Dropping audio untill video key frame

[Manoj]

Hi All,

I need a help in resolving issue in live stream decoding (udpsrc), where i
need to avoid audio rendering until video key frame gets detected for valid
video decode to start.

Scenario is as per below diagram,
So is it possible to block 'sink' pad of decoder1 in below pipeline? Keeping
all rest of the data flowing in pipeline.
Ultimately discarding data going to decoder1, utill decoder2 receives valid
data.

 .---------.      .---------.                   .----------.
 | livesrc |      | demuxer |     .------.    | decoder1 |
 |        src -> sink      src1 ->|queue1|-> sink       src 
 '---------'     |           |        '------'    '----------' X
                   |            |                   .----------.
                   |            |     .------.    | decoder2 |
                   |        src2 ->|queue2|-> sink       src-> sink
                   '---------'      '------'     '----------' 

Thanks a lot in advance,




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