Hi, I think there is a bug when playing h264 video with framedrop, I don't have a specifical way to reproduce it, and I tried to gdb the crash but bt does not show anything useful (Previous frame inner to this frame (corrupt stack?)), only thing I know is when watching h264 files, if frames need to be constantly droped, wait long enough and mplayer will crash. and the rash message is like this: [h264 @ 0x8565188]illegal short term buffer state detected3.4% 19 0 [h264 @ 0x8565188]illegal short term buffer state detected4.9% 132 0 mplayer: h264.c:2316: mc_dir_part: Assertion `pic->data[0]' failed.0 MPlayer interrupted by signal 6 in module: decode_video - MPlayer crashed. This shouldn't happen. It can be a bug in the MPlayer code _or_ in your drivers _or_ in your gcc version. If you think it's MPlayer's fault, please read DOCS/HTML/en/bugreports.html and follow the instructions there. We can't and won't help unless you provide this information when reporting a possible bug. This seems happen to many files, so I don't think it's a file-specific problem. BTW, I also found some video files with 'x264' fourcc, and apparently mplayer cannot play them, but if I modify the codecs.conf to decode them with ffh264, it works well. does 'x264' just another fourcc of h264 or there is some subtle difference should be cared about? -- Best Regards, LR