MPEG-4 SP Hardware Decoder Product Specification

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Overview:

IndigoVision’s Mainstream™ MPEG-4 silicon-verified video decoder IP adds high-performance MPEG-4 video decoding to existing systems. It is particularly suited to adding playback capabilities to cameras, set-top boxes, MP3 players and other portable, battery-powered devices, such as mobile phones and PDAs.

The Mainstream™ MPEG-4 video decoder is fully compliant with the MPEG-4 Simple Profile standard. The Mainstream™ IP also contains support for some Advanced Simple Profile (ASP) tools for higher interoperability and can decode arbitrary resolutions up to full ASP Level 5 (D1/DVD) resolutions, all at full frame rate.

Based on the single clocked, synchronous, fully hardware pipelined Mainstream™ architecture the decoder requires minimal intervention from a host processor and can be controlled by a low-cost, low-power processor such as in an ARM or MIPS based SOC. The decoder is provided as a reduced footprint standalone module for decode-only applications, or where separate encoders and decoders are the preferred solution.

Features:

• MPEG-4 Video Decoder

• Fully compliant ISO 14496-2 MPEG-4 Simple Profile L0, L1, L2, L3

• Compliant Advanced Simple Profile tools

• Advanced Simple Profile Levels L0 through L5

• Baseline ITU-T H.263 compliant

• Arbitrary resolutions up to 720x576/480 pixels at 25/30fps

• Decodes bitstreams up to 12Mbps

• Multi-decode for multi-stream rendering (dependent on clock speed)

• Error resilience including slice resynchronization

• Decodes completely from Video Object Plane (VOP) entry point

Benefits:

• Easy Integration

• Negligible processing from host

• Low power operation

• <5mW for CIF decode at 30fps

• Software bit-accurate decoder model

• Interfaces available

• Simple DMA based

• AMBA

• Requires only a single low-cost external SDRAM device

• Support technology available

• Video display generator (CCIR-656 video output)

• Advanced Decompression

• I-VOP, and P-VOP frames

• AC/DC prediction

• Method 1 and 2 MPEG-4 quantisation

• Video packets with optional HEC

• Unrestricted motion vector support

• Four motion vector prediction

• Data partitioning and RVLC (software-only)

• Flexibility

• Frame-based control

• Programmable Method 1 quantisation tables

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