[MPlayer-users] Extracting Subtitles from a Vob file

[Fabio Papa]

Giacomo Comes wrote:
> On Mon, May 16, 2005 at 05:39:48PM -0400, Rashkae wrote:
> 
>>On Mon, May 16, 2005 at 05:19:30PM -0400, Giacomo Comes wrote:
>>
>>
>>>The command seems correct. May be the VobSub file generated is bad?
>>>How appleseed.idx looks? (Post the beginning of the file up to the 
>>>first 10 lines containing timestamp:)
>>>
>>
>>
>>The idx file looks like:
>>
>># VobSub index file, v7 (do not modify this line!)
>>#
>># Generated by MPlayer 1.0pre7-3.3.4
>># See <URL:http://www.mplayerhq.hu/> for more information about MPlayer
>># See <URL:http://vobsub.edensrising.com/> for more information about Vobsub
>>#
>>size: 720x480
>># ON: displays only forced subtitles, OFF: shows everything
>>forced subs: OFF
>>
>># Language index in use
>>langidx: 0
>>
>>id: en, index: 0
>>timestamp: 00:00:22:180, filepos: 000000000
>>timestamp: 00:00:27:102, filepos: 000001800
>>timestamp: 00:00:32:073, filepos: 000002800
>>timestamp: 00:06:57:917, filepos: 000003800
>>timestamp: 00:07:21:216, filepos: 000004800
>>timestamp: 00:07:35:980, filepos: 000005000
>>timestamp: 00:07:43:179, filepos: 000006800
>>timestamp: 00:07:53:815, filepos: 000007800
>>timestamp: 00:08:43:907, filepos: 000008000
>>timestamp: 00:08:49:312, filepos: 000009000
>>timestamp: 00:08:55:485, filepos: 00000a000
>>timestamp: 00:09:01:741, filepos: 00000b000
>>timestamp: 00:09:04:686, filepos: 00000c000
>>timestamp: 00:09:07:714, filepos: 00000d000
>>timestamp: 00:09:10:358, filepos: 00000d800
>>timestamp: 00:09:15:922, filepos: 00000e800
>>timestamp: 00:09:19:234, filepos: 00000f800
>>timestamp: 00:09:22:070, filepos: 000010800
>>
>>
>>... and on and on :) 
> 
> 
> The idx file is ok. No idea why you are having problems.
> 
> May be the vob file is corrupted or mencoder has problem with it.
> 
> Giacomo

Hi,
I don't know if this is intended or not, but for me, vobsub extraction 
never worked with -ovc copy. I have to do something with the video also, 
otherwise mencoder doesn't "catch" the subs graphics, somehow.
I obtain good speed with -ovc raw and then specifying -vf format=yv12, 
and maybe also scale down the image to 16x16.
Hope this helps!

Fabio