On 4/22/07, Dirk Meyer <[EMAIL PROTECTED]> wrote:
> This is a proposal for the interface of kaa.record2. This is not
> implemented yet, but if we agree to make it this way I will do
> it. This doc does not cover how this is done in the internals of
> kaa.record2.
> Next we want some parts from that channel. E.g. audio and video in one stream
> and
> teletext in another.
> | video = device.get_stream(channel, 'audio,video')
> | text = device.get_stream(channel, 'teletext')
Fine, but for dvb programs having multiple audio streams it should be
possible to select which specific stream to return:
audio_en = device.get_stream (channe, "audio-en")
> We now have two 'Stream' objects. What should we do? Let's say we want
> to store the video to a file.
>
> | video.add_output('filewriter', filename='foo')
[snip]
> Or we add an encoder if we want:
> | enc = video.add_output('encoder', video='h.264', audio='ac3',
> container='mkv')
> | enc.set_property('vbitrate' 2000)
[snip]
> We can add as many outputs as we like. The add_output function returns
> either a 'Stream' or a 'Sink' object (names could be different). The
> 'Sink' objects has an unlink() function to remove later. If a 'Stream'
> has no outputs and is not referenced by python anymore, it will unlink
> itself.
Also, maybe Stream objects should support multiple outputs, for
example if we want to record a show while watching it:
sink = video.add_output ("xv")
enc = video.add_output ("encoder", video="h264", audio="ac3", container="mkv")
fs = enc.add_output ("filewriter", filename="foo.mkv")
my 2 cents,
Alessandro
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