STRM102

MPEG Video Compliance Bitstreams
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Features & Benefits

Bitstream Features
  • Standards
    • MPEG-1
    • MPEG-2 (Main Profile/Main Level)
  • Formats
    • CCIR-601 @ 4.5 Mb/s
    • CIF/SIF @ 1.2 Mb/s
  • Syntactically and Semantically Compliant
  • Verified with MPEG Simulation Software Group's Decoder
Test Features
  • Stresses Decoders Over the Entire Range of Key MPEG Parameters
  • Rapidly Isolates Problems to a Particular Parameter
  • Provides Simple, Highly Visible Indication of Pass/Fail
Benefits
  • Full Coverage of VLCs
  • Rapidly Isolates Problems
  • Real-time Testing - No Extensive Computer Analysis Required

Applications

  • System Integration Verification Tool
  • Interoperability Testing
  • Functional Verification of:
    • Set-top Converters
    • Decoder Boards
    • Decoder ICs
    • Software Decoder Models
The Sarnoff Advantage
  • A Key Contributor to the MPEG Standardization Process
  • Designed and Built MPEG Systems, Including DIRECTV, AD-HDTV and Digital Grand Alliance HDTV

Independent Certification of MPEG Interoperability

The market for MPEG-based products and services is here and is expanding rapidly. Timely product introduction, compliance with standards and interoperability provide a competitive advantage in today's marketplace. Sarnoff's compliance bitstreams are the key to reducing your time to market and establishing your product. They provide a rapid, independent certification of MPEG video decoders and are thorough and easy to use.

Sarnoff's Video Compliance Bitstreams are used to certify DSS satellite receivers, the fastest selling consumer electronics product of all time.

Example showing visual confirmation of pass/fail for Quant Matrix test:
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Title Screen indicates test being performed.

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VERIFY screen shows successful completion of exhaustive test.

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Corrupted VERIFY screen clearly shows failure of decoder under test.

Characteristics

STRM Series Tests

Test Name

Standard(s)*1

SIF

CIF

CCIR601

CCIR601

352 x 240

352 x 288

720 x 480

720 x 576

525 @ 29.97 Hz

625 @ 25 Hz

525 @ 29.97 Hz

625 @ 25 Hz

Restricted Parameter Test

MPEG-1

*

*

*

*

Motion Vector Range

MPEG-1/MPEG-2

*

*

*

*

DC Differential Range

MPEG-1

*

*

*

*

Macroblock Pattern Range

MPEG-1

*

*

*

*

Dynamic Picture Size

MPEG-1

*2

*2

*2

*2

Macroblock Type Range

MPEG-1

*

*

*

*

AC Run/Level Range

MPEG-1/MPEG-2

*

*

*

*

Macroblock Address Range

MPEG-1

*

*

*

*

Downloadable Quant Matrices

MPEG-1

*

*

*

*

Dynamic GOP Structure

MPEG-1

*

*

*

*

Dynamic Slice Size

MPEG-1

*

*

*

*

Macroblock Stuffing

MPEG-1

*

*

*

*

Zero Stuffing

MPEG-1

*

*

*

*

3:2 Pulldown Insertion

MPEG-2

N/A

N/A

*

N/A

Postprocessing Functions

MPEG-1

*

*

*

*

Bit Rates

MPEG-1/MPEG-2

*3

*3

*3

*3

VBV Buffer Size

MPEG-2

*

*

*

*

MPEG-1/MPEG-2 Sequences

MPEG-1/MPEG-2

*

*

*

*

Alternate AC Scan Pattern

MPEG-2

*

*

*

*

Field/Frame Coding Modes

MPEG-2

N/A

N/A

*

*

Field/Frame Prediction Modes

MPEG-2

N/A

N/A

*

*

Linear Quant Scale

MPEG-2

*

*

*

*

Non-linear Quant Scale

MPEG-2

*

*

*

*

Pan and Scan

MPEG-2

N/A

N/A

*

*

*1 MPEG-1 bitstreams can partially or fully test respective features in MPEG-2 decoders.

*2 Various image sizes are supported.

*3 Various bit rates are supported.

N/A Not Applicable/Not Available.

Typical Test Set-up -

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Last Modified: 2002-09-01 05:00:00
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