hi,

   how many h264 encoder filters can use to encode 1920*1080 videos?

   I use dshow like below

  video capture(yuy2) ->inftee->h264 encode->sample grabber.

                                          |

                             h264 encode

                                         |

                            sample grabber

like this , when I connect two h264 encoder filter, it works well

but when I connect 3,   the grabber will lost many frames

example: I set frame rate = 25.

when I get 100 frames  use 5s.

but it should be 4s,

the CPU used = 36%

I find EncodeFrameAsync return busy many.

Does anyone tell me, what problem with it or how to inprove it?

Thanks