Ticket #2140 (closed defect: fixed)
null ptr deref due to vf_mp not setting pseudo palette
| Reported by: | cehoyos | Owned by: | |
|---|---|---|---|
| Priority: | important | Component: | avfilter |
| Version: | git-master | Keywords: | crash SIGSEGV mpfilter |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | yes |
Description
$ ffmpeg -i tests/lena.pnm -vf mp=il=d -pix_fmt gray gray.png
(gdb) r -i gray.png -vf mp=il=i gray2.png
Starting program: ffmpeg_g -i gray.png -vf mp=il=i gray2.png
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
ffmpeg version N-48916-ge074fe2 Copyright (c) 2000-2013 the FFmpeg developers
built on Jan 15 2013 15:59:20 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 14.100 / 52. 14.100
libavcodec 54. 89.100 / 54. 89.100
libavformat 54. 59.107 / 54. 59.107
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 32.100 / 3. 32.100
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, image2, from 'gray.png':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, gray, 256x256, 25 tbr, 25 tbn, 25 tbc
[Parsed_mp_0 @ 0x15d2a20] 'il' is a wrapped MPlayer filter (libmpcodecs). This filter may be removed
once it has been ported to a native libavfilter.
[New Thread 0x7ffff6563700 (LWP 11883)]
[New Thread 0x7ffff5d62700 (LWP 11884)]
[New Thread 0x7ffff5561700 (LWP 11885)]
[New Thread 0x7ffff4d60700 (LWP 11886)]
[New Thread 0x7fffe7fff700 (LWP 11887)]
[New Thread 0x7fffe77fe700 (LWP 11888)]
[New Thread 0x7fffe6ffd700 (LWP 11889)]
[New Thread 0x7fffe67fc700 (LWP 11890)]
Output #0, image2, to 'gray2.png':
Metadata:
encoder : Lavf54.59.107
Stream #0:0: Video: png, gray, 256x256, q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png -> png)
Press [q] to stop, [?] for help
Program received signal SIGSEGV, Segmentation fault.
0x0000000000bb9ae0 in av_image_copy (dst_data=dst_data@entry=0x15b9108,
dst_linesizes=dst_linesizes@entry=0x15b9150, src_data=src_data@entry=0x15c6b88,
src_linesizes=src_linesizes@entry=0x15c6bd0, pix_fmt=AV_PIX_FMT_GRAY8, width=256,
height=256) at libavutil/imgutils.c:272
272 memcpy(dst_data[1], src_data[1], 4*256);
(gdb) bt
#0 0x0000000000bb9ae0 in av_image_copy (dst_data=dst_data@entry=0x15b9108,
dst_linesizes=dst_linesizes@entry=0x15b9150, src_data=src_data@entry=0x15c6b88,
src_linesizes=src_linesizes@entry=0x15c6bd0, pix_fmt=AV_PIX_FMT_GRAY8, width=256,
height=256) at libavutil/imgutils.c:272
#1 0x0000000000470667 in ff_filter_frame_framed (link=link@entry=0x15d42c0,
frame=frame@entry=0x15c6b80) at libavfilter/avfilter.c:693
#2 0x0000000000470a71 in ff_filter_frame (frame=0x15c6b80, link=0x15d42c0)
at libavfilter/avfilter.c:791
#3 default_filter_frame (link=<optimized out>, frame=0x15c6b80)
at libavfilter/avfilter.c:638
#4 0x00000000004707d6 in ff_filter_frame_framed (link=link@entry=0x15d4020,
frame=frame@entry=0x15c6b80) at libavfilter/avfilter.c:719
#5 0x000000000047242b in ff_filter_frame (link=link@entry=0x15d4020,
frame=frame@entry=0x15c6b80) at libavfilter/avfilter.c:791
#6 0x000000000048af2c in ff_vf_next_put_image (vf=0x15d2ac0, mpi=0x15d43a0, pts=0)
at libavfilter/vf_mp.c:588
#7 0x000000000048abd2 in filter_frame (inlink=0x15d41e0, inpic=0x15d4700)
at libavfilter/vf_mp.c:824
#8 0x00000000004707d6 in ff_filter_frame_framed (link=link@entry=0x15d41e0,
frame=frame@entry=0x15d4700) at libavfilter/avfilter.c:719
#9 0x000000000047242b in ff_filter_frame (link=link@entry=0x15d41e0, frame=0x15d4700)
at libavfilter/avfilter.c:791
#10 0x0000000000475182 in request_frame (link=0x15d41e0) at libavfilter/buffersrc.c:372
#11 0x00000000004755b4 in av_buffersrc_add_ref (s=0x15c6e00, buf=0x0, flags=flags@entry=7)
at libavfilter/buffersrc.c:150
#12 0x000000000045e5ed in decode_video (ist=ist@entry=0x15ddb40,
pkt=pkt@entry=0x7fffffffdb00, got_output=got_output@entry=0x7fffffffd89c)
at ffmpeg.c:1672
#13 0x00000000004615ff in output_packet (pkt=0x7fffffffdaa0, ist=0x15ddb40)
at ffmpeg.c:1792
#14 process_input (file_index=<optimized out>) at ffmpeg.c:2886
#15 0x0000000000451cb0 in transcode_step () at ffmpeg.c:2982
#16 transcode () at ffmpeg.c:3034
#17 main (argc=<optimized out>, argv=<optimized out>) at ffmpeg.c:3209
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0xbb9ac0 to 0xbb9b00:
0x0000000000bb9ac0 <av_image_copy+848>: add %al,(%rax)
0x0000000000bb9ac2 <av_image_copy+850>: add %al,-0xa(%rax)
0x0000000000bb9ac5 <av_image_copy+853>: movl $0x10d850f,(%rdx)
0x0000000000bb9acb <av_image_copy+859>: add %al,(%rax)
0x0000000000bb9acd <av_image_copy+861>: test $0x4,%dil
0x0000000000bb9ad1 <av_image_copy+865>: jne 0xbb9bc6 <av_image_copy+1110>
0x0000000000bb9ad7 <av_image_copy+871>: mov %eax,%ecx
0x0000000000bb9ad9 <av_image_copy+873>: xor %edx,%edx
0x0000000000bb9adb <av_image_copy+875>: shr $0x3,%ecx
0x0000000000bb9ade <av_image_copy+878>: test $0x4,%al
=> 0x0000000000bb9ae0 <av_image_copy+880>: rep movsq %ds:(%rsi),%es:(%rdi)
0x0000000000bb9ae3 <av_image_copy+883>: je 0xbb9aee <av_image_copy+894>
0x0000000000bb9ae5 <av_image_copy+885>: mov (%rsi),%edx
0x0000000000bb9ae7 <av_image_copy+887>: mov %edx,(%rdi)
0x0000000000bb9ae9 <av_image_copy+889>: mov $0x4,%edx
0x0000000000bb9aee <av_image_copy+894>: test $0x2,%al
0x0000000000bb9af0 <av_image_copy+896>: je 0xbb9afe <av_image_copy+910>
0x0000000000bb9af2 <av_image_copy+898>: movzwl (%rsi,%rdx,1),%ecx
0x0000000000bb9af6 <av_image_copy+902>: mov %cx,(%rdi,%rdx,1)
0x0000000000bb9afa <av_image_copy+906>: add $0x2,%rdx
0x0000000000bb9afe <av_image_copy+910>: test $0x1,%al
(gdb) info register
rax 0x400 1024
rbx 0x100 256
rcx 0x80 128
rdx 0x0 0
rsi 0x0 0
rdi 0x162daa0 23255712
rbp 0x100 0x100
rsp 0x7fffffffd1f0 0x7fffffffd1f0
r8 0x162d9a0 23255456
r9 0xf0 240
r10 0x0 0
r11 0x7ffff68d1d60 140737329831264
r12 0x161d840 23189568
r13 0x162daa0 23255712
r14 0x0 0
r15 0x100 256
rip 0xbb9ae0 0xbb9ae0 <av_image_copy+880>
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
Change History
comment:2 Changed 4 months ago by cehoyos
- Status changed from closed to reopened
- Resolution fixed deleted
(gdb) r -i gray.png -vf mp=il=i gray2.png
Starting program: ffmpeg_g -i gray.png -vf mp=il=i gray2.png
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
ffmpeg version N-49616-gf0eacbc Copyright (c) 2000-2013 the FFmpeg developers
built on Feb 5 2013 23:36:50 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 17.101 / 52. 17.101
libavcodec 54. 91.100 / 54. 91.100
libavformat 54. 61.104 / 54. 61.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 35.101 / 3. 35.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, image2, from 'gray.png':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, gray, 256x256, 25 tbr, 25 tbn, 25 tbc
[Parsed_mp_0 @ 0x160f5c0] 'il' is a wrapped MPlayer filter (libmpcodecs). This filter may be removed
once it has been ported to a native libavfilter.
[New Thread 0x7ffff6563700 (LWP 23337)]
[New Thread 0x7ffff5d62700 (LWP 23338)]
[New Thread 0x7ffff5561700 (LWP 23339)]
[New Thread 0x7ffff4d60700 (LWP 23340)]
[New Thread 0x7fffe7fff700 (LWP 23341)]
[New Thread 0x7fffe77fe700 (LWP 23342)]
[New Thread 0x7fffe6ffd700 (LWP 23343)]
[New Thread 0x7fffe67fc700 (LWP 23344)]
Output #0, image2, to 'gray2.png':
Metadata:
encoder : Lavf54.61.104
Stream #0:0: Video: png, gray, 256x256, q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png -> png)
Press [q] to stop, [?] for help
Program received signal SIGSEGV, Segmentation fault.
0x0000000000bbdb60 in av_image_copy (dst_data=dst_data@entry=0x15e4288,
dst_linesizes=dst_linesizes@entry=0x15e42d0, src_data=src_data@entry=0x15e32c8,
src_linesizes=src_linesizes@entry=0x15e3310, pix_fmt=AV_PIX_FMT_GRAY8, width=256,
height=256) at libavutil/imgutils.c:272
272 memcpy(dst_data[1], src_data[1], 4*256);
(gdb) bt
#0 0x0000000000bbdb60 in av_image_copy (dst_data=dst_data@entry=0x15e4288,
dst_linesizes=dst_linesizes@entry=0x15e42d0, src_data=src_data@entry=0x15e32c8,
src_linesizes=src_linesizes@entry=0x15e3310, pix_fmt=AV_PIX_FMT_GRAY8, width=256,
height=256) at libavutil/imgutils.c:272
#1 0x000000000046e497 in ff_filter_frame_framed (link=link@entry=0x15fc960,
frame=frame@entry=0x15e32c0) at libavfilter/avfilter.c:693
#2 0x000000000046e8a1 in ff_filter_frame (frame=0x15e32c0, link=0x15fc960)
at libavfilter/avfilter.c:791
#3 default_filter_frame (link=<optimized out>, frame=0x15e32c0) at libavfilter/avfilter.c:638
#4 0x000000000046e606 in ff_filter_frame_framed (link=link@entry=0x15fc2a0,
frame=frame@entry=0x15e32c0) at libavfilter/avfilter.c:719
#5 0x000000000047025b in ff_filter_frame (link=link@entry=0x15fc2a0,
frame=frame@entry=0x15e32c0) at libavfilter/avfilter.c:791
#6 0x000000000048923c in ff_vf_next_put_image (vf=0x160f660, mpi=0x15e3110, pts=0)
at libavfilter/vf_mp.c:588
#7 0x0000000000488ee2 in filter_frame (inlink=0x15fc880, inpic=0x15ff800)
at libavfilter/vf_mp.c:824
#8 0x000000000046e606 in ff_filter_frame_framed (link=link@entry=0x15fc880,
frame=frame@entry=0x15ff800) at libavfilter/avfilter.c:719
#9 0x000000000047025b in ff_filter_frame (link=link@entry=0x15fc880, frame=0x15ff800)
at libavfilter/avfilter.c:791
#10 0x0000000000473242 in request_frame (link=0x15fc880) at libavfilter/buffersrc.c:396
#11 0x0000000000473694 in av_buffersrc_add_ref (s=0x160f4c0, buf=0x0, flags=flags@entry=7)
at libavfilter/buffersrc.c:151
#12 0x000000000045b76d in decode_video (ist=ist@entry=0x1606ce0,
pkt=pkt@entry=0x7fffffffdb00, got_output=got_output@entry=0x7fffffffd89c) at ffmpeg.c:1715
#13 0x000000000045e8bf in output_packet (pkt=0x7fffffffdaa0, ist=0x1606ce0) at ffmpeg.c:1835
#14 process_input (file_index=<optimized out>) at ffmpeg.c:2988
#15 0x000000000044ecc0 in transcode_step () at ffmpeg.c:3084
#16 transcode () at ffmpeg.c:3136
#17 main (argc=<optimized out>, argv=<optimized out>) at ffmpeg.c:3311
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0xbbdb40 to 0xbbdb80:
0x0000000000bbdb40 <av_image_copy+848>: add %al,(%rax)
0x0000000000bbdb42 <av_image_copy+850>: add %al,-0xa(%rax)
0x0000000000bbdb45 <av_image_copy+853>: movl $0x10d850f,(%rdx)
0x0000000000bbdb4b <av_image_copy+859>: add %al,(%rax)
0x0000000000bbdb4d <av_image_copy+861>: test $0x4,%dil
0x0000000000bbdb51 <av_image_copy+865>: jne 0xbbdc46 <av_image_copy+1110>
0x0000000000bbdb57 <av_image_copy+871>: mov %eax,%ecx
0x0000000000bbdb59 <av_image_copy+873>: xor %edx,%edx
0x0000000000bbdb5b <av_image_copy+875>: shr $0x3,%ecx
0x0000000000bbdb5e <av_image_copy+878>: test $0x4,%al
=> 0x0000000000bbdb60 <av_image_copy+880>: rep movsq %ds:(%rsi),%es:(%rdi)
0x0000000000bbdb63 <av_image_copy+883>: je 0xbbdb6e <av_image_copy+894>
0x0000000000bbdb65 <av_image_copy+885>: mov (%rsi),%edx
0x0000000000bbdb67 <av_image_copy+887>: mov %edx,(%rdi)
0x0000000000bbdb69 <av_image_copy+889>: mov $0x4,%edx
0x0000000000bbdb6e <av_image_copy+894>: test $0x2,%al
0x0000000000bbdb70 <av_image_copy+896>: je 0xbbdb7e <av_image_copy+910>
0x0000000000bbdb72 <av_image_copy+898>: movzwl (%rsi,%rdx,1),%ecx
0x0000000000bbdb76 <av_image_copy+902>: mov %cx,(%rdi,%rdx,1)
0x0000000000bbdb7a <av_image_copy+906>: add $0x2,%rdx
0x0000000000bbdb7e <av_image_copy+910>: test $0x1,%al
End of assembler dump.
(gdb) info register
rax 0x400 1024
rbx 0x100 256
rcx 0x80 128
rdx 0x0 0
rsi 0x0 0
rdi 0x1656c40 23424064
rbp 0x100 0x100
rsp 0x7fffffffd1f0 0x7fffffffd1f0
r8 0x1656c30 23424048
r9 0x0 0
r10 0x0 0
r11 0x7ffff68d1b20 140737329830688
r12 0x16469e0 23357920
r13 0x1656c40 23424064
r14 0x0 0
r15 0x100 256
rip 0xbbdb60 0xbbdb60 <av_image_copy+880>
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
comment:3 Changed 4 months ago by michael
- Analyzed by developer set
- Summary changed from Crash using mp=il=i on gray input to null ptr deref due to vf_mp not setting pseudo palette
comment:4 Changed 4 months ago by cehoyos
The mp=il filter was ported and removed by Paul B Mahol, the crash is still reproducible with mp=fspp.
$ ffmpeg -i tests/lena.pnm -pix_fmt gray gray.png
(gdb) r -i gray.png -vf mp=fspp -f null -
Starting program: ffmpeg_g -i gray.png -vf mp=fspp -f null -
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
ffmpeg version 1.1 Copyright (c) 2000-2013 the FFmpeg developers
built on Feb 10 2013 11:46:21 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 52. 13.100 / 52. 13.100
libavcodec 54. 86.100 / 54. 86.100
libavformat 54. 59.106 / 54. 59.106
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 32.100 / 3. 32.100
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, image2, from 'gray.png':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, gray, 256x256, 25 tbr, 25 tbn, 25 tbc
[Parsed_mp_0 @ 0x15de480] 'fspp' is a wrapped MPlayer filter (libmpcodecs). This filter may be removed
once it has been ported to a native libavfilter.
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf54.59.106
Stream #0:0: Video: rawvideo (Y800 / 0x30303859), gray, 256x256, q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png -> rawvideo)
Press [q] to stop, [?] for help
Program received signal SIGSEGV, Segmentation fault.
0x0000000000bb8d60 in av_image_copy (dst_data=dst_data@entry=0x15dffc8,
dst_linesizes=dst_linesizes@entry=0x15e0010,
src_data=src_data@entry=0x15df708,
src_linesizes=src_linesizes@entry=0x15df750, pix_fmt=AV_PIX_FMT_GRAY8,
width=256, height=256) at libavutil/imgutils.c:272
272 memcpy(dst_data[1], src_data[1], 4*256);
(gdb) bt
#0 0x0000000000bb8d60 in av_image_copy (dst_data=dst_data@entry=0x15dffc8,
dst_linesizes=dst_linesizes@entry=0x15e0010,
src_data=src_data@entry=0x15df708,
src_linesizes=src_linesizes@entry=0x15df750, pix_fmt=AV_PIX_FMT_GRAY8,
width=256, height=256) at libavutil/imgutils.c:272
#1 0x00000000004713e6 in ff_filter_frame_framed (link=link@entry=0x15ded20,
frame=frame@entry=0x15df700) at libavfilter/avfilter.c:693
#2 0x00000000004731ab in ff_filter_frame (link=link@entry=0x15ded20,
frame=frame@entry=0x15df700) at libavfilter/avfilter.c:791
#3 0x000000000048bcac in ff_vf_next_put_image (vf=0x15de5a0, mpi=0x15df880, pts=0)
at libavfilter/vf_mp.c:588
#4 0x000000000048b952 in filter_frame (inlink=0x15dfcc0, inpic=0x15dfac0)
at libavfilter/vf_mp.c:824
#5 0x0000000000471555 in ff_filter_frame_framed (link=link@entry=0x15dfcc0,
frame=frame@entry=0x15dfac0) at libavfilter/avfilter.c:719
#6 0x00000000004731ab in ff_filter_frame (link=link@entry=0x15dfcc0,
frame=0x15dfac0) at libavfilter/avfilter.c:791
#7 0x0000000000475f02 in request_frame (link=0x15dfcc0)
at libavfilter/buffersrc.c:372
#8 0x0000000000476334 in av_buffersrc_add_ref (s=0x15b9480, buf=0x0,
flags=flags@entry=7) at libavfilter/buffersrc.c:150
#9 0x000000000045eafd in decode_video (ist=ist@entry=0x15d7540,
pkt=pkt@entry=0x7fffffffdaf0, got_output=got_output@entry=0x7fffffffd88c)
at ffmpeg.c:1672
#10 0x0000000000461b0f in output_packet (pkt=0x7fffffffda90, ist=0x15d7540)
at ffmpeg.c:1792
#11 process_input (file_index=<optimized out>) at ffmpeg.c:2886
#12 0x00000000004521e0 in transcode_step () at ffmpeg.c:2982
#13 transcode () at ffmpeg.c:3034
#14 main (argc=<optimized out>, argv=<optimized out>) at ffmpeg.c:3209
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0xbb8d40 to 0xbb8d80:
0x0000000000bb8d40 <av_image_copy+848>: add %al,(%rax)
0x0000000000bb8d42 <av_image_copy+850>: add %al,-0xa(%rax)
0x0000000000bb8d45 <av_image_copy+853>: movl $0x10d850f,(%rdx)
0x0000000000bb8d4b <av_image_copy+859>: add %al,(%rax)
0x0000000000bb8d4d <av_image_copy+861>: test $0x4,%dil
0x0000000000bb8d51 <av_image_copy+865>: jne 0xbb8e46 <av_image_copy+1110>
0x0000000000bb8d57 <av_image_copy+871>: mov %eax,%ecx
0x0000000000bb8d59 <av_image_copy+873>: xor %edx,%edx
0x0000000000bb8d5b <av_image_copy+875>: shr $0x3,%ecx
0x0000000000bb8d5e <av_image_copy+878>: test $0x4,%al
=> 0x0000000000bb8d60 <av_image_copy+880>: rep movsq %ds:(%rsi),%es:(%rdi)
0x0000000000bb8d63 <av_image_copy+883>: je 0xbb8d6e <av_image_copy+894>
0x0000000000bb8d65 <av_image_copy+885>: mov (%rsi),%edx
0x0000000000bb8d67 <av_image_copy+887>: mov %edx,(%rdi)
0x0000000000bb8d69 <av_image_copy+889>: mov $0x4,%edx
0x0000000000bb8d6e <av_image_copy+894>: test $0x2,%al
0x0000000000bb8d70 <av_image_copy+896>: je 0xbb8d7e <av_image_copy+910>
0x0000000000bb8d72 <av_image_copy+898>: movzwl (%rsi,%rdx,1),%ecx
0x0000000000bb8d76 <av_image_copy+902>: mov %cx,(%rdi,%rdx,1)
0x0000000000bb8d7a <av_image_copy+906>: add $0x2,%rdx
0x0000000000bb8d7e <av_image_copy+910>: test $0x1,%al
End of assembler dump.
(gdb) info register
rax 0x400 1024
rbx 0x100 256
rcx 0x80 128
rdx 0x0 0
rsi 0x0 0
rdi 0x1627080 23228544
rbp 0x100 0x100
rsp 0x7fffffffd2e0 0x7fffffffd2e0
r8 0x1626f80 23228288
r9 0xf0 240
r10 0x0 0
r11 0x7ffff668dd60 140737327455584
r12 0x1616e20 23162400
r13 0x1627080 23228544
r14 0x0 0
r15 0x100 256
rip 0xbb8d60 0xbb8d60 <av_image_copy+880>
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
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was fixed by syncing libmpcodec from mplayer i think
feel free to backport to releases