Libav
idctdsp.h
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1 /*
2  * This file is part of Libav.
3  *
4  * Libav 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  *
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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 Libav; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_IDCTDSP_H
20 #define AVCODEC_IDCTDSP_H
21 
22 #include <stdint.h>
23 
24 #include "avcodec.h"
25 
29 typedef struct ScanTable {
33 } ScanTable;
34 
42 };
43 
44 void ff_init_scantable(uint8_t *permutation, ScanTable *st,
45  const uint8_t *src_scantable);
46 void ff_init_scantable_permutation(uint8_t *idct_permutation,
47  enum idct_permutation_type perm_type);
48 int ff_init_scantable_permutation_x86(uint8_t *idct_permutation,
49  enum idct_permutation_type perm_type);
50 
51 typedef struct IDCTDSPContext {
52  /* pixel ops : interface with DCT */
53  void (*put_pixels_clamped)(const int16_t *block /* align 16 */,
54  uint8_t *pixels /* align 8 */,
55  int line_size);
56  void (*put_signed_pixels_clamped)(const int16_t *block /* align 16 */,
57  uint8_t *pixels /* align 8 */,
58  int line_size);
59  void (*add_pixels_clamped)(const int16_t *block /* align 16 */,
60  uint8_t *pixels /* align 8 */,
61  int line_size);
62 
63  void (*idct)(int16_t *block /* align 16 */);
64 
70  void (*idct_put)(uint8_t *dest /* align 8 */,
71  int line_size, int16_t *block /* align 16 */);
72 
77  void (*idct_add)(uint8_t *dest /* align 8 */,
78  int line_size, int16_t *block /* align 16 */);
79 
97 
99 
101  unsigned high_bit_depth);
103  unsigned high_bit_depth);
105  unsigned high_bit_depth);
106 
107 #endif /* AVCODEC_IDCTDSP_H */
void ff_idctdsp_init_x86(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
Definition: idctdsp_init.c:61
int ff_init_scantable_permutation_x86(uint8_t *idct_permutation, enum idct_permutation_type perm_type)
Definition: idctdsp_init.c:42
idct_permutation_type
Definition: idctdsp.h:35
void ff_idctdsp_init(IDCTDSPContext *c, AVCodecContext *avctx)
Definition: idctdsp.c:156
Scantable.
Definition: idctdsp.h:29
void(* add_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size)
Definition: idctdsp.h:59
uint8_t raster_end[64]
Definition: idctdsp.h:32
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
uint8_t permutated[64]
Definition: idctdsp.h:31
void ff_idctdsp_init_arm(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
uint8_t
const uint8_t * scantable
Definition: idctdsp.h:30
void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable)
Definition: idctdsp.c:28
void(* idct_put)(uint8_t *dest, int line_size, int16_t *block)
block -> idct -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:70
void ff_init_scantable_permutation(uint8_t *idct_permutation, enum idct_permutation_type perm_type)
Definition: idctdsp.c:49
uint8_t idct_permutation[64]
IDCT input permutation.
Definition: idctdsp.h:94
Libavcodec external API header.
void ff_idctdsp_init_ppc(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
Definition: idctdsp.c:230
main external API structure.
Definition: avcodec.h:1050
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
void(* put_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size)
Definition: idctdsp.h:53
void(* put_signed_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size)
Definition: idctdsp.h:56
void(* idct)(int16_t *block)
Definition: idctdsp.h:63
enum idct_permutation_type perm_type
Definition: idctdsp.h:95
static int16_t block[64]
Definition: dct-test.c:88