sorenson Video 3
title : Vertical Online SV3 Demo
title-eng : Vertical Online SV3 Demo
artist : Logan Kelsey
artist-eng : Logan Kelsey
copyright : © Vertical Online 2001
copyright-eng : © Vertical Online 2001
encoder : Lavf54.36.100
Stream #0:0(eng): Audio: aac, 44100 Hz, mono, s16, 96 kb/s
Metadata:
creation_time : 2001-03-20 16:17:18
handler_name : Apple Alias Data Handler
Stream mapping:
Stream #0:1 -> #0:0 (adpcm_ima_qt -> libfdk_aac)
Press [q] to stop, [?] for help
Multiple frames in a packet from stream 1
Program received signal SIGSEGV, Segmentation fault.
0x00000000005996d1 in avpriv_copy_bits (pb=pb at entry=0x7fffffffbf80,
src=0x0,
length=<optimized out>) at libavcodec/bitstream.c:79
79 put_bits(pb, bits, AV_RB16(src + 2*words)>>(16-bits));
(gdb) bt
#0 0x00000000005996d1 in avpriv_copy_bits (pb=pb at entry=0x7fffffffbf80,
src=0x0,
length=<optimized out>) at libavcodec/bitstream.c:79
#1 0x00000000004cb86d in latm_write_frame_header (bs=0x7fffffffbf80,
s=<optimized out>)
at libavformat/latmenc.c:123
#2 latm_write_packet (s=0x15a5000, pkt=0x7fffffffbff0) at
libavformat/latmenc.c:164
#3 0x0000000000502358 in av_interleaved_write_frame (s=s at entry=0x15a5000,
pkt=pkt at entry=0x7fffffffc310) at libavformat/mux.c:736
#4 0x000000000045be25 in write_frame (s=0x15a5000, pkt=0x7fffffffc310,
ost=0x159de20)
at ffmpeg.c:573
#5 0x000000000045d365 in do_audio_out (frame=<optimized out>,
ost=<optimized out>,
s=<optimized out>) at ffmpeg.c:647
#6 reap_filters () at ffmpeg.c:1038
#7 0x000000000044f809 in transcode_step () at ffmpeg.c:2933
#8 transcode () at ffmpeg.c:2976
#9 main (argc=<optimized out>, argv=<optimized out>) at ffmpeg.c:3160
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0x5996b1 to 0x5996f1:
0x00000000005996b1 <avpriv_copy_bits+145>: sub $0x10,%eax
0x00000000005996b4 <avpriv_copy_bits+148>: or %r9d,%r8d
0x00000000005996b7 <avpriv_copy_bits+151>: cmp %edi,%edx
0x00000000005996b9 <avpriv_copy_bits+153>: mov %eax,0x4(%rbx)
0x00000000005996bc <avpriv_copy_bits+156>: mov %r8d,(%rbx)
0x00000000005996bf <avpriv_copy_bits+159>: jg 0x599695
<avpriv_copy_bits+117>
0x00000000005996c1 <avpriv_copy_bits+161>: lea (%rdx,%rdx,1),%r13d
0x00000000005996c5 <avpriv_copy_bits+165>: movslq %r13d,%r13
0x00000000005996c8 <avpriv_copy_bits+168>: and $0xf,%r12d
0x00000000005996cc <avpriv_copy_bits+172>: mov $0x10,%ecx
=> 0x00000000005996d1 <avpriv_copy_bits+177>: movzwl
0x0(%rbp,%r13,1),%edx
0x00000000005996d7 <avpriv_copy_bits+183>: sub %r12d,%ecx
0x00000000005996da <avpriv_copy_bits+186>: rol $0x8,%dx
0x00000000005996de <avpriv_copy_bits+190>: movzwl %dx,%edx
0x00000000005996e1 <avpriv_copy_bits+193>: sar %cl,%edx
0x00000000005996e3 <avpriv_copy_bits+195>: cmp %eax,%r12d
0x00000000005996e6 <avpriv_copy_bits+198>: jl 0x5997d0
<avpriv_copy_bits+432>
0x00000000005996ec <avpriv_copy_bits+204>: mov %eax,%ecx
0x00000000005996ee <avpriv_copy_bits+206>: mov %edx,%esi
0x00000000005996f0 <avpriv_copy_bits+208>: shl %cl,%r8d
End of assembler dump.
(gdb) info register
rax 0x10 16
rbx 0x7fffffffbf80 140737488338816
rcx 0x10 16
rdx 0x0 0
rsi 0x0 0
rdi 0x7fffffffbf80 140737488338816
rbp 0x0 0x0
rsp 0x7fffffffbf10 0x7fffffffbf10
r8 0x2000 8192
r9 0x0 0
r10 0x117 279
r11 0x7ffff67ed0de 140737328894174
r12 0x3 3
r13 0x0 0
r14 0x7fffffffbff0 140737488338928
r15 0x159ee40 22670912
rip 0x5996d1 0x5996d1 <avpriv_copy_bits+177>
eflags 0x10206 [ PF 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/1917>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list