[Red5] flash media encoder 3.0

Naicu Octavian naicuoctavian at gmail.com
Tue Feb 10 07:18:36 PST 2009


>You have to subscribe to each individually livestream_100 or
livestream_500, its 1-3 multiple streams at once requiring alot of upload
bandwidth !  Just like you said, I'd rather upload the maximum rate possible
, and then let the server degrade it on the fly somehow !


FME 3.0 can publish multiple streams to the FMS application. This will
require a good connection between the computer with FME and the FMS server.
You can upgrade this connection as needed, as opposed to upgrading the
connections of your viewers.

The viewer only subscribes the the appropriate stream, it does not subscribe
too all streams at once!

I find this feature very useful actually. Downsampling on the server side
would be very costly in terms of CPU and DELAY/LATENCY.





On Mon, Feb 9, 2009 at 6:03 PM, Daniel Rossi <electroteque at gmail.com> wrote:

>
> On 10/02/2009, at 2:42 AM, Walter Tak wrote:
>
>  I'd rather see a downmix on the server of just one incoming high-quality
>> stream.
>>
>> If you'd need to push two streams (say 100kbit and 50kbit) to Red5 you
>> need more bandwidth than nescessary.
>>
>> Once we have H.264 working in Red5 we could use Xuggle to decode incoming
>> H.264 live streams from FME 3 , down-code them to
>> one or more lower bitrates and publish those streams.
>>
>> An even better implementation would be that the down-coding or downmixing
>> only takes place when there is actual demand for a lower bitrate stream.
>> Think of "down-mix on demand" where you can choose from a set of available
>> bitrates.
>>
>> That might require a substantial amount of cpu-power (recoding realtime
>> isn't cheap) but on the other hand ;
>> when you're using FME you probably don't have hundreds of incoming streams
>> ; your app will probably look like a <few publishers>  to <many subscribers>
>> setup.
>>
>> 'On topic' ; if FME publishes two streams, can't you connect to each of
>> them, right now ?
>>
>>
> You have to subscribe to each individually livestream_100 or
> livestream_500, its 1-3 multiple streams at once requiring alot of upload
> bandwidth !  Just like you said, I'd rather upload the maximum rate possible
> , and then let the server degrade it on the fly somehow !
>
>
>
>
>
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> Red5 at osflash.org
> http://osflash.org/mailman/listinfo/red5_osflash.org
>
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