[Ffmpeg-devel] mpeg2 decoding error

[Alex]

I always got the following warning when decoding mpeg2 stream,
although it's decoded successfully. But it crashed several hours
later.

[mpeg2video @ 0x40612d68]end mismatch left=8922
[mpeg2video @ 0x40612d68]concealing 20 DC, 20 AC, 20 MV errors
[mpeg2video @ 0x40612d68]MPEG motion vector out of boundary
[mpeg2video @ 0x40612d68]MPEG motion vector out of boundary
[mpeg2video @ 0x40612d68]MPEG motion vector out of boundary
[mpeg2video @ 0x40612d68]end mismatch left=8923
[mpeg2video @ 0x40612d68]concealing 20 DC, 20 AC, 20 MV errors
[mpeg2video @ 0x40612d68]MPEG motion vector out of boundary
[mpeg2video @ 0x40612d68]end mismatch left=8925
[mpeg2video @ 0x40612d68]concealing 20 DC, 20 AC, 20 MV errors
[mpeg2video @ 0x40612d68]end mismatch left=5736
[mpeg2video @ 0x40612d68]concealing 20 DC, 20 AC, 20 MV errors
[mpeg2video @ 0x40612d68]MPEG motion vector out of boundary
[mpeg2video @ 0x40612d68]invalid cbp at 0 2

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 65541 (LWP 973)]
0x4084b56b in memset () from /lib/libc.so.6

(gdb) where
#0  0x4084b56b in memset () from /lib/libc.so.6
#1  0x40494ff3 in ff_er_add_slice (s=0xfffffff6, startx=30, starty=1, endx=0,
    endy=1073518590, status=14) at error_resilience.c:638
#2  0x4048177a in mpeg_decode_frame (avctx=0x40a5ec50, data=0x40a5ef40,
    data_size=0xbf1ff9ec, buf=0xbf1e3a9d "", buf_size=398) at mpeg12.c:3184
#3  0x40360a45 in avcodec_decode_video (avctx=0x40a5ec50, picture=0x0,
    got_picture_ptr=0xbf1ff9ec, buf=0x0, buf_size=2179) at utils.c:612