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 |
|
2683394 |
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 |
|
2683394 |
uint32_t *qm = qmi; |
27 |
|
|
|
28 |
✓✓ |
2683394 |
if (*error < 0) { |
29 |
|
1192779 |
qm[0] -= dx[0]; qm[1] -= dx[1]; qm[2] -= dx[2]; qm[3] -= dx[3]; |
30 |
|
1192779 |
qm[4] -= dx[4]; qm[5] -= dx[5]; qm[6] -= dx[6]; qm[7] -= dx[7]; |
31 |
✓✓ |
1490615 |
} else if (*error > 0) { |
32 |
|
1209437 |
qm[0] += dx[0]; qm[1] += dx[1]; qm[2] += dx[2]; qm[3] += dx[3]; |
33 |
|
1209437 |
qm[4] += dx[4]; qm[5] += dx[5]; qm[6] += dx[6]; qm[7] += dx[7]; |
34 |
|
|
} |
35 |
|
|
|
36 |
|
2683394 |
round += dl[0] * qm[0] + dl[1] * qm[1] + dl[2] * qm[2] + dl[3] * qm[3] + |
37 |
|
2683394 |
dl[4] * qm[4] + dl[5] * qm[5] + dl[6] * qm[6] + dl[7] * qm[7]; |
38 |
|
|
|
39 |
|
2683394 |
dx[0] = dx[1]; dx[1] = dx[2]; dx[2] = dx[3]; dx[3] = dx[4]; |
40 |
|
2683394 |
dl[0] = dl[1]; dl[1] = dl[2]; dl[2] = dl[3]; dl[3] = dl[4]; |
41 |
|
|
|
42 |
|
2683394 |
dx[4] = ((dl[4] >> 30) | 1); |
43 |
|
2683394 |
dx[5] = ((dl[5] >> 30) | 2) & ~1; |
44 |
|
2683394 |
dx[6] = ((dl[6] >> 30) | 2) & ~1; |
45 |
|
2683394 |
dx[7] = ((dl[7] >> 30) | 4) & ~3; |
46 |
|
|
|
47 |
|
2683394 |
*error = *in; |
48 |
|
2683394 |
*in += (round >> shift); |
49 |
|
|
|
50 |
|
2683394 |
dl[4] = -dl[5]; dl[5] = -dl[6]; |
51 |
|
2683394 |
dl[6] = *in - dl[7]; dl[7] = *in; |
52 |
|
2683394 |
dl[5] += dl[6]; dl[4] += dl[5]; |
53 |
|
2683394 |
} |
54 |
|
|
|
55 |
|
20 |
av_cold void ff_ttadsp_init(TTADSPContext *c) |
56 |
|
|
{ |
57 |
|
20 |
c->filter_process = tta_filter_process_c; |
58 |
|
|
|
59 |
|
|
if (ARCH_X86) |
60 |
|
20 |
ff_ttadsp_init_x86(c); |
61 |
|
20 |
} |