gst-omx: should allocate the same number of buffers on consecutive ports when using dynamic buffer mode
Submitted by Guillaume Desmottes
On the Zynq, when using dynamic mode (including dma import), let's say we have "A ! B" with A's output port requiring N buffers and B's input port requiring M buffers. To prevent starvation, as buffers from A will be kept by B, we should ensure that both ports have N+M buffers allocated.