[Ffmpeg-devel] h264 sample crash in sad16_mmx2

[Derk-Jan Hartman]

The following samples crash on my mac (Core2Duo), and on the original  
reporters Windows machine.

MPEG-TS capture of an RTP stream with heavy packetloss:
http://deneb.student.utwente.nl/~hartman/videolan/ 
avc_over_RTP_with_packetloss.ts

raw and mp4 dump of the same data.
Note that these have frameordering issues, but the crash effect is  
the same.
http://deneb.student.utwente.nl/~hartman/videolan/test.h264
http://deneb.student.utwente.nl/~hartman/videolan/test.mp4

Decoding crashes with:

#0  0x004ad2b4 in sad16_mmx2 (v=0x520, blk2=0x10 <Address 0x10 out of  
bounds>, blk1=0x35e <Address 0x35e out of bounds>, stride=0,  
h=83027041) at i386/motion_est_mmx.c:74
#1  0x0041793b in ff_er_frame_end (s=Cannot access memory at address  
0x155
) at error_resilience.c:587

But it all looks quite corrupt, so I guess it'll need a more detailed  
look.

DJ