[FFmpeg-trac] #6724(undetermined:new): FFmpeg freezes while downloading an HLS stream
FFmpeg
trac at avcodec.org
Mon Oct 9 04:34:05 EEST 2017
#6724: FFmpeg freezes while downloading an HLS stream
-------------------------------------+-------------------------------------
Reporter: | Owner:
dimitry_ishenko | Status: new
Type: defect | Component:
Priority: normal | undetermined
Version: unspecified | Resolution:
Keywords: hls | Blocked By:
deadlock | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by dimitry_ishenko):
@cehoyos, that's fine. My package manager takes care of all of that.
Here is (hopefully more useful) backtrace with latest git version:
{{{
(gdb) thread apply all bt
Thread 1 (Thread 0x7ffff7f7d9c0 (LWP 5062)):
#0 0x00007ffff4b9ba20 in __poll_nocancel () from /lib64/libc.so.6
#1 0x00007ffff7439c5c in poll (__timeout=100, __nfds=1,
__fds=0x7fffffffb6e0) at /usr/include/bits/poll2.h:46
#2 ff_network_wait_fd (fd=<optimized out>, write=<optimized out>) at
src/libavformat/network.c:78
#3 0x00007ffff7439cca in ff_network_wait_fd_timeout (fd=4,
write=write at entry=0, timeout=0, int_cb=0x746610)
at src/libavformat/network.c:90
#4 0x00007ffff749005a in tcp_read (h=<optimized out>,
buf=0x6ab41d
"/\212\001\235h\311\314m\246\341\350tI\264A\022\356\347\031l\340\070\237\331\070\260\030#{(y'~X5T\304qtׇ\372\344Ż\270\271\332\022\367\271A\a=\207\222֙\255\v\025\r\341r\020Z\244\365:\210\225\331\351\212]\230\222\277\065\037\370v\324\025A\237\311j_\025$\260]\206\321$bҳQ\364s\376\214B>Ȼ\304\335\177\316\033\026\277\260\277\315Ʋ\377)\324\070ŏ\363\002g\206\263\b\261]\241>&\304s\316\an\221<A\222\vmpalrّ
\266ͻ\325Wl\204\001\002\351>\352\235Qp3\315#\020\215\210\213\202\217\253\222\320i\177\267\334\341|\331X\310W5\247\241\263\203\342\373",
<incomplete sequence \350>..., size=2387) at src/libavformat/tcp.c:218
#5 0x00007ffff7393738 in retry_transfer_wrapper
(transfer_func=0x7ffff7490010 <tcp_read>, size_min=1,
size=2387,
buf=0x6ab41d
"/\212\001\235h\311\314m\246\341\350tI\264A\022\356\347\031l\340\070\237\331\070\260\030#{(y'~X5T\304qtׇ\372\344Ż\270\271\332\022\367\271A\a=\207\222֙\255\v\025\r\341r\020Z\244\365:\210\225\331\351\212]\230\222\277\065\037\370v\324\025A\237\311j_\025$\260]\206\321$bҳQ\364s\376\214B>Ȼ\304\335\177\316\033\026\277\260\277\315Ʋ\377)\324\070ŏ\363\002g\206\263\b\261]\241>&\304s\316\an\221<A\222\vmpalrّ
\266ͻ\325Wl\204\001\002\351>\352\235Qp3\315#\020\215\210\213\202\217\253\222\320i\177\267\334\341|\331X\310W5\247\241\263\203\342\373",
<incomplete sequence \350>..., h=0x7465e0) at src/libavformat/avio.c:376
#6 ffurl_read (h=0x7465e0,
buf=buf at entry=0x6ab41d
"/\212\001\235h\311\314m\246\341\350tI\264A\022\356\347\031l\340\070\237\331\070\260\030#{(y'~X5T\304qtׇ\372\344Ż\270\271\332\022\367\271A\a=\207\222֙\255\v\025\r\341r\020Z\244\365:\210\225\331\351\212]\230\222\277\065\037\370v\324\025A\237\311j_\025$\260]\206\321$bҳQ\364s\376\214B>Ȼ\304\335\177\316\033\026\277\260\277\315Ʋ\377)\324\070ŏ\363\002g\206\263\b\261]\241>&\304s\316\an\221<A\222\vmpalrّ
\266ͻ\325Wl\204\001\---Type <return> to continue, or q <return> to quit---
002\351>\352\235Qp3\315#\020\215\210\213\202\217\253\222\320i\177\267\334\341|\331X\310W5\247\241\263\203\342\373",
<incomplete sequence \350>..., size=size at entry=2387) at
src/libavformat/avio.c:409
#7 0x00007ffff73cf6e5 in http_buf_read (h=h at entry=0x94d9e0,
buf=buf at entry=0x6ab41d
"/\212\001\235h\311\314m\246\341\350tI\264A\022\356\347\031l\340\070\237\331\070\260\030#{(y'~X5T\304qtׇ\372\344Ż\270\271\332\022\367\271A\a=\207\222֙\255\v\025\r\341r\020Z\244\365:\210\225\331\351\212]\230\222\277\065\037\370v\324\025A\237\311j_\025$\260]\206\321$bҳQ\364s\376\214B>Ȼ\304\335\177\316\033\026\277\260\277\315Ʋ\377)\324\070ŏ\363\002g\206\263\b\261]\241>&\304s\316\an\221<A\222\vmpalrّ
\266ͻ\325Wl\204\001\002\351>\352\235Qp3\315#\020\215\210\213\202\217\253\222\320i\177\267\334\341|\331X\310W5\247\241\263\203\342\373",
<incomplete sequence \350>..., size=size at entry=2387) at
src/libavformat/http.c:1321
#8 0x00007ffff73d22e4 in http_read_stream (h=h at entry=0x94d9e0,
buf=buf at entry=0x6ab41d
"/\212\001\235h\311\314m\246\341\350tI\264A\022\356\347\031l\340\070\237\331\070\260\030#{(y'~X5T\304qtׇ\372\344Ż\270\271\332\022\367\271A\a=\207\222֙\255\v\025\r\341r\020Z\244\365:\210\225\331\351\212]\230\222\277\065\037\370v\324\025A\237\311j_\025$\260]\206\321$bҳQ\364s\376\214B>Ȼ\304\335\177\316\033\026\277\260\277\315Ʋ\377)\324\070ŏ\363\002g\206\263\b\261]\241>&\304s\316\an\221<A\222\vmpalrّ
\266ͻ\325Wl\204\001\002\351>\352\235Qp3\315#\020\215\210\213\202\217\253\222\320i\177\267\334\341|\331X\310W5\247\241\263\203\342\373",
<incomplete sequence \350>..., size=2387) at src/libavformat/http.c:1394
#9 0x00007ffff73d2760 in http_read (h=0x94d9e0,
buf=0x6ab41d
"/\212\001\235h\311\314m\246\341\350tI\264A\022\356\347\031l\340\070\237\331\070\260\030#{(y'~X5T\304qtׇ\372\344Ż\270\271\332\022\367\271A\a=\207\222֙\255\v\025\r\341r\020Z\244\365:\210\225\331\351\212]\230\222\277\065\037\370v\324\025A\237\311j_\025$\260]\206\321$bҳQ\364s\376\214B>Ȼ\304\335\177\316\033\026\277\260\277\315Ʋ\377)\324\070ŏ\363\002g\206\263\b\261]\241>&\304s\316\an\221<A\222\vmpalrّ
\266ͻ\325Wl\204\001\002\351>\352\235Qp3\315#\020\215\210\213\202\217\253\222\320i\177\267\334\341|\331X\310W5\247\241\263\203\342\373",
<incomplete sequence \350>..., size=<optimized out>) at
src/libavformat/http.c:1506
#10 0x00007ffff7393738 in retry_transfer_wrapper
(transfer_func=0x7ffff73d2730 <http_read>, size_min=1,
size=2387,
buf=0x6ab41d
"/\212\001\235h\311\314m\246\341\350tI\264A\022\356\347\031l\340\070\237\331\070\260\030#{(y'~X5T\304qtׇ\372\344Ż\270\271\332\022\367\271A\a=\207\222֙\255\v\025\r\341r\020Z\244\365:\210\225\331\351\212]\230\2
---Type <return> to continue, or q <return> to quit---
22\277\065\037\370v\324\025A\237\311j_\025$\260]\206\321$bҳQ\364s\376\214B>Ȼ\304\335\177\316\033\026\277\260\277\315Ʋ\377)\324\070ŏ\363\002g\206\263\b\261]\241>&\304s\316\an\221<A\222\vmpalrّ
\266ͻ\325Wl\204\001\002\351>\352\235Qp3\315#\020\215\210\213\202\217\253\222\320i\177\267\334\341|\331X\310W5\247\241\263\203\342\373",
<incomplete sequence \350>..., h=0x94d9e0) at src/libavformat/avio.c:376
#11 ffurl_read (h=0x94d9e0,
buf=0x6ab41d
"/\212\001\235h\311\314m\246\341\350tI\264A\022\356\347\031l\340\070\237\331\070\260\030#{(y'~X5T\304qtׇ\372\344Ż\270\271\332\022\367\271A\a=\207\222֙\255\v\025\r\341r\020Z\244\365:\210\225\331\351\212]\230\222\277\065\037\370v\324\025A\237\311j_\025$\260]\206\321$bҳQ\364s\376\214B>Ȼ\304\335\177\316\033\026\277\260\277\315Ʋ\377)\324\070ŏ\363\002g\206\263\b\261]\241>&\304s\316\an\221<A\222\vmpalrّ
\266ͻ\325Wl\204\001\002\351>\352\235Qp3\315#\020\215\210\213\202\217\253\222\320i\177\267\334\341|\331X\310W5\247\241\263\203\342\373",
<incomplete sequence \350>..., size=2387) at src/libavformat/avio.c:409
#12 0x00007ffff73a0283 in crypto_read (h=<optimized out>,
buf=0x69cbc0 "Z\006n\311T\024\222T7*H0|\267\017a\206Zz۽\005\230i",
size=32768)
at src/libavformat/crypto.c:201
#13 0x00007ffff7393738 in retry_transfer_wrapper
(transfer_func=0x7ffff73a0220 <crypto_read>, size_min=1,
size=32768, buf=0x69cbc0
"Z\006n\311T\024\222T7*H0|\267\017a\206Zz۽\005\230i", h=0x769ed0)
at src/libavformat/avio.c:376
#14 ffurl_read (h=0x769ed0, buf=0x69cbc0
"Z\006n\311T\024\222T7*H0|\267\017a\206Zz۽\005\230i", size=32768)
at src/libavformat/avio.c:409
#15 0x00007ffff739493e in fill_buffer (s=s at entry=0x9d7d00) at
src/libavformat/aviobuf.c:573
#16 0x00007ffff739568c in avio_read (s=0x9d7d00,
buf=0x769270
"<]\251\361\262\234[\333\326&~\223T\266aZ\\\a\314/\316\354\261!r\224\234\361>\bv\356\331\360,,o\212\315\353\237\002\245L\021\322\177\060\005\341@ƒ$\322hj\211ݔ\301xDr\205\333)\312+XNK\271\364V\230\212\225\225 at x8\350\030]kt\313<.2\260G\001\341\033\366\071\326\342\060m\205\301\216\b\006D1c!n\223;\035\274^\245\376В\020\060\277Ʌ\341Tw\n\354\330\063\257m\343\345A\253@\254\223|ojP\327\330&\367\264\374E`\300\261S%+.'\234\033t\347VT\231\353P\271\262\002\244\213l\350\070\337\345Ԡ4JV\340\377\305Bp\257\306!\004d\033P0\n\210"...,
buf at entry=0x761ec0
"\312\033\035\f\bP\240\022$\227%\335ܐ\002u\334*\232\320\026\263\261b\313\304\347s%;-J/\"\2
21\021\205\r\025E(\315kr%LWP\234\340
\037\026\230\252\367\210b+oHu\033\016C<\253\241g9\315\332\310:\350\212\307^^nL5ܢS\315%\266]ʩ\220\302\377\262k\340\246|\237\317\352|\265Y^\372\016q\376m@\214\035٪x\234\060P\016\272\315`\323a2t\214\344ʷ*8\344\374Ga\342\037",
size=3152) at src/libavformat/aviobuf.c:667
#17 0x00007ffff73c720c in read_from_url (
buf=buf at entry=0x761ec0
"\312\033\035\f\bP\240\022$\227%\335ܐ\002u\334*\232\320\026\263\261b\313\304\347s%;-J/\"\221\021\205\r\025E(\315kr%LWP\234\340
\037\026\230\252\367\210b+oHu\033\016C<\253\241g9\315\332\310:\350\212\307^^nL5ܢS\315%\266]ʩ\220\302\377\262k\340\246|\237\317\352|\265Y^\372\016q\376m@\214\035٪x\234\060P\016\272\315`\323a2t\214\344ʷ*8\344\374Ga\342\037",
buf_size=<optimized out>, buf_size at entry=32768,
mode=mode at entry=READ_NORMAL, seg=<optimized out>, pls=0x67bd90,
pls=0x67bd90) at src/libavformat/hls.c:896
#18 0x00007ffff73c9088 in read_data (opaque=0x67bd90,
buf=0x761ec0
"\312\033\035\f\bP\240\022$\227%\335ܐ\002u\334*\232\320\026\263\261b\313\304\347s%;-J/\"\221\021\205\r\025E(\315kr%LWP\234\340
\037\026\230\252\367\210b+oHu\033\016C<\253\241g9\315\332\310:\350\212\307^^nL5ܢS\315%\266]ʩ\220\302\377\262k\340\246|\237\317\352|\265Y^\372\016q\376m@\214\035٪x\234\060P\016\272\315`\323a2t\214\344ʷ*8\344\374Ga\342\037",
buf_size=32768) at src/libavformat/hls.c:1359
#19 0x00007ffff739493e in fill_buffer (s=s at entry=0x67cd90) at
src/libavformat/aviobuf.c:573
#20 0x00007ffff739568c in avio_read (s=0x67cd90, buf=0x7fffffffbc04 "",
buf at entry=0x7fffffffbbd0 "G!\342> ",
size=136) at src/libavformat/aviobuf.c:667
#21 0x00007ffff73957b4 in ffio_read_indirect (s=s at entry=0x67cd90,
buf=buf at entry=0x7fffffffbbd0 "G!\342> ",
size=size at entry=188, data=data at entry=0x7fffffffbbc8) at
src/libavformat/aviobuf.c:702
#22 0x00007ffff741dfe7 in read_packet (s=s at entry=0x68dcb0,
buf=buf at entry=0x7fffffffbbd0 "G!\342> ",
raw_packet_size=188, data=data at entry=0x7fffffffbbc8) at
src/libavformat/mpegts.c:2454
#23 0x00007ffff741f1ae in handle_packets (ts=ts at entry=0x6bfc10,
nb_packets=nb_packets at entry=0)
at src/libavformat/mpegts.c:2521
#24 0x00007ffff741f272 in mpegts_read_packet (s=<optimized out>,
pkt=0x7fffffffbe40)
at src/libavformat/mpegts.c:2775
#25 0x00007ffff749d52c in ff_read_packet (s=s at entry=0x68dcb0,
pkt=pkt at entry=0x7fffffffbe40)
at src/libavformat/utils.c:818
#26 0x00007ffff749de4e in read_frame_internal (s=s at entry=0x68dcb0,
pkt=0x67cec0) at src/libavformat/utils.c:1520
#27 0x00007ffff749ed6c in av_read_frame (s=0x68dcb0,
pkt=pkt at entry=0x67cec0) at src/libavformat/utils.c:1724
#28 0x00007ffff73c9af6 in hls_read_packet (s=0x675f20, pkt=0x7fffffffc180)
at src/libavformat/hls.c:1938
#29 0x00007ffff749d52c in ff_read_packet (s=s at entry=0x675f20,
pkt=pkt at entry=0x7fffffffc180)
at src/libavformat/utils.c:818
#30 0x00007ffff749de4e in read_frame_internal (s=s at entry=0x675f20,
pkt=0x7fffffffc3b0)
at src/libavformat/utils.c:1520
#31 0x00007ffff749ed6c in av_read_frame (s=0x675f20, pkt=0x7fffffffc3b0)
at src/libavformat/utils.c:1724
#32 0x0000000000408b17 in process_input (file_index=0) at
src/fftools/ffmpeg.c:4220
#33 transcode_step () at src/fftools/ffmpeg.c:4556
#34 transcode () at src/fftools/ffmpeg.c:4610
#35 main (argc=<optimized out>, argv=<optimized out>) at
src/fftools/ffmpeg.c:4816
(gdb)
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6724#comment:5>
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