FFmpeg
hqxdsp.h
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1 /*
2  * HQX DSP routines
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * HQX DSP routines
24  */
25 
26 #ifndef AVCODEC_HQXDSP_H
27 #define AVCODEC_HQXDSP_H
28 
29 #include <stddef.h>
30 #include <stdint.h>
31 
32 typedef struct HQXDSPContext {
33  void (*idct_put)(uint16_t *dst, ptrdiff_t stride,
34  int16_t *block, const uint8_t *quant);
36 
38 
39 #endif /* AVCODEC_HQXDSP_H */
The exact code depends on how similar the blocks are and how related they are to the block
uint8_t
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
void ff_hqxdsp_init(HQXDSPContext *c)
Definition: hqxdsp.c:128
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
const uint8_t * quant
void(* idct_put)(uint16_t *dst, ptrdiff_t stride, int16_t *block, const uint8_t *quant)
Definition: hqxdsp.h:33
#define stride