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instructions for using the decoder

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Originally committed as revision 2340 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Mike Melanson 2003-10-03 05:50:06 +00:00
parent 4120a53a86
commit 5a00941b06
1 changed files with 6 additions and 1 deletions
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7
libavcodec/idcinvideo.c
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@ -24,7 +24,12 @@
* For more information about the Id CIN format, visit:
* http://www.csse.monash.edu.au/~timf/
*
* This video decoder outputs PAL8 colorspace data.
* This video decoder outputs PAL8 colorspace data. Interacting with this
* decoder is a little involved. During initialization, the demuxer must
* transmit the 65536-byte Huffman table(s) to the decoder via extradata.
* Then, whenever a palette change is encountered while demuxing the file,
* the demuxer must use the same extradata space to transmit an
* AVPaletteControl structure.
*
* Id CIN video is purely Huffman-coded, intraframe-only codec. It achieves
* a little more compression by exploiting the fact that adjacent pixels