[Live-devel] Converting PS- (VOBs) to TS files

[ECU Laboratories]

Hi Ross,

the situation is this: in my vob (as in the vast majority of  DVD vobs) 
the sound is provided
as AC3 tracks. They come on stream 0xBD as substreams starting with 
0x80. First audio
tack would be on stream 0xBD substream 0x80 the second one on stream 
0xBD  substream 0x81
etc. Same applies to subtitles.
Now that function (handleNewBuffer)  treats anything that is on 0xBD 
(PR1) as one stream
(ignoring that there are audio and subtitle subtracks) and accordingly 
inserts only one entry
into the PMT (with stream type = 0x6). The decoder does not seem to 
understand this and
expects separate streams with an own PID and stream type (0x81 in case 
of AC3).
Am I right with this?
Now I will try to give each substream an own PID and the corresponding 
stream type
(what is the proper stream type for DVB subtitles?) and hope the decoder 
(It's an Amino
110h) will see that.

Regards,
Helmut


Ross Finlayson wrote:

>
>> im trying to convert mpeg ps files into mpeg ts files using the tool
>> "testMPEG1or2ProgramToTransportStream" from the live library.
>> After conversion I can stream the resulting .ts file but there is no 
>> sound...
>>
>> The vob file contains 3 audio- and a lot of subtitle tracks.
>> I need to have all that audio- and subtitletracks in the resulting ts 
>> file.
>> There should also be proper entries in the PMT so the receiver can
>> see that there are different audio and subtitletracks.
>>
>> Has anyone else tried this and can maybe tell how/where I have
>> to start fondling around in the code to achieve that?
>
>
> Helmut,
>
> I would look at the code in 
> "MPEG2TransportStreamMultiplexor::handleNewBuffer()" that sets the 
> stream type for each incoming PES packet, based on its 'stream_id'.
>
> Your audio tracks may be using unusual 'stream_id' values.
>
>
>     Ross Finlayson
>     Live Networks, Inc. (LIVE555.COM)
>     <http://www.live555.com/>
>
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