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authorMichael Niedermayer <michaelni@gmx.at>2011-07-21 16:27:55 +0200
committerMichael Niedermayer <michaelni@gmx.at>2011-07-21 16:28:53 +0200
commitf93f6963babf08a7bcf85b9a57f37266dc0a4ae0 (patch)
treed9729ad7db8cb9f9a6a5483ac960ef7a56310072 /libavcodec/celp_math.c
parent8c2863b87f651bfce061d5b0e03cd756b049a553 (diff)
parente5985185d2eda942333ebbb72bd7d043ffe40be7 (diff)
downloadffmpeg-f93f6963babf08a7bcf85b9a57f37266dc0a4ae0.tar.gz
Merge remote-tracking branch 'qatar/master'
* qatar/master: rv30: return AVERROR(EINVAL) instead of EINVAL build: add -L flags before existing LDFLAGS simple_idct: whitespace cosmetics simple_idct: make repeated code a macro dsputil: remove huge #if 0 block simple_idct: change 10-bit add/put stride from pixels to bytes dsputil: allow 9/10-bit functions for non-h264 codecs dnxhd: rename some data tables dnxhdenc: remove inline from function only called through pointer dnxhdenc: whitespace cosmetics swscale: mark YUV422P10(LE,BE) as supported for output configure: add -xc99 to LDFLAGS for Sun CC Remove unused and non-compiling vestigial g729 decoder Remove unused code under G729_BITEXACT #ifdef. mpegvideo: fix invalid picture unreferencing. dsputil: Remove extra blank line at end. dsputil: Replace a LONG_MAX check with HAVE_FAST_64BIT. simple_idct: add 10-bit version Conflicts: Makefile libavcodec/g729data.h libavcodec/g729dec.c libavcodec/rv30.c tests/ref/lavfi/pixdesc tests/ref/lavfi/pixfmts_copy tests/ref/lavfi/pixfmts_null tests/ref/lavfi/pixfmts_scale tests/ref/lavfi/pixfmts_vflip Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/celp_math.c')
-rw-r--r--libavcodec/celp_math.c85
1 files changed, 0 insertions, 85 deletions
diff --git a/libavcodec/celp_math.c b/libavcodec/celp_math.c
index 09111da819..de33109b44 100644
--- a/libavcodec/celp_math.c
+++ b/libavcodec/celp_math.c
@@ -27,82 +27,6 @@
#include "avcodec.h"
#include "celp_math.h"
-#ifdef G729_BITEXACT
-/**
- * Cosine table: base_cos[i] = (1<<15) * cos(i*PI/64)
- */
-static const int16_t base_cos[64] =
-{
- 32767, 32729, 32610, 32413, 32138, 31786, 31357, 30853,
- 30274, 29622, 28899, 28106, 27246, 26320, 25330, 24279,
- 23170, 22006, 20788, 19520, 18205, 16846, 15447, 14010,
- 12540, 11039, 9512, 7962, 6393, 4808, 3212, 1608,
- 0, -1608, -3212, -4808, -6393, -7962, -9512, -11039,
- -12540, -14010, -15447, -16846, -18205, -19520, -20788, -22006,
- -23170, -24279, -25330, -26320, -27246, -28106, -28899, -29622,
- -30274, -30853, -31357, -31786, -32138, -32413, -32610, -32729
-};
-
-/**
- * Slope used to compute cos(x)
- *
- * cos(ind*64+offset) = base_cos[ind]+offset*slope_cos[ind]
- * values multiplied by 1<<19
- */
-static const int16_t slope_cos[64] =
-{
- -632, -1893, -3150, -4399, -5638, -6863, -8072, -9261,
- -10428, -11570, -12684, -13767, -14817, -15832, -16808, -17744,
- -18637, -19486, -20287, -21039, -21741, -22390, -22986, -23526,
- -24009, -24435, -24801, -25108, -25354, -25540, -25664, -25726,
- -25726, -25664, -25540, -25354, -25108, -24801, -24435, -24009,
- -23526, -22986, -22390, -21741, -21039, -20287, -19486, -18637,
- -17744, -16808, -15832, -14817, -13767, -12684, -11570, -10428,
- -9261, -8072, -6863, -5638, -4399, -3150, -1893, -632
-};
-
-/**
- * Table used to compute exp2(x)
- *
- * tab_exp2[i] = (1<<14) * exp2(i/32) = 2^(i/32) i=0..32
- */
-static const uint16_t tab_exp2[33] =
-{
- 16384, 16743, 17109, 17484, 17867, 18258, 18658, 19066, 19484, 19911,
- 20347, 20792, 21247, 21713, 22188, 22674, 23170, 23678, 24196, 24726,
- 25268, 25821, 26386, 26964, 27554, 28158, 28774, 29405, 30048, 30706,
- 31379, 32066, 32767
-};
-
-int16_t ff_cos(uint16_t arg)
-{
- uint8_t offset= arg;
- uint8_t ind = arg >> 8;
-
- assert(arg < 0x4000);
-
- return FFMAX(base_cos[ind] + ((slope_cos[ind] * offset) >> 12), -0x8000);
-}
-
-int ff_exp2(uint16_t power)
-{
- uint16_t frac_x0;
- uint16_t frac_dx;
- int result;
-
- assert(power <= 0x7fff);
-
- frac_x0 = power >> 10;
- frac_dx = (power & 0x03ff) << 5;
-
- result = tab_exp2[frac_x0] << 15;
- result += frac_dx * (tab_exp2[frac_x0+1] - tab_exp2[frac_x0]);
-
- return result >> 10;
-}
-
-#else // G729_BITEXACT
-
/**
* Cosine table: base_cos[i] = (1<<15) * cos(i*PI/64)
*/
@@ -154,8 +78,6 @@ int ff_exp2(uint16_t power)
return result + ((result*(power&31)*89)>>22);
}
-#endif // else G729_BITEXACT
-
/**
* Table used to compute log2(x)
*
@@ -163,17 +85,10 @@ int ff_exp2(uint16_t power)
*/
static const uint16_t tab_log2[33] =
{
-#ifdef G729_BITEXACT
- 0, 1455, 2866, 4236, 5568, 6863, 8124, 9352,
- 10549, 11716, 12855, 13967, 15054, 16117, 17156, 18172,
- 19167, 20142, 21097, 22033, 22951, 23852, 24735, 25603,
- 26455, 27291, 28113, 28922, 29716, 30497, 31266, 32023, 32767,
-#else
4, 1459, 2870, 4240, 5572, 6867, 8127, 9355,
10552, 11719, 12858, 13971, 15057, 16120, 17158, 18175,
19170, 20145, 21100, 22036, 22954, 23854, 24738, 25605,
26457, 27294, 28116, 28924, 29719, 30500, 31269, 32025, 32769,
-#endif
};
int ff_log2(uint32_t value)