[FFmpeg-soc] [soc] G.723.1 Decoder a5364ae5ef0f5b80efc51bc164051f583e0ce3bc
naufal11 at gmail.com
naufal11 at gmail.com
Sun Jun 27 20:28:03 CEST 2010
- Log -----------------------------------------------------------------
commit a5364ae5ef0f5b80efc51bc164051f583e0ce3bc
Author: Naufal <naufal11 at gmail.com>
Date: Sun Jun 27 23:55:01 2010 +0530
Generate adaptive & total excitation vector
diff --git a/libavcodec/g723_1.c b/libavcodec/g723_1.c
index 8c58b2c..e24248c 100755
--- a/libavcodec/g723_1.c
+++ b/libavcodec/g723_1.c
@@ -330,6 +330,45 @@ static void gen_fcb_excitation(int16_t *vector, G723_1_Subframe subfrm,
}
}
+/*
+ * Generate adaptive codebook excitation
+ *
+ * @param vector restored excitation vector
+ */
+static void gen_acb_excitation(int16_t *vector, int16_t *prev_excitation,
+ int16_t pitch_lag, G723_1_Subframe subfrm,
+ Rate cur_rate)
+{
+ int16_t residual[SUBFRAME_LEN + PITCH_ORDER - 1];
+ const int16_t *cb_ptr;
+ int lag = pitch_lag + subfrm.ad_cb_lag - 1;
+ int temp = PITCH_MAX - PITCH_ORDER / 2 - lag;
+ int i, j;
+ int64_t sum;
+
+ residual[0] = prev_excitation[temp];
+ residual[1] = prev_excitation[temp + 1];
+
+ for (i = 2; i < SUBFRAME_LEN + PITCH_ORDER - 1; i++)
+ residual[i] = prev_excitation[temp + i % lag];
+
+ // Select quantization table
+ if (cur_rate == Rate6k3 && pitch_lag < SUBFRAME_LEN - 2)
+ cb_ptr = adaptive_cb_gain85;
+ else
+ cb_ptr = adaptive_cb_gain170;
+
+ // Calculate adaptive vector
+ cb_ptr += subfrm.ad_cb_gain * 20;
+ for (i = 0; i < SUBFRAME_LEN; i++) {
+ sum = 0;
+ for (j = 0; j < PITCH_ORDER; j++) {
+ temp = av_clipl_int32((int64_t)residual[i + j] * cb_ptr[j] << 1);
+ sum = av_clipl_int32(sum + (temp << 1));
+ }
+ vector[i] = av_clipl_int32(sum + (1 << 15)) >> 16;
+ }
+}
static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
int *data_size, AVPacket *avpkt)
@@ -341,9 +380,10 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
int16_t cur_lsp[LPC_ORDER];
int16_t lpc[SUBFRAMES * LPC_ORDER + 4];
int16_t temp_vector[FRAME_LEN + PITCH_MAX];
+ int16_t acb_vector[SUBFRAME_LEN];
int16_t *vector_ptr;
int16_t interp_gain;
- int bad_frame = 0, erased_frames = 0, i;
+ int bad_frame = 0, erased_frames = 0, i, j;
if (!buf_size || buf_size < frame_size[buf[0] & 3]) {
*data_size = 0;
@@ -375,6 +415,15 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
for (i = 0; i < SUBFRAMES; i++) {
gen_fcb_excitation(vector_ptr, p->subframe[i], p->cur_rate,
p->pitch_lag[i >> 1], i);
+ gen_acb_excitation(acb_vector, &temp_vector[SUBFRAME_LEN * i],
+ p->pitch_lag[i >> 1], p->subframe[i],
+ p->cur_rate);
+ // Get the total excitation
+ for (j = 0; j < SUBFRAME_LEN; j++) {
+ vector_ptr[j] = av_clip_int16(vector_ptr[j] << 1);
+ vector_ptr[j] = av_clip_int16(vector_ptr[j] + acb_vector[j]);
+ }
+ vector_ptr += SUBFRAME_LEN;
}
}
}
diff --git a/libavcodec/g723_1_data.h b/libavcodec/g723_1_data.h
index 86a749b..fc20054 100644
--- a/libavcodec/g723_1_data.h
+++ b/libavcodec/g723_1_data.h
@@ -6,6 +6,7 @@
#define LSP_CB_SIZE 256
#define PITCH_MIN 18
#define PITCH_MAX (PITCH_MIN + 127)
+#define PITCH_ORDER 5
#define GRID_SIZE 2
#define PULSE_MAX 6
#define GAIN_LEVELS 24
@@ -1015,3 +1016,647 @@ static const int16_t pitch_contrib[340] = {
60, 0, 2, 25650, 60, 0, -2, 31253,
-2, 25144, 0, 17998
};
+
+static const int16_t adaptive_cb_gain85[85 * 20] = {
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 800, 1496, 167, -256,
+ -338, -39, -136, -1, -4, -6, -73, -8,
+ -15, 12, 23, 2, 16, 30, 3, -5,
+ -462, -686, 493, 2575, 311, -13, -28, -14,
+ -404, -5, -19, 13, 20, 72, 107, -77,
+ 8, 13, -9, -48, 1483, 144, 784, 928,
+ 1243, -134, -1, -37, -52, -94, -13, -71,
+ -6, -84, -8, -44, -112, -10, -59, -70,
+ -77, 275, 3522, 1056, -1254, 0, -4, -757,
+ -68, -95, 1, 16, -59, 4, -17, -227,
+ -5, 21, 269, 80, -125, -40, -264, 381,
+ 5027, 0, 0, -4, -8, -1542, 0, -2,
+ 0, 2, 0, 6, 38, 12, 81, -117,
+ 138, 332, 2215, 2574, 1339, -1, -6, -299,
+ -404, -109, -2, -18, -44, -21, -52, -348,
+ -11, -27, -181, -210, 3685, 2883, -887, 866,
+ -1639, -828, -507, -48, -45, -164, -648, 199,
+ 156, -194, -152, 46, 368, 288, -88, 86,
+ 1396, 2146, 2235, 345, 942, -118, -281, -305,
+ -7, -54, -182, -190, -292, -29, -45, -47,
+ -80, -123, -128, -19, 13, 4475, 3549, -804,
+ -655, 0, -1222, -768, -39, -26, -3, -2,
+ -969, 0, 219, 174, 0, 179, 141, -32,
+ -724, 254, 242, 6049, 2462, -32, -3, -3,
+ -2233, -370, 11, 10, -3, 267, -94, -89,
+ 108, -38, -36, -909, 626, -1713, 6121, 4561,
+ -1061, -23, -179, -2287, -1270, -68, 65, -233,
+ 640, -174, 477, -1704, 40, -111, 396, 295,
+ -350, 1391, 7985, 511, -405, -7, -118, -3892,
+ -15, -10, 29, 170, -678, 10, -43, -249,
+ -8, 34, 197, 12, 3144, -529, 608, 2530,
+ 3878, -603, -17, -22, -390, -918, 101, -116,
+ 19, -485, 81, -93, -744, 125, -144, -599,
+ 2589, -689, 3045, 5603, -404, -409, -29, -566,
+ -1916, -10, 108, -481, 128, -885, 235, -1041,
+ 63, -17, 75, 138, 3107, 513, 1374, -3594,
+ -4922, -589, -16, -115, -788, -1478, -97, -260,
+ -43, 681, 112, 301, 933, 154, 413, -1079,
+ 2468, 6010, 1107, -390, 1961, -372, -2204, -74,
+ -9, -234, -905, -166, -406, 58, 143, 26,
+ -295, -719, -132, 46, 4773, 2766, 2368, 4862,
+ -4044, -1390, -467, -342, -1443, -998, -806, -690,
+ -399, -1416, -821, -702, 1178, 682, 584, 1200,
+ 1665, -1879, 1443, 1701, 8562, -169, -215, -127,
+ -176, -4475, 190, -146, 165, -172, 195, -149,
+ -870, 982, -754, -889, 2716, 9011, -1007, 755,
+ -1785, -450, -4956, -61, -34, -194, -1493, 167,
+ 554, -125, -415, 46, 296, 982, -109, 82,
+ -2727, 7548, 1285, 938, 3420, -453, -3478, -100,
+ -53, -714, 1256, 213, -592, 156, -432, -73,
+ 569, -1576, -268, -196, 3677, 882, 4050, 1202,
+ 2323, -825, -47, -1001, -88, -329, -198, -909,
+ -218, -269, -64, -297, -521, -125, -574, -170,
+ 2046, -753, 122, 10102, 603, -255, -34, 0,
+ -6229, -22, 94, -15, 5, -1261, 464, -75,
+ -75, 27, -4, -372, 449, -1815, 10690, 3870,
+ -527, -12, -201, -6976, -914, -16, 49, -293,
+ 1184, -106, 428, -2525, 14, -58, 344, 124,
+ -941, 2352, 5049, 3650, 2637, -54, -337, -1556,
+ -813, -424, 135, 290, -725, 209, -524, -1125,
+ 151, -378, -812, -587, -1879, 796, 3117, 9569,
+ -404, -215, -38, -593, -5589, -9, 91, 357,
+ -151, 1097, -464, -1821, -46, 19, 76, 236,
+ -1715, 2043, -2096, 9946, 4001, -179, -254, -268,
+ -6038, -977, 213, -219, 261, 1041, -1240, 1272,
+ 418, -498, 511, -2429, -5772, -618, -3921, 284,
+ -3155, -2033, -23, -938, -4, -607, -218, -1381,
+ -148, 100, 10, 68, -1111, -119, -755, 54,
+ 382, 4748, 8003, -2064, 2198, -8, -1376, -3909,
+ -260, -294, -110, -186, -2319, 48, 598, 1008,
+ -51, -637, -1073, 277, -867, 3015, 11926, -1675,
+ 947, -45, -555, -8681, -171, -54, 159, 631,
+ -2195, -88, 308, 1219, 50, -174, -690, 96,
+ -4933, -432, 6757, 3771, 1352, -1485, -11, -2786,
+ -867, -111, -130, 2034, 178, 1135, 99, -1555,
+ 407, 35, -557, -311, 152, 9726, 4231, -1928,
+ 1490, -1, -5774, -1092, -226, -135, -90, -39,
+ -2511, 17, 1144, 498, -13, -884, -384, 175,
+ 2512, 193, 9033, 5361, -3148, -385, -2, -4980,
+ -1754, -605, -29, -1385, -106, -822, -63, -2956,
+ 482, 37, 1735, 1030, 8464, 2844, 12, 549,
+ 2132, -4373, -493, 0, -18, -277, -1469, -6,
+ -2, -284, -95, 0, -1101, -370, -1, -71,
+ 2141, -2602, 7166, 9046, -1350, -279, -413, -3134,
+ -4994, -111, 340, -936, 1138, -1182, 1436, -3957,
+ 176, -214, 590, 745, -244, 278, 13307, 1227,
+ -161, -3, -4, -10808, -91, -1, 4, 198,
+ -226, 18, -20, -997, -2, 2, 131, 12,
+ -1947, 8217, 6269, 917, -2559, -231, -4121, -2399,
+ -51, -399, 976, 745, -3144, 108, -460, -350,
+ -304, 1283, 979, 143, -1810, 2061, -2781, 6056,
+ 10058, -200, -259, -472, -2238, -6174, 227, -307,
+ 349, 669, -761, 1028, 1111, -1265, 1707, -3717,
+ 7827, 9161, -3409, 2473, -1510, -3739, -5122, -709,
+ -373, -139, -4376, 1628, 1906, -1181, -1382, 514,
+ 721, 844, -314, 228, -1430, 8313, 9541, -2955,
+ 1626, -124, -4218, -5556, -533, -161, 725, 832,
+ -4841, -257, 1499, 1721, 142, -825, -947, 293,
+ 2819, -4247, 5391, 8673, 2756, -485, -1101, -1774,
+ -4591, -463, 730, -927, 1397, -1492, 2248, -2854,
+ -474, 714, -907, -1459, 141, 14552, 690, 257,
+ -112, -1, -12926, -29, -4, 0, -125, -5,
+ -613, -2, -228, -10, 0, 99, 4, 1,
+ 11938, -1859, 1806, -962, -884, -8699, -211, -199,
+ -56, -47, 1355, -1316, 205, 701, -109, 106,
+ 644, -100, 97, -51, 3728, 1982, 2264, 4584,
+ 3131, -848, -239, -312, -1282, -598, -451, -515,
+ -273, -1043, -554, -633, -712, -378, -432, -876,
+ -1181, 766, 720, 14303, -216, -85, -35, -31,
+-12486, -2, 55, 51, -33, 1031, -668, -628,
+ -15, 10, 9, 189, -4385, 4826, 10112, 1569,
+ 3388, -1173, -1421, -6242, -150, -700, 1291, 2706,
+ -2979, 420, -462, -969, 906, -998, -2091, -324,
+ -448, 1932, 15591, -1842, 657, -12, -227, -14837,
+ -207, -26, 52, 427, -1838, -50, 217, 1753,
+ 18, -77, -626, 74, -4141, 1844, 3962, 5517,
+ 6220, -1046, -207, -958, -1858, -2361, 466, 1001,
+ -446, 1394, -621, -1334, 1572, -700, -1504, -2094,
+ 729, -2299, 14755, 3657, -952, -32, -322, -13288,
+ -816, -55, 102, -656, 2071, -162, 513, -3294,
+ 42, -133, 857, 212, -1385, 5801, 13339, -3137,
+ 1344, -117, -2054, -10861, -600, -110, 490, 1127,
+ -4723, -265, 1111, 2554, 113, -476, -1094, 257,
+ 4710, 9661, 1073, -2467, 3274, -1354, -5697, -70,
+ -371, -654, -2777, -308, -633, 709, 1455, 161,
+ -941, -1930, -214, 493, 1843, -3624, 12422, 6898,
+ -1559, -207, -802, -9419, -2904, -148, 407, -1397,
+ 2748, -775, 1526, -5230, 175, -344, 1182, 656,
+ 1433, 2394, 2507, 1380, 8780, -125, -349, -383,
+ -116, -4705, -209, -219, -366, -120, -201, -211,
+ -768, -1283, -1343, -740, -1712, 12915, 5883, -2197,
+ 991, -179, -10181, -2112, -294, -60, 1350, 615,
+ -4638, -229, 1732, 789, 103, -781, -356, 133,
+ 15072, 2158, -1245, 910, -496, -13865, -284, -94,
+ -50, -15, -1986, 1145, 164, -837, -119, 69,
+ 456, 65, -37, 27, 4655, 7319, 4916, 586,
+ -3381, -1322, -3270, -1475, -20, -697, -2079, -1396,
+ -2196, -166, -261, -175, 960, 1510, 1014, 120,
+ 1191, -2140, 5120, 13498, -1418, -86, -279, -1600,
+-11121, -122, 155, -372, 669, -981, 1763, -4218,
+ 103, -185, 443, 1168, -1530, -817, 8191, 9632,
+ -1452, -143, -40, -4095, -5663, -128, -76, 765,
+ 408, 900, 480, -4815, -135, -72, 726, 854,
+ -3236, 607, 1696, -2106, 11485, -639, -22, -175,
+ -270, -8051, 119, 335, -62, -416, 78, 218,
+ 2268, -425, -1189, 1476, 3203, -1903, -837, 9679,
+ 7057, -626, -221, -42, -5718, -3039, 372, 163,
+ -97, -1892, 1124, 494, -1380, 819, 360, -4169,
+ 213, -655, 17015, 620, -384, -2, -26, -17671,
+ -23, -9, 8, -221, 681, -8, 24, -644,
+ 5, -15, 399, 14, 5088, 35, -3339, 3726,
+ 8488, -1580, 0, -680, -847, -4397, -10, 1037,
+ 7, -1157, -8, 759, -2636, -18, 1730, -1930,
+ -988, 1454, -2688, 15039, 2682, -59, -129, -441,
+-13805, -439, 87, -162, 238, 907, -1335, 2467,
+ 161, -238, 440, -2462, -4865, -2842, -53, 5495,
+ 6523, -1445, -493, 0, -1843, -2597, -844, -16,
+ -9, 1632, 953, 18, 1937, 1131, 21, -2188,
+ 3076, 15069, -2914, 1810, -971, -577, -13860, -518,
+ -200, -57, -2829, 547, 2680, -339, -1665, 322,
+ 182, 893, -172, 107, 1311, 5355, 11054, 2299,
+ -3654, -105, -1750, -7458, -322, -814, -428, -885,
+ -3613, -184, -751, -1551, 292, 1194, 2465, 512,
+ 4035, 5619, 4618, 1815, 1912, -994, -1927, -1301,
+ -201, -223, -1384, -1137, -1583, -447, -622, -511,
+ -471, -656, -539, -211, -2131, 2754, -4501, 12879,
+ 7432, -277, -463, -1236, -10124, -3371, 358, -585,
+ 756, 1675, -2165, 3538, 967, -1249, 2042, -5842,
+ 5618, -515, 3219, -4149, 4857, -1926, -16, -632,
+ -1050, -1440, 176, -1104, 101, 1422, -130, 815,
+ -1666, 152, -954, 1230, 1838, -1709, 1139, 16867,
+ 716, -206, -178, -79, -17366, -31, 191, -127,
+ 118, -1892, 1759, -1173, -80, 74, -49, -737,
+ 1978, -3845, 10050, 11854, -2492, -238, -902, -6164,
+ -8576, -379, 464, -1213, 2358, -1431, 2782, -7271,
+ 301, -585, 1529, 1803, -2600, 11246, 11289, -3647,
+ 1463, -412, -7720, -7778, -812, -130, 1784, 1791,
+ -7749, -578, 2504, 2513, 232, -1004, -1008, 325,
+ 3442, 907, 2725, 8970, 3638, -723, -50, -453,
+ -4911, -808, -190, -572, -150, -1884, -496, -1492,
+ -764, -201, -605, -1992, -126, 17498, 3481, -2003,
+ 1090, 0, -18689, -739, -244, -72, 135, 26,
+ -3717, -15, 2139, 425, 8, -1165, -231, 133,
+ -1814, 1048, -2164, 4070, 16272, -200, -67, -285,
+ -1011, -16160, 116, -239, 138, 450, -260, 537,
+ 1801, -1041, 2149, -4042, 9354, 12580, -1883, 962,
+ -617, -5341, -9660, -216, -56, -23, -7183, 1075,
+ 1446, -549, -738, 110, 352, 474, -71, 36,
+ 1708, 4199, 7387, 6335, 1003, -178, -1076, -3330,
+ -2449, -61, -437, -770, -1893, -660, -1623, -2856,
+ -104, -257, -452, -388, -2624, 5623, 17310, -2353,
+ 592, -420, -1930, -18288, -338, -21, 900, 2772,
+ -5941, -376, 807, 2486, 94, -203, -625, 85,
+ 1211, -850, 1193, -1926, 15992, -89, -44, -86,
+ -226, -15609, 62, -88, 61, 142, -100, 140,
+ -1182, 830, -1165, 1880, 3983, -2054, 11506, -19,
+ 3622, -968, -257, -8080, 0, -801, 499, -2797,
+ 1442, 4, -2, 13, -880, 454, -2544, 4,
+ -786, -1354, 16092, 7246, -1665, -37, -111, -15805,
+ -3205, -169, -65, 772, 1330, 348, 599, -7117,
+ -80, -137, 1636, 736, -4316, -511, 6674, 11665,
+ 4633, -1137, -15, -2719, -8305, -1310, -134, 1758,
+ 208, 3073, 364, -4752, 1220, 144, -1887, -3299,
+ 7912, 4557, 1937, 1885, 7037, -3821, -1267, -229,
+ -216, -3022, -2200, -935, -538, -910, -524, -222,
+ -3398, -1957, -832, -809, 3434, 2967, 5867, 8196,
+ 8766, -720, -537, -2101, -4100, -4690, -622, -1230,
+ -1062, -1718, -1484, -2935, -1837, -1588, -3139, -4385,
+ 5881, 9176, 8119, 3934, 3355, -2111, -5139, -4023,
+ -944, -687, -3294, -2914, -4547, -1412, -2203, -1949,
+ -1204, -1879, -1662, -805
+};
+
+static const int16_t adaptive_cb_gain170[170 * 20] = {
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 776, 212, 715, 670,
+ 809, -36, -2, -31, -27, -39, -10, -33,
+ -9, -31, -8, -29, -38, -10, -35, -33,
+ 1296, 1316, -168, -320, -815, -102, -105, -1,
+ -6, -40, -104, 13, 13, 25, 25, -3,
+ 64, 65, -8, -15, -589, 680, 2478, 308,
+ -596, -21, -28, -375, -5, -21, 24, 89,
+ -102, 11, -12, -46, -21, 24, 90, 11,
+ -735, -487, -5, 2948, 468, -33, -14, 0,
+ -530, -13, -21, 0, 0, 132, 87, 0,
+ 21, 13, 0, -84, 1042, 1730, 1068, 333,
+ 626, -66, -182, -69, -6, -23, -110, -67,
+ -112, -21, -35, -21, -39, -66, -40, -12,
+ 486, -769, 4074, 2825, -1107, -14, -36, -1013,
+ -487, -74, 22, -120, 191, -83, 132, -702,
+ 32, -52, 275, 191, 1521, -767, -124, 4320,
+ 1026, -141, -35, 0, -1139, -64, 71, 11,
+ -5, -401, 202, 32, -95, 48, 7, -270,
+ 2425, 1267, 3439, -91, -1166, -359, -98, -722,
+ 0, -83, -187, -509, -266, 13, 7, 19,
+ 172, 90, 244, -6, -1251, 975, 173, 4039,
+ 2005, -95, -58, -1, -996, -245, 74, 13,
+ -10, 308, -240, -42, 153, -119, -21, -494,
+ 1820, 632, 1322, 2062, 1031, -202, -24, -106,
+ -259, -64, -70, -146, -51, -229, -79, -166,
+ -114, -39, -83, -129, -447, 4904, 244, -315,
+ -2038, -12, -1467, -3, -6, -253, 134, 6,
+ -73, -8, 94, 4, -55, 610, 30, -39,
+ -208, -1102, 463, -448, 5653, -2, -74, -13,
+ -12, -1950, -14, 5, 31, -5, -30, 12,
+ 71, 380, -159, 154, 4739, 2600, -1864, 856,
+ -1554, -1371, -412, -212, -44, -147, -752, 539,
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+};
commit c82807ae7c40b743f66a467bf52c04e78faa6edb
Author: Naufal <naufal11 at gmail.com>
Date: Mon Jun 21 14:24:47 2010 +0530
Initialize variables
diff --git a/libavcodec/g723_1.c b/libavcodec/g723_1.c
index bfac828..8c58b2c 100755
--- a/libavcodec/g723_1.c
+++ b/libavcodec/g723_1.c
@@ -343,7 +343,7 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
int16_t temp_vector[FRAME_LEN + PITCH_MAX];
int16_t *vector_ptr;
int16_t interp_gain;
- int bad_frame, erased_frames, i;
+ int bad_frame = 0, erased_frames = 0, i;
if (!buf_size || buf_size < frame_size[buf[0] & 3]) {
*data_size = 0;
-----------------------------------------------------------------------
Summary of changes:
libavcodec/g723_1.c | 51 ++++-
libavcodec/g723_1_data.h | 645 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 695 insertions(+), 1 deletions(-)
--
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