| 1 | GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
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| 2 | Copyright (C) 2018 Free Software Foundation, Inc.
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| 3 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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| 4 | This is free software: you are free to change and redistribute it.
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| 5 | There is NO WARRANTY, to the extent permitted by law. Type "show copying"
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| 6 | and "show warranty" for details.
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| 7 | This GDB was configured as "x86_64-linux-gnu".
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| 8 | Type "show configuration" for configuration details.
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| 9 | For bug reporting instructions, please see:
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| 10 | <http://www.gnu.org/software/gdb/bugs/>.
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| 11 | Find the GDB manual and other documentation resources online at:
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| 12 | <http://www.gnu.org/software/gdb/documentation/>.
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| 13 | For help, type "help".
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| 14 | Type "apropos word" to search for commands related to "word"...
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| 15 | Reading symbols from ../ffmpeg/ffmpeg_g...done.
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| 16 | (gdb) b ff_subtitles_queue_finalize
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| 17 | Breakpoint 1 at 0x198a763: file libavformat/subtitles.c, line 197.
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| 18 | (gdb) r
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| 19 | Starting program: ffmpeg_g -y -r 62 -i samples/webm/corpora/bc03b6a77ef2c3decfc000fd072c0af23351f271 -target dv -map 0 -c copy -c: a:106 mov_text -disposition: a:20 wmv2 -aframes 89 -r 95 -ab 989k -ac 13 -b:v 520k output/tmp.wve
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| 20 | [Thread debugging using libthread_db enabled]
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| 21 | Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
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| 22 | ffmpeg version N-94906-gcb8d6a4e3e Copyright (c) 2000-2019 the FFmpeg developers
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| 23 | built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
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| 24 | configuration: --cc=clang --cxx=clang++ --ld=clang --enable-debug --toolchain=clang-usan
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| 25 | libavutil 56. 35.100 / 56. 35.100
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| 26 | libavcodec 58. 56.101 / 58. 56.101
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| 27 | libavformat 58. 32.104 / 58. 32.104
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| 28 | libavdevice 58. 9.100 / 58. 9.100
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| 29 | libavfilter 7. 58.102 / 7. 58.102
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| 30 | libswscale 5. 6.100 / 5. 6.100
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| 31 | libswresample 3. 6.100 / 3. 6.100
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| 32 | [lrc @ 0x922db40] Format lrc detected only with low score of 5, misdetection possible!
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| 33 |
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| 34 | Breakpoint 1, ff_subtitles_queue_finalize (log_ctx=0x922db40, q=0x922ea80)
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| 35 | at libavformat/subtitles.c:197
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| 36 | 197 qsort(q->subs, q->nb_subs, sizeof(*q->subs),
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| 37 | (gdb) n
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| 38 | libavformat/subtitles.c:197:11: runtime error: null pointer passed as argument 1, which is declared to never be null
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| 39 | /usr/include/stdlib.h:828:30: note: nonnull attribute specified here
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| 40 | 198 q->sort == SUB_SORT_TS_POS ? cmp_pkt_sub_ts_pos
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| 41 | (gdb) bt
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| 42 | #0 ff_subtitles_queue_finalize (log_ctx=0x922db40, q=0x922ea80)
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| 43 | at libavformat/subtitles.c:198
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| 44 | #1 0x00000000015d13e6 in lrc_read_header (s=<optimized out>)
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| 45 | at libavformat/lrcdec.c:213
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| 46 | #2 0x00000000019ce98d in avformat_open_input (ps=0x7fffffffdaf0,
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| 47 | filename=0x7fffffffe501 "", fmt=<optimized out>, options=0x922d3d8)
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| 48 | at libavformat/utils.c:631
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| 49 | #3 0x0000000000431ce8 in open_input_file (o=0x7fffffffdbd8,
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| 50 | filename=0x7fffffffe5b0 "samples/webm/corpora/bc03b6a77ef2c3decfc000fd072c0af23351f271") at fftools/ffmpeg_opt.c:1104
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| 51 | #4 0x000000000042fb4f in open_files (l=0x922d2d8, inout=0x5bfe384 "input",
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| 52 | open_file=0x430710 <open_input_file>) at fftools/ffmpeg_opt.c:3275
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| 53 | #5 0x000000000042f840 in ffmpeg_parse_options (argc=<optimized out>,
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| 54 | argv=<optimized out>) at fftools/ffmpeg_opt.c:3315
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| 55 | #6 0x0000000000489a24 in main (argc=29, argv=0x7fffffffe218)
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| 56 | at fftools/ffmpeg.c:4872
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| 57 | (gdb) disass $pc-32,$pc+32
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| 58 | Dump of assembler code from 0x198a7a2 to 0x198a7e2:
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| 59 | 0x000000000198a7a2 <ff_subtitles_queue_finalize+82>: mov $0x7,%dh
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| 60 | 0x000000000198a7a4 <ff_subtitles_queue_finalize+84>: add %al,(%rax)
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| 61 | 0x000000000198a7a6 <ff_subtitles_queue_finalize+86>: test %cl,%cl
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| 62 | 0x000000000198a7a8 <ff_subtitles_queue_finalize+88>: je 0x198af77 <ff_subtitles_queue_finalize+2087>
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| 63 | 0x000000000198a7ae <ff_subtitles_queue_finalize+94>: lea 0x8(%rsi),%rax
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| 64 | 0x000000000198a7b2 <ff_subtitles_queue_finalize+98>: test $0x7,%al
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| 65 | 0x000000000198a7b4 <ff_subtitles_queue_finalize+100>: mov %rax,0x18(%rsp)
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| 66 | 0x000000000198a7b9 <ff_subtitles_queue_finalize+105>: jne 0x198af9b <ff_subtitles_queue_finalize+2123>
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| 67 | 0x000000000198a7bf <ff_subtitles_queue_finalize+111>: movslq (%rax),%rbp
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| 68 | => 0x000000000198a7c2 <ff_subtitles_queue_finalize+114>: test %cl,%cl
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| 69 | 0x000000000198a7c4 <ff_subtitles_queue_finalize+116>: je 0x198afc1 <ff_subtitles_queue_finalize+2161>
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| 70 | 0x000000000198a7ca <ff_subtitles_queue_finalize+122>: lea 0x14(%rsi),%rbx
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| 71 | 0x000000000198a7ce <ff_subtitles_queue_finalize+126>: test $0x3,%bl
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| 72 | 0x000000000198a7d1 <ff_subtitles_queue_finalize+129>: jne 0x198afdd <ff_subtitles_queue_finalize+2189>
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| 73 | 0x000000000198a7d7 <ff_subtitles_queue_finalize+135>: cmpl $0x0,(%rbx)
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| 74 | 0x000000000198a7da <ff_subtitles_queue_finalize+138>: mov $0x198c1b0,%eax
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| 75 | 0x000000000198a7df <ff_subtitles_queue_finalize+143>: mov $0x198c550,%ecx
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| 76 | End of assembler dump.
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| 77 | (gdb) info all-registers
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| 78 | rax 0x922ea88 153283208
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| 79 | rbx 0x9236c01 153316353
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| 80 | rcx 0x419301 4297473
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| 81 | rdx 0x6d 109
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| 82 | rsi 0x922ea80 153283200
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| 83 | rdi 0x7fffffffcef1 140737488342769
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| 84 | rbp 0x0 0x0
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| 85 | rsp 0x7fffffffd120 0x7fffffffd120
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| 86 | r8 0x1 1
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| 87 | r9 0x0 0
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| 88 | r10 0x0 0
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| 89 | r11 0x202 514
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| 90 | r12 0x9236cc0 153316544
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| 91 | r13 0x0 0
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| 92 | r14 0x0 0
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| 93 | r15 0x922db40 153279296
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| 94 | rip 0x198a7c2 0x198a7c2 <ff_subtitles_queue_finalize+114>
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| 95 | eflags 0x246 [ PF ZF IF ]
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| 96 | cs 0x33 51
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| 97 | ss 0x2b 43
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| 98 | ds 0x0 0
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| 99 | es 0x0 0
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| 100 | fs 0x0 0
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| 101 | gs 0x0 0
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| 102 | st0 0 (raw 0x00000000000000000000)
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| 103 | st1 0 (raw 0x00000000000000000000)
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| 104 | st2 0 (raw 0x00000000000000000000)
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| 105 | st3 0 (raw 0x00000000000000000000)
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| 106 | st4 0 (raw 0x00000000000000000000)
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| 107 | st5 0 (raw 0x00000000000000000000)
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| 108 | st6 0 (raw 0x00000000000000000000)
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| 109 | st7 0 (raw 0x00000000000000000000)
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| 110 | fctrl 0xffff 65535
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| 111 | fstat 0xffff 65535
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| 112 | ftag 0xaaaa 43690
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| 113 | fiseg 0x1 1
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| 114 | fioff 0x0 0
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| 115 | foseg 0x55a6 21926
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| 116 | fooff 0xa 10
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| 117 | fop 0x7ff 2047
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| 118 | mxcsr 0x1fa0 [ PE IM DM ZM OM UM PM ]
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| 119 | ---Type <return> to continue, or q <return> to quit---
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| 120 | bndcfgu {raw = 0x0, config = {base = 0x0, reserved = 0x0, preserved = 0x0,
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| 121 | enabled = 0x0}} {raw = 0x0, config = {base = 0, reserved = 0,
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| 122 | preserved = 0, enabled = 0}}
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| 123 | bndstatus {raw = 0x0, status = {bde = 0x0, error = 0x0}} {raw = 0x0,
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| 124 | status = {bde = 0, error = 0}}
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| 125 | ymm0 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 126 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x8, 0x0, 0x0, 0x0, 0x30, 0x0, 0x0, 0x0,
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| 127 | 0xf0, 0xcd, 0xff, 0xff, 0xff, 0x7f, 0x0 <repeats 18 times>}, v16_int16 = {0x8,
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| 128 | 0x0, 0x30, 0x0, 0xcdf0, 0xffff, 0x7fff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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| 129 | 0x0, 0x0}, v8_int32 = {0x8, 0x30, 0xffffcdf0, 0x7fff, 0x0, 0x0, 0x0, 0x0},
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| 130 | v4_int64 = {0x3000000008, 0x7fffffffcdf0, 0x0, 0x0}, v2_int128 = {
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| 131 | 0x7fffffffcdf00000003000000008, 0x0}}
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| 132 | ymm1 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 133 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 134 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 135 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 136 | ymm2 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 137 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 138 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 139 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 140 | ymm3 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 141 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 142 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 143 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 144 | ymm4 {v8_float = {0x0, 0x0, 0x9f, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 145 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0xb0, 0x81, 0x10, 0xba, 0x81, 0x8, 0x53,
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| 146 | 0xb8, 0x81, 0x0, 0x1f, 0x43, 0xb6, 0x75, 0x1, 0x0 <repeats 17 times>},
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| 147 | v16_int16 = {0x81b0, 0xba10, 0x881, 0xb853, 0x81, 0x431f, 0x75b6, 0x1, 0x0, 0x0,
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| 148 | 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int32 = {0xba1081b0, 0xb8530881, 0x431f0081,
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| 149 | 0x175b6, 0x0, 0x0, 0x0, 0x0}, v4_int64 = {0xb8530881ba1081b0, 0x175b6431f0081,
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| 150 | 0x0, 0x0}, v2_int128 = {0x175b6431f0081b8530881ba1081b0, 0x0}}
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| 151 | ymm5 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 152 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 153 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 154 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 155 | ymm6 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 156 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 157 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 158 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 159 | ymm7 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 160 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 161 | ---Type <return> to continue, or q <return> to quit---
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| 162 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 163 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 164 | ymm8 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 165 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 166 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 167 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 168 | ymm9 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 169 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 170 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 171 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 172 | ymm10 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 173 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 174 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 175 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 176 | ymm11 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 177 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 178 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 179 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 180 | ymm12 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 181 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 182 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 183 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 184 | ymm13 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 185 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 186 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 187 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 188 | ymm14 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 189 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 190 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 191 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 192 | ymm15 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_double = {
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| 193 | 0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>}, v16_int16 = {
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| 194 | 0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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| 195 | v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
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| 196 | bnd0 {lbound = 0x0, ubound = 0xffffffffffffffff} : size -1 {lbound = 0x0, ubound = 0xffffffffffffffff} : size -1
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| 197 | bnd1 {lbound = 0x0, ubound = 0xffffffffffffffff} : size -1 {lbound = 0x0, ubound = 0xffffffffffffffff} : size -1
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| 198 | bnd2 {lbound = 0x0, ubound = 0xffffffffffffffff} : size -1 {lbound = 0x0, ubound = 0xffffffffffffffff} : size -1
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| 199 | bnd3 {lbound = 0x0, ubound = 0xffffffffffffffff} : size -1 {lbound = 0x---Type <return> to continue, or q <return> to quit---
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| 200 | 0, ubound = 0xffffffffffffffff} : size -1
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| 201 | (gdb)
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| 202 |
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