[FFmpeg-trac] #5026(avformat:new): VPK files cause floating point exception
FFmpeg
trac at avcodec.org
Sat Nov 21 21:35:17 CET 2015
#5026: VPK files cause floating point exception
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Reporter: rxt | Type: defect
Status: new | Priority: normal
Component: avformat | Version: git-master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug:
ffmpeg/ffplay crashes with floating point exception when trying to decode
VPK files.
The VPK files that I'm feeding it are "Wing Commander Privateer Audio",
coming from MPlayer ticket http://trac.mplayerhq.hu/ticket/2252
They are probably not the same VPK files that libavformat can decode.
Files are attached.
gdb output:
{{{
(gdb) run -i /home/r/tht/qqsc/AGRRUM1.VPK /dev/null
Starting program: /home/r/Projects/ffmpeg-dev/ffmpeg_g -i
/home/r/tht/qqsc/AGRRUM1.VPK /dev/null
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
ffmpeg version N-76088-g8b1bc2b Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.9.2 (Debian 4.9.2-10)
configuration: --enable-gpl --enable-postproc --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-nonfree --enable-version3 --enable-
libmp3lame --samples=fate-suite/
libavutil 55. 7.100 / 55. 7.100
libavcodec 57. 15.100 / 57. 15.100
libavformat 57. 18.100 / 57. 18.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 15.100 / 6. 15.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[vpk @ 0x1baa340] Format vpk detected only with low score of 1,
misdetection possible!
Program received signal SIGFPE, Arithmetic exception.
0x000000000068aacd in vpk_read_header (s=0x1baa340) at
libavformat/vpk.c:65
65 vpk->block_count = (st->duration + (samples_per_block -
1)) / samples_per_block;
(gdb) bt
#0 0x000000000068aacd in vpk_read_header (s=0x1baa340) at
libavformat/vpk.c:65
#1 0x00000000006871d3 in avformat_open_input (ps=0x7fffffffdac8,
filename=<optimized out>, fmt=<optimized out>, options=0x1baa0a8)
at libavformat/utils.c:482
#2 0x000000000047f4b6 in open_input_file (o=0x7fffffffdd90,
filename=0x800002a <error: Cannot access memory at address 0x800002a>)
at ffmpeg_opt.c:950
#3 0x0000000000480a28 in open_files (inout=<optimized out>,
open_file=<optimized out>, l=<optimized out>, l=<optimized out>)
at ffmpeg_opt.c:2939
#4 ffmpeg_parse_options (argc=1, argv=0x0) at ffmpeg_opt.c:2976
#5 0x0000000000473def in main (argc=4, argv=0x7fffffffe298) at
ffmpeg.c:4273
(gdb)
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/5026>
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