Streaming video and subtitles

[jared1999]

Does anyone know if it possible to use subtitles with RTSP/RTP streaming? I've been using Apple's Darwin Streaming Server to stream MPEG-4 files with either H263/MP3 or H264/AAC content in addition to TTXT subtitle tracks. The subtitle tracks are not received by VLC on the the client side, but they play fine if opened directly in the player. I also have been unable to find information about a RTP payload format for TTXT, so is it even possible yet?

[jared1999]

After some more research and digging through source code it appears a RTP payload format for Timed Text (TTXT) was defined by IETF as of June 13 2005. Unfortunately DSS does not handle this yet, so it appears I'll have to use multiple streams with hardsubs for now :(