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
|
#ifndef MPLAYER_SWS_UTILS_H
#define MPLAYER_SWS_UTILS_H
#include <stdbool.h>
#include "mp_image.h"
struct mp_image;
struct mp_csp_details;
// libswscale currently requires 16 bytes alignment for row pointers and
// strides. Otherwise, it will print warnings and use slow codepaths.
// Guaranteed to be a power of 2 and > 1.
#define SWS_MIN_BYTE_ALIGN 16
extern const int mp_sws_hq_flags;
extern const int mp_sws_fast_flags;
bool mp_sws_supported_format(int imgfmt);
void mp_image_swscale(struct mp_image *dst, struct mp_image *src,
int my_sws_flags);
void mp_image_sw_blur_scale(struct mp_image *dst, struct mp_image *src,
float gblur);
struct mp_sws_context {
// User configuration. These can be changed freely, at any time.
// mp_sws_scale() will handle the changes transparently.
int flags;
int brightness, contrast, saturation;
bool force_reload;
// These are also implicitly set by mp_sws_scale(), and thus optional.
// Setting them before that call makes sense when using mp_sws_reinit().
struct mp_image_params src, dst;
// Changing these requires setting force_reload=true.
// By default, they are NULL.
// Freeing the mp_sws_context will deallocate these if set.
struct SwsFilter *src_filter, *dst_filter;
double params[2];
// Cached context (if any)
struct SwsContext *sws;
// Contains parameters for which sws is valid
struct mp_sws_context *cached;
};
struct mp_sws_context *mp_sws_alloc(void *talloc_parent);
int mp_sws_reinit(struct mp_sws_context *ctx);
void mp_sws_set_from_cmdline(struct mp_sws_context *ctx);
int mp_sws_scale(struct mp_sws_context *ctx, struct mp_image *dst,
struct mp_image *src);
#endif /* MP_SWS_UTILS_H */
// vim: ts=4 sw=4 et tw=80
|
