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DivX is a new digital video compression
technology derived from MPEG4V3 encoding technology of
Microsoft developed by DivXNetworks Cop.. DivX is formed by
combining the compressed audio with MP3 technology and
compressed video with MPEG-4 technology. *.DivX or *.DIV
adopts MPEG-4 compression algorithm, and it maintains the
original image quality of DVD and may could compress a
120-minute-long film to about 300MB video stream. Based on
MPEG-4 standard, DivX could even compress the VHS format
video files to 1% of the original file size.
Zune is the name of both services that
obtain and share the media content and a brand of Portable
Media Player developed by Microsoft like iPod of Apple Inc.
Xbox is a video game console competing
intensely with the Nintendo GameCube/Wii or Sony's
PlayStation/(PS2/PS3).Microsoft has published versions
Xenon, Xbox 2, Xbox FS, Xbox Next, or NextBox, XBOX 360 (HD
resolution, high-definition).
To play DIVX on Zune / Xbox, please
convert it to wmv first on PC.
install the
DivX decoder and audio decoder for the divx extension.
Normally the audio stream of DIVX is encoded by MP3. In
Windows it is not needed to install extra mp3 decoder.
Download
Zune Xbox Converter to
convert DIVX to Zune/Xbox. Then use USB or networks to
transfer the wmv file. Or burn the files to CD/DVD, play
disks on Xbox easily.
H.261 is the first practical digital
video coding standard designed by ITU-T to develop
conference TV and video telephony on ISDN. It becomes the
design framework of later International Standard of Video
Coding including MPEG-1, MPEG-2/H.262 and H.263. H.261. It
only deals with CIF and QCIF image formats by dividing every
frame into images layer, Acer block group layer, Acer block
and block layer. H.261 output rate is constant, while the
image quality is unsteady.
H.263 is the standard draft of ITU-T
designed for low bit-stream communications. Actually the
standard could be used in broader bitstream scope but not
limit to low bit-stream. What痴 more, it痴 thought to be
used to replace H.261.The coding algorithm of H.263 is the
same with that of H.261.but there池e still some differences.
e.g. H.263 adopts semi-precision for motion compensation
while H.261 adopts all pixel accuracy and filtering cycle;
H.263 contains four consultable options to improve
performance.
To play H.261 or H.263 on Zune /Xbox,
please install H.261/H.263 decoder for them to
wmv. |
