1. ffmpeg
  2. Commit e1dd97bd4c03d658f9b18a0d6269f1bc06f796c9
Browse code

avfilter: add fillborders filter

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Paul B Mahol authored on 2017/11/19 02:18:39
Showing 6 changed files
Changelog
History View file @ e1dd97b
... ... 
@@ -23,6 +23,7 @@ version <next>:
23 23 
 - audio lv2 wrapper filter
24 24 
 - VAAPI VP8 decoding
25 25 
 - AMD AMF H.264 and HEVC encoders
26 
+- video fillborders filter
26 27
27 28
28 29 
 version 3.4:
doc/filters.texi
History View file @ e1dd97b
... ... 
@@ -8610,6 +8610,48 @@ framework.
8610 8610
8611 8611 
 It does not take parameters.
8612 8612
8613 
+@section fillborders
8614 
+
8615 
+Fill borders of the input video, without changing video stream dimensions.
8616 
+Sometimes video can have garbage at the four edges and you may not want to
8617 
+crop video input to keep size multiple of some number.
8618 
+
8619 
+This filter accepts the following options:
8620 
+
8621 
+@table @option
8622 
+@item left
8623 
+Number of pixels to fill from left border.
8624 
+
8625 
+@item right
8626 
+Number of pixels to fill from right border.
8627 
+
8628 
+@item top
8629 
+Number of pixels to fill from top border.
8630 
+
8631 
+@item bottom
8632 
+Number of pixels to fill from bottom border.
8633 
+
8634 
+@item mode
8635 
+Set fill mode.
8636 
+
8637 
+It accepts the following values:
8638 
+@table @samp
8639 
+@item smear
8640 
+fill pixels using outermost pixels
8641 
+
8642 
+@item mirror
8643 
+fill pixels using mirroring
8644 
+
8645 
+@item fixed
8646 
+fill pixels with constant value
8647 
+@end table
8648 
+
8649 
+Default is @var{smear}.
8650 
+
8651 
+@item color
8652 
+Set color for pixels in fixed mode. Default is @var{black}.
8653 
+@end table
8654 
+
8613 8655 
 @section find_rect
8614 8656
8615 8657 
 Find a rectangular object
libavfilter/Makefile
History View file @ e1dd97b
... ... 
@@ -192,6 +192,7 @@ OBJS-$(CONFIG_FIELD_FILTER)                  += vf_field.o
192 192 
 OBJS-$(CONFIG_FIELDHINT_FILTER)              += vf_fieldhint.o
193 193 
 OBJS-$(CONFIG_FIELDMATCH_FILTER)             += vf_fieldmatch.o
194 194 
 OBJS-$(CONFIG_FIELDORDER_FILTER)             += vf_fieldorder.o
195 
+OBJS-$(CONFIG_FILLBORDERS_FILTER)            += vf_fillborders.o
195 196 
 OBJS-$(CONFIG_FIND_RECT_FILTER)              += vf_find_rect.o lavfutils.o
196 197 
 OBJS-$(CONFIG_FLOODFILL_FILTER)              += vf_floodfill.o
197 198 
 OBJS-$(CONFIG_FORMAT_FILTER)                 += vf_format.o
libavfilter/allfilters.c
History View file @ e1dd97b
... ... 
@@ -202,6 +202,7 @@ static void register_all(void)
202 202 
     REGISTER_FILTER(FIELDHINT,      fieldhint,      vf);
203 203 
     REGISTER_FILTER(FIELDMATCH,     fieldmatch,     vf);
204 204 
     REGISTER_FILTER(FIELDORDER,     fieldorder,     vf);
205 
+    REGISTER_FILTER(FILLBORDERS,    fillborders,    vf);
205 206 
     REGISTER_FILTER(FIND_RECT,      find_rect,      vf);
206 207 
     REGISTER_FILTER(FLOODFILL,      floodfill,      vf);
207 208 
     REGISTER_FILTER(FORMAT,         format,         vf);
libavfilter/version.h
History View file @ e1dd97b
... ... 
@@ -30,7 +30,7 @@
30 30 
 #include "libavutil/version.h"
31 31
32 32 
 #define LIBAVFILTER_VERSION_MAJOR   7
33 
-#define LIBAVFILTER_VERSION_MINOR   5
33 
+#define LIBAVFILTER_VERSION_MINOR   6
34 34 
 #define LIBAVFILTER_VERSION_MICRO 100
35 35
36 36 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
libavfilter/vf_fillborders.c
History View file @ e1dd97b
37 37 
new file mode 100644
... ... 
@@ -0,0 +1,394 @@
0 
+/*
1 
+ * Copyright (c) 2017 Paul B Mahol
2 
+ *
3 
+ * This file is part of FFmpeg.
4 
+ *
5 
+ * FFmpeg is free software; you can redistribute it and/or
6 
+ * modify it under the terms of the GNU Lesser General Public
7 
+ * License as published by the Free Software Foundation; either
8 
+ * version 2.1 of the License, or (at your option) any later version.
9 
+ *
10 
+ * FFmpeg is distributed in the hope that it will be useful,
11 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 
+ * Lesser General Public License for more details.
14 
+ *
15 
+ * You should have received a copy of the GNU Lesser General Public
16 
+ * License along with FFmpeg; if not, write to the Free Software
17 
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 
+ */
19 
+
20 
+#include "libavutil/colorspace.h"
21 
+#include "libavutil/common.h"
22 
+#include "libavutil/opt.h"
23 
+#include "libavutil/pixdesc.h"
24 
+#include "avfilter.h"
25 
+#include "drawutils.h"
26 
+#include "formats.h"
27 
+#include "internal.h"
28 
+#include "video.h"
29 
+
30 
+enum { Y, U, V, A };
31 
+enum { R, G, B };
32 
+
33 
+enum FillMode { FM_SMEAR, FM_MIRROR, FM_FIXED, FM_NB_MODES };
34 
+
35 
+typedef struct Borders {
36 
+    int left, right, top, bottom;
37 
+} Borders;
38 
+
39 
+typedef struct FillBordersContext {
40 
+    const AVClass *class;
41 
+    int left, right, top, bottom;
42 
+    int mode;
43 
+
44 
+    int nb_planes;
45 
+    int depth;
46 
+    Borders borders[4];
47 
+    int planewidth[4];
48 
+    int planeheight[4];
49 
+    uint8_t fill[4];
50 
+    uint8_t yuv_color[4];
51 
+    uint8_t rgba_color[4];
52 
+
53 
+    void (*fillborders)(struct FillBordersContext *s, AVFrame *frame);
54 
+} FillBordersContext;
55 
+
56 
+static int query_formats(AVFilterContext *ctx)
57 
+{
58 
+    static const enum AVPixelFormat pix_fmts[] = {
59 
+        AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
60 
+        AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
61 
+        AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
62 
+        AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
63 
+        AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
64 
+        AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
65 
+        AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
66 
+        AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
67 
+        AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
68 
+        AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
69 
+        AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
70 
+        AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
71 
+        AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
72 
+        AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
73 
+        AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
74 
+        AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
75 
+        AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY16,
76 
+        AV_PIX_FMT_NONE
77 
+    };
78 
+    AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
79 
+    if (!fmts_list)
80 
+        return AVERROR(ENOMEM);
81 
+    return ff_set_common_formats(ctx, fmts_list);
82 
+}
83 
+
84 
+static void smear_borders8(FillBordersContext *s, AVFrame *frame)
85 
+{
86 
+    int p, y;
87 
+
88 
+    for (p = 0; p < s->nb_planes; p++) {
89 
+        uint8_t *ptr = frame->data[p];
90 
+        int linesize = frame->linesize[p];
91 
+
92 
+        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
93 
+            memset(ptr + y * linesize,
94 
+                   *(ptr + y * linesize + s->borders[p].left),
95 
+                   s->borders[p].left);
96 
+            memset(ptr + y * linesize + s->planewidth[p] - s->borders[p].right,
97 
+                   *(ptr + y * linesize + s->planewidth[p] - s->borders[p].right - 1),
98 
+                   s->borders[p].right);
99 
+        }
100 
+
101 
+        for (y = 0; y < s->borders[p].top; y++) {
102 
+            memcpy(ptr + y * linesize,
103 
+                   ptr + s->borders[p].top * linesize, s->planewidth[p]);
104 
+        }
105 
+
106 
+        for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
107 
+            memcpy(ptr + y * linesize,
108 
+                   ptr + (s->planeheight[p] - s->borders[p].bottom - 1) * linesize,
109 
+                   s->planewidth[p]);
110 
+        }
111 
+    }
112 
+}
113 
+
114 
+static void smear_borders16(FillBordersContext *s, AVFrame *frame)
115 
+{
116 
+    int p, y, x;
117 
+
118 
+    for (p = 0; p < s->nb_planes; p++) {
119 
+        uint16_t *ptr = (uint16_t *)frame->data[p];
120 
+        int linesize = frame->linesize[p] / 2;
121 
+
122 
+        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
123 
+            for (x = 0; x < s->borders[p].left; x++) {
124 
+                ptr[y * linesize + x] =  *(ptr + y * linesize + s->borders[p].left);
125 
+            }
126 
+
127 
+            for (x = 0; x < s->borders[p].right; x++) {
128 
+                ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
129 
+                   *(ptr + y * linesize + s->planewidth[p] - s->borders[p].right - 1);
130 
+            }
131 
+        }
132 
+
133 
+        for (y = 0; y < s->borders[p].top; y++) {
134 
+            memcpy(ptr + y * linesize,
135 
+                   ptr + s->borders[p].top * linesize, s->planewidth[p] * 2);
136 
+        }
137 
+
138 
+        for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
139 
+            memcpy(ptr + y * linesize,
140 
+                   ptr + (s->planeheight[p] - s->borders[p].bottom - 1) * linesize,
141 
+                   s->planewidth[p] * 2);
142 
+        }
143 
+    }
144 
+}
145 
+
146 
+static void mirror_borders8(FillBordersContext *s, AVFrame *frame)
147 
+{
148 
+    int p, y, x;
149 
+
150 
+    for (p = 0; p < s->nb_planes; p++) {
151 
+        uint8_t *ptr = frame->data[p];
152 
+        int linesize = frame->linesize[p];
153 
+
154 
+        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
155 
+            for (x = 0; x < s->borders[p].left; x++) {
156 
+                ptr[y * linesize + x] = ptr[y * linesize + s->borders[p].left * 2 - 1 - x];
157 
+            }
158 
+
159 
+            for (x = 0; x < s->borders[p].right; x++) {
160 
+                ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
161 
+                    ptr[y * linesize + s->planewidth[p] - s->borders[p].right - 1 - x];
162 
+            }
163 
+        }
164 
+
165 
+        for (y = 0; y < s->borders[p].top; y++) {
166 
+            memcpy(ptr + y * linesize,
167 
+                   ptr + (s->borders[p].top * 2 - 1 - y) * linesize,
168 
+                   s->planewidth[p]);
169 
+        }
170 
+
171 
+        for (y = 0; y < s->borders[p].bottom; y++) {
172 
+            memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
173 
+                   ptr + (s->planeheight[p] - s->borders[p].bottom - 1 - y) * linesize,
174 
+                   s->planewidth[p]);
175 
+        }
176 
+    }
177 
+}
178 
+
179 
+static void mirror_borders16(FillBordersContext *s, AVFrame *frame)
180 
+{
181 
+    int p, y, x;
182 
+
183 
+    for (p = 0; p < s->nb_planes; p++) {
184 
+        uint16_t *ptr = (uint16_t *)frame->data[p];
185 
+        int linesize = frame->linesize[p] / 2;
186 
+
187 
+        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
188 
+            for (x = 0; x < s->borders[p].left; x++) {
189 
+                ptr[y * linesize + x] = ptr[y * linesize + s->borders[p].left * 2 - 1 - x];
190 
+            }
191 
+
192 
+            for (x = 0; x < s->borders[p].right; x++) {
193 
+                ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
194 
+                    ptr[y * linesize + s->planewidth[p] - s->borders[p].right - 1 - x];
195 
+            }
196 
+        }
197 
+
198 
+        for (y = 0; y < s->borders[p].top; y++) {
199 
+            memcpy(ptr + y * linesize,
200 
+                   ptr + (s->borders[p].top * 2 - 1 - y) * linesize,
201 
+                   s->planewidth[p] * 2);
202 
+        }
203 
+
204 
+        for (y = 0; y < s->borders[p].bottom; y++) {
205 
+            memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
206 
+                   ptr + (s->planeheight[p] - s->borders[p].bottom - 1 - y) * linesize,
207 
+                   s->planewidth[p] * 2);
208 
+        }
209 
+    }
210 
+}
211 
+
212 
+static void fixed_borders8(FillBordersContext *s, AVFrame *frame)
213 
+{
214 
+    int p, y;
215 
+
216 
+    for (p = 0; p < s->nb_planes; p++) {
217 
+        uint8_t *ptr = frame->data[p];
218 
+        uint8_t fill = s->fill[p];
219 
+        int linesize = frame->linesize[p];
220 
+
221 
+        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
222 
+            memset(ptr + y * linesize, fill, s->borders[p].left);
223 
+            memset(ptr + y * linesize + s->planewidth[p] - s->borders[p].right, fill,
224 
+                   s->borders[p].right);
225 
+        }
226 
+
227 
+        for (y = 0; y < s->borders[p].top; y++) {
228 
+            memset(ptr + y * linesize, fill, s->planewidth[p]);
229 
+        }
230 
+
231 
+        for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
232 
+            memset(ptr + y * linesize, fill, s->planewidth[p]);
233 
+        }
234 
+    }
235 
+}
236 
+
237 
+static void fixed_borders16(FillBordersContext *s, AVFrame *frame)
238 
+{
239 
+    int p, y, x;
240 
+
241 
+    for (p = 0; p < s->nb_planes; p++) {
242 
+        uint16_t *ptr = (uint16_t *)frame->data[p];
243 
+        uint16_t fill = s->fill[p] << (s->depth - 8);
244 
+        int linesize = frame->linesize[p] / 2;
245 
+
246 
+        for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
247 
+            for (x = 0; x < s->borders[p].left; x++) {
248 
+                ptr[y * linesize + x] = fill;
249 
+            }
250 
+
251 
+            for (x = 0; x < s->borders[p].right; x++) {
252 
+                ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] = fill;
253 
+            }
254 
+        }
255 
+
256 
+        for (y = 0; y < s->borders[p].top; y++) {
257 
+            for (x = 0; x < s->planewidth[p]; x++) {
258 
+                ptr[y * linesize + x] = fill;
259 
+            }
260 
+        }
261 
+
262 
+        for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
263 
+            for (x = 0; x < s->planewidth[p]; x++) {
264 
+                ptr[y * linesize + x] = fill;
265 
+            }
266 
+        }
267 
+    }
268 
+}
269 
+
270 
+static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
271 
+{
272 
+    FillBordersContext *s = inlink->dst->priv;
273 
+
274 
+    s->fillborders(s, frame);
275 
+
276 
+    return ff_filter_frame(inlink->dst->outputs[0], frame);
277 
+}
278 
+
279 
+static int config_input(AVFilterLink *inlink)
280 
+{
281 
+    AVFilterContext *ctx = inlink->dst;
282 
+    FillBordersContext *s = ctx->priv;
283 
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
284 
+
285 
+    s->nb_planes = desc->nb_components;
286 
+    s->depth = desc->comp[0].depth;
287 
+
288 
+    s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
289 
+    s->planeheight[0] = s->planeheight[3] = inlink->h;
290 
+    s->planewidth[1]  = s->planewidth[2]  = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
291 
+    s->planewidth[0]  = s->planewidth[3]  = inlink->w;
292 
+
293 
+    s->borders[0].left   = s->borders[3].left = s->left;
294 
+    s->borders[0].right  = s->borders[3].right = s->right;
295 
+    s->borders[0].top    = s->borders[3].top = s->top;
296 
+    s->borders[0].bottom = s->borders[3].bottom = s->bottom;
297 
+
298 
+    s->borders[1].left   = s->left >> desc->log2_chroma_w;
299 
+    s->borders[1].right  = s->right >> desc->log2_chroma_w;
300 
+    s->borders[1].top    = s->top >> desc->log2_chroma_h;
301 
+    s->borders[1].bottom = s->bottom >> desc->log2_chroma_h;
302 
+
303 
+    s->borders[2].left   = s->left >> desc->log2_chroma_w;
304 
+    s->borders[2].right  = s->right >> desc->log2_chroma_w;
305 
+    s->borders[2].top    = s->top >> desc->log2_chroma_h;
306 
+    s->borders[2].bottom = s->bottom >> desc->log2_chroma_h;
307 
+
308 
+    if (inlink->w < s->left + s->right ||
309 
+        inlink->w <= s->left ||
310 
+        inlink->w <= s->right ||
311 
+        inlink->h < s->top + s->bottom ||
312 
+        inlink->h <= s->top ||
313 
+        inlink->h <= s->bottom ||
314 
+        inlink->w < s->left * 2 ||
315 
+        inlink->w < s->right * 2 ||
316 
+        inlink->h < s->top * 2 ||
317 
+        inlink->h < s->bottom * 2) {
318 
+        av_log(ctx, AV_LOG_ERROR, "Borders are bigger than input frame size.\n");
319 
+        return AVERROR(EINVAL);
320 
+    }
321 
+
322 
+    switch (s->mode) {
323 
+    case FM_SMEAR:  s->fillborders = s->depth <= 8 ? smear_borders8  : smear_borders16;  break;
324 
+    case FM_MIRROR: s->fillborders = s->depth <= 8 ? mirror_borders8 : mirror_borders16; break;
325 
+    case FM_FIXED:  s->fillborders = s->depth <= 8 ? fixed_borders8  : fixed_borders16;  break;
326 
+    }
327 
+
328 
+    s->yuv_color[Y] = RGB_TO_Y_CCIR(s->rgba_color[R], s->rgba_color[G], s->rgba_color[B]);
329 
+    s->yuv_color[U] = RGB_TO_U_CCIR(s->rgba_color[R], s->rgba_color[G], s->rgba_color[B], 0);
330 
+    s->yuv_color[V] = RGB_TO_V_CCIR(s->rgba_color[R], s->rgba_color[G], s->rgba_color[B], 0);
331 
+    s->yuv_color[A] = s->rgba_color[A];
332 
+
333 
+    if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
334 
+        uint8_t rgba_map[4];
335 
+        int i;
336 
+
337 
+        ff_fill_rgba_map(rgba_map, inlink->format);
338 
+        for (i = 0; i < 4; i++)
339 
+            s->fill[rgba_map[i]] = s->rgba_color[i];
340 
+    } else {
341 
+        memcpy(s->fill, s->yuv_color, sizeof(s->yuv_color));
342 
+    }
343 
+
344 
+    return 0;
345 
+}
346 
+
347 
+#define OFFSET(x) offsetof(FillBordersContext, x)
348 
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
349 
+
350 
+static const AVOption fillborders_options[] = {
351 
+    { "left",   "set the left fill border",   OFFSET(left),   AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,    FLAGS },
352 
+    { "right",  "set the right fill border",  OFFSET(right),  AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,    FLAGS },
353 
+    { "top",    "set the top fill border",    OFFSET(top),    AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,    FLAGS },
354 
+    { "bottom", "set the bottom fill border", OFFSET(bottom), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,    FLAGS },
355 
+    { "mode",   "set the fill borders mode",  OFFSET(mode),   AV_OPT_TYPE_INT, {.i64=FM_SMEAR}, 0, FM_NB_MODES-1, FLAGS, "mode" },
356 
+        { "smear",  NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_SMEAR},  0, 0, FLAGS, "mode" },
357 
+        { "mirror", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_MIRROR}, 0, 0, FLAGS, "mode" },
358 
+        { "fixed",  NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_FIXED},  0, 0, FLAGS, "mode" },
359 
+    { "color",  "set the color for the fixed mode", OFFSET(rgba_color), AV_OPT_TYPE_COLOR, {.str = "black"}, .flags = FLAGS },
360 
+    { NULL }
361 
+};
362 
+
363 
+AVFILTER_DEFINE_CLASS(fillborders);
364 
+
365 
+static const AVFilterPad fillborders_inputs[] = {
366 
+    {
367 
+        .name           = "default",
368 
+        .type           = AVMEDIA_TYPE_VIDEO,
369 
+        .config_props   = config_input,
370 
+        .filter_frame   = filter_frame,
371 
+        .needs_writable = 1,
372 
+    },
373 
+    { NULL }
374 
+};
375 
+
376 
+static const AVFilterPad fillborders_outputs[] = {
377 
+    {
378 
+        .name = "default",
379 
+        .type = AVMEDIA_TYPE_VIDEO,
380 
+    },
381 
+    { NULL }
382 
+};
383 
+
384 
+AVFilter ff_vf_fillborders = {
385 
+    .name          = "fillborders",
386 
+    .description   = NULL_IF_CONFIG_SMALL("Fill borders of the input video."),
387 
+    .priv_size     = sizeof(FillBordersContext),
388 
+    .priv_class    = &fillborders_class,
389 
+    .query_formats = query_formats,
390 
+    .inputs        = fillborders_inputs,
391 
+    .outputs       = fillborders_outputs,
392 
+    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
393 
+};