[MPlayer-dev-eng] Re: [PATCH] Seek in real media files

[陆然]

Hi,

> I tried a few samples from
>
> ftp://ftp.mplayerhq.hu/MPlayer/samples/real/
>
> with mixed success.
>
> ftp://ftp.mplayerhq.hu/MPlayer/samples/real/VC-RV30/lotr_trailer2_large.rm
>
> Works with -idx and -forceidx, but A-V sync goes bad after a few seeks
> back and forth

this file is a strange one, the generated index have only a few keyframes, but 
the seeking mechanics required an audio keyframe should be pass to the codec 
to avoid failure, so after seek there is usually a less-than-0.5-sec out of 
sync, however this one goes to even 2 secs. I just guess that has something 
to do with the keyframe, still need some time to test the file. 

> ftp://ftp.mplayerhq.hu/MPlayer/samples/real/Saber%20Marionette%20J%20-%2001
>%20-%20Lime%20Appears!%20A%20Planet%20of%20Men%20Only.rm
>
> Does not allow seeking with -idx and crashes with -forceidx.

This one I think is a damaged file. Even using realplay I cannot seek. -idx 
will disable the seeking if it cannot find a valid index. -forceidx seems 
sometimes failed to work with those damaged files then give you a crash. That 
why I recommend using -idx instead of -forceidx. :)

> Please tell me if you need more info to reproduce this.


-- 
Best Regards,
LR