JPEG-D-X
8/10/12-bit Extended JPEG Decoder
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The JPEG-D-X core from Alma Technologies 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.
IP 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
Notes :
| ¹ | Please refer to the Specifications tab for limitations with respect to the ISO/IEC 10918-1 JPEG standard. |
Symbol
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