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Archive for the ‘video’ tag

To encode a video file for use in HTML5 video compatible browser (firefox 3.5 and above supports HTML5 video), use the command:

$ ffmpeg -i in.flv -vcodec libtheora -sameq \
   -acodec libvorbis -ac 2 -sameq out.ogg

Finally use it in your page:

<video src="out.ogg">
Your browser does not support HTML5 video.
</video>

Reference: HTML 5 <video> Tag.

Written by Subhash Chandran

July 14th, 2009 at 9:08 am

To stream video content using Video View Portlet, I had to re-encode some videos to flv format. This is pretty simple in Linux:

$ mencoder -oac copy -ovc lavc -o out.flv in.avi

-oac means Output Audio Codec and -ovc means Output Video Codec. The various options for -oac:

`copy`	no encoding, just streamcopy.
`pcm`	Encode to uncompressed PCM.
`mp3lame`	Encode to MP3 (using LAME).
`lavc`	Encode with a libavcodec codec.

The options for -ovc:

`copy`	no encoding, just streamcopy.
`raw`	Encode to an arbitrary uncompressed format (use ’-vf format’ to select).
`lavc`	Encode with a libavcodec codec.

Written by Subhash Chandran

June 24th, 2009 at 11:13 am

Posted in Linux