21.02.12 01:04, Dan Dennedy написав(ла):
> 2012/2/20 Maksym Veremeyenko<ve...@m1stereo.tv>:
>> Hi,
>>
>> because of decklink board has no native EE mode for monitoring signal
>> passthrow it only chance to start recording from proper position is pausing
>> producer. attached patch could solve a problem then you need to start
>> /recording/ by unpausing producer in a chain
>>
>>     producer_decklink  -->  consumer_avformat.c
>
> This is harmless enough that I applied it, but can you elaborate more
> about the approach?

decklink board has no EE mode, i.e. you can't seen SDI signal pass throw 
until you setup decklink into the recoding mode. So if you need to start 
recording from a proper moment you see on decklink output, you need to 
unpause it. but it not so simple because if you set speed 0.0 to 
producer, it still send a frames to avformat consumer (moreover it exit 
encoding thread if *terminate_on_pause* not disabled or just mute and 
encode incoming frames), so if you have a /black box/ with SDI inputs 
and outputs and IP control - that is an only method...

> If you are connected to the avformat consumer for
> file capture, how are you providing preview?
passthrow SDI output

> I would think you would
> have it connected to another consumer, like SDL, during preview, and
> then connect it to the avformat consumer for capture with no pausing
> the producer in between. Unless perhaps you are using the multi
> consumer.
thanks to idea...
btw, are there any samples for this functionality? it is like *tie* ?

-- 
________________________________________
Maksym Veremeyenko

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