GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/g722dsp.c Lines: 30 30 100.0 %
Date: 2019-11-20 04:07:19 Branches: 0 0 - %

Line Branch Exec Source
1
/*
2
 * Copyright (c) 2015 Peter Meerwald <pmeerw@pmeerw.net>
3
 *
4
 * This file is part of FFmpeg.
5
 *
6
 * FFmpeg is free software; you can redistribute it and/or
7
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9
 * version 2.1 of the License, or (at your option) any later version.
10
 *
11
 * FFmpeg is distributed in the hope that it will be useful,
12
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
 * Lesser General Public License for more details.
15
 *
16
 * You should have received a copy of the GNU Lesser General Public
17
 * License along with FFmpeg; if not, write to the Free Software
18
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
 */
20
21
#include "g722dsp.h"
22
#include "mathops.h"
23
24
/*
25
 * quadrature mirror filter (QMF) coefficients (ITU-T G.722 Table 11) inlined
26
 * in code below: 3, -11, 12, 32, -210, 951, 3876, -805, 362, -156, 53, -11
27
 */
28
29
269326
static void g722_apply_qmf(const int16_t *prev_samples, int xout[2])
30
{
31
269326
    xout[1] = MUL16(*prev_samples++, 3);
32
269326
    xout[0] = MUL16(*prev_samples++, -11);
33
34
269326
    MAC16(xout[1], *prev_samples++, -11);
35
269326
    MAC16(xout[0], *prev_samples++, 53);
36
37
269326
    MAC16(xout[1], *prev_samples++, 12);
38
269326
    MAC16(xout[0], *prev_samples++, -156);
39
40
269326
    MAC16(xout[1], *prev_samples++, 32);
41
269326
    MAC16(xout[0], *prev_samples++, 362);
42
43
269326
    MAC16(xout[1], *prev_samples++, -210);
44
269326
    MAC16(xout[0], *prev_samples++, -805);
45
46
269326
    MAC16(xout[1], *prev_samples++, 951);
47
269326
    MAC16(xout[0], *prev_samples++, 3876);
48
49
269326
    MAC16(xout[1], *prev_samples++, 3876);
50
269326
    MAC16(xout[0], *prev_samples++, 951);
51
52
269326
    MAC16(xout[1], *prev_samples++, -805);
53
269326
    MAC16(xout[0], *prev_samples++, -210);
54
55
269326
    MAC16(xout[1], *prev_samples++, 362);
56
269326
    MAC16(xout[0], *prev_samples++, 32);
57
58
269326
    MAC16(xout[1], *prev_samples++, -156);
59
269326
    MAC16(xout[0], *prev_samples++, 12);
60
61
269326
    MAC16(xout[1], *prev_samples++, 53);
62
269326
    MAC16(xout[0], *prev_samples++, -11);
63
64
269326
    MAC16(xout[1], *prev_samples++, -11);
65
269326
    MAC16(xout[0], *prev_samples++, 3);
66
269326
}
67
68
18
av_cold void ff_g722dsp_init(G722DSPContext *c)
69
{
70
18
    c->apply_qmf = g722_apply_qmf;
71
72
    if (ARCH_ARM)
73
        ff_g722dsp_init_arm(c);
74
    if (ARCH_X86)
75
18
        ff_g722dsp_init_x86(c);
76
18
}