Jan Schmidt 40de7e5b98 openh264: Use DecodeFrameNoDelay() API instead of DecodeFrame2
Replace legacy usage of DecodeFrame2 API in favour of the
recommended DecodeFrameNoDelay()

This fixes problems with DecodeFrame2() not (currently) returning
all frames in main/high streams with B-frames, and reduces latency -
previously openh264 would not return a decoded frame until the next
call to DecodeFrame2(). DecodeFrameNoDelay() returns them immediately.
2019-01-30 14:53:02 +11:00
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