Opened 5 years ago

Closed 5 years ago

#600 closed defect (fixed)

Crash (segmentation fault) decoding a bad flac (my fix incl.)

Reported by: BJoe Owned by:
Priority: important Component: avcodec
Version: git-master Keywords: flac crash SIGSEGV
Cc: Blocked By:
Blocking: Reproduced by developer: yes
Analyzed by developer: no

Description (last modified by cehoyos)

I am trying to decode a bad flac file
ffmpeg crashed (segmentation fault)

ffmpeg -i fileEEmUGd.flac output.wav

NOTE: I tried to provide a sample flac file for this, but when cut down to 10MB, I can't reproduce the crash. (currently I can cut it to 30MB for recreating the error)

MY FIX:
File: golomb.h
Function: get_ur_golomb_jpegls

Before:

}else{

int i;
for(i=0; SHOW_UBITS(re, gb, 1) == 0; i++){

LAST_SKIP_BITS(re, gb, 1);
UPDATE_CACHE(re, gb);

}

After:

}else{

int i;
for(i=0; SHOW_UBITS(re, gb, 1) == 0; i++){

if (get_bits_left(gb)<=0) return -1;
LAST_SKIP_BITS(re, gb, 1);
UPDATE_CACHE(re, gb);

}

EXPLANATION:
The for loop keeps reading bits with value '0' until value '1' appears, on a corrupted file, it keeps reading values until segmentation fault occurred.
If reading beyond the buffer size, return -1, as in case as the limit check (afterwards) fails.

linux@linux-VirtualBox:~/ffmpegtest/ffmpegnew/ffmpeg$ ./ffmpeg -v 9 -loglevel 99 -i fileEEmUGd.flac output.wav
ffmpeg version N-34109-g3e43758, Copyright (c) 2000-2011 the FFmpeg developers
  built on Oct 27 2011 11:45:37 with gcc 4.6.1
  configuration:
  libavutil    51. 22. 0 / 51. 22. 0
  libavcodec   53. 23. 0 / 53. 23. 0
  libavformat  53. 17. 0 / 53. 17. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 45. 0 /  2. 45. 0
  libswscale    2.  1. 0 /  2.  1. 0
[flac @ 0x2a32760] Format flac probed with size=2048 and score=50
[NULL @ 0x2a38ae0]   Max Blocksize: 4096
[NULL @ 0x2a38ae0]   Max Framesize: 12667
[NULL @ 0x2a38ae0]   Samplerate: 44100
[NULL @ 0x2a38ae0]   Channels: 2
[NULL @ 0x2a38ae0]   Bits: 16
[flac @ 0x2a38ae0] err{or,}_recognition separate: 1; 1
[flac @ 0x2a38ae0] err{or,}_recognition combined: 1; 1
[flac @ 0x2a38ae0]   Max Blocksize: 4096
[flac @ 0x2a38ae0]   Max Framesize: 12667
[flac @ 0x2a38ae0]   Samplerate: 44100
[flac @ 0x2a38ae0]   Channels: 2
[flac @ 0x2a38ae0]   Bits: 16
[flac @ 0x2a38ae0] sample/frame number mismatch in adjacent frames
    Last message repeated 65 times
[flac @ 0x2a38ae0] crc check failed from offset 57299 (frame 34) to 12121033 (frame 1251)
[flac @ 0x2a38ae0] sample/frame number mismatch in adjacent frames
[flac @ 0x2a38ae0] crc check failed from offset 50123 (frame 33) to 12121033 (frame 1251)
[flac @ 0x2a38ae0] sample/frame number mismatch in adjacent frames
[flac @ 0x2a38ae0] crc check failed from offset 42311 (frame 32) to 12121033 (frame 1251)
[flac @ 0x2a38ae0] sample/frame number mismatch in adjacent frames
[flac @ 0x2a38ae0] crc check failed from offset 51442 (frame 34) to 12126800 (frame 1252)
[flac @ 0x2a38ae0] sample/frame number mismatch in adjacent frames
[flac @ 0x2a38ae0] crc check failed from offset 44266 (frame 33) to 12126800 (frame 1252)
[flac @ 0x2a38ae0] sample/frame number mismatch in adjacent frames
    Last message repeated 1 times
[flac @ 0x2a38ae0] crc check failed from offset 44584 (frame 34) to 12131506 (frame 1253)
[flac @ 0x2a38ae0] sample/frame number mismatch in adjacent frames
    Last message repeated 5 times
[flac @ 0x2a38ae0] Junk frame till offset 12085549
[flac @ 0x2a32760] Probe buffer size limit 5000000 reached
Input #0, flac, from 'fileEEmUGd.flac':
  Metadata:
    track           : 4
    TITLE           : Blackest Eyes
    ARTIST          : Porcupine Tree
    ALBUM           : 2007-10-26 New Orleans, LA (tooligan Matrix) [FINAL MIX]
    DATE            : 2007
    GENRE           : Progressive Rock
  Duration: 00:05:33.69, bitrate: 819 kb/s
    Stream #0:0, 32, 1/44100: Audio: flac, 44100 Hz, stereo, s16
File 'output.wav' already exists. Overwrite ? [y/N] y
err{or,}_recognition separate: 1; 1
[pcm_s16le @ 0x2a2d5a0] err{or,}_recognition combined: 1; 1
[flac @ 0x2a38ae0] err{or,}_recognition separate: 1; 1
[flac @ 0x2a38ae0] err{or,}_recognition combined: 1; 1
[flac @ 0x2a38ae0]   Max Blocksize: 4096
[flac @ 0x2a38ae0]   Max Framesize: 12667
[flac @ 0x2a38ae0]   Samplerate: 44100
[flac @ 0x2a38ae0]   Channels: 2
[flac @ 0x2a38ae0]   Bits: 16
Output #0, wav, to 'output.wav':
  Metadata:
    track           : 4
    TITLE           : Blackest Eyes
    ARTIST          : Porcupine Tree
    ALBUM           : 2007-10-26 New Orleans, LA (tooligan Matrix) [FINAL MIX]
    DATE            : 2007
    GENRE           : Progressive Rock
    encoder         : Lavf53.17.0
    Stream #0:0, 0, 1/44100: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
  Stream #0.0 -> #0.0 (flac -> pcm_s16le)
Press [q] to stop, [?] for help
[flac @ 0x2a38ae0] underread: 12078722 orig size: 12085549
Multiple frames in a packet from stream 0
[flac @ 0x2a38ae0] underread: 12070910 orig size: 12078722
Multiple frames in a packet from stream 0
[flac @ 0x2a38ae0] underread: 12063734 orig size: 12070910
Multiple frames in a packet from stream 0
[flac @ 0x2a38ae0] overread: 266206
Error while decoding stream #0.0
[flac @ 0x2a38ae0] dropping low score 43 frame header from offset 0 to 6827
[flac @ 0x2a38ae0] dropping low score 33 frame header from offset 6827 to 14639
[flac @ 0x2a38ae0] dropping low score 23 frame header from offset 14639 to 21815
[flac @ 0x2a38ae0] dropping low score 13 frame header from offset 21815 to 12085549
[flac @ 0x2a38ae0] sample/frame number mismatch in adjacent frames
    Last message repeated 35 times
Segmentation faultme=00:00:04.73 bitrate=1383.6kbits/s
linux@linux-VirtualBox:~/ffmpegtest/ffmpegnew/ffmpeg$






(gdb) bt
#0  get_ur_golomb_jpegls (esc_len=0, limit=2147483647, k=9, gb=<optimized out>) at libavcodec/golomb.h:306
#1  get_sr_golomb_flac (esc_len=0, limit=2147483647, k=9, gb=0x13695a8) at libavcodec/golomb.h:348
#2  decode_residuals (s=0x1369580, channel=1, pred_order=<optimized out>) at libavcodec/flacdec.c:274
#3  0x0000000000601bf2 in decode_subframe_lpc (pred_order=6, channel=1, s=0x1369580) at libavcodec/flacdec.c:361
#4  decode_subframe (channel=1, s=0x1369580) at libavcodec/flacdec.c:443
#5  decode_frame (s=0x1369580) at libavcodec/flacdec.c:533
#6  flac_decode_frame (avctx=<optimized out>, data=0x7ffff4c59040, data_size=0x7fffffffc35c, avpkt=<optimized out>) at libavcodec/flacdec.c:583
#7  0x0000000000854d8a in avcodec_decode_audio3 (avctx=0x1373ae0, samples=<optimized out>, frame_size_ptr=<optimized out>, avpkt=<optimized out>)
    at libavcodec/utils.c:875
#8  0x0000000000438dd6 in output_packet (ist=<optimized out>, ist_index=0, ost_table=0x1368a70, nb_ostreams=1, pkt=<optimized out>) at ffmpeg.c:1666
#9  0x000000000043be01 in transcode (output_files=0x1368ce0, nb_output_files=1, input_files=0x1375110, nb_input_files=1) at ffmpeg.c:2635
#10 0x0000000000433ff2 in main (argc=<optimized out>, argv=0x7fffffffe658) at ffmpeg.c:4486
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0x601398 to 0x6013d8:
   0x0000000000601398 <decode_residuals+456>:   xor    %esi,%esi
   0x000000000060139a <decode_residuals+458>:   shr    $0xff,%ecx
   0x000000000060139d <decode_residuals+461>:   test   %ecx,%ecx
   0x000000000060139f <decode_residuals+463>:   jne    0x601464 <decode_residuals+660>
   0x00000000006013a5 <decode_residuals+469>:   nopl   (%rax)
   0x00000000006013a8 <decode_residuals+472>:   add    $0x1,%eax
   0x00000000006013ab <decode_residuals+475>:   add    $0x1,%esi
   0x00000000006013ae <decode_residuals+478>:   mov    %eax,%edx
   0x00000000006013b0 <decode_residuals+480>:   mov    %eax,%ecx
   0x00000000006013b2 <decode_residuals+482>:   and    $0x7,%ecx
   0x00000000006013b5 <decode_residuals+485>:   shr    $0x3,%edx
=> 0x00000000006013b8 <decode_residuals+488>:   mov    (%r8,%rdx,1),%edx
   0x00000000006013bc <decode_residuals+492>:   bswap  %edx
   0x00000000006013be <decode_residuals+494>:   shl    %cl,%edx
   0x00000000006013c0 <decode_residuals+496>:   mov    %edx,%ecx
   0x00000000006013c2 <decode_residuals+498>:   shr    $0xff,%ecx
   0x00000000006013c5 <decode_residuals+501>:   test   %ecx,%ecx
   0x00000000006013c7 <decode_residuals+503>:   je     0x6013a8 <decode_residuals+472>
   0x00000000006013c9 <decode_residuals+505>:   add    %edx,%edx
   0x00000000006013cb <decode_residuals+507>:   add    $0x1,%eax
   0x00000000006013ce <decode_residuals+510>:   cmp    $0x7ffffffd,%esi
   0x00000000006013d4 <decode_residuals+516>:   jle    0x6013f8 <decode_residuals+552>
   0x00000000006013d6 <decode_residuals+518>:   xor    %ecx,%ecx
End of assembler dump.
(gdb) info all-registers
rax            0xa6130a8        174141608
rbx            0x0      0
rcx            0x0      0
rdx            0x14c2615        21767701
rsi            0x107e08 1080840
rdi            0x1369580        20354432
rbp            0x1396050        0x1396050
rsp            0x7fffffffbdd0   0x7fffffffbdd0
r8             0x20049e8        33573352
r9             0xa50b2a0        173060768
r10            0xf4     244
r11            0x9      9
r12            0x200    512
r13            0x1f     31
r14            0x500    1280
r15            0x0      0
rip            0x6013b8 0x6013b8 <decode_residuals+488>
eflags         0x10202  [ IF RF ]
cs             0x33     51
ss             0x2b     43
ds             0x0      0
es             0x0      0
fs             0x0      0
gs             0x0      0
st0            0        (raw 0x00000000000000000000)
st1            0        (raw 0x00000000000000000000)
st2            0        (raw 0x00000000000000000000)
st3            0        (raw 0x00000000000000000000)
st4            0        (raw 0x00000000000000000000)
st5            0        (raw 0x00000000000000000000)
st6            0        (raw 0x00000000000000000000)
st7            0        (raw 0x00000000000000000000)
fctrl          0x37f    895
fstat          0x0      0
ftag           0xffff   65535
fiseg          0x0      0
fioff          0x0      0
foseg          0x0      0
fooff          0x0      0
fop            0x0      0
xmm0           {v4_float = {0x0, 0x8, 0x0, 0x0}, v2_double = {0x36000, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xb, 0x41, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x410b, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x410b0000, 0x0, 0x0}, v2_int64 = {0x410b000000000000, 0x0},
  uint128 = 0x0000000000000000410b000000000000}
xmm1           {v4_float = {0x0, 0x4d680000, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x0}, v16_int8 = {0x7d, 0xc3, 0x94, 0x25, 0xad, 0x49, 0xb2, 0x54,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0xc37d, 0x2594, 0x49ad, 0x54b2, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x2594c37d, 0x54b249ad, 0x0,
    0x0}, v2_int64 = {0x54b249ad2594c37d, 0x0}, uint128 = 0x000000000000000054b249ad2594c37d}
xmm2           {v4_float = {0x0, 0x7, 0x0, 0x0}, v2_double = {0xac44, 0x8000000000000000}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x80, 0x88, 0xe5, 0x40, 0xb,
    0xf0, 0x2c, 0xff, 0xa6, 0xe0, 0xf7, 0xf1}, v8_int16 = {0x0, 0x0, 0x8880, 0x40e5, 0xf00b, 0xff2c, 0xe0a6, 0xf1f7}, v4_int32 = {0x0, 0x40e58880,
    0xff2cf00b, 0xf1f7e0a6}, v2_int64 = {0x40e5888000000000, 0xf1f7e0a6ff2cf00b}, uint128 = 0xf1f7e0a6ff2cf00b40e5888000000000}
xmm3           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x0}, v16_int8 = {0x5d, 0xe5, 0xce, 0xef, 0x6b, 0xe8, 0xac, 0xef, 0xbd,
    0xf3, 0xac, 0xf5, 0xd3, 0x1, 0x6f, 0x2}, v8_int16 = {0xe55d, 0xefce, 0xe86b, 0xefac, 0xf3bd, 0xf5ac, 0x1d3, 0x26f}, v4_int32 = {0xefcee55d, 0xeface86b,
    0xf5acf3bd, 0x26f01d3}, v2_int64 = {0xeface86befcee55d, 0x26f01d3f5acf3bd}, uint128 = 0x026f01d3f5acf3bdeface86befcee55d}
xmm4           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xb1, 0x0, 0x52, 0xfc, 0x96, 0xff, 0xa4,
    0xfa, 0xd0, 0xf8, 0xaa, 0xf7, 0x1b, 0xed, 0x73, 0xf3}, v8_int16 = {0xb1, 0xfc52, 0xff96, 0xfaa4, 0xf8d0, 0xf7aa, 0xed1b, 0xf373}, v4_int32 = {
    0xfc5200b1, 0xfaa4ff96, 0xf7aaf8d0, 0xf373ed1b}, v2_int64 = {0xfaa4ff96fc5200b1, 0xf373ed1bf7aaf8d0}, uint128 = 0xf373ed1bf7aaf8d0faa4ff96fc5200b1}
xmm5           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0x1e, 0xa, 0x7c, 0xff, 0x8b, 0x4, 0xaf,
    0xf8, 0x7c, 0xfb, 0x49, 0xec, 0x6f, 0xf4, 0x6f, 0xe2}, v8_int16 = {0xa1e, 0xff7c, 0x48b, 0xf8af, 0xfb7c, 0xec49, 0xf46f, 0xe26f}, v4_int32 = {
    0xff7c0a1e, 0xf8af048b, 0xec49fb7c, 0xe26ff46f}, v2_int64 = {0xf8af048bff7c0a1e, 0xe26ff46fec49fb7c}, uint128 = 0xe26ff46fec49fb7cf8af048bff7c0a1e}
xmm6           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0x7c, 0xec, 0x2c, 0xf2, 0x73, 0xe7,
---Type <return> to continue, or q <return> to quit---
    0xc4, 0xed, 0x1b, 0xe5, 0xf4, 0xe9, 0x2a, 0xe5, 0x4b, 0xe6}, v8_int16 = {0xec7c, 0xf22c, 0xe773, 0xedc4, 0xe51b, 0xe9f4, 0xe52a, 0xe64b}, v4_int32 = {
    0xf22cec7c, 0xedc4e773, 0xe9f4e51b, 0xe64be52a}, v2_int64 = {0xedc4e773f22cec7c, 0xe64be52ae9f4e51b}, uint128 = 0xe64be52ae9f4e51bedc4e773f22cec7c}
xmm7           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0x7d, 0xe4, 0xac, 0xe4, 0x2d, 0xe3,
    0x4d, 0xe5, 0x78, 0xe1, 0xd9, 0xe3, 0x16, 0xe0, 0xf8, 0xdd}, v8_int16 = {0xe47d, 0xe4ac, 0xe32d, 0xe54d, 0xe178, 0xe3d9, 0xe016, 0xddf8}, v4_int32 = {
    0xe4ace47d, 0xe54de32d, 0xe3d9e178, 0xddf8e016}, v2_int64 = {0xe54de32de4ace47d, 0xddf8e016e3d9e178}, uint128 = 0xddf8e016e3d9e178e54de32de4ace47d}
xmm8           {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}
xmm9           {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}
xmm10          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x46, 0x84, 0x24, 0x59, 0xd6, 0x3e, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x8446, 0x5924, 0x3ed6, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x84460000, 0x3ed65924, 0x0, 0x0}, v2_int64 = {
    0x3ed6592484460000, 0x0}, uint128 = 0x00000000000000003ed6592484460000}
xmm11          {v4_float = {0x9689a800, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x6a, 0xa2, 0x65, 0x50, 0xf2, 0xea, 0x8f, 0xbd, 0xff, 0xff,
    0xff, 0x0, 0x0, 0x0, 0xff, 0x0}, v8_int16 = {0xa26a, 0x5065, 0xeaf2, 0xbd8f, 0xffff, 0xff, 0x0, 0xff}, v4_int32 = {0x5065a26a, 0xbd8feaf2, 0xffffff,
    0xff0000}, v2_int64 = {0xbd8feaf25065a26a, 0xff000000ffffff}, uint128 = 0x00ff000000ffffffbd8feaf25065a26a}
xmm12          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc4, 0x3c, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x3cc4, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x3cc40000, 0x0, 0x0}, v2_int64 = {0x3cc4000000000000, 0x0},
  uint128 = 0x00000000000000003cc4000000000000}
xmm13          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x59, 0xbc, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x8000, 0xbc59, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0xbc598000, 0x0, 0x0}, v2_int64 = {0xbc59800000000000,
    0x0}, uint128 = 0x0000000000000000bc59800000000000}
xmm14          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x8e, 0x85, 0x83, 0xe8, 0xf0, 0x24, 0x53, 0x3c, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x858e, 0xe883, 0x24f0, 0x3c53, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0xe883858e, 0x3c5324f0, 0x0, 0x0}, v2_int64 = {
    0x3c5324f0e883858e, 0x0}, uint128 = 0x00000000000000003c5324f0e883858e}
xmm15          {v4_float = {0x0, 0x3, 0x0, 0x0}, v2_double = {0x2d, 0x0}, v16_int8 = {0xc0, 0x9, 0xf2, 0x16, 0xb5, 0xdf, 0x46, 0x40, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x9c0, 0x16f2, 0xdfb5, 0x4046, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x16f209c0, 0x4046dfb5, 0x0, 0x0}, v2_int64 = {
    0x4046dfb516f209c0, 0x0}, uint128 = 0x00000000000000004046dfb516f209c0}
mxcsr          0x1fa0   [ PE IM DM ZM OM UM PM ]
(gdb)

Change History (4)

comment:1 Changed 5 years ago by cehoyos

  • Description modified (diff)

Please upload your 30MB sample to http://www.datafilehost.com and post the download link here.

comment:2 Changed 5 years ago by BJoe

Please find the audio sample here:
http://www.datafilehost.com/download-2465f636.html

comment:3 Changed 5 years ago by cehoyos

  • Keywords flac crash SIGSEGV added
  • Priority changed from normal to important
  • Reproduced by developer set
  • Status changed from new to open
  • Version changed from unspecified to git-master

Not reproducible on ia32.

(gdb) r -i small-fileEEmUGd.flac -f null -
Starting program: ffmpeg_g -i small-fileEEmUGd.flac -f null -
[Thread debugging using libthread_db enabled]
ffmpeg version N-34304-gc0dbab9, Copyright (c) 2000-2011 the FFmpeg developers
  built on Oct 31 2011 10:08:50 with gcc 4.5.3
  configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --disable-optimizations
  libavutil    51. 22. 0 / 51. 22. 0
  libavcodec   53. 26. 0 / 53. 26. 0
  libavformat  53. 18. 0 / 53. 18. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 45. 2 /  2. 45. 2
  libswscale    2.  1. 0 /  2.  1. 0
Input #0, flac, from 'small-fileEEmUGd.flac':
  Metadata:
    track           : 4
    TITLE           : Blackest Eyes
    ARTIST          : Porcupine Tree
    ALBUM           : 2007-10-26 New Orleans, LA (tooligan Matrix) [FINAL MIX]
    DATE            : 2007
    GENRE           : Progressive Rock
  Duration: 00:05:33.69, bitrate: 736 kb/s
    Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
Output #0, null, to 'pipe:':
  Metadata:
    track           : 4
    TITLE           : Blackest Eyes
    ARTIST          : Porcupine Tree
    ALBUM           : 2007-10-26 New Orleans, LA (tooligan Matrix) [FINAL MIX]
    DATE            : 2007
    GENRE           : Progressive Rock
    encoder         : Lavf53.18.0
    Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
  Stream #0.0 -> #0.0 (flac -> pcm_s16le)
Press [q] to stop, [?] for help
[flac @ 0x14afaa0] overread: 266343
Error while decoding stream #0.0
size=      -0kB time=00:00:04.73 bitrate=  -0.0kbits/s
Program received signal SIGSEGV, Segmentation fault.
0x000000000062d637 in get_ur_golomb_jpegls (gb=0x14a5368, k=9, limit=2147483647, esc_len=0)
    at libavcodec/golomb.h:306
306                 UPDATE_CACHE(re, gb);
(gdb) bt
#0  0x000000000062d637 in get_ur_golomb_jpegls (gb=0x14a5368, k=9, limit=2147483647, esc_len=0)
    at libavcodec/golomb.h:306
#1  0x000000000062d72e in get_sr_golomb_flac (gb=0x14a5368, k=9, limit=2147483647, esc_len=0)
    at libavcodec/golomb.h:348
#2  0x000000000062dfa6 in decode_residuals (s=0x14a5340, channel=1, pred_order=6)
    at libavcodec/flacdec.c:274
#3  0x000000000062e42d in decode_subframe_lpc (s=0x14a5340, channel=1, pred_order=6)
    at libavcodec/flacdec.c:361
#4  0x000000000062e92b in decode_subframe (s=0x14a5340, channel=1) at libavcodec/flacdec.c:443
#5  0x000000000062ed1e in decode_frame (s=0x14a5340) at libavcodec/flacdec.c:533
#6  0x000000000062eed5 in flac_decode_frame (avctx=0x14afaa0, data=0x7ffff340b040,
    data_size=0x7fffffffc4ec, avpkt=0x7fffffffc4f0) at libavcodec/flacdec.c:583
#7  0x000000000084479b in avcodec_decode_audio3 (avctx=0x14afaa0, samples=0x7ffff340b040,
    frame_size_ptr=0x7fffffffc4ec, avpkt=0x7fffffffc4f0) at libavcodec/utils.c:875
#8  0x000000000040a1c5 in output_packet (ist=0x14b1000, ist_index=0, ost_table=0x14af6a0, nb_ostreams=1,
    pkt=0x7fffffffd910) at ffmpeg.c:1666
#9  0x000000000040de7f in transcode (output_files=0x14af910, nb_output_files=1, input_files=0x14b10d0,
    nb_input_files=1) at ffmpeg.c:2636
#10 0x00000000004149fb in main (argc=6, argv=0x7fffffffdde8) at ffmpeg.c:4506
(gdb) disass $pc-32 $pc+32
Dump of assembler code from 0x62d617 to 0x62d657:
0x000000000062d617 <get_ur_golomb_jpegls+212>:  add    %al,(%rax)
0x000000000062d619 <get_ur_golomb_jpegls+214>:  add    %al,(%rax)
0x000000000062d61b <get_ur_golomb_jpegls+216>:  jmp    0x62d651 <get_ur_golomb_jpegls+270>
0x000000000062d61d <get_ur_golomb_jpegls+218>:  addl   $0x1,-0x10(%rbp)
0x000000000062d621 <get_ur_golomb_jpegls+222>:  mov    -0x30(%rbp),%rax
0x000000000062d625 <get_ur_golomb_jpegls+226>:  mov    (%rax),%rax
0x000000000062d628 <get_ur_golomb_jpegls+229>:  mov    %rax,%rdx
0x000000000062d62b <get_ur_golomb_jpegls+232>:  mov    -0x10(%rbp),%eax
0x000000000062d62e <get_ur_golomb_jpegls+235>:  shr    $0x3,%eax
0x000000000062d631 <get_ur_golomb_jpegls+238>:  mov    %eax,%eax
0x000000000062d633 <get_ur_golomb_jpegls+240>:  lea    (%rdx,%rax,1),%rax
0x000000000062d637 <get_ur_golomb_jpegls+244>:  mov    (%rax),%eax
0x000000000062d639 <get_ur_golomb_jpegls+246>:  mov    %eax,%edi
0x000000000062d63b <get_ur_golomb_jpegls+248>:  callq  0x62c9ba <av_bswap32>
0x000000000062d640 <get_ur_golomb_jpegls+253>:  mov    -0x10(%rbp),%edx
0x000000000062d643 <get_ur_golomb_jpegls+256>:  and    $0x7,%edx
0x000000000062d646 <get_ur_golomb_jpegls+259>:  mov    %edx,%ecx
0x000000000062d648 <get_ur_golomb_jpegls+261>:  shl    %cl,%eax
0x000000000062d64a <get_ur_golomb_jpegls+263>:  mov    %eax,-0x14(%rbp)
0x000000000062d64d <get_ur_golomb_jpegls+266>:  addl   $0x1,-0x18(%rbp)
0x000000000062d651 <get_ur_golomb_jpegls+270>:  mov    -0x14(%rbp),%eax
0x000000000062d654 <get_ur_golomb_jpegls+273>:  mov    $0x1,%esi
End of assembler dump.
(gdb) info register
rax            0x4414ffd        71389181
rbx            0x0      0
rcx            0xffffffff       4294967295
rdx            0x32a51c8        53105096
rsi            0x1      1
rdi            0x0      0
rbp            0x7fffffffc0a0   0x7fffffffc0a0
rsp            0x7fffffffc060   0x7fffffffc060
r8             0x62ed62 6483298
r9             0x0      0
r10            0x22     34
r11            0x246    582
r12            0x405500 4216064
r13            0x7fffffffdde0   140737488346592
r14            0x0      0
r15            0x0      0
rip            0x62d637 0x62d637 <get_ur_golomb_jpegls+244>
eflags         0x10206  [ PF 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 ]

comment:4 Changed 5 years ago by michael

  • Resolution set to fixed
  • Status changed from open to closed

Suggested change applied, thanks

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