VW2010 MPEG 1/2/4 A/V Codec

The VW2010 is a real-time MPEG-1, -2

and -4 audio/video/system CODEC chip

(simultaneous compression/ decompression,

or encode/decode) that fully complies

with the MPEG and H.263 standards. The

VW2010 accepts uncompressed ITUR.

BT-656 video and I2S audio, compresses

the video into MPEG-1, -2, -4 or H.263

format, compresses the audio into MPEG-1

Layer I, Layer II, MP3, AAC*or AC-3 audio

format, and outputs them as transport

stream for network applications or program

streams for storage applications. In addition,

the VW2010 accepts an MPEG bitstream

input, and outputs ITU-R.BT-656

video. It also accepts an MPEG-1 Layer I, II

or III, AAC1 or AC-3 audio bitstream

input, and outputs audio through I2S, S/PDIF

or IEC-61937. The VW2010 also supports

the encoding and decoding of G.711,

G.723.11, G.726 and G.729 audio.

• MPEG-1

• MPEG-2 MP@ML

• MPEG-4 Simple Profile @ L1, L2 and L3,

with extensions to full D1 and interlaced

video

• H.263 baseline

• Adaptive field/frame motion estimation and

DCT type

• 4:2:2 to 4:2:0 conversion

• Scene change detection

• Inverse telecine (3:2 pulldown)

• Motion estimation search range +/- 127 pels

horizontal and +/- 63 pels vertical, with halfpel

accuracy

• 8-tap horiz. filter and 4-tap vert. filter

• Extraction of VBI data

• Private and user data insertions from VBI or

host/PCI port

• Adjustable controls

• Fixed frame rates of 29.97 (NTSC) or 25

(PAL) frames per second, or variable frame

rates in low delay mode

• Constant or variable bit-rate from 64 Kb/s

to 15 Mb/s

• Horizontal sizes of 176, 180, 320, 352, 360,

480, 528, 544, 640, 704 and 720 pixels

• Vertical sizes of 120, 144, 240, 288, 480,

512, 576 lines (NTSC) or 144, 288, 576,

608 lines (PAL)

• Programmable GOP structure and length: I,

IP, IBP and IBBP

• Programmable low delay mode

• MPEG-1 Layer I, and II

• MPEG-1 Layer III (MP3)

• 2-channel consumer grade AAC1

• 2-channel consumer grade AC-3

• G.711, G.732.11, G.726, G.729

• Sampling frequencies: 8, 16, 22.05, 24, 32,

44.1 and 48 KHz.

• Bits per channel: 16, 20, 24, 32

Advanced Features

• Multi-regions Motion Activated Recording

• Quantization control with Qmin, Qmax

• Extended resolution coding for VBI

Multiplexing

Input

• User data or VBI data insertion

Output

• MPEG-1 System Stream

• MPEG-2 PS or TS

• MPEG-4 encapsulated in MPEG-2 TS, PS

• PES and ES output

Video Decoding

• MPEG-1

• MPEG-2 MP@ML

• MPEG-4 Simple Profile @ L1, L2 and L3,

with extensions to full D1 and interlaced

video

• H.263 baseline

• 7-tap horiz. filter and 2-tap vert. filter

• Letterbox conversion

• 3:2 pulldown

• Closed Caption and Teletext

Audio Decoding

• MPEG-1 Layer I, and II

• MPEG-1 Layer III (MP3)

• 2-channel consumer grade AAC

• 2-channel consumer grade AC-3

• G.711, G.723.11, G.726, G.729

• Sampling frequencies: 8, 16, 22.05, 24, 32,

44.1 and 48 KHz.

• Bits per channel: 16, 20, 24, 32

• For S/P-DIF, 32, 44.1 and 48 KHz at 32 bits

Demultiplexing

Input

• System, program and transport stream

Output

• Program clock reference (PCR)

• 7 output buffers: 1 video, 4 audio, 1 PSI, 1

user data (subtitle, Teletext)

Graphics

Full-featured 5 plane OSD engine

• Background Color Plane

• MPEG Video Plane

• Two 32 bit ARGB (RGB with alphablend-

ing) or AYUV (YUV with alphablending)

8:8:8:8 graphics OSD planes

• Cursor Plane

• 2, 4 and 8 bit color indexing

• 0.5X or 2X vertical scaling

• Arbitrary horizontal scaling (16-pixel

boundaries)

• Letterbox conversion

• De-flickering filter

• Per-pixel accurate alpha blending

System Interfaces

• GPIO (general purpose input/output): 12

pins

• ICI (inter-device communications Interface,

similar to Philips I2C master mode)

• 32-bit SDRAM memory interface, using

2Mx32 SDRAMs

• Minimum SDRAM requirement: 8 MB

for encoder, 8 MB for decoder

• ROM interface

A/V Input Interfaces

Uncompressed Input (Encoder)

• Video: 8-bit ITU-R.BT-656

• Audio: I2S (2 each)

• VBI, user data: 8-bit video input

MPEG Bitstream Input (Decoder)

• 8-bit / 1-bit compressed data input interface

(CDI)

• Host/PCI interface

A/V Output Interfaces

Compressed Output (Encoder)

• 8-bit / 1-bit compressed data output interface

(CDO)

• Host/PCI interface

Uncompressed Output (Decoder)

• Video: 8-bit ITU-R.BT-656

• Audio: one I2S, and one IEC-958 S/PDIF

digital audio or IEC-61937 compressed

audio

• 162 MHz RISC processor with DSP extensions

for multiplexing demultiplexing, audio

encoding and audio decoding

• 365-pin PBGA package

• Physical dimensions: 27 mm by 27 mm

• Input voltages:

• 1.8 V internal

• 3.3 V I/O

• 5V tolerant/compliant

• IEEE 1149.1 compliant boundary scan and

assembly testing (JTAG)

The VW2010 is ideally suited for the following

consumer applications:

• Home gateway servers

• IP set-top boxes

• Digital surveillance

• PC capture devices for video capture, content

creation, and display

• Personal video recorder (PVR)

• VCD, Super-VCD and DVD format for

publishing.

• Camcorders and network cameras

In addition, the VW2010 is suited for the

following network applications:

• IP set-top box for B2B applications

• Streaming video distribution over DSL,

cable, ethernet, fiber and wireless networks

• Transcoding and transrating among MPEG-

1, -2, - 4 and H.263

• Video conferencing

• Security / surveillance

• Video-on-demand servers

Saves money and power

• Uses 8 MB of external SDRAM

• Uses 32-bit SDRAM interface

• Proprietary motion estimation algorithm

and rate control algorithm

• MPEG-4 compression reduces storage

requirement 100% compared to MPEG-2

compression

Reduces time to market

• MPEG-1, -2, -4 and H.263 with A/V/S

layer fully integrated on a single silicon

• Superior video quality

• Efficient rate control algorithm results in a

superior video quality

Superior flexibility

• Programmable frame rates, bit rates, resolution

and low delay mode

• Programmable GOP structure

• Transcoding and transrating among MPEG-

1, -2, - 4 and H.263 Baseline

Superior ingenuity

• MPEG-1, -2, -4 full-D1 interlaced encoder/

decoder

• Low latency support

• MPEG-4 short header support (H.263 baseline

support)

• Transcoding

• Transrating