aac5773f
 hucm
功能基本完成，接口待打磨
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/attributes.h"
#include "avcodec.h"
#include "dct.h"
#include "faandct.h"
#include "fdctdsp.h"
#include "config.h"
av_cold void ff_fdctdsp_init(FDCTDSPContext *c, AVCodecContext *avctx)
{
const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
if (avctx->bits_per_raw_sample == 10 || avctx->bits_per_raw_sample == 9) {
c->fdct = ff_jpeg_fdct_islow_10;
c->fdct248 = ff_fdct248_islow_10;
} else if (avctx->dct_algo == FF_DCT_FASTINT) {
c->fdct = ff_fdct_ifast;
c->fdct248 = ff_fdct_ifast248;
#if CONFIG_FAANDCT
} else if (avctx->dct_algo == FF_DCT_FAAN) {
c->fdct = ff_faandct;
c->fdct248 = ff_faandct248;
#endif /* CONFIG_FAANDCT */
} else {
c->fdct = ff_jpeg_fdct_islow_8; // slow/accurate/default
c->fdct248 = ff_fdct248_islow_8;
}
if (ARCH_PPC)
ff_fdctdsp_init_ppc(c, avctx, high_bit_depth);
if (ARCH_X86)
ff_fdctdsp_init_x86(c, avctx, high_bit_depth);
}
|
