在哪里?我只在w3c上面看到这句话..... The HTML5 specification does not require a video codec to be supported by all user agents. Thus, one need to provide alternate sources to ensure proper user experience in the existing user agents.
在哪里?我只在w3c上面看到这句话..... The HTML5 specification does not require a video codec to be supported by all user agents. Thus, one need to provide alternate sources to ensure proper user experience in the existing user agents. http://www.w3school.com.cn/html5/html_5_video.asp 这个地址
格式 IE Firefox Opera Chrome Safari
Ogg No 3.5+ 10.5+ 5.0+ No
MPEG 4 9.0+ No No 5.0+ 3.0+
WebM No 4.0+ 10.6+ 6.0+ No
Ogg = 带有 Theora 视频编码和 Vorbis 音频编码的 Ogg 文件
MPEG4 = 带有 H.264 视频编码和 AAC 音频编码的 MPEG 4 文件
WebM = 带有 VP8 视频编码和 Vorbis 音频编码的 WebM 文件
http://en.wikipedia.org/wiki/Open_video#Table 具体看这里~~
The HTML5 specification does not require a video codec to be supported by all user agents. Thus, one need to provide alternate sources to ensure proper user experience in the existing user agents.
The HTML5 specification does not require a video codec to be supported by all user agents. Thus, one need to provide alternate sources to ensure proper user experience in the existing user agents.
http://www.w3school.com.cn/html5/html_5_video.asp 这个地址