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Based on kernel version 3.9. Page generated on 2013-05-02 23:03 EST.

1	  <title>Codec Interface</title>
2	
3	  <note>
4	    <title>Suspended</title>
5	
6	    <para>This interface has been be suspended from the V4L2 API
7	implemented in Linux 2.6 until we have more experience with codec
8	device interfaces.</para>
9	  </note>
10	
11	  <para>A V4L2 codec can compress, decompress, transform, or otherwise
12	convert video data from one format into another format, in memory.
13	Applications send data to be converted to the driver through a
14	&func-write; call, and receive the converted data through a
15	&func-read; call. For efficiency a driver may also support streaming
16	I/O.</para>
17	
18	  <para>[to do]</para>
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