aboutsummaryrefslogtreecommitdiffstats
path: root/libavfilter/vf_fillborders.c
blob: 134458702d88693eafde20fb6c01c3503c7d11f4 (plain) (blame)
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
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
/*
 * Copyright (c) 2017 Paul B Mahol
 *
 * 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
 */

#include "libavutil/colorspace.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

enum { Y, U, V, A };
enum { R, G, B };

enum FillMode { FM_SMEAR, FM_MIRROR, FM_FIXED, FM_NB_MODES };

typedef struct Borders {
    int left, right, top, bottom;
} Borders;

typedef struct FillBordersContext {
    const AVClass *class;
    int left, right, top, bottom;
    int mode;

    int nb_planes;
    int depth;
    Borders borders[4];
    int planewidth[4];
    int planeheight[4];
    uint8_t fill[4];
    uint8_t yuv_color[4];
    uint8_t rgba_color[4];

    void (*fillborders)(struct FillBordersContext *s, AVFrame *frame);
} FillBordersContext;

static int query_formats(AVFilterContext *ctx)
{
    static const enum AVPixelFormat pix_fmts[] = {
        AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
        AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
        AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
        AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
        AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
        AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
        AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
        AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
        AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
        AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
        AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
        AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
        AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
        AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
        AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
        AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
        AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
        AV_PIX_FMT_NONE
    };
    AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
    if (!fmts_list)
        return AVERROR(ENOMEM);
    return ff_set_common_formats(ctx, fmts_list);
}

static void smear_borders8(FillBordersContext *s, AVFrame *frame)
{
    int p, y;

    for (p = 0; p < s->nb_planes; p++) {
        uint8_t *ptr = frame->data[p];
        int linesize = frame->linesize[p];

        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
            memset(ptr + y * linesize,
                   *(ptr + y * linesize + s->borders[p].left),
                   s->borders[p].left);
            memset(ptr + y * linesize + s->planewidth[p] - s->borders[p].right,
                   *(ptr + y * linesize + s->planewidth[p] - s->borders[p].right - 1),
                   s->borders[p].right);
        }

        for (y = 0; y < s->borders[p].top; y++) {
            memcpy(ptr + y * linesize,
                   ptr + s->borders[p].top * linesize, s->planewidth[p]);
        }

        for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
            memcpy(ptr + y * linesize,
                   ptr + (s->planeheight[p] - s->borders[p].bottom - 1) * linesize,
                   s->planewidth[p]);
        }
    }
}

static void smear_borders16(FillBordersContext *s, AVFrame *frame)
{
    int p, y, x;

    for (p = 0; p < s->nb_planes; p++) {
        uint16_t *ptr = (uint16_t *)frame->data[p];
        int linesize = frame->linesize[p] / 2;

        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
            for (x = 0; x < s->borders[p].left; x++) {
                ptr[y * linesize + x] =  *(ptr + y * linesize + s->borders[p].left);
            }

            for (x = 0; x < s->borders[p].right; x++) {
                ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
                   *(ptr + y * linesize + s->planewidth[p] - s->borders[p].right - 1);
            }
        }

        for (y = 0; y < s->borders[p].top; y++) {
            memcpy(ptr + y * linesize,
                   ptr + s->borders[p].top * linesize, s->planewidth[p] * 2);
        }

        for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
            memcpy(ptr + y * linesize,
                   ptr + (s->planeheight[p] - s->borders[p].bottom - 1) * linesize,
                   s->planewidth[p] * 2);
        }
    }
}

static void mirror_borders8(FillBordersContext *s, AVFrame *frame)
{
    int p, y, x;

    for (p = 0; p < s->nb_planes; p++) {
        uint8_t *ptr = frame->data[p];
        int linesize = frame->linesize[p];

        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
            for (x = 0; x < s->borders[p].left; x++) {
                ptr[y * linesize + x] = ptr[y * linesize + s->borders[p].left * 2 - 1 - x];
            }

            for (x = 0; x < s->borders[p].right; x++) {
                ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
                    ptr[y * linesize + s->planewidth[p] - s->borders[p].right - 1 - x];
            }
        }

        for (y = 0; y < s->borders[p].top; y++) {
            memcpy(ptr + y * linesize,
                   ptr + (s->borders[p].top * 2 - 1 - y) * linesize,
                   s->planewidth[p]);
        }

        for (y = 0; y < s->borders[p].bottom; y++) {
            memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
                   ptr + (s->planeheight[p] - s->borders[p].bottom - 1 - y) * linesize,
                   s->planewidth[p]);
        }
    }
}

static void mirror_borders16(FillBordersContext *s, AVFrame *frame)
{
    int p, y, x;

    for (p = 0; p < s->nb_planes; p++) {
        uint16_t *ptr = (uint16_t *)frame->data[p];
        int linesize = frame->linesize[p] / 2;

        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
            for (x = 0; x < s->borders[p].left; x++) {
                ptr[y * linesize + x] = ptr[y * linesize + s->borders[p].left * 2 - 1 - x];
            }

            for (x = 0; x < s->borders[p].right; x++) {
                ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
                    ptr[y * linesize + s->planewidth[p] - s->borders[p].right - 1 - x];
            }
        }

        for (y = 0; y < s->borders[p].top; y++) {
            memcpy(ptr + y * linesize,
                   ptr + (s->borders[p].top * 2 - 1 - y) * linesize,
                   s->planewidth[p] * 2);
        }

        for (y = 0; y < s->borders[p].bottom; y++) {
            memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
                   ptr + (s->planeheight[p] - s->borders[p].bottom - 1 - y) * linesize,
                   s->planewidth[p] * 2);
        }
    }
}

static void fixed_borders8(FillBordersContext *s, AVFrame *frame)
{
    int p, y;

    for (p = 0; p < s->nb_planes; p++) {
        uint8_t *ptr = frame->data[p];
        uint8_t fill = s->fill[p];
        int linesize = frame->linesize[p];

        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
            memset(ptr + y * linesize, fill, s->borders[p].left);
            memset(ptr + y * linesize + s->planewidth[p] - s->borders[p].right, fill,
                   s->borders[p].right);
        }

        for (y = 0; y < s->borders[p].top; y++) {
            memset(ptr + y * linesize, fill, s->planewidth[p]);
        }

        for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
            memset(ptr + y * linesize, fill, s->planewidth[p]);
        }
    }
}

static void fixed_borders16(FillBordersContext *s, AVFrame *frame)
{
    int p, y, x;

    for (p = 0; p < s->nb_planes; p++) {
        uint16_t *ptr = (uint16_t *)frame->data[p];
        uint16_t fill = s->fill[p] << (s->depth - 8);
        int linesize = frame->linesize[p] / 2;

        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
            for (x = 0; x < s->borders[p].left; x++) {
                ptr[y * linesize + x] = fill;
            }

            for (x = 0; x < s->borders[p].right; x++) {
                ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] = fill;
            }
        }

        for (y = 0; y < s->borders[p].top; y++) {
            for (x = 0; x < s->planewidth[p]; x++) {
                ptr[y * linesize + x] = fill;
            }
        }

        for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
            for (x = 0; x < s->planewidth[p]; x++) {
                ptr[y * linesize + x] = fill;
            }
        }
    }
}

static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
    FillBordersContext *s = inlink->dst->priv;

    s->fillborders(s, frame);

    return ff_filter_frame(inlink->dst->outputs[0], frame);
}

static int config_input(AVFilterLink *inlink)
{
    AVFilterContext *ctx = inlink->dst;
    FillBordersContext *s = ctx->priv;
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);

    s->nb_planes = desc->nb_components;
    s->depth = desc->comp[0].depth;

    s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
    s->planeheight[0] = s->planeheight[3] = inlink->h;
    s->planewidth[1]  = s->planewidth[2]  = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
    s->planewidth[0]  = s->planewidth[3]  = inlink->w;

    s->borders[0].left   = s->borders[3].left = s->left;
    s->borders[0].right  = s->borders[3].right = s->right;
    s->borders[0].top    = s->borders[3].top = s->top;
    s->borders[0].bottom = s->borders[3].bottom = s->bottom;

    s->borders[1].left   = s->left >> desc->log2_chroma_w;
    s->borders[1].right  = s->right >> desc->log2_chroma_w;
    s->borders[1].top    = s->top >> desc->log2_chroma_h;
    s->borders[1].bottom = s->bottom >> desc->log2_chroma_h;

    s->borders[2].left   = s->left >> desc->log2_chroma_w;
    s->borders[2].right  = s->right >> desc->log2_chroma_w;
    s->borders[2].top    = s->top >> desc->log2_chroma_h;
    s->borders[2].bottom = s->bottom >> desc->log2_chroma_h;

    if (inlink->w < s->left + s->right ||
        inlink->w <= s->left ||
        inlink->w <= s->right ||
        inlink->h < s->top + s->bottom ||
        inlink->h <= s->top ||
        inlink->h <= s->bottom ||
        inlink->w < s->left * 2 ||
        inlink->w < s->right * 2 ||
        inlink->h < s->top * 2 ||
        inlink->h < s->bottom * 2) {
        av_log(ctx, AV_LOG_ERROR, "Borders are bigger than input frame size.\n");
        return AVERROR(EINVAL);
    }

    switch (s->mode) {
    case FM_SMEAR:  s->fillborders = s->depth <= 8 ? smear_borders8  : smear_borders16;  break;
    case FM_MIRROR: s->fillborders = s->depth <= 8 ? mirror_borders8 : mirror_borders16; break;
    case FM_FIXED:  s->fillborders = s->depth <= 8 ? fixed_borders8  : fixed_borders16;  break;
    }

    s->yuv_color[Y] = RGB_TO_Y_CCIR(s->rgba_color[R], s->rgba_color[G], s->rgba_color[B]);
    s->yuv_color[U] = RGB_TO_U_CCIR(s->rgba_color[R], s->rgba_color[G], s->rgba_color[B], 0);
    s->yuv_color[V] = RGB_TO_V_CCIR(s->rgba_color[R], s->rgba_color[G], s->rgba_color[B], 0);
    s->yuv_color[A] = s->rgba_color[A];

    if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
        uint8_t rgba_map[4];
        int i;

        ff_fill_rgba_map(rgba_map, inlink->format);
        for (i = 0; i < 4; i++)
            s->fill[rgba_map[i]] = s->rgba_color[i];
    } else {
        memcpy(s->fill, s->yuv_color, sizeof(s->yuv_color));
    }

    return 0;
}

#define OFFSET(x) offsetof(FillBordersContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

static const AVOption fillborders_options[] = {
    { "left",   "set the left fill border",   OFFSET(left),   AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,    FLAGS },
    { "right",  "set the right fill border",  OFFSET(right),  AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,    FLAGS },
    { "top",    "set the top fill border",    OFFSET(top),    AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,    FLAGS },
    { "bottom", "set the bottom fill border", OFFSET(bottom), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,    FLAGS },
    { "mode",   "set the fill borders mode",  OFFSET(mode),   AV_OPT_TYPE_INT, {.i64=FM_SMEAR}, 0, FM_NB_MODES-1, FLAGS, "mode" },
        { "smear",  NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_SMEAR},  0, 0, FLAGS, "mode" },
        { "mirror", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_MIRROR}, 0, 0, FLAGS, "mode" },
        { "fixed",  NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_FIXED},  0, 0, FLAGS, "mode" },
    { "color",  "set the color for the fixed mode", OFFSET(rgba_color), AV_OPT_TYPE_COLOR, {.str = "black"}, .flags = FLAGS },
    { NULL }
};

AVFILTER_DEFINE_CLASS(fillborders);

static const AVFilterPad fillborders_inputs[] = {
    {
        .name           = "default",
        .type           = AVMEDIA_TYPE_VIDEO,
        .config_props   = config_input,
        .filter_frame   = filter_frame,
        .needs_writable = 1,
    },
    { NULL }
};

static const AVFilterPad fillborders_outputs[] = {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
    },
    { NULL }
};

AVFilter ff_vf_fillborders = {
    .name          = "fillborders",
    .description   = NULL_IF_CONFIG_SMALL("Fill borders of the input video."),
    .priv_size     = sizeof(FillBordersContext),
    .priv_class    = &fillborders_class,
    .query_formats = query_formats,
    .inputs        = fillborders_inputs,
    .outputs       = fillborders_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
};