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Diffstat (limited to 'src/plugins/ffmpeg/libavcodec/ac3tab.c')
-rw-r--r--src/plugins/ffmpeg/libavcodec/ac3tab.c262
1 files changed, 0 insertions, 262 deletions
diff --git a/src/plugins/ffmpeg/libavcodec/ac3tab.c b/src/plugins/ffmpeg/libavcodec/ac3tab.c
deleted file mode 100644
index 66afcd4..0000000
--- a/src/plugins/ffmpeg/libavcodec/ac3tab.c
+++ /dev/null
@@ -1,262 +0,0 @@
1/*
2 * AC3 tables
3 * copyright (c) 2001 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file ac3tab.c
24 * tables taken directly from AC3 spec.
25 */
26
27#include "ac3tab.h"
28
29/**
30 * Possible frame sizes.
31 * from ATSC A/52 Table 5.18 Frame Size Code Table.
32 */
33const uint16_t ff_ac3_frame_size_tab[38][3] = {
34 { 64, 69, 96 },
35 { 64, 70, 96 },
36 { 80, 87, 120 },
37 { 80, 88, 120 },
38 { 96, 104, 144 },
39 { 96, 105, 144 },
40 { 112, 121, 168 },
41 { 112, 122, 168 },
42 { 128, 139, 192 },
43 { 128, 140, 192 },
44 { 160, 174, 240 },
45 { 160, 175, 240 },
46 { 192, 208, 288 },
47 { 192, 209, 288 },
48 { 224, 243, 336 },
49 { 224, 244, 336 },
50 { 256, 278, 384 },
51 { 256, 279, 384 },
52 { 320, 348, 480 },
53 { 320, 349, 480 },
54 { 384, 417, 576 },
55 { 384, 418, 576 },
56 { 448, 487, 672 },
57 { 448, 488, 672 },
58 { 512, 557, 768 },
59 { 512, 558, 768 },
60 { 640, 696, 960 },
61 { 640, 697, 960 },
62 { 768, 835, 1152 },
63 { 768, 836, 1152 },
64 { 896, 975, 1344 },
65 { 896, 976, 1344 },
66 { 1024, 1114, 1536 },
67 { 1024, 1115, 1536 },
68 { 1152, 1253, 1728 },
69 { 1152, 1254, 1728 },
70 { 1280, 1393, 1920 },
71 { 1280, 1394, 1920 },
72};
73
74/**
75 * Maps audio coding mode (acmod) to number of full-bandwidth channels.
76 * from ATSC A/52 Table 5.8 Audio Coding Mode
77 */
78const uint8_t ff_ac3_channels_tab[8] = {
79 2, 1, 2, 3, 3, 4, 4, 5
80};
81
82/* possible frequencies */
83const uint16_t ff_ac3_sample_rate_tab[3] = { 48000, 44100, 32000 };
84
85/* possible bitrates */
86const uint16_t ff_ac3_bitrate_tab[19] = {
87 32, 40, 48, 56, 64, 80, 96, 112, 128,
88 160, 192, 224, 256, 320, 384, 448, 512, 576, 640
89};
90
91/* AC3 MDCT window */
92
93/* MDCT window */
94const int16_t ff_ac3_window[256] = {
95 4, 7, 12, 16, 21, 28, 34, 42,
96 51, 61, 72, 84, 97, 111, 127, 145,
97 164, 184, 207, 231, 257, 285, 315, 347,
98 382, 419, 458, 500, 544, 591, 641, 694,
99 750, 810, 872, 937, 1007, 1079, 1155, 1235,
100 1318, 1406, 1497, 1593, 1692, 1796, 1903, 2016,
101 2132, 2253, 2379, 2509, 2644, 2783, 2927, 3076,
102 3230, 3389, 3552, 3721, 3894, 4072, 4255, 4444,
103 4637, 4835, 5038, 5246, 5459, 5677, 5899, 6127,
104 6359, 6596, 6837, 7083, 7334, 7589, 7848, 8112,
105 8380, 8652, 8927, 9207, 9491, 9778,10069,10363,
10610660,10960,11264,11570,11879,12190,12504,12820,
10713138,13458,13780,14103,14427,14753,15079,15407,
10815735,16063,16392,16720,17049,17377,17705,18032,
10918358,18683,19007,19330,19651,19970,20287,20602,
11020914,21225,21532,21837,22139,22438,22733,23025,
11123314,23599,23880,24157,24430,24699,24964,25225,
11225481,25732,25979,26221,26459,26691,26919,27142,
11327359,27572,27780,27983,28180,28373,28560,28742,
11428919,29091,29258,29420,29577,29729,29876,30018,
11530155,30288,30415,30538,30657,30771,30880,30985,
11631086,31182,31274,31363,31447,31528,31605,31678,
11731747,31814,31877,31936,31993,32046,32097,32145,
11832190,32232,32272,32310,32345,32378,32409,32438,
11932465,32490,32513,32535,32556,32574,32592,32608,
12032623,32636,32649,32661,32671,32681,32690,32698,
12132705,32712,32718,32724,32729,32733,32737,32741,
12232744,32747,32750,32752,32754,32756,32757,32759,
12332760,32761,32762,32763,32764,32764,32765,32765,
12432766,32766,32766,32766,32767,32767,32767,32767,
12532767,32767,32767,32767,32767,32767,32767,32767,
12632767,32767,32767,32767,32767,32767,32767,32767,
127};
128
129const uint8_t ff_ac3_log_add_tab[260]= {
1300x40,0x3f,0x3e,0x3d,0x3c,0x3b,0x3a,0x39,0x38,0x37,
1310x36,0x35,0x34,0x34,0x33,0x32,0x31,0x30,0x2f,0x2f,
1320x2e,0x2d,0x2c,0x2c,0x2b,0x2a,0x29,0x29,0x28,0x27,
1330x26,0x26,0x25,0x24,0x24,0x23,0x23,0x22,0x21,0x21,
1340x20,0x20,0x1f,0x1e,0x1e,0x1d,0x1d,0x1c,0x1c,0x1b,
1350x1b,0x1a,0x1a,0x19,0x19,0x18,0x18,0x17,0x17,0x16,
1360x16,0x15,0x15,0x15,0x14,0x14,0x13,0x13,0x13,0x12,
1370x12,0x12,0x11,0x11,0x11,0x10,0x10,0x10,0x0f,0x0f,
1380x0f,0x0e,0x0e,0x0e,0x0d,0x0d,0x0d,0x0d,0x0c,0x0c,
1390x0c,0x0c,0x0b,0x0b,0x0b,0x0b,0x0a,0x0a,0x0a,0x0a,
1400x0a,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x08,
1410x08,0x08,0x07,0x07,0x07,0x07,0x07,0x07,0x06,0x06,
1420x06,0x06,0x06,0x06,0x06,0x06,0x05,0x05,0x05,0x05,
1430x05,0x05,0x05,0x05,0x04,0x04,0x04,0x04,0x04,0x04,
1440x04,0x04,0x04,0x04,0x04,0x03,0x03,0x03,0x03,0x03,
1450x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x02,
1460x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,
1470x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x01,0x01,
1480x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
1490x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
1500x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
1510x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
1520x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
1530x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
1540x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
1550x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
156};
157
158const uint16_t ff_ac3_hearing_threshold_tab[50][3]= {
159{ 0x04d0,0x04f0,0x0580 },
160{ 0x04d0,0x04f0,0x0580 },
161{ 0x0440,0x0460,0x04b0 },
162{ 0x0400,0x0410,0x0450 },
163{ 0x03e0,0x03e0,0x0420 },
164{ 0x03c0,0x03d0,0x03f0 },
165{ 0x03b0,0x03c0,0x03e0 },
166{ 0x03b0,0x03b0,0x03d0 },
167{ 0x03a0,0x03b0,0x03c0 },
168{ 0x03a0,0x03a0,0x03b0 },
169{ 0x03a0,0x03a0,0x03b0 },
170{ 0x03a0,0x03a0,0x03b0 },
171{ 0x03a0,0x03a0,0x03a0 },
172{ 0x0390,0x03a0,0x03a0 },
173{ 0x0390,0x0390,0x03a0 },
174{ 0x0390,0x0390,0x03a0 },
175{ 0x0380,0x0390,0x03a0 },
176{ 0x0380,0x0380,0x03a0 },
177{ 0x0370,0x0380,0x03a0 },
178{ 0x0370,0x0380,0x03a0 },
179{ 0x0360,0x0370,0x0390 },
180{ 0x0360,0x0370,0x0390 },
181{ 0x0350,0x0360,0x0390 },
182{ 0x0350,0x0360,0x0390 },
183{ 0x0340,0x0350,0x0380 },
184{ 0x0340,0x0350,0x0380 },
185{ 0x0330,0x0340,0x0380 },
186{ 0x0320,0x0340,0x0370 },
187{ 0x0310,0x0320,0x0360 },
188{ 0x0300,0x0310,0x0350 },
189{ 0x02f0,0x0300,0x0340 },
190{ 0x02f0,0x02f0,0x0330 },
191{ 0x02f0,0x02f0,0x0320 },
192{ 0x02f0,0x02f0,0x0310 },
193{ 0x0300,0x02f0,0x0300 },
194{ 0x0310,0x0300,0x02f0 },
195{ 0x0340,0x0320,0x02f0 },
196{ 0x0390,0x0350,0x02f0 },
197{ 0x03e0,0x0390,0x0300 },
198{ 0x0420,0x03e0,0x0310 },
199{ 0x0460,0x0420,0x0330 },
200{ 0x0490,0x0450,0x0350 },
201{ 0x04a0,0x04a0,0x03c0 },
202{ 0x0460,0x0490,0x0410 },
203{ 0x0440,0x0460,0x0470 },
204{ 0x0440,0x0440,0x04a0 },
205{ 0x0520,0x0480,0x0460 },
206{ 0x0800,0x0630,0x0440 },
207{ 0x0840,0x0840,0x0450 },
208{ 0x0840,0x0840,0x04e0 },
209};
210
211const uint8_t ff_ac3_bap_tab[64]= {
212 0, 1, 1, 1, 1, 1, 2, 2, 3, 3,
213 3, 4, 4, 5, 5, 6, 6, 6, 6, 7,
214 7, 7, 7, 8, 8, 8, 8, 9, 9, 9,
215 9, 10, 10, 10, 10, 11, 11, 11, 11, 12,
216 12, 12, 12, 13, 13, 13, 13, 14, 14, 14,
217 14, 14, 14, 14, 14, 15, 15, 15, 15, 15,
218 15, 15, 15, 15,
219};
220
221const uint8_t ff_ac3_slow_decay_tab[4]={
222 0x0f, 0x11, 0x13, 0x15,
223};
224
225const uint8_t ff_ac3_fast_decay_tab[4]={
226 0x3f, 0x53, 0x67, 0x7b,
227};
228
229const uint16_t ff_ac3_slow_gain_tab[4]= {
230 0x540, 0x4d8, 0x478, 0x410,
231};
232
233const uint16_t ff_ac3_db_per_bit_tab[4]= {
234 0x000, 0x700, 0x900, 0xb00,
235};
236
237const int16_t ff_ac3_floor_tab[8]= {
238 0x2f0, 0x2b0, 0x270, 0x230, 0x1f0, 0x170, 0x0f0, 0xf800,
239};
240
241const uint16_t ff_ac3_fast_gain_tab[8]= {
242 0x080, 0x100, 0x180, 0x200, 0x280, 0x300, 0x380, 0x400,
243};
244
245const uint8_t ff_ac3_critical_band_size_tab[50]={
246 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
247 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 3, 3, 3,
248 3, 6, 6, 6, 6, 6, 6, 12, 12, 12, 12, 24, 24, 24, 24, 24
249};
250/**
251 * Default channel map for a dependent substream defined by acmod
252 */
253const uint16_t ff_eac3_default_chmap[8] = {
254 AC3_CHMAP_L | AC3_CHMAP_R, // FIXME Ch1+Ch2
255 AC3_CHMAP_C,
256 AC3_CHMAP_L | AC3_CHMAP_R,
257 AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R,
258 AC3_CHMAP_L | AC3_CHMAP_R | AC3_CHMAP_C_SUR,
259 AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R | AC3_CHMAP_C_SUR,
260 AC3_CHMAP_L | AC3_CHMAP_R | AC3_CHMAP_L_SUR | AC3_CHMAP_R_SUR,
261 AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R | AC3_CHMAP_L_SUR | AC3_CHMAP_R_SUR
262};
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-08 01:21:55 +0000