[FFmpeg-trac] #4537(undetermined:new): segfault in av_buffer_unref when using Linphone 3.6.1
FFmpeg
trac at avcodec.org
Thu May 7 22:35:23 CEST 2015
#4537: segfault in av_buffer_unref when using Linphone 3.6.1
--------------------------------------+----------------------------------
Reporter: jkt | Type: defect
Status: new | Priority: normal
Component: undetermined | Version: 2.6.1
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
--------------------------------------+----------------------------------
(this is about ffmpeg 2.6.2 which isn't available in the version combobox)
I've switched from libav back to ffmpeg on an amd64 Gentoo Linux machine,
rebuilt linphone and tried to connect to our corporate videoconferencing
solution via a testing room is publicly available at
sip:950087999 at cesnet.cz. When I join a meeting with video, linphone
segfaults shortly after the video window pops up (with a black stuff from
the VC bridge, and an image of myself from a webcam at the corner).
{{{
x264 [warning]: lookaheadless mb-tree requires intra refresh or infinite
keyint
x264 [warning]: frame MB size (40x30) > level limit (396)
x264 [warning]: DPB size (3 frames, 3600 mbs) > level limit (1 frames,
2376 mbs)
x264 [warning]: VBV bitrate (1835) > level limit (768)
x264 [warning]: MB rate (30000) > level limit (11880)
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
x264 [info]: profile Constrained Baseline, level 1.3
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffe1c12700 (LWP 186997)]
av_buffer_unref (buf=buf at entry=0x7fffe1c11a08) at /var/tmp/portage/media-
video/ffmpeg-2.6.2/work/ffmpeg-2.6.2/libavutil/buffer.c:129
129 /var/tmp/portage/media-
video/ffmpeg-2.6.2/work/ffmpeg-2.6.2/libavutil/buffer.c: No such file or
directory.
(gdb) bt
#0 av_buffer_unref (buf=buf at entry=0x7fffe1c11a08) at /var/tmp/portage
/media-video/ffmpeg-2.6.2/work/ffmpeg-2.6.2/libavutil/buffer.c:129
#1 0x00007fffef6f3b4e in av_frame_unref
(frame=frame at entry=0x7fffe1c11830) at /var/tmp/portage/media-
video/ffmpeg-2.6.2/work/ffmpeg-2.6.2/libavutil/frame.c:384
#2 0x00007fffefd97eb1 in avcodec_decode_video2
(avctx=avctx at entry=0x7fffd4035510, picture=picture at entry=0x7fffe1c11830,
got_picture_ptr=got_picture_ptr at entry=0x7fffe1c117cc,
avpkt=avpkt at entry=0x7fffe1c117d0) at /var/tmp/portage/media-
video/ffmpeg-2.6.2/work/ffmpeg-2.6.2/libavcodec/utils.c:2356
#3 0x00007ffff57fa180 in dec_process_frame (f=f at entry=0x7fffd40181a0,
inm=<optimized out>) at videofilters/videodec.c:680
#4 0x00007ffff57fa74b in dec_process (f=0x7fffd40181a0) at
videofilters/videodec.c:709
#5 0x00007ffff795adb3 in ms_filter_process (f=f at entry=0x7fffd40181a0) at
base/msfilter.c:303
#6 0x00007ffff795bf12 in call_process (f=0x7fffd40181a0) at
base/msticker.c:228
#7 run_graph (f=0x7fffd40181a0, s=s at entry=0x555556103520,
unschedulable=unschedulable at entry=0x7fffe1c11ca0,
force_schedule=force_schedule at entry=0 '\000') at base/msticker.c:242
#8 0x00007ffff795beca in run_graph (f=0x555555b29620,
s=s at entry=0x555556103520,
unschedulable=unschedulable at entry=0x7fffe1c11ca0,
force_schedule=force_schedule at entry=0 '\000')
at base/msticker.c:247
#9 0x00007ffff795bfe2 in run_graphs (s=s at entry=0x555556103520,
execution_list=<optimized out>, force_schedule=force_schedule at entry=0
'\000') at base/msticker.c:261
#10 0x00007ffff795c517 in ms_ticker_run (arg=0x555556103520) at
base/msticker.c:440
#11 0x00007ffff751325a in start_thread (arg=0x7fffe1c12700) at
pthread_create.c:309
#12 0x00007ffff5b10ead in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0x7fffef6ebae3 to 0x7fffef6ebb23:
0x00007fffef6ebae3 <av_buffer_unref+19>: and %dl,(%rax)
0x00007fffef6ebae5 <av_buffer_unref+21>: add %al,(%rax)
0x00007fffef6ebae7 <av_buffer_unref+23>: mov %fs:0x28,%rax
0x00007fffef6ebaf0 <av_buffer_unref+32>: mov %rax,-0x8(%rbp)
0x00007fffef6ebaf4 <av_buffer_unref+36>: xor %eax,%eax
0x00007fffef6ebaf6 <av_buffer_unref+38>: test %rdi,%rdi
0x00007fffef6ebaf9 <av_buffer_unref+41>: je 0x7fffef6ebb1a
<av_buffer_unref+74>
0x00007fffef6ebafb <av_buffer_unref+43>: mov (%rdi),%rax
0x00007fffef6ebafe <av_buffer_unref+46>: test %rax,%rax
0x00007fffef6ebb01 <av_buffer_unref+49>: je 0x7fffef6ebb1a
<av_buffer_unref+74>
=> 0x00007fffef6ebb03 <av_buffer_unref+51>: mov (%rax),%rax
0x00007fffef6ebb06 <av_buffer_unref+54>: mov %rax,-0x10(%rbp)
0x00007fffef6ebb0a <av_buffer_unref+58>: callq 0x7fffef6fa230
<av_freep>
0x00007fffef6ebb0f <av_buffer_unref+63>: mov -0x10(%rbp),%rax
0x00007fffef6ebb13 <av_buffer_unref+67>: lock subl $0x1,0xc(%rax)
0x00007fffef6ebb18 <av_buffer_unref+72>: je 0x7fffef6ebb30
<av_buffer_unref+96>
0x00007fffef6ebb1a <av_buffer_unref+74>: mov -0x8(%rbp),%rax
0x00007fffef6ebb1e <av_buffer_unref+78>: xor %fs:0x28,%rax
End of assembler dump.
(gdb) info all-registers
rax 0x33e4b3022716cd00 3739310412451466496
rbx 0x10 16
rcx 0x555555b29250 93824998347344
rdx 0x555555b29990 93824998349200
rsi 0x7ffff5dc35f8 140737318237688
rdi 0x7fffe1c11a08 140736980916744
rbp 0x7fffe1c11650 0x7fffe1c11650
rsp 0x7fffe1c11640 0x7fffe1c11640
r8 0xffffffff 4294967295
r9 0x500 1280
r10 0x0 0
r11 0xac 172
r12 0x7fffe1c11830 140736980916272
r13 0x7fffe1c11a00 140736980916736
r14 0x7fffe1c117d0 140736980916176
r15 0x7fffd4035510 140736750376208
rip 0x7fffef6ebb03 0x7fffef6ebb03 <av_buffer_unref+51>
eflags 0x10206 [ PF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
st0 -nan(0x200020002fffd) (raw 0xffff000200020002fffd)
st1 -nan(0x100010001000504) (raw 0xffff0100010001000504)
st2 -nan(0xff00ff00ff00ff00) (raw 0xffffff00ff00ff00ff00)
st3 -nan(0xfff5fffffffdfff7) (raw 0xfffffff5fffffffdfff7)
st4 -nan(0xfffbfff9fff3fff9) (raw 0xfffffffbfff9fff3fff9)
st5 -inf (raw 0xffff0000000000000000)
st6 -inf (raw 0xffff0000000000000000)
st7 -nan(0x8000800080008000) (raw 0xffff8000800080008000)
fctrl 0x37f 895
fstat 0x0 0
ftag 0xffff 65535
fiseg 0x7fff 32767
fioff 0xf3646b0b -211522805
foseg 0x7fff 32767
fooff 0xffff8ca8 -29528
fop 0x0 0
mxcsr 0x1fa0 [ PE IM DM ZM OM UM PM ]
ymm0 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0xff, 0xff, 0xff, 0xff,
0xff, 0x0 <repeats 27 times>}, v16_int16 = {
0xffff, 0xffff, 0xff, 0x0 <repeats 13 times>}, v8_int32 = {0xffffffff,
0xff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int64 = {0xffffffffff, 0x0, 0x0,
0x0}, v2_int128 = {
0x0000000000000000000000ffffffffff,
0x00000000000000000000000000000000}}
ymm1 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x25 <repeats 16 times>, 0x0
<repeats 16 times>}, v16_int16 = {0x2525,
0x2525, 0x2525, 0x2525, 0x2525, 0x2525, 0x2525, 0x2525, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0}, v8_int32 = {0x25252525, 0x25252525, 0x25252525,
0x25252525, 0x0, 0x0, 0x0, 0x0},
v4_int64 = {0x2525252525252525, 0x2525252525252525, 0x0, 0x0}, v2_int128
= {0x25252525252525252525252525252525,
0x00000000000000000000000000000000}}
ymm2 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x8000000000000000, 0x8000000000000000, 0x0, 0x0}, v32_int8 =
{0x6f <repeats 16 times>,
0x0 <repeats 16 times>}, v16_int16 = {0x6f6f, 0x6f6f, 0x6f6f, 0x6f6f,
0x6f6f, 0x6f6f, 0x6f6f, 0x6f6f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v8_int32 = {0x6f6f6f6f, 0x6f6f6f6f,
0x6f6f6f6f, 0x6f6f6f6f, 0x0, 0x0, 0x0, 0x0}, v4_int64 =
{0x6f6f6f6f6f6f6f6f, 0x6f6f6f6f6f6f6f6f, 0x0, 0x0}, v2_int128 =
{0x6f6f6f6f6f6f6f6f6f6f6f6f6f6f6f6f,
0x00000000000000000000000000000000}}
ymm3 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>},
v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int64 = {0x0,
0x0, 0x0, 0x0}, v2_int128 = {0x00000000000000000000000000000000,
0x00000000000000000000000000000000}}
ymm4 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0xff, 0xff, 0xff, 0xff,
0xff, 0x0 <repeats 27 times>}, v16_int16 = {
0xffff, 0xffff, 0xff, 0x0 <repeats 13 times>}, v8_int32 = {0xffffffff,
0xff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int64 = {0xffffffffff, 0x0, 0x0,
0x0}, v2_int128 = {
0x0000000000000000000000ffffffffff,
0x00000000000000000000000000000000}}
ymm5 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x8000000000000000, 0x8000000000000000, 0x0, 0x0}, v32_int8 =
{0x0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0x0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0 <repeats 16
times>}, v16_int16 = {0xff00, 0xffff, 0xffff, 0xffff, 0xff00, 0xffff,
0xffff, 0xffff, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v8_int32 = {0xffffff00, 0xffffffff, 0xffffff00,
0xffffffff, 0x0, 0x0, 0x0, 0x0}, v4_int64 = {0xffffffffffffff00,
0xffffffffffffff00, 0x0, 0x0}, v2_int128 = {
0xffffffffffffff00ffffffffffffff00,
0x00000000000000000000000000000000}}
ymm6 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x8000000000000000, 0x0, 0x0}, v32_int8 = {0x0 <repeats
12 times>, 0xff, 0x0, 0xff, 0xff,
0x0 <repeats 16 times>}, v16_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0xff, 0xffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int32 = {0x0,
0x0, 0x0, 0xffff00ff, 0x0, 0x0, 0x0, 0x0},
v4_int64 = {0x0, 0xffff00ff00000000, 0x0, 0x0}, v2_int128 =
{0xffff00ff000000000000000000000000, 0x00000000000000000000000000000000}}
ymm7 {v8_float = {0x0, 0xfffffffd, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0}, v4_double = {0xffffffffffffffd2, 0x0, 0x0, 0x0}, v32_int8 = {0x5b,
0xaa, 0xa2, 0x2a, 0x9e, 0x6, 0x47, 0xc0,
0x0 <repeats 24 times>}, v16_int16 = {0xaa5b, 0x2aa2, 0x69e, 0xc047,
0x0 <repeats 12 times>}, v8_int32 = {0x2aa2aa5b, 0xc047069e, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0}, v4_int64 = {
0xc047069e2aa2aa5b, 0x0, 0x0, 0x0}, v2_int128 =
{0x0000000000000000c047069e2aa2aa5b, 0x00000000000000000000000000000000}}
ymm8 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x8000000000000000, 0x0, 0x0, 0x0}, v32_int8 = {0xe0, 0x0,
0x0, 0xb5, 0xf, 0xff, 0xff, 0xe0, 0x0, 0x0,
0xb9, 0xf, 0xff, 0xff, 0xe0, 0x0 <repeats 17 times>}, v16_int16 =
{0xe0, 0xb500, 0xff0f, 0xe0ff, 0x0, 0xfb9, 0xffff, 0xe0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0}, v8_int32 = {
0xb50000e0, 0xe0ffff0f, 0xfb90000, 0xe0ffff, 0x0, 0x0, 0x0, 0x0},
v4_int64 = {0xe0ffff0fb50000e0, 0xe0ffff0fb90000, 0x0, 0x0}, v2_int128 =
{0x00e0ffff0fb90000e0ffff0fb50000e0,
0x00000000000000000000000000000000}}
ymm9 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x34, 0x29, 0x37, 0x3d, 0x9,
0xba, 0x38, 0xbc, 0x0 <repeats 24 times>},
v16_int16 = {0x2934, 0x3d37, 0xba09, 0xbc38, 0x0 <repeats 12 times>},
v8_int32 = {0x3d372934, 0xbc38ba09, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_int64 = {0xbc38ba093d372934, 0x0, 0x0, 0x0},
v2_int128 = {0x0000000000000000bc38ba093d372934,
0x00000000000000000000000000000000}}
ymm10 {v8_float = {0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0xf6, 0x8f, 0xee, 0x21,
0xa8, 0x74, 0xd3, 0x3f,
0x0 <repeats 24 times>}, v16_int16 = {0x8ff6, 0x21ee, 0x74a8, 0x3fd3,
0x0 <repeats 12 times>}, v8_int32 = {0x21ee8ff6, 0x3fd374a8, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0}, v4_int64 = {
0x3fd374a821ee8ff6, 0x0, 0x0, 0x0}, v2_int128 =
{0x00000000000000003fd374a821ee8ff6, 0x00000000000000000000000000000000}}
ymm11 {v8_float = {0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x1, 0x0, 0x0, 0x0}, v32_int8 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0xf0, 0x3f, 0x0 <repeats 24 times>},
v16_int16 = {0x0, 0x0, 0x0, 0x3ff0, 0x0 <repeats 12 times>}, v8_int32 =
{0x0, 0x3ff00000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int64 =
{0x3ff0000000000000, 0x0, 0x0, 0x0}, v2_int128 = {
0x00000000000000003ff0000000000000,
0x00000000000000000000000000000000}}
ymm12 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x23, 0x42, 0x92, 0xc, 0xa1,
0x9c, 0xc7, 0x3b, 0x0 <repeats 24 times>},
v16_int16 = {0x4223, 0xc92, 0x9ca1, 0x3bc7, 0x0 <repeats 12 times>},
v8_int32 = {0xc924223, 0x3bc79ca1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int64
= {0x3bc79ca10c924223, 0x0, 0x0, 0x0},
v2_int128 = {0x00000000000000003bc79ca10c924223,
0x00000000000000000000000000000000}}
ymm13 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0xb3, 0x12, 0x58, 0x17,
0x64, 0x46, 0xe6, 0x3b,
0x0 <repeats 24 times>}, v16_int16 = {0x12b3, 0x1758, 0x4664, 0x3be6,
0x0 <repeats 12 times>}, v8_int32 = {0x175812b3, 0x3be64664, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0}, v4_int64 = {
0x3be64664175812b3, 0x0, 0x0, 0x0}, v2_int128 =
{0x00000000000000003be64664175812b3, 0x00000000000000000000000000000000}}
ymm14 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x8e, 0x85, 0x83, 0xe8,
0xf0, 0x24, 0x53, 0x3c,
0x0 <repeats 24 times>}, v16_int16 = {0x858e, 0xe883, 0x24f0, 0x3c53,
0x0 <repeats 12 times>}, v8_int32 = {0xe883858e, 0x3c5324f0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0}, v4_int64 = {
0x3c5324f0e883858e, 0x0, 0x0, 0x0}, v2_int128 =
{0x00000000000000003c5324f0e883858e, 0x00000000000000000000000000000000}}
ymm15 {v8_float = {0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x2d, 0x0, 0x0, 0x0}, v32_int8 = {0xc0, 0x9, 0xf2, 0x16,
0xb5, 0xdf, 0x46, 0x40,
0x0 <repeats 24 times>}, v16_int16 = {0x9c0, 0x16f2, 0xdfb5, 0x4046,
0x0 <repeats 12 times>}, v8_int32 = {0x16f209c0, 0x4046dfb5, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0}, v4_int64 = {
0x4046dfb516f209c0, 0x0, 0x0, 0x0}, v2_int128 =
{0x00000000000000004046dfb516f209c0, 0x00000000000000000000000000000000}}
}}}
{{{
$ ffmpeg
ffmpeg version 2.6.2 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.8.3 (Gentoo Hardened 4.8.3 p1.1, pie-0.5.9)
configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64
--mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc
--cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags='-O2
-pipe -march=native -mavx -maes -ggdb' --extra-cflags='-O2 -pipe
-march=native -mavx -maes -ggdb' --extra-cxxflags='-O2 -pipe -march=native
-mavx -maes -ggdb' --disable-static --enable-avfilter --enable-avresample
--disable-stripping --enable-version3 --enable-nonfree --disable-indev=oss
--disable-indev=jack --disable-outdev=oss --disable-outdev=sdl --enable-
bzlib --disable-runtime-cpudetect --disable-debug --disable-doc --disable-
gnutls --enable-gpl --enable-hardcoded-tables --enable-iconv --enable-lzma
--enable-network --disable-openssl --enable-postproc --disable-
libsmbclient --disable-ffplay --enable-vaapi --enable-vdpau --enable-xlib
--disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --enable-
zlib --disable-libcdio --disable-libiec61883 --disable-libdc1394
--disable-libcaca --disable-openal --enable-opengl --disable-libv4l2
--disable-libpulse --disable-libopencore-amrwb --disable-libopencore-amrnb
--disable-libfdk-aac --disable-libopenjpeg --disable-libbluray --disable-
libcelt --disable-libgme --enable-libgsm --disable-libmodplug --disable-
libopus --disable-libquvi --disable-librtmp --disable-libssh --disable-
libschroedinger --enable-libspeex --enable-libvorbis --disable-libvpx
--disable-libzvbi --disable-libbs2b --disable-libflite --disable-frei0r
--disable-libfribidi --enable-fontconfig --disable-ladspa --disable-libass
--enable-libfreetype --disable-libsoxr --enable-pthreads --enable-libvo-
aacenc --disable-libvo-amrwbenc --enable-libmp3lame --disable-libaacplus
--enable-libfaac --enable-libtheora --disable-libtwolame --disable-
libwavpack --disable-libwebp --enable-libx264 --disable-libx265 --enable-
libxvid --enable-x11grab --disable-amd3dnow --disable-amd3dnowext
--disable-avx2 --disable-fma3 --disable-fma4 --disable-xop --enable-pic
--cpu=host
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Hyper fast Audio and Video encoder
}}}
When running within valgrind, after a rather long sleeve of messages about
uninitialized values from the GTK style, V4L2 and ffmpeg itself, I get
this:
{{{
==191988== Invalid read of size 8
==191988== at 0xD2EDB03: av_buffer_unref (buffer.c:110)
==191988== by 0xD2F5B4D: av_frame_unref (frame.c:384)
==191988== by 0xC629EB0: avcodec_decode_video2 (utils.c:2356)
==191988== by 0x722A17F: dec_process_frame (videodec.c:680)
==191988== by 0x722A74A: dec_process (videodec.c:709)
==191988== by 0x50B1DB2: ms_filter_process (msfilter.c:303)
==191988== by 0x50B2F11: run_graph (msticker.c:228)
==191988== by 0x50B2EC9: run_graph (msticker.c:247)
==191988== by 0x50B2FE1: run_graphs (msticker.c:261)
==191988== by 0x50B3516: ms_ticker_run (msticker.c:440)
==191988== by 0x54EF259: start_thread (pthread_create.c:309)
==191988== by 0x6F2FEAC: clone (clone.S:111)
==191988== Address 0x37bc279cb4ec7c00 is not stack'd, malloc'd or
(recently) free'd
==191988==
==191988==
==191988== Process terminating with default action of signal 11 (SIGSEGV)
==191988== General Protection Fault
==191988== at 0xD2EDB03: av_buffer_unref (buffer.c:110)
==191988== by 0xD2F5B4D: av_frame_unref (frame.c:384)
==191988== by 0xC629EB0: avcodec_decode_video2 (utils.c:2356)
==191988== by 0x722A17F: dec_process_frame (videodec.c:680)
==191988== by 0x722A74A: dec_process (videodec.c:709)
==191988== by 0x50B1DB2: ms_filter_process (msfilter.c:303)
==191988== by 0x50B2F11: run_graph (msticker.c:228)
==191988== by 0x50B2EC9: run_graph (msticker.c:247)
==191988== by 0x50B2FE1: run_graphs (msticker.c:261)
==191988== by 0x50B3516: ms_ticker_run (msticker.c:440)
==191988== by 0x54EF259: start_thread (pthread_create.c:309)
==191988== by 0x6F2FEAC: clone (clone.S:111)
}}}
I have no idea how to extract the raw H.264 stream from the SIP channel,
unfortunately, but I'll be happy to help you reproduce this by providing
more data or by trying patches.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4537>
FFmpeg <https://ffmpeg.org>
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