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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "config.h"
#include "mp_msg.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
struct vf_priv_s {
int csp;
};
//===========================================================================//
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
return vf_next_config(vf, width, height, d_width, d_height, flags, outfmt);
}
static inline int clamp_y(int x){
return (x > 235) ? 235 : (x < 16) ? 16 : x;
}
static inline int clamp_c(int x){
return (x > 240) ? 240 : (x < 16) ? 16 : x;
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
int i,j;
uint8_t *y_in, *cb_in, *cr_in;
uint8_t *y_out, *cb_out, *cr_out;
vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->width, mpi->height);
y_in = mpi->planes[0];
cb_in = mpi->planes[1];
cr_in = mpi->planes[2];
y_out = vf->dmpi->planes[0];
cb_out = vf->dmpi->planes[1];
cr_out = vf->dmpi->planes[2];
for (i = 0; i < mpi->height; i++)
for (j = 0; j < mpi->width; j++)
y_out[i*vf->dmpi->stride[0]+j] = clamp_y(y_in[i*mpi->stride[0]+j]);
for (i = 0; i < mpi->chroma_height; i++)
for (j = 0; j < mpi->chroma_width; j++)
{
cb_out[i*vf->dmpi->stride[1]+j] = clamp_c(cb_in[i*mpi->stride[1]+j]);
cr_out[i*vf->dmpi->stride[2]+j] = clamp_c(cr_in[i*mpi->stride[2]+j]);
}
return vf_next_put_image(vf,vf->dmpi, pts);
}
//===========================================================================//
static void uninit(struct vf_instance_s* vf){
free(vf->priv);
}
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
switch(fmt){
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
return 1;
}
return 0;
}
static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->put_image=put_image;
// vf->uninit=uninit;
vf->query_format=query_format;
// vf->priv=calloc(1, sizeof(struct vf_priv_s));
// if (args)
// vf->priv->csp = atoi(args);
return 1;
}
vf_info_t vf_info_yuvcsp = {
"yuv colorspace converter",
"yuvcsp",
"Alex Beregszaszi",
"",
open,
NULL
};
//===========================================================================//
|
