Date: Wed, 30 Dec 2009 17:27:25 -0800 From: John-Mark Gurney <jmg@funkthat.com> To: Max Laier <max@love2party.net> Cc: freebsd-multimedia@freebsd.org Subject: Re: WIP: DVB-C support Message-ID: <20091231012725.GA29194@funkthat.com> In-Reply-To: <200912300341.51287.max@love2party.net> References: <200912300341.51287.max@love2party.net>
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Max Laier wrote this message on Wed, Dec 30, 2009 at 03:41 +0100: > I'm looking for a good MPEG-TS de-multiplexer with PSI support. If you know > of such a thing, let me know. It's not great, but I have my pydcap tools in FreeBSD's p4 tree: http://p4db.freebsd.org/fileSearch.cgi?FSPC=%2F%2Fdepot%2Fuser%2Fjmg%2Fbktrau%2Fpython%2F...&ignore=GO! It has a DeMuxer class that you subclass, and you get notifications of when the PSI changes, and when data arrives... I use it for my custom PVR I wrote, and the sub-class I use is: class TunerDemuxer(pydcap.demux.DeMuxer, dict): def __init__(self): pydcap.demux.DeMuxer.__init__(self) dict.__init__(self) def setupchange(self): for i in self: self.recordstream(i, self[i]) def data(self, program, data): for i in program: i.write(data) write = pydcap.demux.DeMuxer.demuxdata dm = TunerDemuxer() dm[(5, 1)] = [ open("kcbs.ts", "a+b"), ] while True: dm.write(readdata()) You deliver data to demux via the write method, and TunerDemuxer will then call the write method on each object in the list.. This lets me also record the intro/outro to two different files w/o much additional work (append the new show to the list, and then once the old show is done, remove it)... The core part of the demuxer is written in C so the performance is acceptable... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."
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