8/10/12-bit Extended JPEG Decoder

Overview

The JPEG-D-X core is a standalone and high-performance JPEG decoder for still image and video compression applications. Compliance¹ with the Baseline and the Extended Sequential DCT modes of the ISO/IEC 10918-1 JPEG standard makes this core suitable for interoperable systems and devices. The JPEG-E-X is available for ASIC or AMD-Xilinx, Efinix, Intel, Lattice and Microchip FPGA and SoC based designs.

In addition to decoding standard compliant Baseline and Extended JPEG streams, the core is also capable of decompressing the video payload of many (de facto) standard motion JPEG container formats.

The core is designed with simple, fully controllable and FIFO like, streaming input and output interfaces. Being carefully designed and rigorously verified, the JPEG-D-X is a reliable and easy-to-use and integrate IP.

Key Features

Complete, Compliant and Standalone Operation
- ISO/IEC 10918-1 compliant 8-bit Baseline and 12-bit Extended JPEG decoder
- Up to 64K x 64K image resolution
- Up to four 8-bit or 16-bit stream programmable Quantization Tables
- Up to four stream programmable Huffman Tables (two DC, two AC)
- Stream programmable Restart Markers
- Single- and multi-scan support
- All three compressed data formats supported
  - Interchange format
  - Abbreviated format for compressed image data
  - Abbreviated format for table-specification data
- Motion JPEG payload decoding
- CPU-less, complete and standalone operation
Limitations with Respect to the ISO/IEC 10918-1 JPEG Standard
- Up to 4 image components
- Sampling factors 1, 2 and 4
- Up to 4 Huffman Tables
- The DNL marker is not supported
- Decoding of corrupted JPEG streams is not supported
Ease of Integration
- Automatic self-programming by JPEG markers parsing
- JPEG marker errors catching features
- Simple, microcontroller like, programming interface
- High-speed, flow controllable, streaming I/O data interfaces
  - Simple and FIFO like
  - Avalon-ST compliant (ready latency 0)
  - AXI4-Stream compliant
Trouble-Free Technology Map and Implementation
- Fully portable, self-contained RTL source code
- Strictly positive edge triggered design
- D-type only Flip-Flops
- Fully synchronous operation
- No special timing constraints required
  - No false paths
  - No multi-cycle paths

Block Diagram

Deliverables

Clear-text RTL sources for ASIC designs, or pre-synthesized and verified Netlist for FPGA and SoC devices
Release Notes, Design Specification and Integration Manual documents
Bit Accurate Model (BAM) and test vector generation binaries, including sample scripts
Pre-compiled RTL simulation model and gate-level simulation netlist for the FPGA Netlist license
Self-checking testbench environment sources, including sample BAM generated test cases
Simulation and sample Synthesis (for ASICs) or Place & Route (for FPGAs) scripts

Technical Specifications

Maturity

Silicon Proven

Availability

NOW

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