FFmpeg  2.6.3
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Modules Pages
xvididct_init.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 "config.h"
20 #include "libavutil/attributes.h"
21 #include "libavutil/cpu.h"
22 #include "libavutil/x86/cpu.h"
23 #include "libavcodec/idctdsp.h"
24 #include "libavcodec/xvididct.h"
25 
26 #include "idctdsp.h"
27 #include "xvididct.h"
28 
30  unsigned high_bit_depth)
31 {
32  int cpu_flags = av_get_cpu_flags();
33 
34  if (high_bit_depth ||
35  !(avctx->idct_algo == FF_IDCT_AUTO ||
36  avctx->idct_algo == FF_IDCT_XVID))
37  return;
38 
39  if (INLINE_MMX(cpu_flags)) {
44  }
45 
46  if (INLINE_MMXEXT(cpu_flags)) {
51  }
52 
53  if (INLINE_SSE2(cpu_flags)) {
58  }
59 }
void ff_xvid_idct_mmx_put(uint8_t *dest, int line_size, int16_t *block)
void ff_xvid_idct_mmxext_add(uint8_t *dest, int line_size, int16_t *block)
#define INLINE_SSE2(flags)
Definition: cpu.h:66
Macro definitions for various function/variable attributes.
void ff_xvid_idct_sse2_add(uint8_t *dest, int line_size, short *block)
#define av_cold
Definition: attributes.h:74
#define INLINE_MMX(flags)
Definition: cpu.h:63
void ff_xvid_idct_mmxext(short *block)
void ff_xvid_idct_mmxext_put(uint8_t *dest, int line_size, int16_t *block)
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:2683
void ff_xvid_idct_mmx(short *block)
void(* idct_add)(uint8_t *dest, int line_size, int16_t *block)
block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:77
av_cold void ff_xvid_idct_init_x86(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
Definition: xvididct_init.c:29
void(* idct_put)(uint8_t *dest, int line_size, int16_t *block)
block -> idct -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:70
#define FF_IDCT_AUTO
Definition: avcodec.h:2684
main external API structure.
Definition: avcodec.h:1239
void ff_xvid_idct_sse2_put(uint8_t *dest, int line_size, short *block)
void ff_xvid_idct_sse2(short *block)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:75
#define FF_IDCT_XVID
Definition: avcodec.h:2697
#define INLINE_MMXEXT(flags)
Definition: cpu.h:64
static double c[64]
header for Xvid IDCT functions
void ff_xvid_idct_mmx_add(uint8_t *dest, int line_size, int16_t *block)
enum idct_permutation_type perm_type
Definition: idctdsp.h:95
void(* idct)(int16_t *block)
Definition: idctdsp.h:63