Context Adaptive Variable Length Decoding Optimization and Implementation on Tms320c64 Dsp for H.264/Avc

Context adaptive variable length decoding optimization and implementation on tms320c64 dsp for h.264/avc

Context Adaptive Variable Length Decoding (CAVLD) module takes the lion chair of the H.264/AVC video decoder time due to its complexity. In order to ameliorate decoding speed, a new CAVLD algorithm and an efficient internal memory design were implemented on Digital Signal Processor (DSP). The proposed CAVLD algorithm, Zero Length Prefix (ZLP), was designed to optimize the first syntax element: ...

SAD implementation and optimization for H.264/AVC encoder on TMS320C64 DSP

Motion estimation in video coding standards, such as H.264/AVC, is considered to be the most timeconsuming encoding module. Motion estimation is generally performed on a 16x16 block, although in H.264/AVC, 7 different block sizes (16x16, 16x8, 8x16, 8x8, 8x4, 4x8 and 4x4) are allowed. The aim of this paper is to optimise the implementation of the motion estimation algorithm on the Texas Instrum...

Implementation of Context Adaptive Variable Length Coder for H.264 Video Encoder

This paper proposes the implementation of context adaptive variable length coder for H.264 video encoder. The implementation is capable of bringing about compression of video sequences as per user specification and is capable of processing high resolution pictures of sizes of up to 1024 x 768 pixels, encoding at a real time frame rate of 25 fps. The variable length coder has been realized using...

On Variable Length Codes for Iterative Source/Channel Decoding

We focus on a trellis-based decoding technique for variable length codes (VLCs) which does not require any additional side information besides the number of bits in the coded sequence. A bit-level soft-in/soft-out decoder based on this trellis is used as an outer component decoder in an iterative decoding scheme for a serially concatenated source/channel coding system. In contrast to previous a...

White Paper: H.264 / AVC Context Adaptive Variable Length Coding