FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/ttadsp.c
Date: 2024-07-24 19:24:46
Exec Total Coverage
Lines: 26 26 100.0%
Functions: 2 2 100.0%
Branches: 4 4 100.0%

Line Branch Exec Source
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 "libavutil/attributes.h"
20 #include "ttadsp.h"
21 #include "config.h"
22
23 3468450 static void tta_filter_process_c(int32_t *qmi, int32_t *dx, int32_t *dl,
24 int32_t *error, int32_t *in, int32_t shift,
25 int32_t round)
26 {
27 3468450 uint32_t *qm = qmi;
28
29
2/2
✓ Branch 0 taken 1481535 times.
✓ Branch 1 taken 1986915 times.
3468450 if (*error < 0) {
30 1481535 qm[0] -= dx[0]; qm[1] -= dx[1]; qm[2] -= dx[2]; qm[3] -= dx[3];
31 1481535 qm[4] -= dx[4]; qm[5] -= dx[5]; qm[6] -= dx[6]; qm[7] -= dx[7];
32
2/2
✓ Branch 0 taken 1521429 times.
✓ Branch 1 taken 465486 times.
1986915 } else if (*error > 0) {
33 1521429 qm[0] += dx[0]; qm[1] += dx[1]; qm[2] += dx[2]; qm[3] += dx[3];
34 1521429 qm[4] += dx[4]; qm[5] += dx[5]; qm[6] += dx[6]; qm[7] += dx[7];
35 }
36
37 3468450 round += dl[0] * qm[0] + dl[1] * qm[1] + dl[2] * qm[2] + dl[3] * qm[3] +
38 3468450 dl[4] * qm[4] + dl[5] * qm[5] + dl[6] * qm[6] + dl[7] * qm[7];
39
40 3468450 dx[0] = dx[1]; dx[1] = dx[2]; dx[2] = dx[3]; dx[3] = dx[4];
41 3468450 dl[0] = dl[1]; dl[1] = dl[2]; dl[2] = dl[3]; dl[3] = dl[4];
42
43 3468450 dx[4] = ((dl[4] >> 30) | 1);
44 3468450 dx[5] = ((dl[5] >> 30) | 2) & ~1;
45 3468450 dx[6] = ((dl[6] >> 30) | 2) & ~1;
46 3468450 dx[7] = ((dl[7] >> 30) | 4) & ~3;
47
48 3468450 *error = *in;
49 3468450 *in += (round >> shift);
50
51 3468450 dl[4] = -(unsigned)dl[5]; dl[5] = -(unsigned)dl[6];
52 3468450 dl[6] = *in -(unsigned)dl[7]; dl[7] = *in;
53 3468450 dl[5] += (unsigned)dl[6]; dl[4] += (unsigned)dl[5];
54 3468450 }
55
56 24 av_cold void ff_ttadsp_init(TTADSPContext *c)
57 {
58 24 c->filter_process = tta_filter_process_c;
59
60 #if ARCH_X86
61 24 ff_ttadsp_init_x86(c);
62 #endif
63 24 }
64