FFmpeg
mpegvideodata.c
Go to the documentation of this file.
1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include <stdint.h>
20 
21 const uint8_t ff_default_chroma_qscale_table[32] = {
22  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
23  16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
24 };
25 
26 const uint8_t ff_mpeg2_non_linear_qscale[32] = {
27  0, 1, 2, 3, 4, 5, 6, 7,
28  8, 10, 12, 14, 16, 18, 20, 22,
29  24, 28, 32, 36, 40, 44, 48, 52,
30  56, 64, 72, 80, 88, 96, 104, 112,
31 };
32 
33 const uint8_t ff_mpeg12_dc_scale_table[4][32] = {
34 {
35  8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
36  8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
37 },
38 {
39  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
40  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
41 },
42 {
43  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
44  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
45 },
46 {
47  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
48  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
49 },
50 };
51 
52 const uint8_t ff_alternate_horizontal_scan[64] = {
53  0, 1, 2, 3, 8, 9, 16, 17,
54  10, 11, 4, 5, 6, 7, 15, 14,
55  13, 12, 19, 18, 24, 25, 32, 33,
56  26, 27, 20, 21, 22, 23, 28, 29,
57  30, 31, 34, 35, 40, 41, 48, 49,
58  42, 43, 36, 37, 38, 39, 44, 45,
59  46, 47, 50, 51, 56, 57, 58, 59,
60  52, 53, 54, 55, 60, 61, 62, 63,
61 };
62 
63 const uint8_t ff_alternate_vertical_scan[64] = {
64  0, 8, 16, 24, 1, 9, 2, 10,
65  17, 25, 32, 40, 48, 56, 57, 49,
66  41, 33, 26, 18, 3, 11, 4, 12,
67  19, 27, 34, 42, 50, 58, 35, 43,
68  51, 59, 20, 28, 5, 13, 6, 14,
69  21, 29, 36, 44, 52, 60, 37, 45,
70  53, 61, 22, 30, 7, 15, 23, 31,
71  38, 46, 54, 62, 39, 47, 55, 63,
72 };
ff_mpeg2_non_linear_qscale
const uint8_t ff_mpeg2_non_linear_qscale[32]
Definition: mpegvideodata.c:26
ff_mpeg12_dc_scale_table
const uint8_t ff_mpeg12_dc_scale_table[4][32]
Definition: mpegvideodata.c:33
ff_alternate_horizontal_scan
const uint8_t ff_alternate_horizontal_scan[64]
Definition: mpegvideodata.c:52
ff_alternate_vertical_scan
const uint8_t ff_alternate_vertical_scan[64]
Definition: mpegvideodata.c:63
ff_default_chroma_qscale_table
const uint8_t ff_default_chroma_qscale_table[32]
Definition: mpegvideodata.c:21