[MPlayer-users] convert (S)VCD's to VDR files using MEncoder

[Nico]

Michael Reinelt wrote:

> Hi Nico,
>
>>>> VDR files are interleaved PES: a non-standard stuff made of mpeg-ps 
>>>> without Pack headers.
>>>> mencoder generates mpeg-ps files with headers, so not what you want.
>>>> I  think that VDR doesn't usually play those files, but maybe it 
>>>> evolved
>>>
>
>> DVB  transmits in MPEG-TS format, and IMHO that is the only thing  
>> that should be saved (because it's exactly what comes out of the card 
>> and of the drivers).
>> Mpeg-PES isn't editable by any software and there are no tools (that 
>> I know of) to convert it to -PS, instead -TS files can at least be 
>> converted.
>
>
> I know far too little about all this stuff, so I assume you are right. 
> Anyway - VDR can reindex and play the MPEG2-Files from MEncoder, so 
> I'm happy...
>
>>> I couldn't find anything about this mbd=2 option, could you please 
>>> give me a documentation pointer?
>>
>>
>>
>> it's in the man page (man mencoder), at least with mplayer 1.0-pre3.
>
>
> My fault. i'm using the CVS version, and forgot to specify '-dPA' on 
> 'cvs updated' So he didn't update the DOCS correctly.
>
>> :mbd=2:aspect=4/3:vpass=1:vbitrate=2500:vcodec=mpeg2video  and 
>> vrc_maxrate)
>
>                 ^^^
>
>>> as for the aspect, what happens if I get a (S)VCD in 16:9 format? (I 
>>> don't know if this is even possible..)
>>
>>
>> it's possible ( use :aspect=16/9) , but how it's played depends on 
>> the player: some will show it correctly, others will show it in 4:3  
>> aspect
>> (because the "standard" states 4:3 if I remember correctly).
>
>
> I meant if it's possible that a (S)VCD contains 16:9 material.
>
> Thanks again for the mbd hint, this works fine now! I even converted a 
> DVD to a VDR-File yesterday, works great!
>
> But there are still open questions:
> - aspect: for the DVD I had to specify 16:9. Is there a way to find 
> out the 'source aspect', except from starting MPlayer or MEncoder, 
> hitting Ctrl-C and reading some of the debugging output? I'd need this 
> value in a script... Same goes for 'source fps' and 'source 
> resolution' (to detect NTSC material, which has to be recoded to PAL)
>
I don't know

> - when mencoding the DVD, I got thousends of errors like:
> "Error in stream: PTS earlier than SCR!"
> "Error in stream: PTS to SCR delay 0 is too little!"
> "Error in stream: PTS to SCR delay 1148 is too little!"
>
> What do they mean? Should I be worried?
>
>
> bye, Michael
>
Maybe these are buffer underrun warnings (too little data in the decoder 
buffer), anyway
since mencoder's mpeg muxer has some problems. I suggest you to install 
libdvb (www.metzlerbros.de) and
to remux your encoded mpeg file with dvb-mplex; e.g.

dvb-mplex -t DVD -o dest.mpg orig.mpg

you can also specify -t VCD | XVCD | SVCD | XSVCD |  etc.