On Thu, December 4, 2008 12:16 am, Juan Pablo Soto Barrera wrote:
> Dear Freevo's friends,
> attached you can find a funny piece of Python code developed by me for
> Freevo; trying to pay off a small part of my debt with Freevo. Indeed, my
> children kill me if our PC-Home had not got Freevo ;-)
>
> For impatients, type "python dvb3l.py". For reckless guys, unpack the
> tarball and activate the plugin in your local_conf.py:
> plugin.activate('dvb.dvb3l')
>
> dvb3l.py allows access to the DVB v3 kernel device driver for Linux: the
> present DVB API for Linux (although S2API is coming ... see linuxtv.org).
> Supossedly, Windows' guys could rewrite it for analogous operation. The
> list DVB_HW defines entries to be sequentially tuned during a specified
> time (DVB_DWELL_TIME).
>
> Special entries in the list DVB_HW trigger the scanner capability. Any
> entry without the frequency field (for instance: [0,0,0]) provokes a
> scanner looks for valid DVB frequencies which become as they would be
> manually written in the list DVB_HW. A scanner entry tries to tune at
> frequencies according to DVB_SCANNER_RES_FREQ resolution.
>
> The real work for DVB demux is carry out by dvb_ts.py, which works at the
> lowest level: DVB packets. Code is compliant with two normative levels:
> H222.0 (as knwown as ISO.13818-1) and DVB (see ETSI docs). Present code is
> focused on data available within the DVB stream, known as PSI or SI; the
> most significant and known data is the real-time EPG of all DVB channels.
> Therefore, this middleware piece of code could be used to extract
> continuously EPG data. Other future developments could be based on it:
> ATSC for American guys, interactive TV (MPH, TV Any-Time), ... even to
> grab directly video, audio or other stream data (subtitles, ...)
>
> Although I have long-term background for several programming languages,
> this is my first Python experience; besides, code has been written from
> scratch. This means heavy testing would be advisable, though I have tested
> it during days after releasing this first alpha.
>
> A good improvement would be to add cache support for data gathered by the
> scanner and demuxer. A pending integration task is a method to allow to
> live with other resources (mplayer, xine, ... or Freevo code) tunning
> the DVB card.
>
> Friends, ... try it out, enjoy and consider to incorporate this code into
> Freevo. I will try to continue supporting this contribution within my
> personal limitations.
>
> Regards, JP
> Hi JP,
Looks interesting, you might also want to look at dvbstreamer
(www.dvbstreamer.org) which I wrote and is currently being used for freevo
1.x livepause plugin and dvbstreamer record plugin. I am aways looking for
help developing and testing this and the freevo plugins.
I can see you've added some tables for TVAnytime information which is
something that would be nice to integrate further as it would add proper
series link.
Cheers
Adam
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