📄 中华视频网 - h_264压缩性能和应用分析.htm
字号:
style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN
lang=EN-US><SPAN style="mso-spacerun: yes"><FONT
face="Times New Roman">
</FONT></SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一、概述</SPAN><SPAN
lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN
lang=EN-US><SPAN style="mso-spacerun: yes"><FONT
face="Times New Roman">
</FONT></SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">视频压缩国际标准主要有由</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">ITU-T</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制定的</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.261</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.262</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.263</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.264</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和由</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEG</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">制定的</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEG-1</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEG-2</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEG-4</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，其中</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.262/MPEG-2</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.264/MPEG-4
AVC</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">由</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">ITU-T</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">与</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEG</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">联合制定。</SPAN><SPAN
lang=EN-US><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN
lang=EN-US><SPAN style="mso-spacerun: yes"><FONT
face="Times New Roman">
</FONT></SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">视频压缩系列标准</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.26x</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">主要用于视频通信应用中，例如，基于</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">ISDN</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">网络的</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.320</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">框架标准的视频标准为</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.261</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.262</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.263</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，基于</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">LAN</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">网络的</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.323</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和基于</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">PSTN</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">网络</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.324</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">框架标准中的视频标准为</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.261</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.263</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。视频压缩系列标准</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEGx</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">主要用于视频存储播放应用中，例如，</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">VCD</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中的视频压缩标准为</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEG-1</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">DVD</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中的视频压缩标准为</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEG-2</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEG-4</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.264</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">标准则可以广泛应用于多种领域中，</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">MPEG-4</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">标准已在无线视频通信和流媒体应用中得到采用，由于</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.264</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在压缩性能方面所具有的优势，</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.264</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">将会在实时视频通信、广播电视、视频存储播放等领域中得到应用。本文将主要介绍、分析</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.264</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">标准的压缩性能比较和应用情况</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">.<o:p></o:p></FONT></SPAN></FONT></P><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">二、</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">H.264</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">压缩性能</SPAN><SPAN
lang=EN-US><o:p></o:p></SPAN>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN
lang=EN-US><SPAN style="mso-spacerun: yes"><FONT
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -