JPEG-D-S
Baseline JPEG Decoder

This JPEG decompression IP core supports the Baseline Sequential DCT mode of the ISO/IEC 10918-1 standard. It implements a high-performance hardware JPEG decoder that is very small in silicon area.  

The JPEG-D-S Decoder decompresses JPEG images and the video payload for Motion-JPEG container formats. It accepts compressed streams of images with 8-bit color samples and up to four color components, in all widely-used color subsampling formats.  

The compact decoder core processes one color sample per clock cycle, enabling it to process multiple Full-HD channels even in low-cost FPGAs.  

Once programmed, the easy-to-use decoder operates on a standalone basis, parsing marker segments and decompressing coded data with no assistance from a host processor. The decoder reports the image format (i.e., resolution, subsampling format, and color sample-depth) to the system, so that the decoded images are properly further processed and/or displayed. 

SoC integration is straightforward thanks to standardized AMBA® interfaces: AXI Streaming for pixel and decompressed data, and a 32-bit APB slave interface for registers access.  

Customers with a short time to market requirements can use CAST’s IP Integration Services to receive complete JPEG subsystems. These integrate the JPEG decoder with video interface controllers, Hardware UDPIP or Transport Stream networking stacks, or other IP cores available from CAST.  

The core is designed with industry best practices, and its reliability and low risk have been proven through both rigorous verification and customer production. Its deliverables include a complete verification environment and a bit-accurate software model.

The core has been verified through extensive synthesis, place and route and simulation runs. It has also been embedded in several products and is proven in both ASIC and FPGA technologies. 

Support 

The core as delivered is warranted against defects for ninety days from purchase. Thirty days of phone and email technical support are included, starting with the first interaction. Additional maintenance and support options are available. 

Deliverables 

The core is available in FPGA netlist form and includes everything required for successful implementation. Its deliverable package includes: 

  • Netlist 
  • Sophisticated self-checking Testbench  
  • Software (C++) Bit-Accurate Model  
  • Sample simulation scripts 
  • Comprehensive user documentation 

The JPEG-D-S can be mapped to any Intel FPGA Device (provided sufficient silicon resources are available) and optimized to specific project requirements. The following table provides sample implementation and performance data for the default configuration of the core.

  720p60 
4:2:0
1080p30 
4:2:2
1080p60 
4:2:0
Logic Resources MULTs/DSPs Memory Bits

Max10

 

 

 

9,800 LEs

10

31,552

CycloneV

 

 

 

4,000 ALMs

5

31,706

Arria10

 

 

 

4,000 ALMs

5

31,706

StratixV

 

 

 

4,000 ALMs

5

31,706

Note that the list of video formats is not exhaustive, and that these sample implementation figures do not represent the highest speed or smallest area possible for the core. Please contact CAST to get characterization data for your target configuration and technology.

The JPEG-D-S core can be mapped to any Microsemi Device (provided sufficient silicon resources are available) and optimized to specific project requirements. The following table provides sample implementation and performance data for the default configuration of the core.

Family
Device
Logic
Resources
Memory
Resources
Freq.
MHz
MSamples/s
Igloo2
M2GL150-STD
10,287 4LUT 12 RAM64x18
1 RAM1K18
110 110
PolarFire
MPF500T-STD
10,054 4LUT 19 uSRAM
1 LSRAM
170 170
RTG4
RT4G150 -STD
10,099 4LUT 12 RAM64x18
1 RAM1K18
70 70
SmartFusion2
M2S150-STD
10,287 4LUT 12 RAM64x18
1 RAM1K18
110 110

Note that the list of video formats is not exhaustive and that these sample implementation figures do not represent the highest speed or smallest area possible for the core. Please contact CAST to discuss silicon resource utilization and performance for your target technology.

The JPEG-D-S can be mapped to any Xilinx Device (provided sufficient silicon resources are available) and optimized to specific project requirements. The following table provides sample implementation and performance data for the default configuration of the core.  

 

1080p30
4:4:4

1080p60
4:2:0

1080p60
4:2:2

LUTs DSPs BRAMs

Artix-7 (-2)

      6,800 5 2 RAMB16

Kintex7 (-2)

      6,100 5 2 RAMB16

Kintex7-US (-1)

      5,900 5 2 RAMB16


Note that the list of video formats is not exhaustive, and that these sample implementation figures do not represent the highest speed or smallest area possible for the core. Please contact CAST to get characterization data for your target configuration and technology. 

Related Content

Weight in Family
10.00

Features List

Area-efficient, high-performance Baseline JPEG decoder

Standards Support 

  • ISO/IEC 10918-1 Standard Baseline Decoder  
  • Single-frame JPEG images and Motion JPEG payloads 
  • Up to four color components 
  • 8-bit color samples 
  • All widely used color subsampling formats, and any image size up to 64k x 64k  
  • All scan configurations and all JPEG formats  
  • All marker segments expect DNL 
  • Up to four Huffman Tables  
  • Up to four 8-bit or 16-bit Quantization tables  

Interfaces 

  • AXI Streaming I/O data interfaces 
  • APB Control/Status interface 
  • Optional AHB wrapper with DMA capabilities 

Performance and Size 

  • One decoded sample per clock cycle 
  • Small silicon footprint (~65k Gates) 

Ease of Integration 

  • Requires no programming or control from host  
  • Reports image format 
  • Detects and reports marker syntax errors 
  • Delivered with bit-accurate software model  
  • Optional Block-to-Raster Conversion with AXI or standard memory interface towards the lines buffer 

Format 

  • Available as a targeted FPGA netlist

Resources

See the JPEG entry at Wikipedia.

See the Motion JPEG entry at Wikipedia.

Let's talk about your project and our IP solutions

Request Info