Ross,
Sorry by being late in reply but I was pretty busy.
Thanks for your reply, it sounds very very good and I'm starting to test it.
About stream N minutes of a file, I dont want to "cut" the original
video, I think that I can modify the headers or something to make the
client think that the video duration is N and not the total.
Sorry about the "trick play" confusion, I miss understood the concept.
PS: I need to stream a MPEG file, not a transport stream file, I just
say a TS file because the example, it's the same to stream a TS file or
a MPG? I mean, I should say what you said for any of those formats?
Thanks in advance,
Jonathan
On 12/01/2010 11:23 AM, Ross Finlayson wrote:
I checked the code mentioned, and it works as expected.
But now I have a question... is possible to do the same (stream only N
mins of file, or make an infinite loop) from the server side?
Well, if you want to only stream N minutes of a file - without the
client asking you to do this - then the best/right way to do this would
simply be to create a new file in advance, by editing the original file,
and then asking your clients to stream from the new file instead.
As for streaming a single file over and over again, in an infinite loop
(again, without the client asking you to do this): You could do this,
but you'd need to write a new "FramedFilter" subclass that sits in front
of your "ByteStreamFileSource" class (and presents the illusion of
delivering a single, unbroken stream to the downstream object (a
"MPEG2TransportStreamFramer")). You'd also need to write a new
"OnDemandServerMediaSubsession" class (replacing the existing
"MPEG2TransportFileServerMediaSubsession" class) that uses your new
"FramedFilter" subclass.
Also, because you're streaming a Transport Stream file, you'd need to
make sure that the 'discontinuity flag' is set at the start of the file,
so that PCR values (and thus presentation times) don't get messed up
when the server loops back to the start of the file.
None of this really has anything to do with 'trick play' (in particular,
you won't be creating index files at all), because - from the client's
point of view - you're not doing anything other than playing a simple
stream.
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