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Second-stage gain and Moving Average Predictor codebooks.

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Originally committed as revision 15342 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vladimir Voroshilov
2008-09-17 06:13:07 +00:00
parent 1a18912e49
commit 00cc0ce91e
1 changed files with 42 additions and 0 deletions
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42
libavcodec/g729data.h
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@ -225,4 +225,46 @@ static const int16_t cb_gain_1st_8k[1<<GC_1ST_IDX_BITS_8K][2] =
{ 356 , 14756 }, { 356 , 14756 },
{ 57 , 5404 }, { 57 , 5404 },
}; };
/**
* gain codebook (second stage), 8k mode (3.9.2 of G.729)
*/
static const int16_t cb_gain_2nd_8k[1<<GC_2ND_IDX_BITS_8K][2] =
{ /*(1.14) (1.13) */
{ 5142 , 592 },
{ 17299 , 1861 },
{ 6160 , 2395 },
{ 16112 , 3392 },
{ 826 , 2005 },
{ 18973 , 5935 },
{ 1994 , 0 },
{ 15434 , 237 },
{ 10573 , 2966 },
{ 15132 , 4914 },
{ 11569 , 1196 },
{ 14194 , 1630 },
{ 8091 , 4861 },
{ 15161 , 14276 },
{ 9120 , 525 },
{ 13260 , 3256 },
};
/**
* 4th order Moving Average (MA) Predictor codebook (3.2.4 of G.729)
*/
static const int16_t cb_ma_predictor[2][MA_NP][10] =
{ /* (0.15) */
{
{ 8421, 9109, 9175, 8965, 9034, 9057, 8765, 8775, 9106, 8673},
{ 7018, 7189, 7638, 7307, 7444, 7379, 7038, 6956, 6930, 6868},
{ 5472, 4990, 5134, 5177, 5246, 5141, 5206, 5095, 4830, 5147},
{ 4056, 3031, 2614, 3024, 2916, 2713, 3309, 3237, 2857, 3473}
},
{
{ 7733, 7880, 8188, 8175, 8247, 8490, 8637, 8601, 8359, 7569},
{ 4210, 3031, 2552, 3473, 3876, 3853, 4184, 4154, 3909, 3968},
{ 3214, 1930, 1313, 2143, 2493, 2385, 2755, 2706, 2542, 2919},
{ 3024, 1592, 940, 1631, 1723, 1579, 2034, 2084, 1913, 2601}
}
};
#endif // AVCODEC_G729DATA_H #endif // AVCODEC_G729DATA_H