aboutsummaryrefslogtreecommitdiffhomepage
path: root/libmpcodecs/vf_tile.c
blob: 8fc4b702fc8451a1c3e2dd26adf43e8f93672672 (plain)
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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
/*
 * vf_tile.c - filter to tile a serie of image in a single, bigger, image
 *
 * The parameters are:
 *
 *    xtile:  number of tile on the x axis (5)
 *    ytile:  number of tile on the y axis (5)
 *    xytile: when write the image, it can be different then xtile * ytile
 *            (for example you can write 8 * 7 tile, writing the file every
 *            50 frame, to have one image every 2 seconds @ 25 fps ).
 *    start:  pixel at the start (x/y), default 2
 *    delta:  pixel between 2 tile, (x/y), default 4
 *
 * For example a valid command line is:
 *    ... -vf tile=10:5:-1:4:8 ...
 * that make images of 10 * 5 tiles, with 4 pixel at the beginning and
 * 8 pixel between tiles.
 *
 * The default command is:
 *    ... -vf tile=5:5:25:2:4
 *
 * If you omit a parameter or put a value less then 0, the default is used.
 *    ... -vf tile=10:5::-1:10
 *
 * You can also stop when you're ok
 *    ... -vf tile=10:5
 * (and this is probably the option you will use more often ...)
 *
 * Probably is good to put the scale filter before the tile :-)
 *
 *     Daniele Forghieri ( guru@digitalfantasy.it )
 */

// strtoi memcpy_pic

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "cpudetect.h"

#include "img_format.h"
#include "mp_image.h"
#include "vf.h"

#include "libvo/fastmemcpy.h"

/* private data */
struct vf_priv_s {
    /* configuration data */
    /* Number on hor/ver tiles */
    int  xtile;
    int  ytile;
    /* When write the whole frame (default = xtile * ytile) */
    int  xytile;
    /* pixel at start / end (default = 4) */
    int  start;
    /* pixel between image (default = 2) */
    int  delta;
//    /* Background color, in destination format */
//    int  bkgSet;

    /* Work data */
    int  frame_cur;
};


static int config(struct vf_instance_s* vf,
                  int width, int height, int d_width, int d_height,
	          unsigned int flags, unsigned int outfmt){

    struct vf_priv_s  *priv;
    int               xw;
    int               yh;

    /* Calculate new destination size */
    priv = vf->priv;
    xw = priv->start * 2 +
        priv->xtile * width +
        (priv->xtile - 1) * priv->delta;
    yh = priv->start * 2 +
        priv->ytile * height +
        (priv->ytile - 1) * priv->delta;

    mp_msg(MSGT_VFILTER,MSGL_V,"vf_tile:config size set to %d * %d\n", xw, yh);

    return vf_next_config(vf, xw, yh, xw, yh, flags, outfmt);
}

/* Filter handler */
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts)
{
    mp_image_t        *dmpi;
    struct vf_priv_s  *priv;
    int               t;
    int               xw;
    int               yh;
    int               xi;
    int               yi;
    int               by;
    int               dw;

    /* Calculate new size */
    priv = vf->priv;
    xw = priv->start * 2 +
        priv->xtile * mpi->w +
        (priv->xtile - 1) * priv->delta;
    yh = priv->start * 2 +
        priv->ytile * mpi->h+
        (priv->ytile - 1) * priv->delta;

    /* Get the big image! */
    dmpi=vf_get_image(vf->next, mpi->imgfmt,
                      MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE,
                      xw, yh);

    /* bytes x pixel & bytes x line */
    if (mpi->flags & MP_IMGFLAG_PLANAR) {
        by = 1;
        dw = mpi->w;
    }
    else {
        by = (mpi->bpp + 7) / 8;
        dw = mpi->w * by;
    }
    /* Index position */
    t = priv->frame_cur % priv->xytile;
//    if ((t == 0) && (bkg != 0)) {
//        /* First frame, delete the background */
//
//    }

    /* Position of image */
    xi = priv->start + (mpi->w + priv->delta) * (t % priv->xtile);
    yi = priv->start + (mpi->h + priv->delta) * (t / priv->xtile);

    /* Copy first (or only) plane */
    memcpy_pic( dmpi->planes[0] + xi * by + yi * dmpi->stride[0],
                mpi->planes[0],
                dw,
                mpi->h,
                dmpi->stride[0],
                mpi->stride[0]);

    if (mpi->flags & MP_IMGFLAG_PLANAR) {
        /* Copy the other 2 planes */
        memcpy_pic( dmpi->planes[1] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[1],
                    mpi->planes[1],
                    mpi->chroma_width,
                    mpi->chroma_height,
                    dmpi->stride[1],
                    mpi->stride[1]);
         memcpy_pic( dmpi->planes[2] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[2],
                    mpi->planes[2],
                    mpi->chroma_width,
                    mpi->chroma_height,
                    dmpi->stride[2],
                    mpi->stride[2]);
    }

    /* Increment current frame */
    ++priv->frame_cur;

    if (t == priv->xytile - 1)  {
        /* Display the composition */
        dmpi->width  = xw;
        dmpi->height = yh;
        return vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
    }
    else {
        /* Skip the frame */
        return 0;
    }
}

static void uninit(struct vf_instance_s* vf)
{
    /* free local data */
    free(vf->priv);
}

/* rgb/bgr 15->32 supported & some Yxxx */
static int query_format(struct vf_instance_s* vf, unsigned int fmt)
{
	switch (fmt) {
        /* rgb 15 -> 32 bit */
        case IMGFMT_RGB15:
	case IMGFMT_RGB16:
	case IMGFMT_RGB24:
        case IMGFMT_RGB32:
        /* bgr 15 -> 32 bit */
	case IMGFMT_BGR15:
	case IMGFMT_BGR16:
	case IMGFMT_BGR24:
        case IMGFMT_BGR32:
        /* Various Yxxx Formats */
        case IMGFMT_444P:
        case IMGFMT_422P:
        case IMGFMT_411P:
        case IMGFMT_YUY2:
        case IMGFMT_YV12:
        case IMGFMT_I420:
        case IMGFMT_YVU9:
        case IMGFMT_IF09:
        case IMGFMT_IYUV:
		return vf_next_query_format(vf, fmt);
	}
	return 0;
}

/* Get an integer from the string pointed by s, adjusting s.
 * If the value is less then 0 def_val is used.
 * Return 0 for ok
 *
 * Look below ( in open(...) ) for a use ...
 */
static int parse_int(char **s, int *rt, int def_val)
{

    int     t = 0;

    if (**s) {
        /* Get value (dec, hex or octal) */
        t = strtol( *s, s, 0 );

        /* Use default */
        if (t < 0) {
            t = def_val;
        }

        if (**s == ':') {
            /* Point to next character (problably a digit) */
            ++(*s);
        }
        else if (**s != '\0') {
            /* Error, we got some wrong char */
            return 1;
        }
    }
    else {
        t = def_val;
    }

    *rt = t;
    return 0;

}

/* Main entry funct for the filter */
static int open(vf_instance_t *vf, char* args)
{
    struct vf_priv_s *p;
    int              er;

    vf->put_image    = put_image;
    vf->query_format = query_format;
    vf->config       = config;
    vf->uninit       = uninit;
    vf->default_reqs = VFCAP_ACCEPT_STRIDE;
    /* Private data */
    vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
    if (p == NULL) {
        return 0;
    }

    if (args == NULL) {
        /* Use the default */
        args = "";
    }
    /* Parse all the arguments */
    er =  parse_int( &args, &p->xtile,  5 );
    er |= parse_int( &args, &p->ytile,  5 );
    er |= parse_int( &args, &p->xytile, 0 );
    er |= parse_int( &args, &p->start,  2 );
    er |= parse_int( &args, &p->delta,  4 );
//    er |= parse_int( &args, &p->bkgSet, 0 );

    if (er) {
        mp_msg(MSGT_VFILTER, MSGL_ERR, MSGTR_MPCODECS_ErrorParsingArgument);
        return 0;
    }
    /* Load some default */
    if ((p->xytile <= 0) || (p->xytile > p->xtile * p->ytile)) {
        p->xytile = p->xtile * p->ytile;
    }

    /* Say what happen: use mp_msg(...)? */
    if ( mp_msg_test(MSGT_VFILTER,MSGL_V) ) {
        printf("vf_tile: tiling %d * %d, output every %d frames\n",
               p->xtile,
               p->ytile,
               p->xytile);
        printf("vf_tile: start pixel %d, delta pixel %d\n",
               p->start,
               p->delta);
//      printf("vf_tile: background 0x%x\n",
//             p->bkgSet);
    }
    return 1;
}

const vf_info_t vf_info_tile = {
    "Make a single image tiling x/y images",
    "tile",
    "Daniele Forghieri",
    "",
    open,
    NULL
};