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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*
* copyright (c) 2001 Fabrice Bellard
*
* 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
*/
#ifndef AVCODEC_H
#define AVCODEC_H
/* Just a heavily bastardized version of the original file from
* ffmpeg, just enough to get resample2.c to compile without
* modification -- Lennart */
#if !defined(PACKAGE) && defined(HAVE_CONFIG_H)
#include <config.h>
#endif
#include <sys/types.h>
#include <inttypes.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#define av_mallocz(l) calloc(1, (l))
#define av_malloc(l) malloc(l)
#define av_realloc(p,l) realloc((p),(l))
#define av_free(p) free(p)
static inline void av_freep(void *k) {
void **p = k;
if (p) {
free(*p);
*p = NULL;
}
}
static inline int av_clip(int a, int amin, int amax)
{
if (a < amin) return amin;
else if (a > amax) return amax;
else return a;
}
#define av_log(a,b,c)
#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
#define FFSIGN(a) ((a) > 0 ? 1 : -1)
#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
struct AVResampleContext;
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
void av_resample_close(struct AVResampleContext *c);
void av_build_filter(int16_t *filter, double factor, int tap_count, int phase_count, int scale, int type);
/*
* crude lrintf for non-C99 systems.
*/
#ifndef HAVE_LRINTF
#define lrintf(x) ((long int)(x))
#endif
#endif /* AVCODEC_H */
|
