[mythtv-commits] Ticket #12905: SIGABRT in Decoder thread H264Parser::addbytes: malformed NAL units
MythTV
noreply at mythtv.org
Thu Oct 20 07:31:59 UTC 2016
#12905: SIGABRT in Decoder thread H264Parser::addbytes: malformed NAL units
-------------------------------------------------+-------------------------
Reporter: William L. DeRieux IV | Owner:
<WilliamDeRieux@…> |
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: Unspecified
Severity: medium | Keywords:
Ticket locked: 0 |
-------------------------------------------------+-------------------------
This issue occurred while I was watching an h264 stream from twit.tv
{{{
$ mythfrontend --version
Please attach all output as a file in bug reports.
MythTV Version : v0.28-72-g228b05b-dirty
MythTV Branch : fixes/0.28
Network Protocol : 88
Library API : 0.28.20160309-1
QT Version : 5.6.1
Options compiled in:
linux debug use_hidesyms using_alsa using_pulse using_backend
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using_libcec using_libcrypto using_libdns_sd using_libfftw3 using_libxml2
using_lirc using_mheg using_opengl using_opengl_video
using_opengl_themepainter using_qtwebkit using_qtscript using_qtdbus
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using_debugtype using_mythlogserver using_systemd_notify using_bdjava
using_bindings_perl using_bindings_python using_bindings_php
using_fontconfig using_freetype2 using_mythtranscode using_opengl
using_vaapi using_vdpau using_ffmpeg_threads using_mheg using_libass
using_libxml2
}}}
'''Short backtrace:'''
{{{
2016-10-20 03:12:30.706818 E H264Parser::addbytes: malformed NAL units
2016-10-20 03:12:30.706854 E AFD: Unknown decoding error
Thread 152 "Decoder" received signal SIGABRT, Aborted.
[Switching to Thread 0x7ffe6a2c5700 (LWP 12261)]
__GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:58
58 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0 0x00007fffe6c83fdf in __GI_raise (sig=sig at entry=6) at
../sysdeps/unix/sysv/linux/raise.c:58
#1 0x00007fffe6c8540a in __GI_abort () at abort.c:89
#2 0x00007ffff7160cd0 in av_image_copy_plane (dst=0x7ffe88959260 '\200'
<repeats 200 times>..., dst_linesize=64, src=0x7ffe88957920 '\200'
<repeats 200 times>..., src_linesize=64, bytewidth=854, height=480) at
libavutil/imgutils.c:293
#3 0x00007ffff7160f40 in av_image_copy (dst_data=0x7ffe889503c0,
dst_linesizes=0x7ffe88950400, src_data=0x7ffe8894f980,
src_linesizes=0x7ffe8894f9c0, pix_fmt=AV_PIX_FMT_YUV420P, width=854,
height=480) at libavutil/imgutils.c:334
#4 0x00007ffff5d08769 in ff_h264_decode_slice_header (h=0x7ffe889ed620,
sl=0x7ffe88a21d20) at libavcodec/h264_slice.c:1604
#5 0x00007ffff5c2b6c4 in decode_nal_units (h=0x7ffe889ed620,
buf=0x7ffe88112de0 "", buf_size=671, parse_extradata=0) at
libavcodec/h264.c:1527
#6 0x00007ffff5c2c636 in h264_decode_frame (avctx=0x7ffe8879c7c0,
data=0x7ffe8894ef40, got_frame=0x7ffe887a97c0, avpkt=0x7ffe887a9760) at
libavcodec/h264.c:1833
#7 0x00007ffff6007a8f in frame_worker_thread (arg=0x7ffe887a9660) at
libavcodec/pthread_frame.c:147
#8 0x00007fffe7892464 in start_thread (arg=0x7ffe6a2c5700) at
pthread_create.c:333
#9 0x00007fffe6d3997f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105
}}}
'''Full backtrace:'''
{{{
(gdb) bt full
#0 0x00007fffe6c83fdf in __GI_raise (sig=sig at entry=6) at
../sysdeps/unix/sysv/linux/raise.c:58
set =
{__val = {0, 210453397511, 0, 0, 472446402651,
140737341251624, 0, 140730658725775, 140730679711488, 50815968,
140730679708016, 140737351944660, 5, 0, 140733264612544, 140737065090520}}
pid = <optimized out>
tid = <optimized out>
#1 0x00007fffe6c8540a in __GI_abort () at abort.c:89
save_stage = 2
act =
{__sigaction_handler = {sa_handler = 0x7ffe6a2c48e8,
sa_sigaction = 0x7ffe6a2c48e8}, sa_mask = {__val = {140737339039784,
140737339039759, 293, 140731188103104, 140737338825181, 140730679707888,
24, 0, 4294967295, 1, 1, 140737306553336, 211965225992192, 75,
3667902070784, 140730679708016}}, sa_flags = -149552145, sa_restorer =
0x7ffe8879c7c0}
sigs = {__val = {32, 0 <repeats 15 times>}}
#2 0x00007ffff7160cd0 in av_image_copy_plane (dst=0x7ffe88959260 '\200'
<repeats 200 times>..., dst_linesize=64, src=0x7ffe88957920 '\200'
<repeats 200 times>..., src_linesize=64, bytewidth=854, height=480) at
libavutil/imgutils.c:293
#3 0x00007ffff7160f40 in av_image_copy (dst_data=0x7ffe889503c0,
dst_linesizes=0x7ffe88950400, src_data=0x7ffe8894f980,
src_linesizes=0x7ffe8894f9c0, pix_fmt=AV_PIX_FMT_YUV420P, width=854,
height=480) at libavutil/imgutils.c:334
h = 480
bwidth = 854
i = 0
planes_nb = 3
desc = 0x7ffff73a88c0 <av_pix_fmt_descriptors>
#4 0x00007ffff5d08769 in ff_h264_decode_slice_header (h=0x7ffe889ed620,
sl=0x7ffe88a21d20) at libavcodec/h264_slice.c:1604
prev = 0x7ffe889edbb0
first_mb_in_slice = 0
pps_id = 0
ret = 0
slice_type = 3
tmp = 105004576
i = 16
j = 32766
last_pic_structure = 3
last_pic_droppable = 0
must_reinit = 0
needs_reinit = 1
field_pic_flag = 262528
bottom_field_flag = 32766
first_slice = 1
frame_num = 15
droppable = 1
picture_structure = 3
mb_aff_frame = 0
last_mb_aff_frame = 0
pps = 0x7ffe890d3620
#5 0x00007ffff5c2b6c4 in decode_nal_units (h=0x7ffe889ed620,
buf=0x7ffe88112de0 "", buf_size=671, parse_extradata=0) at
libavcodec/h264.c:1527
consumed = 385
dst_length = 384
bit_length = 3066
err = 0
ptr = 0x7fff06423e20
"\237\363\035\020\227\023\364\204~Ӱ\344g\266!M\214VM\326\300\352|!\264\326\351>O\001\227$!c\330̥\262\001\204\062\372\tg\256\264\225e\023i\301\231\277\320\001\222\225\021])\341\064\067\305K\323a+Y\200\327\035\224\066\066\325\306$<\273\210\226\260\355\300<\254]k\325>\246FM\345!]{\001x%N\223ʚ\317x\233\026\n\266\346nN\035\337\"\033rkd\271\300\343nX{ã\317W\334\316lXic\023\276OX\037\246\016{\323*б\246l\213ף\260\337m\372\224l\325X`\362\340\344J\a(\364\243Jp\344?|\321\374K\261\267\377\275\327IJ\271\370\276\t\023\273\266\225\366\317\37
---Type <return> to continue, or q <return> to quit---
7"...
nalsize = 385
avctx = 0x7ffe8879c7c0
sl = 0x7ffe88a21d20
buf_index = 389
context_count = 0
next_avc = 389
nals_needed = 1
nal_index = 1
idr_cleared = 0
ret = 0
#6 0x00007ffff5c2c636 in h264_decode_frame (avctx=0x7ffe8879c7c0,
data=0x7ffe8894ef40, got_frame=0x7ffe887a97c0, avpkt=0x7ffe887a9760) at
libavcodec/h264.c:1833
buf = 0x7ffe88112de0 ""
buf_size = 671
h = 0x7ffe889ed620
pict = 0x7ffe8894ef40
buf_index = 0
out = 0x7ffe887a9708
i = 32766
out_idx = -2003505344
ret = 32766
#7 0x00007ffff6007a8f in frame_worker_thread (arg=0x7ffe887a9660) at
libavcodec/pthread_frame.c:147
p = 0x7ffe887a9660
fctx = 0x7ffe8879c120
avctx = 0x7ffe8879c7c0
codec = 0x7ffff6a56a00 <ff_h264_decoder>
#8 0x00007fffe7892464 in start_thread (arg=0x7ffe6a2c5700) at
pthread_create.c:333
__res = <optimized out>
pd = 0x7ffe6a2c5700
now = <optimized out>
unwind_buf =
{cancel_jmp_buf = {{jmp_buf = {140730679711488,
-8216146740237899032, 0, 140730658725775, 140730679711488, 50815968,
8216455001407679208, 8216163312161319656}, mask_was_saved = 0}}, priv =
{pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype
= 0}}}
not_first_call = <optimized out>
pagesize_m1 = <optimized out>
sp = <optimized out>
freesize = <optimized out>
__PRETTY_FUNCTION__ = "start_thread"
#9 0x00007fffe6d3997f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105
}}}
--
Ticket URL: <https://code.mythtv.org/trac/ticket/12905>
MythTV <http://www.mythtv.org>
MythTV Media Center
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