Carl Eugen Hoyos <[email protected]> added the comment:
250MB sample uploaded to samples/3D, please delete if you think it is too big
and not useful.
(gdb) r -i tests/data/vsynth1/mpeg4-thread.avi -vcodec copy -vbsf
h264_mp4toannexb -f h264 -y /dev/null
Starting program: ffmpeg_g -i tests/data/vsynth1/mpeg4-thread.avi -vcodec copy
-vbsf h264_mp4toannexb -f h264 -y /dev/null
[Thread debugging using libthread_db enabled]
FFmpeg version SVN-r25831, Copyright (c) 2000-2010 the FFmpeg developers
built on Nov 26 2010 11:20:47 with gcc 4.4.5
configuration: --cc=/usr/local/gcc-4.4.5/bin/gcc
libavutil 50.33. 0 / 50.33. 0
libavcore 0.14. 0 / 0.14. 0
libavcodec 52.97. 2 / 52.97. 2
libavformat 52.87. 0 / 52.87. 0
libavdevice 52. 2. 2 / 52. 2. 2
libavfilter 1.65. 0 / 1.65. 0
libswscale 0.12. 0 / 0.12. 0
Input #0, avi, from 'tests/data/vsynth1/mpeg4-thread.avi':
Duration: 00:00:02.00, start: 0.000000, bitrate: 3099 kb/s
Stream #0.0: Video: mpeg4, yuv420p, 352x288 [PAR 1:1 DAR 11:9], 25 tbr, 25
tbn, 25 tbc
Output #0, h264, to '/dev/null':
Metadata:
encoder : Lavf52.87.0
Stream #0.0: Video: mpeg4, yuv420p, 352x288 [PAR 1:1 DAR 11:9], q=2-31, 90k
tbn, 25 tbc
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop encoding
Program received signal SIGSEGV, Segmentation fault.
h264_mp4toannexb_filter (bsfc=<value optimized out>, avctx=<value optimized
out>, args=<value optimized out>, poutbuf=0x7fffffffc890,
poutbuf_size=0x7fffffffc898, buf=0x11ed4c0 "", buf_size=<value optimized out>,
keyframe=1)
at libavcodec/h264_mp4toannexb_bsf.c:117
117 memset(out + total_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
(gdb) bt
#0 h264_mp4toannexb_filter (bsfc=<value optimized out>, avctx=<value optimized
out>, args=<value optimized out>, poutbuf=0x7fffffffc890,
poutbuf_size=0x7fffffffc898, buf=0x11ed4c0 "", buf_size=<value optimized out>,
keyframe=1)
at libavcodec/h264_mp4toannexb_bsf.c:117
#1 0x0000000000406d69 in write_frame (s=<value optimized out>,
pkt=0x7fffffffcc30, avctx=0x11e9670, bsfc=0x11d9860) at ffmpeg.c:741
#2 0x0000000000409db8 in output_packet (ist=0x11dad30, ist_index=<value
optimized out>, ost_table=<value optimized out>, nb_ostreams=<value optimized
out>, pkt=<value optimized out>) at ffmpeg.c:1715
#3 0x000000000040c500 in transcode (nb_output_files=<value optimized out>,
nb_input_files=<value optimized out>, stream_maps=<value optimized out>,
nb_stream_maps=<value optimized out>, input_files=<value optimized out>,
output_files=<value optimized out>) at ffmpeg.c:2628
#4 0x000000000040d4a3 in main (argc=11, argv=<value optimized out>) at
ffmpeg.c:4319
(gdb) disass $pc-32 $pc+32
Dump of assembler code from 0x5c43be to 0x5c43fe:
0x00000000005c43be <h264_mp4toannexb_filter+1102>: rex.WXB add
%rax,-0x77(%r9)
0x00000000005c43c2 <h264_mp4toannexb_filter+1106>: (bad)
0x00000000005c43c5 <h264_mp4toannexb_filter+1109>: decl (%rdi)
0x00000000005c43c7 <h264_mp4toannexb_filter+1111>: test
%edx,-0x1(%rdi,%rdi,8)
0x00000000005c43cb <h264_mp4toannexb_filter+1115>: decl -0x77(%rax)
0x00000000005c43ce <h264_mp4toannexb_filter+1118>: callq 0x24b8cf1b
0x00000000005c43d3 <h264_mp4toannexb_filter+1123>: and %cl,-0x75(%rax)
0x00000000005c43d6 <h264_mp4toannexb_filter+1126>: insb (%dx),%es:(%rdi)
0x00000000005c43d7 <h264_mp4toannexb_filter+1127>: and $0x30,%al
0x00000000005c43d9 <h264_mp4toannexb_filter+1129>: mov 0x40(%rsp),%r14
0x00000000005c43de <h264_mp4toannexb_filter+1134>: movq
$0x0,(%rax,%r12,1)
0x00000000005c43e6 <h264_mp4toannexb_filter+1142>: mov 0x38(%rsp),%rdx
0x00000000005c43eb <h264_mp4toannexb_filter+1147>: mov %rax,0x10(%rsp)
0x00000000005c43f0 <h264_mp4toannexb_filter+1152>: mov 0x20(%rdx),%rdi
0x00000000005c43f4 <h264_mp4toannexb_filter+1156>: callq 0x903480
<av_free>
0x00000000005c43f9 <h264_mp4toannexb_filter+1161>: mov 0x10(%rsp),%rax
End of assembler dump.
(gdb) info registers
rax 0x0 0
rbx 0x7fffffffc890 140737488341136
rcx 0x11dadf7 18722295
rdx 0x1 1
rsi 0x11e9670 18781808
rdi 0x11d9840 18716736
rbp 0x7fffffffc898 0x7fffffffc898
rsp 0x7fffffffc7d0 0x7fffffffc7d0
r8 0x7fffffffc898 140737488341144
r9 0x11ed4c0 18797760
r10 0xc870a0 13136032
r11 0x0 0
r12 0x0 0
r13 0x1 1
r14 0x11ed4c0 18797760
r15 0x0 0
rip 0x5c43de 0x5c43de <h264_mp4toannexb_filter+1134>
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
fctrl 0x37f 895
fstat 0x0 0
ftag 0xffff 65535
fiseg 0x0 0
fioff 0x0 0
foseg 0x0 0
fooff 0x0 0
fop 0x0 0
mxcsr 0x1fa0 [ PE IM DM ZM OM UM PM ]
----------
status: new -> open
substatus: new -> reproduced
topic: +avcodec
________________________________________________
FFmpeg issue tracker <[email protected]>
<https://roundup.ffmpeg.org/issue2386>
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