'H.263'에 해당되는 글 2건

  1. 2010.04.15 x264 와 h264의 관계?
  2. 2010.01.19 H.26x MPEG2, MPEG4 (6)
프로그램 사용/VLC2010.04.15 22:47
x264 is a free library for encoding H264/AVC video streams.

중요한건 videolan.org 의 x264 개발자 페이지의 첫 줄에 나와있다.
library for encoding
H.264는 Encoding / Decoding 으로 보이고.
X.264는 opensource GPL Encoding으로 보인다.
간단하게 H.264의 반쪽 버전이라고 해야하려나?

H.264는
MPEG-4 part 10
AVC(Advanced Video Codec)

H.263은(3gpp / 영상통화)
MPEG-2
MPEG-4 Part 2

[링크 : http://www.videolan.org/developers/x264.html]
[링크 : http://en.wikipedia.org/wiki/X264]
[링크 : http://ko.wikipedia.org/wiki/X264]

[링크 : http://ko.wikipedia.org/wiki/H.264]
[링크 : http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC]

http://en.wikipedia.org/wiki/H.263

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Posted by 구차니
TAG H.263, H.264, x.264

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회사일2010.01.19 11:01
MPEG-1's known weaknesses:
    * an audio compression system limited to two channels (stereo.)
    * no standardized support for interlaced video with poor compression when used for interlaced video
    * only one standardized "profile" (Constrained Parameters Bitstream) which was unsuited for higher resolution video. MPEG-1 could support 4k video but there was no easy way to encode video for higher resolutions, and identify hardware capable of supporting it, as the limitations of such hardware were not defined.
    * Support for only one color space, 4:2:0.

[링크 : http://en.wikipedia.org/wiki/Mpeg2]



MPEG-2 part 1 ~ 11
Part  1 H.222.0
Part  2 H.262
Part  3 MPEG-2 BC - backwards compatible with MPEG-1 Audio
Part  4 - conformance testing
Part  5 - software simulation
Part  6 DSM-CC (Digital Storage Media Command and Control)
Part  7 MPEG-2 NBC (Audio - Non-Backwards Compatible with MPEG-1 Audio) / AAC
Part  8 - drop
Part  9
Part 10 DSM-CC
Part 11 IPMP (Intellectual Property Management and Protection)

Audio encoding
 MPEG-2 also introduces new audio encoding methods. These are:[12]
 MPEG-2 BC (backward compatible with MPEG-1 audio formats)[6][5][9]
     * low bitrate encoding with halved sampling rate (MPEG-1 Layer 1/2/3 LSF)
     * multichannel encoding with up to 5.1 channels
 MPEG-2 NBC (Non-Backward Compatible)[6][5]
     * MPEG-2 AAC
     * multichannel encoding with up to 48 channels

[링크 : http://en.wikipedia.org/wiki/Mpeg2]


MPEG-4 part 1 ~ 27
Part  1 System
Part  2 Visual
Part  3 Audio
Part  4 Conformance testing
Part  5 Reference software
Part  6 DMIF (Delivery Multimedia Integration Framework)
Part  7
Part  8 over IP
Part  9 Reference hardware description
Part 10 AVC (H.264)
Part 11
Part 12 3gp (iso base media file format)
Part 13 IPMP
Part 14 mp4
Part 15 AVC (Advanced Video Coding)
Part 16 AFX (Animation Framework eXtension)
Part 17
Part 18
Part 19
Part 20
Part 21
Part 22
Part 23
Part 24
Part 25
Part 26
Part 27

[링크 : http://en.wikipedia.org/wiki/MPEG-4]



H.262 or MPEG-2 Part 2(known as MPEG-2 Video) is a digital video compression and encoding standard.
H.263 is a video codec standard originally designed as a low-bitrate compressed format for videoconferencing.
H.264/MPEG-4 AVC is a standard for video compression.

H.262 [링크 : http://en.wikipedia.org/wiki/MPEG-2_Part_2]
H.263 [링크 : http://en.wikipedia.org/wiki/H.263]
H.264 [링크 : http://en.wikipedia.org/wiki/H.264]
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  1. 놀러 왔어요~
    흠...포스팅에 대해선...음...음...음...^^

    2010.01.19 11:39 신고 [ ADDR : EDIT/ DEL : REPLY ]
  2. H.323은 제가 조금 아는데..ㅎㅎ

    2010.01.19 12:03 신고 [ ADDR : EDIT/ DEL : REPLY ]
  3. H264 디코더로 CoreAVC가 좋더군요...
    응? 이게 아닌가...;;;;

    2010.01.19 14:42 신고 [ ADDR : EDIT/ DEL : REPLY ]