Demodulation video in NTSC Brazil


I am engineering student and I am carrying through my final work of
undergraduation. The aim of this work is to try to measure how much of
delay there is in the NTSC video decoding and for this I need an
application of NTSC running in gnuradio. I would like to know if
somebody knows some application that can help me.

Cleber Cezar

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