Full duplex single clip video codec

摘要: A single-chip video compression/decompression (video codec) chip is connected to receive a input from NTSC-compatible or PAL-compatible camera and transmit channel. Video information the other source compressed by codec transmitted out in form on Concurrently, channel, decompressed output monitor device, e.g., television set. Only separate single module of dynamic random access memory (DRAM) needed provide storage for incoming outgoing data, bit streams reconstructed pictures both compression decompression procedures. The spatial decorrelation intraframe information, temporal interframe information. communication channel rate further reduced quantization variable length coding. Intraframe coding uses redundancy within frame. processing done blocks eight-by-eight pixels. Both luminance chrominance pixel are transform coded discrete cosine that changes pixels domain frequency domain.