annotate libgsmefr/window2.tab @ 183:452c1d5a6268

libgsmefr BFI w/o data: emit zero output after decoder reset In real-life usage, each EFR decoder session will most likely begin with lots of BFI frames before the first real frame arrives. However, because the spec-defined home state of the decoder is speech rather than CN, our regular logic for BFI w/o data would have to feed pseudorandom noise to the decoder (in the "fixed codebook excitation pulses" part), which is silly to do at the beginning of the decoder session right out of reset. Therefore, let's check reset_flag_old, and if we are still in the reset state, simply emit zero output.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 03 Jan 2023 00:12:18 +0000
parents 37e39cad5838
children
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41
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
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1 /* Hamming_cos window for LPC analysis. */
37e39cad5838 libgsmefr/*.tab: import from ETSI code
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2
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
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3 static const Word16 window_232_8[L_WINDOW] =
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
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4 {
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
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5 2621, 2623, 2627, 2634, 2644, 2656, 2671, 2689, 2710, 2734,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
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6 2760, 2789, 2821, 2855, 2893, 2933, 2975, 3021, 3069, 3120,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
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7 3173, 3229, 3288, 3350, 3414, 3481, 3550, 3622, 3697, 3774,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
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8 3853, 3936, 4021, 4108, 4198, 4290, 4385, 4482, 4582, 4684,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
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9 4788, 4895, 5004, 5116, 5230, 5346, 5464, 5585, 5708, 5833,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 5960, 6090, 6221, 6355, 6491, 6629, 6769, 6910, 7054, 7200,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 7348, 7498, 7649, 7803, 7958, 8115, 8274, 8434, 8597, 8761,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 8926, 9093, 9262, 9432, 9604, 9778, 9952, 10129, 10306, 10485,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 10665, 10847, 11030, 11214, 11399, 11586, 11773, 11962, 12152, 12342,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 12534, 12727, 12920, 13115, 13310, 13506, 13703, 13901, 14099, 14298,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 14497, 14698, 14898, 15100, 15301, 15504, 15706, 15909, 16112, 16316,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 16520, 16724, 16928, 17132, 17337, 17541, 17746, 17950, 18155, 18359,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 18564, 18768, 18972, 19175, 19379, 19582, 19785, 19987, 20189, 20390,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 20591, 20792, 20992, 21191, 21390, 21588, 21785, 21981, 22177, 22372,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 22566, 22759, 22951, 23143, 23333, 23522, 23710, 23897, 24083, 24268,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 24451, 24633, 24814, 24994, 25172, 25349, 25525, 25699, 25871, 26042,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 26212, 26380, 26546, 26711, 26874, 27035, 27195, 27353, 27509, 27664,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 27816, 27967, 28115, 28262, 28407, 28550, 28691, 28830, 28967, 29102,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 29234, 29365, 29493, 29619, 29743, 29865, 29985, 30102, 30217, 30330,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 30440, 30548, 30654, 30757, 30858, 30956, 31052, 31146, 31237, 31326,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 31412, 31495, 31576, 31655, 31730, 31804, 31874, 31942, 32008, 32071,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 32131, 32188, 32243, 32295, 32345, 32392, 32436, 32477, 32516, 32552,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 32585, 32615, 32643, 32668, 32690, 32709, 32726, 32740, 32751, 32759,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 32765, 32767, 32767, 32097, 30112, 26895, 22576, 17333, 11380, 4962
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
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29 };
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
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30
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
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31 /* Hamming-cosine window for LPC analysis. */
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
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32
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
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33 static const Word16 window_160_80[L_WINDOW] =
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
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34 {
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 2621, 2624, 2633, 2648, 2668, 2695, 2727, 2765, 2809, 2859,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 2915, 2976, 3043, 3116, 3194, 3279, 3368, 3464, 3565, 3671,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 3783, 3900, 4023, 4151, 4285, 4423, 4567, 4716, 4870, 5029,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 5193, 5362, 5535, 5714, 5897, 6084, 6277, 6473, 6674, 6880,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 7089, 7303, 7521, 7742, 7968, 8197, 8430, 8667, 8907, 9151,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 9398, 9648, 9902, 10158, 10417, 10680, 10945, 11212, 11482, 11755,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 12030, 12307, 12586, 12867, 13150, 13435, 13722, 14010, 14299, 14590,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 14882, 15175, 15469, 15764, 16060, 16356, 16653, 16950, 17248, 17546,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 17844, 18141, 18439, 18736, 19033, 19330, 19625, 19920, 20214, 20507,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 20799, 21090, 21380, 21668, 21954, 22239, 22522, 22803, 23083, 23360,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 23635, 23907, 24177, 24445, 24710, 24972, 25231, 25488, 25741, 25991,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 26238, 26482, 26722, 26959, 27192, 27422, 27647, 27869, 28087, 28300,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 28510, 28715, 28916, 29113, 29305, 29493, 29676, 29854, 30028, 30197,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 30361, 30519, 30673, 30822, 30966, 31105, 31238, 31366, 31489, 31606,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 31718, 31825, 31926, 32021, 32111, 32195, 32273, 32346, 32413, 32475,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 32530, 32580, 32624, 32662, 32695, 32721, 32742, 32756, 32765, 32767,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 32767, 32756, 32720, 32661, 32578, 32471, 32341, 32188, 32012, 31813,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 31592, 31349, 31084, 30798, 30492, 30165, 29818, 29453, 29068, 28666,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 28247, 27810, 27358, 26891, 26408, 25913, 25404, 24883, 24350, 23807,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 23255, 22693, 22124, 21548, 20965, 20378, 19786, 19191, 18593, 17994,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 17395, 16796, 16199, 15604, 15012, 14424, 13842, 13265, 12696, 12135,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 11582, 11039, 10507, 9986, 9477, 8981, 8499, 8031, 7579, 7143,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 6723, 6321, 5937, 5571, 5225, 4898, 4591, 4305, 4041, 3798,
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 3577, 3378, 3202, 3048, 2918, 2812, 2729, 2669, 2633, 2621
37e39cad5838 libgsmefr/*.tab: import from ETSI code
Mychaela Falconia <falcon@freecalypso.org>
parents:
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59 };