[MPlayer-users] [Possible BUG]h264 incapable with framedrop?

Kichigai Mentat kichigai at comcast.net
Mon May 30 02:16:48 CEST 2005

On May 29, 2005, at 10.22, Lu Ran wrote:

> 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?
x264 and h264 are different. x264 is trying to be a more open version  
of h264, but it's got a long way to go before it's at the level that  
h264 is at right now. h264 decoders should be able to play them.  
MPlayer might be giving you this error if x264 (the codec/library  
itself) is not installed.
> --
> Best Regards,
> LR
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