(issue 2018)
Current FFmpeg git HEAD crashes for some samples when encoding with b-frames,
To produce a sample:
ffmpeg -i fate-suite/svq3/Vertical400kbit.sorenson3.mov -s 354x364 -qscale 2 -an out.mkv
(gdb) r -i out.mkv -bf 1 out2.mkv
FFmpeg version git-N-28742-g1caa412, Copyright (c) 2000-2011 the FFmpeg developers
built on Mar 31 2011 13:34:23 with gcc 4.4.1 [gcc-4_4-branch revision 150839]
configuration: --enable-libtheora
libavutil 50. 40. 0 / 50. 40. 0
libavcodec 52.116. 0 / 52.116. 0
libavformat 52.104. 0 / 52.104. 0
libavdevice 52. 4. 0 / 52. 4. 0
libavfilter 1. 76. 0 / 1. 76. 0
libswscale 0. 13. 0 / 0. 13. 0
[matroska,webm @ 0x122a650] Estimating duration from bitrate, this may be inaccurate
Input #0, matroska,webm, from 'out.mkv':
Metadata:
title : Vertical Online SV3 Demo
CREATION_TIME : 2001-03-20 16:17:18
TITLE-eng : Vertical Online SV3 Demo
ARTIST : Logan Kelsey
ARTIST-eng : Logan Kelsey
COPYRIGHT : © Vertical Online 2001
COPYRIGHT-eng : © Vertical Online 2001
ENCODER-eng : Sorenson Video 3
ENCODER : Lavf52.104.0
Duration: 00:00:43.60, start: 0.000000, bitrate: N/A
Stream #0.0(eng): Video: mpeg4, yuv420p, 354x364 [PAR 1:1 DAR 177:182], 30 fps, 30 tbr, 1k tbn, 30 tbc (default)
Metadata:
CREATION_TIME : 2001-03-20 16:17:18
LANGUAGE : eng
[buffer @ 0x1230ff0] w:354 h:364 pixfmt:yuv420p
[setdar @ 0x12314d0] a:71/73
[setdar @ 0x12314d0] w:354 h:364 -> dar:71/73 sar:1/1
Output #0, matroska, to 'out2.mkv':
Metadata:
title : Vertical Online SV3 Demo
CREATION_TIME : 2001-03-20 16:17:18
TITLE-eng : Vertical Online SV3 Demo
ARTIST : Logan Kelsey
ARTIST-eng : Logan Kelsey
COPYRIGHT : © Vertical Online 2001
COPYRIGHT-eng : © Vertical Online 2001
ENCODER-eng : Sorenson Video 3
encoder : Lavf52.104.0
Stream #0.0(eng): Video: mpeg4, yuv420p, 354x364 [PAR 1:1 DAR 177:182], q=2-31, 200 kb/s, 1k tbn, 30 tbc (default)
Metadata:
CREATION_TIME : 2001-03-20 16:17:18
LANGUAGE : eng
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop encoding
Program received signal SIGSEGV, Segmentation fault.
0x0000000000832b49 in sad16_sse2 (v=0x0,
blk2=0x1415832 '\030' <repeats 71 times>, "\031\032\033\033\033\032\032\033\033\033\033\033\033\033\033", '\030' <repeats 95 times>, "\031\032\032\033\033\033\032\032\031\030\030\030\030\030\030\030\030\030\030"...,
blk1=0x7ffff7e8fa82 '\030' <repeats 87 times>, "\031\032\033\033\033\033\032\033\033\033\033\033\033\033\032", '\030' <repeats 95 times>, "\031\032\032"..., stride=400, h=16) at libavcodec/x86/motion_est_mmx.c:96
96 __asm__ volatile(
(gdb) bt
#0 0x0000000000832b49 in sad16_sse2 (v=0x0,
blk2=0x1415832 '\030' <repeats 71 times>, "\031\032\033\033\033\032\032\033\033\033\033\033\033\033\033", '\030' <repeats 95 times>, "\031\032\032\033\033\033\032\032\031\030\030\030\030\030\030\030\030\030\030"...,
blk1=0x7ffff7e8fa82 '\030' <repeats 87 times>, "\031\032\033\033\033\033\032\033\033\033\033\033\033\033\032", '\030' <repeats 95 times>, "\031\032\032"..., stride=400, h=16) at libavcodec/x86/motion_est_mmx.c:96
#1 0x000000000065fb14 in mpeg4_encode_mb (s=0x1243aa0, block=0x1280a10, motion_x=<value optimized out>, motion_y=<value optimized out>) at libavcodec/mpeg4videoenc.c:670
#2 0x00000000006a17f5 in encode_mb_internal (mb_block_count=<value optimized out>, s=<value optimized out>, mb_block_height=<value optimized out>, motion_y=<value optimized out>, motion_x=<value optimized out>)
at libavcodec/mpegvideo_enc.c:1761
#3 encode_mb (mb_block_count=<value optimized out>, s=<value optimized out>, mb_block_height=<value optimized out>, motion_y=<value optimized out>, motion_x=<value optimized out>) at libavcodec/mpegvideo_enc.c:1797
#4 encode_thread (mb_block_count=<value optimized out>, s=<value optimized out>, mb_block_height=<value optimized out>, motion_y=<value optimized out>, motion_x=<value optimized out>) at libavcodec/mpegvideo_enc.c:2619
#5 0x0000000000753bff in avcodec_default_execute (c=0x122efd0, func=0x69ed50 <encode_thread>, arg=0x7ffff7e8fa82, ret=0x190, count=16, size=1) at libavcodec/utils.c:433
#6 0x00000000006901b7 in encode_picture (picture_number=<value optimized out>, s=<value optimized out>) at libavcodec/mpegvideo_enc.c:2982
#7 MPV_encode_picture (picture_number=<value optimized out>, s=<value optimized out>) at libavcodec/mpegvideo_enc.c:1270
#8 0x00000000007549b6 in avcodec_encode_video (avctx=0x122efd0, buf=0x7ffff7f10010 "", buf_size=773336, pict=0x7fffffffca10) at libavcodec/utils.c:618
#9 0x0000000000408adb in do_video_out (frame_size=<value optimized out>, in_picture=<value optimized out>, ist=<value optimized out>, ost=<value optimized out>, s=<value optimized out>) at ffmpeg.c:1267
#10 output_packet (frame_size=<value optimized out>, in_picture=<value optimized out>, ist=<value optimized out>, ost=<value optimized out>, s=<value optimized out>) at ffmpeg.c:1689
#11 0x000000000040ca96 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:2658
#12 0x000000000040d383 in main (argc=6, argv=<value optimized out>) at ffmpeg.c:4403
(gdb) disass $pc-25 $pc+32
Dump of assembler code from 0x832b30 to 0x832b69:
0x0000000000832b30 <sad16_sse2+0>: movslq %ecx,%rcx
0x0000000000832b33 <sad16_sse2+3>: pxor %xmm2,%xmm2
0x0000000000832b37 <sad16_sse2+7>: nopw 0x0(%rax,%rax,1)
0x0000000000832b40 <sad16_sse2+16>: movdqu (%rdx),%xmm0
0x0000000000832b44 <sad16_sse2+20>: movdqu (%rdx,%rcx,1),%xmm1
0x0000000000832b49 <sad16_sse2+25>: psadbw (%rsi),%xmm0
0x0000000000832b4d <sad16_sse2+29>: psadbw (%rsi,%rcx,1),%xmm1
0x0000000000832b52 <sad16_sse2+34>: paddw %xmm0,%xmm2
0x0000000000832b56 <sad16_sse2+38>: paddw %xmm1,%xmm2
0x0000000000832b5a <sad16_sse2+42>: lea (%rdx,%rcx,2),%rdx
0x0000000000832b5e <sad16_sse2+46>: lea (%rsi,%rcx,2),%rsi
0x0000000000832b62 <sad16_sse2+50>: sub $0x2,%r8d
0x0000000000832b66 <sad16_sse2+54>: jg 0x832b40 <sad16_sse2+16>
0x0000000000832b68 <sad16_sse2+56>: movhlps %xmm2,%xmm0
(gdb) info all-registers
rax 0x1259610 19240464
rbx 0x1243aa0 19151520
rcx 0x190 400
rdx 0x7ffff7e8fa82 140737352628866
rsi 0x1415832 21059634
rdi 0x0 0
rbp 0x152 0x152
rsp 0x7ffffffefa88 0x7ffffffefa88
r8 0x10 16
r9 0x1 1
r10 0x1 1
r11 0x0 0
r12 0x1415832 21059634
r13 0x1280a10 19401232
r14 0x0 0
r15 0x10 16
rip 0x832b49 0x832b49 <sad16_sse2+25>
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 0xaaaa 43690
fiseg 0x0 0
fioff 0x0 0
foseg 0x0 0
fooff 0x0 0
fop 0x0 0
xmm0 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x18 <repeats 16 times>}, v8_int16 = {0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818}, v4_int32 = {0x18181818, 0x18181818, 0x18181818,
0x18181818}, v2_int64 = {0x1818181818181818, 0x1818181818181818}, uint128 = 0x18181818181818181818181818181818}
xmm1 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x18 <repeats 16 times>}, v8_int16 = {0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818}, v4_int32 = {0x18181818, 0x18181818, 0x18181818,
0x18181818}, v2_int64 = {0x1818181818181818, 0x1818181818181818}, uint128 = 0x18181818181818181818181818181818}
xmm2 {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}
xmm3 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x1a <repeats 16 times>}, v8_int16 = {0x1a1a, 0x1a1a, 0x1a1a, 0x1a1a, 0x1a1a, 0x1a1a, 0x1a1a, 0x1a1a}, v4_int32 = {0x1a1a1a1a, 0x1a1a1a1a, 0x1a1a1a1a,
0x1a1a1a1a}, v2_int64 = {0x1a1a1a1a1a1a1a1a, 0x1a1a1a1a1a1a1a1a}, uint128 = 0x1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a}
xmm4 {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}
xmm5 {v4_float = {0x0, 0x1, 0x0, 0x0}, v2_double = {0x1, 0x0}, v16_int8 = {0xc6, 0x4b, 0x37, 0x89, 0x41, 0x0, 0xfe, 0x3f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x4bc6, 0x8937, 0x41, 0x3ffe, 0x0, 0x0, 0x0, 0x0},
v4_int32 = {0x89374bc6, 0x3ffe0041, 0x0, 0x0}, v2_int64 = {0x3ffe004189374bc6, 0x0}, uint128 = 0x00000000000000003ffe004189374bc6}
xmm6 {v4_float = {0x0, 0x3, 0x0, 0x0}, v2_double = {0x1fb, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0xa0, 0x8f, 0xb6, 0x7f, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0xa000, 0xb68f, 0x407f, 0x0, 0x0, 0x0, 0x0},
v4_int32 = {0xa0000000, 0x407fb68f, 0x0, 0x0}, v2_int64 = {0x407fb68fa0000000, 0x0}, uint128 = 0x0000000000000000407fb68fa0000000}
xmm7 {v4_float = {0x0, 0x1, 0x0, 0x0}, v2_double = {0x1, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x60, 0x9e, 0xa0, 0xf6, 0x3f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x6000, 0xa09e, 0x3ff6, 0x0, 0x0, 0x0, 0x0},
v4_int32 = {0x60000000, 0x3ff6a09e, 0x0, 0x0}, v2_int64 = {0x3ff6a09e60000000, 0x0}, uint128 = 0x00000000000000003ff6a09e60000000}
xmm8 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x8000, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {
0x0, 0x80000000, 0x0, 0x0}, v2_int64 = {0x8000000000000000, 0x0}, uint128 = 0x00000000000000008000000000000000}
xmm9 {v4_float = {0x0, 0x1, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0x3f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x3fe0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {
0x0, 0x3fe00000, 0x0, 0x0}, v2_int64 = {0x3fe0000000000000, 0x0}, uint128 = 0x00000000000000003fe0000000000000}
xmm10 {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}
xmm11 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0xbf, 0x2c, 0x42, 0x32, 0xef, 0xfc, 0x59, 0x3e, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x2cbf, 0x3242, 0xfcef, 0x3e59, 0x0, 0x0, 0x0,
0x0}, v4_int32 = {0x32422cbf, 0x3e59fcef, 0x0, 0x0}, v2_int64 = {0x3e59fcef32422cbf, 0x0}, uint128 = 0x00000000000000003e59fcef32422cbf}
xmm12 {v4_float = {0x0, 0x1, 0x0, 0x0}, v2_double = {0x1, 0x0}, v16_int8 = {0xfe, 0x82, 0x2b, 0x65, 0x47, 0x15, 0xf7, 0x3f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x82fe, 0x652b, 0x1547, 0x3ff7, 0x0, 0x0, 0x0,
---Type <return> to continue, or q <return> to quit---
0x0}, v4_int32 = {0x652b82fe, 0x3ff71547, 0x0, 0x0}, v2_int64 = {0x3ff71547652b82fe, 0x0}, uint128 = 0x00000000000000003ff71547652b82fe}
xmm13 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0xdc, 0xe8, 0x34, 0x76, 0xa6, 0x4b, 0x20, 0x3c, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0xe8dc, 0x7634, 0x4ba6, 0x3c20, 0x0, 0x0, 0x0,
0x0}, v4_int32 = {0x7634e8dc, 0x3c204ba6, 0x0, 0x0}, v2_int64 = {0x3c204ba67634e8dc, 0x0}, uint128 = 0x00000000000000003c204ba67634e8dc}
xmm14 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x90, 0x34, 0x37, 0xb9, 0x3d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x9000, 0x3734, 0x3db9, 0x0, 0x0, 0x0, 0x0},
v4_int32 = {0x90000000, 0x3db93734, 0x0, 0x0}, v2_int64 = {0x3db9373490000000, 0x0}, uint128 = 0x00000000000000003db9373490000000}
xmm15 {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}
mxcsr 0x1fa0 [ PE IM DM ZM OM UM PM ]
