FFmpeg
cavsdsp.h
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1 /*
2  * Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
3  * Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVCODEC_CAVSDSP_H
23 #define AVCODEC_CAVSDSP_H
24 
25 #include <stdint.h>
26 
27 #include "avcodec.h"
28 #include "qpeldsp.h"
29 
30 typedef struct CAVSDSPContext {
33  void (*cavs_filter_lv)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int tc, int bs1, int bs2);
34  void (*cavs_filter_lh)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int tc, int bs1, int bs2);
35  void (*cavs_filter_cv)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int tc, int bs1, int bs2);
36  void (*cavs_filter_ch)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int tc, int bs1, int bs2);
37  void (*cavs_idct8_add)(uint8_t *dst, int16_t *block, ptrdiff_t stride);
38  int idct_perm;
40 
43 
44 #endif /* AVCODEC_CAVSDSP_H */
#define tc
Definition: regdef.h:69
void(* cavs_idct8_add)(uint8_t *dst, int16_t *block, ptrdiff_t stride)
Definition: cavsdsp.h:37
The exact code depends on how similar the blocks are and how related they are to the block
uint8_t
void(* cavs_filter_cv)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int tc, int bs1, int bs2)
Definition: cavsdsp.h:35
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
quarterpel DSP functions
void(* cavs_filter_ch)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int tc, int bs1, int bs2)
Definition: cavsdsp.h:36
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
qpel_mc_func put_cavs_qpel_pixels_tab[2][16]
Definition: cavsdsp.h:31
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
Libavcodec external API header.
static const int16_t alpha[]
Definition: ilbcdata.h:55
main external API structure.
Definition: avcodec.h:1621
void(* cavs_filter_lv)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int tc, int bs1, int bs2)
Definition: cavsdsp.h:33
void ff_cavsdsp_init_x86(CAVSDSPContext *c, AVCodecContext *avctx)
Definition: cavsdsp.c:429
int idct_perm
Definition: cavsdsp.h:38
qpel_mc_func avg_cavs_qpel_pixels_tab[2][16]
Definition: cavsdsp.h:32
void ff_cavsdsp_init(CAVSDSPContext *c, AVCodecContext *avctx)
Definition: cavsdsp.c:551
void(* cavs_filter_lh)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int tc, int bs1, int bs2)
Definition: cavsdsp.h:34
#define stride