JPEG-EX-F
Ultra-Fast Baseline and Extended JPEG Encoder

This JPEG compression IP core supports the Baseline Sequential DCT and the Extended Sequential DCT modes of the ISO/IEC 10918-1 standard. It implements a scalable, ultra-high-performance, ASIC or FPGA, hardware JPEG encoder that can compress high pixel rate video using significantly fewer silicon resources and less power than encoders for video compression standards such as HEVC/H,265, DSC, AVC/H.264, or JPEG200.   

The JPEG-EX-F encoder produces compressed JPEG images and the video payload for Motion-JPEG container formats. It accepts images with up to 12-bit color samples and up to four color components, in all widely-used color subsampling formats.  

Depending on its configuration, the encoder processes from two to 32 color samples per clock cycle, enabling it to compress UHD (4K/8K) video and/or very high frame video.  

Once programmed, the easy-to-use encoder requires no assistance from a host processor to compress an arbitrary number of frames. SoC integration is straightforward thanks to standardized AMBA® interfaces: AXI Streaming for pixel and compressed data, and a 32-bit APB slave interface for registers access. Users can optionally insert timestamps or other metadata in the compressed stream using a dedicated AXI Streaming interface. 

Customers with a short time to market priority can use CAST’s IP Integration Services to receive complete JPEG subsystems. These integrate the JPEG encoder 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 ASIC (synthesizable HDL) and FPGA (netlist) forms, and includes everything required for successful implementation. The ASIC version includes: 

  • Verilog RTL source code 
  • Sophisticated self-checking Testbench  
  • Software (C++) Bit-Accurate Model  
  • Sample simulation and synthesis scripts 
  • Comprehensive user documentation

The JPEG-EX-F core can be mapped to any ASIC and optimized to suit the particular project’s requirements. The following table provides sample implementation and performance data with the core configured to process 2 pixels per cycle (JPEG-EX-F/2) and under its default configuration. 

JPEG-EX-F/2 UHD/4k
60 fps, 4:2:2
UHD/4k
120 fps 4:2:0
UHD/4k
120 fps 4:2:2
Area
(Kgates)
Freq
(MHz)
TSMC 40g 145 500
TSMC 28hpm 120 800
TSMC 16 130 1,000


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-EX-F can be mapped to any AMD Device (provided sufficient silicon resources are available) and optimized to suit the particular project’s requirements. The following table provides sample implementation and performance data with the core configured to process 2 samples per cycle (JPEG-EX-F/2) and under its default configuration. 

Device Family LUTs DSP BRAMs Freq.
(MHz)
Artix-7 
(speed grade -1)
6,378 32 5 166
Kintex-7
(speed grade -1)
6,354 32 5 200
Spartan-7
(speed grade -2)
6,356 32 5 130
Kintex Ultrascale+
(speed grade -1)
6,221 32 4 250
Artix Ultrascale+
(speed grade -1)
6,223 32 4 240
Versal Prime
(speed grade -2)
6,372 32 4 250


Please note 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-EX-F can be mapped to any Intel FPGA Device (provided sufficient silicon resources are available) and optimized to suit the particular project’s requirements. The following table provides sample implementation and performance data with the core configured to process 2 samples per cycle (JPEG-EX-F/2) and under its default configuration. 

JPEG-EX-F/2 1080p60
4:4:4
UHD/4k
25fps 4:2:0
UHD/4k
30fps 4:2:2
Logic
Resources
DSPs Memory
Bits
Max10 16,310 LEs 16 77,432
CycloneV 6,060 ALMs 8 78,146
Arria10 6,204 ALMs 8 78,034


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-EX-F can be mapped to any Lattice Device (provided sufficient silicon resources are available) and optimized to suit the particular project’s requirements. The following table provides sample implementation and performance data with the core configured to process 2 samples per cycle (JPEG-EX-F/2) and under its default configuration. 

Family / Device Logic Resources Memory Resources Fmax
(MHz)
ECP5U
LAE5U-12F
21,962 LUT4s
20 MULT18
21 EBR 104
CrossLink-NX
LIFCL-40 (-8HP)
17,539 LUT4s
12 MULT18
22 EBR 142


Note that the 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-EX-F can be mapped to any Microsemi Device (provided sufficient silicon resources are available) and optimized to suit the particular project’s requirements. The following table provides sample implementation and performance data with the core configured to process 2 samples per cycle (JPEG-EX-F/2) and under its default configuration.

Family / Device Logic
Resources
Memory
Resources / Device
Freq
(MHz) / Device
MSamples/sec
IGLOO2 / M2GL150-STD 16,197 4LUTs 41 RAM64x18
6 RAM1Kx18
130 260
PolarFire / MPF500T-STD 14,802 4LUTs 50 uSRAM
16 LSRAM
150 300
RTG4 / RT4G150-STD 15,984 4LUTs 41 RAM64x18
6 RAM1Kx18
70 140
SmartFusion2 / M2S150-STD 16,197 4LUTs 41 RAM64x18
6 RAM1Kx18
130 260

Note 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.

Related Content

Features List

Scalable, ultra-high performance 4K/8k capable JPEG Encoder 

  • Requires significantly lower power and fewer silicon resources than any equally fast hardware video encoder for HEVC/H.265, AVC/H.264, DSC, or JPEG2000. 
  • Consumes much less power than any equivalent software, or software-hardware encoder. 

Standards Support 

  • ISO/IEC 10918-1 Baseline and Extended Sequential DCT modes 
  • Single-frame JPEG images and Motion JPEG payloads 
  • 8-bit and 12-bit per color samples 
  • Up to four color components; any image size up to 64k x 64k  
  • All scan configurations and all JPEG formats APP, COM, and restart markers  
  • Programmable Huffman Quantization tables 

Rate Control Options 

  • Image: Limits the size of each individual frame 
  • Video: Regulates bit rate over a number of input frames. 

Interfaces 

  • AXI Streaming pixel and compressed stream interfaces 
  • APB Control/Status interface 

Performance 

  • Synthesis-time configurable scalable throughput 
  • Up to 32 samples per clock cycle  
  • Supports UHD (4k/8K) video and/or ultra-high frame rates 

Ease of Integration 

  • Automatic program-once/encode-many operation 
  • Simple, dedicated timestamps interface  
  • Bit-accurate software model generates test vectors, expected results, and core programming values 
  • Optional Raster-to-Block Conversion with AXI or standard memory interface to the lines buffer 

Resources

See the JPEG entry at Wikipedia.

See the Motion JPEG entry at Wikipedia.

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This core implements encryption functions and as such it is subject to export control regulations. Export to your country may or may not require a special export license. Please contact CAST to determine what applies in your specific case.