VW2010 MPEG-1, -2, -4 Audio/Video CODEC ChipChip
Product Brief
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 ISO/IEC-11172-2, ISO/IEC-
13818-2, ISO/IEC-14496-2 and ITU-T
H.263. The VW2010 accepts uncompressed
ITU-R.BT-656 video and I2S
audio, compresses the video into MPEG-
1, -2, -4 or H.263 formats, compresses the
audio into MPEG-1, MPEG-2, MP3,
AAC or AC-3 audio formats, and outputs
them as transport streams 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, MPEG-2, MP3,
AAC or AC-3 audio bitstream input, and
outputs audio through I2S, S/P-DIF or
IEC-61937.
鈥?Dynamically adjustable controls
鈥?Fixed frame rates of 29.97 (NTSC) or
25 (PAL) frames per second, or variable
frame rates in low delay mode
鈥?Constant or variable bit-rate from
22.5 Kb/s to 15 Mb/s
and 720 pixels in 16-pixel steps
鈥?Vertical resolution between 80 and 480
pixels (NTSC) or 576 pixels (PAL) in
16-pixel steps
鈥?Programmed GOP structure and
length: I, IP, IBP and IBBP
鈥?Programmed low delay mode
Feature List
Video Encoding
鈥?Support for MPEG-1
鈥?Support for MPEG-2 MP@ML
鈥?Support for MPEG-4 Simple Profile
@ L1, L2 and L3, with extensions to full
D1 and interlaced video
鈥?Adaptive field/frame motion
compensation and DCT type
鈥?4:2:2 to 4:2:0 conversion
鈥?Scene change detection
鈥?Inverse telecine (3:2 pulldown)
鈥?Motion estimation search range +/-
127 pels horizontal and +/- 63 pels
vertical, with half-pel accuracy
鈥?8-tap horiz. filter and 4-tap vert. filter
鈥?Extraction of VBI data (including
Close Captioned and NABTS data)
from the ITU-R.BT-656 input
鈥?Support for private and user data insertions
from VBI or host/PCI port
Audio Encoding
鈥?MPEG-1 Layer I, II and III (MP3)
鈥?MPEG-2 Layer I and II
鈥?2-channel down-mixed AAC
鈥?2-channel down-mixed AC-3
鈥?Sampling frequencies: 8, 16, 22.05, 24,
32, 44.1, 48 and 96 KHz.
鈥?Bits per channel: 16, 20, 24, 32
Multiplexing
Input
鈥?User data or VBI data insertion
鈥?Video and audio PES or ES
Output
鈥?MPEG-1 System Stream
鈥?MPEG-2 PS or TS
鈥?MPEG-4 embedded in MPEG-2 TS
鈥?PES and ES output
Video Decoding
鈥?MPEG-1, -2, -4 and H.263 decoding
鈥?7-tap horiz. filter and 2-tap vert. filter
鈥?Letterbox conversion
鈥?3:2 pulldown
鈥?Closed Captioning and Teletext
Audio Decoding
鈥?MPEG-1 Layer I, II and III (MP3)
鈥?MPEG-2 Layer I and II
鈥?2-channel down-mixed AAC
鈥?2-channel down-mixed AC-3
鈥?Sampling frequencies: 8, 16, 22.05, 24,
32, 44.1, 48 and 96 KHz.
鈥?Bits per channel: 16, 20, 24, 32
鈥?For S/P-DIF, 32, 44.1 and 48 KHz at
32 bits
5300 Stevens Creek Blvd., Suite 450, San Jose, CA 95129 Tel:(408) 615-1888 URL: www.vwebcorp.com
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