> I'm trying to transmit an MP3 file over Transport Stream
Note that a "Transport Stream" is really just a container (i.e. file) format,
not a network protocol. So it doesn't really make sense to talk about
streaming anything over a "Transport Stream". You can, however, convert, or
'pack' some data type (including MP3 audio) into a Transport Stream file.
> I studied the 2 test programs testMP3Streamer and testMPEG2TransportStreamer,
> but I didn't understand how it can work.
Those applications are used to stream MP3 and Transport Stream files
(respectively) using the standard RTP protocol.
If you want to convert (not stream) a MP3 file into a Transport Stream file,
then you should be able to do so - using our software - by feeding a
"MP3FileSource" object into a Transport Stream, by doing something like:
FramedSource* audioSource = MP3FileSource(*env, mp3FileName);
MPEG2TransportStreamFromESSource* tsFrames =
MPEG2TransportStreamFromESSource::createNew(*env);
tsFrames->addNewAudioSource(audioSource, mpegVersion);
// Where "mpegVersion" is either 1 or 2, depending on whether
your MP3 audio is MPEG-1 or MPEG-2
MediaSink* outputSink = FileSink::createNew(*env, outputFileName);
outputSink->startPlaying(*tsFrames, afterPlaying, NULL);
(See the "testH264VideoToTransportStream" code for an illustration of how we
can convert a H.264 video file into a Transport Stream.)
However, if you just want to stream a MP3 file over the network, then by far
the best way to do this is to stream it via RTP - e.g., using our
"testMP3Streamer" demo application, without using Transport Streams at all.
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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