[Mplayer-advusers] ffmpeg mpeg12.c coredump

[Zoltan Hidvegi]

This checkin:
RCS file: /cvsroot/ffmpeg/ffmpeg/libavcodec/mpeg12.c,v
Working file: mpeg12.c
----------------------------
revision 1.199
date: 2004/04/19 03:33:23;  author: michael;  state: Exp;  lines: +3 -1
exporting field_select/ref_index values
----------------------------
causes a coredump on corrupted mpegs.  A sample:

ftp://ftp.mplayerhq.hu/MPlayer/incoming/ffmp2-apr-dump.ts

gdb --args ./mplayer ../samples/ffmp2-apr-dump.ts -tsprog 2 -vo null -vf crop -vfm ffmpeg -nosound -benchmark -noslices
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This GDB was configured as "i686-pc-linux-gnu"...
(gdb) run
Starting program: /usr/local/src/mplayercvs/main/mplayer ../samples/ffmp2-apr-dump.ts -tsprog 2 -vo null -vf crop -vfm ffmpeg -nosound -benchmark -noslices
 [New Thread 16384 (LWP 25619)]
MPlayer dev-CVS-040226-14:25-3.3.3 (C) 2000-2004 MPlayer Team

CPU: Advanced Micro Devices Athlon MP/XP/XP-M Barton 2330 MHz (Family: 6, Stepping: 0)
Detected cache-line size is 64 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE

Reading config file /etc/mplayer/mplayer.conf
Reading config file /home/hzoli/.mplayer/config
Reading /home/hzoli/.mplayer/codecs.conf: Can't open '/home/hzoli/.mplayer/codecs.conf': No such file or directory
Reading /etc/mplayer/codecs.conf: Can't open '/etc/mplayer/codecs.conf': No such file or directory
Using built-in default codecs.conf.
font: can't open file: /home/hzoli/.mplayer/font/font.desc
Font /usr/share/mplayer/font/font.desc loaded successfully! (206 chars)
Using Linux hardware RTC timing (1024Hz).
Can't open input config file /home/hzoli/.mplayer/input.conf: No such file or directory
Input config file /etc/mplayer/input.conf parsed: 52 binds
Setting up LIRC support...
mplayer: could not connect to socket
mplayer: Connection refused
Failed to open LIRC support.
You will not be able to use your remote control.

Playing ../samples/ffmp2-apr-dump.ts.
TS file format detected.
DEMUX OPEN, AUDIO_ID: -2, VIDEO_ID: -1, SUBTITLE_ID: -1,
PROBING UP TO 2000000, PROG: 2
VIDEO MPEG2(pid=33)...NO AUDIO!  NO SUBS (yet)!  PROGRAM N. 2
Opened TS demuxer, audio: ffffffff(pid -2), video: 10000002(pid 33)...POS=24415
VIDEO:  MPEG2  1920x1080  (aspect 3)  29.970 fps  45000.0 kbps (5625.0 kbyte/s)
SUB: Could not determine file format
Cannot load subtitles: ../samples/ffmp2-apr-dump.txt
Opening video filter: [crop]
Crop: -1 x -1, -1 ; -1
==========================================================================
Trying to force video codec driver family ffmpeg...
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmpeg2] vfm:ffmpeg (FFmpeg MPEG 2)
==========================================================================
Audio: no sound
Starting playback...
VDec: vo config request - 1920 x 1080 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [null] 1920x1080 => 1920x1080 Planar YV12 
 [mpeg2video @ 0x85d1520]00 motion_type at 101 36
 [mpeg2video @ 0x85d1520]concealing errors
 [mpeg2video @ 0x85d1520]Warning MVs not available
V:83088.9   19  179%  0%  0.0% 0 0 0%
Program received signal SIGSEGV, Segmentation fault.
 [Switching to Thread 16384 (LWP 25619)]
mpeg_decode_slice (s1=0x872b7d0, mb_y=0, buf=0xbfffd1a8, buf_size=142220536)
    at mpeg12.c:2349
2349                        s->current_picture.ref_index [dir][xy    ]=
(gdb) bt
#0  mpeg_decode_slice (s1=0x872b7d0, mb_y=0, buf=0xbfffd1a8, 
    buf_size=142220536) at mpeg12.c:2349
#1  0x0831cc95 in mpeg_decode_frame (avctx=0x872b2e0, data=0x872b200, 
    data_size=0xbfffd25c, buf=0x40ec2008 "", buf_size=36740) at mpeg12.c:2891
#2  0x082343b7 in avcodec_decode_video (avctx=0x872b2e0, picture=0x87a1cf8, 
    got_picture_ptr=0xbfffd25c, buf=0x87a1cf8 "", buf_size=142220536)
    at utils.c:487
#3  0x08111965 in decode (sh=0x872b720, data=0xbfffd25c, len=36740, 
    flags=141734624) at vd_ffmpeg.c:730
#4  0x0810bb34 in decode_video (sh_video=0x872b720, start=0x87a1cf8 "", 
    in_size=142220536, drop_frame=0) at dec_video.c:309
#5  0x08093dc9 in main (argc=13, argv=0xbffff734) at mplayer.c:2091
#6  0x40985da6 in __libc_start_main () from /lib/libc.so.6

Zoli