[MPlayer-users] Streaming VOBs with subtitles to a Sony PS3 without re-encoding

[belcampo]

Adam Rosi-Kessel wrote:
> I've found many discussions on this and other lists about the problem of 
>  adding a subtitle stream to a VOB file. As best I can gather, it can't 
> be done. So I'm trying to figure out if there is any way to accomplish 
> what I'm trying to do with mplayer (or ffmpeg).
> 
> The Sony Playstation 3 can play video content served over DLNA/UPnP. I'm 
> running fuppes on a Debian server to provide the content. fuppes can't 
> serve a DVD in a VIDEO_TS directory -- it can only serve a single VOB 
> file. (Similarly, if you connect an external hard drive to the PS3, it 
> can only play a single VOB, not read a VIDEO_TS directory).
> 
> So I've taken my VIDEO_TS directory and combined the main title into a 
> single VOB with mencoder:
> 
> mencoder dvd://1 -dvd-device ./movie/ -alang en -channels 6 \
>   -of mpeg -mpegopts format=dvd -oac copy -ovc copy -o movie.vob
vobcopy -l -i path-to-sourcedvd
will create 1 vob in current directory with all subs.
mplayer bigvob.vob -sid #
works as I've just tested.
> 
> The output here works perfectly with fuppes and the PS3. (Just 
> concatenating the main title with cat doesn't work well; the status bar 
> is lost and rewinding/fast-forwarding often dies.)
> 
> The only problem with this method is no subtitles are brought over. 
> Specifying subtitle options for mencoder makes no difference (e.g. " 
> -sid 1 -spuaa 4 -spualign -1 -spugauss 0.7"); you get an identical 
> output file. I imagine this is because mencoder won't put a subtitle 
> stream in a VOB.
> 
> I could of course go through several steps to extract and burn the 
> subtitles into the image, but this would require re-encoding the video 
> with some quality loss.
> 
> There are some other container formats that might support a subtitle 
> stream, but I don't think I can use any of those without re-encoding the 
> video to different codecs.
> 
> So the basic goal is to stream DVD content with subtitles to the PS3 
> using fuppes (or another DLNA server) with no quality loss. Does anyone 
> have any suggestions about how this might be approached? Is it just 
> impossible?
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