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mpeg4 mpeg quantizer support

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Originally committed as revision 381 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2002-04-07 02:03:32 +00:00
parent e1a9dbffed
commit 3bf43d42ed
6 changed files with 99 additions and 18 deletions
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24
libavcodec/mpeg4data.h
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@@ -122,3 +122,27 @@ static const UINT16 pixel_aspect[16][2]={
{0, 0},
{0, 0},
};
/* these matrixes will be permuted for the idct */
INT16 ff_mpeg4_default_intra_matrix[64] = {
8, 17, 18, 19, 21, 23, 25, 27,
17, 18, 19, 21, 23, 25, 27, 28,
20, 21, 22, 23, 24, 26, 28, 30,
21, 22, 23, 24, 26, 28, 30, 32,
22, 23, 24, 26, 28, 30, 32, 35,
23, 24, 26, 28, 30, 32, 35, 38,
25, 26, 28, 30, 32, 35, 38, 41,
27, 28, 30, 32, 35, 38, 41, 45,
};
INT16 ff_mpeg4_default_non_intra_matrix[64] = {
16, 17, 18, 19, 20, 21, 22, 23,
17, 18, 19, 20, 21, 22, 23, 24,
18, 19, 20, 21, 22, 23, 24, 25,
19, 20, 21, 22, 23, 24, 26, 27,
20, 21, 22, 23, 25, 26, 27, 28,
21, 22, 23, 24, 26, 27, 28, 30,
22, 23, 24, 26, 27, 28, 30, 31,
23, 24, 25, 27, 28, 30, 31, 33,
};