FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/vf_extractplanes.c
Date: 2025-10-10 03:51:19
Exec Total Coverage
Lines: 100 168 59.5%
Functions: 7 8 87.5%
Branches: 59 142 41.5%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2013 Paul B Mahol
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "config_components.h"
22
23 #include "libavutil/avstring.h"
24 #include "libavutil/imgutils.h"
25 #include "libavutil/opt.h"
26 #include "libavutil/pixdesc.h"
27
28 #include "avfilter.h"
29 #include "drawutils.h"
30 #include "filters.h"
31 #include "formats.h"
32 #include "video.h"
33
34 #define PLANE_R 0x01
35 #define PLANE_G 0x02
36 #define PLANE_B 0x04
37 #define PLANE_A 0x08
38 #define PLANE_Y 0x10
39 #define PLANE_U 0x20
40 #define PLANE_V 0x40
41
42 typedef struct ExtractPlanesContext {
43 const AVClass *class;
44 int requested_planes;
45 int map[4];
46 int linesize[4];
47 int is_packed;
48 int depth;
49 int step;
50 } ExtractPlanesContext;
51
52 #define OFFSET(x) offsetof(ExtractPlanesContext, x)
53 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
54 static const AVOption extractplanes_options[] = {
55 { "planes", "set planes", OFFSET(requested_planes), AV_OPT_TYPE_FLAGS, {.i64=1}, 1, 0xff, FLAGS, .unit = "flags"},
56 { "y", "set luma plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_Y}, 0, 0, FLAGS, .unit = "flags"},
57 { "u", "set u plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_U}, 0, 0, FLAGS, .unit = "flags"},
58 { "v", "set v plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_V}, 0, 0, FLAGS, .unit = "flags"},
59 { "r", "set red plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_R}, 0, 0, FLAGS, .unit = "flags"},
60 { "g", "set green plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_G}, 0, 0, FLAGS, .unit = "flags"},
61 { "b", "set blue plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_B}, 0, 0, FLAGS, .unit = "flags"},
62 { "a", "set alpha plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_A}, 0, 0, FLAGS, .unit = "flags"},
63 { NULL }
64 };
65
66 AVFILTER_DEFINE_CLASS(extractplanes);
67
68 #define EIGHTBIT_FORMATS \
69 AV_PIX_FMT_YUV410P, \
70 AV_PIX_FMT_YUV411P, \
71 AV_PIX_FMT_YUV440P, \
72 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, \
73 AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P, \
74 AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, \
75 AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P, \
76 AV_PIX_FMT_YUVJ411P, \
77 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, \
78 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY8A, \
79 AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, \
80 AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, \
81 AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, \
82 AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0, \
83 AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR, \
84 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP
85
86 #define HIGHDEPTH_FORMATS(suf) \
87 AV_PIX_FMT_YA16##suf, \
88 AV_PIX_FMT_GRAY9##suf, \
89 AV_PIX_FMT_GRAY10##suf, \
90 AV_PIX_FMT_GRAY12##suf, \
91 AV_PIX_FMT_GRAY14##suf, \
92 AV_PIX_FMT_GRAY16##suf, \
93 AV_PIX_FMT_YUV420P16##suf, AV_PIX_FMT_YUVA420P16##suf, \
94 AV_PIX_FMT_YUV422P16##suf, AV_PIX_FMT_YUVA422P16##suf, \
95 AV_PIX_FMT_YUV444P16##suf, AV_PIX_FMT_YUVA444P16##suf, \
96 AV_PIX_FMT_RGB48##suf, AV_PIX_FMT_BGR48##suf, \
97 AV_PIX_FMT_RGBA64##suf, AV_PIX_FMT_BGRA64##suf, \
98 AV_PIX_FMT_GBRP16##suf, AV_PIX_FMT_GBRAP16##suf, \
99 AV_PIX_FMT_YUV420P10##suf, \
100 AV_PIX_FMT_YUV422P10##suf, \
101 AV_PIX_FMT_YUV444P10##suf, \
102 AV_PIX_FMT_YUV440P10##suf, \
103 AV_PIX_FMT_YUVA420P10##suf, \
104 AV_PIX_FMT_YUVA422P10##suf, \
105 AV_PIX_FMT_YUVA444P10##suf, \
106 AV_PIX_FMT_YUV420P12##suf, \
107 AV_PIX_FMT_YUV422P12##suf, \
108 AV_PIX_FMT_YUV444P12##suf, \
109 AV_PIX_FMT_YUV440P12##suf, \
110 AV_PIX_FMT_YUVA422P12##suf, \
111 AV_PIX_FMT_YUVA444P12##suf, \
112 AV_PIX_FMT_GBRP10##suf, AV_PIX_FMT_GBRAP10##suf, \
113 AV_PIX_FMT_GBRP12##suf, AV_PIX_FMT_GBRAP12##suf, \
114 AV_PIX_FMT_YUV420P9##suf, \
115 AV_PIX_FMT_YUV422P9##suf, \
116 AV_PIX_FMT_YUV444P9##suf, \
117 AV_PIX_FMT_YUVA420P9##suf, \
118 AV_PIX_FMT_YUVA422P9##suf, \
119 AV_PIX_FMT_YUVA444P9##suf, \
120 AV_PIX_FMT_GBRP9##suf, \
121 AV_PIX_FMT_GBRP14##suf, AV_PIX_FMT_GBRAP14##suf, \
122 AV_PIX_FMT_YUV420P14##suf, \
123 AV_PIX_FMT_YUV422P14##suf, \
124 AV_PIX_FMT_YUV444P14##suf
125
126 #define FLOAT_FORMATS(suf) \
127 AV_PIX_FMT_GRAYF32##suf, \
128 AV_PIX_FMT_RGBF32##suf, AV_PIX_FMT_RGBAF32##suf, \
129 AV_PIX_FMT_GBRPF32##suf, AV_PIX_FMT_GBRAPF32##suf \
130
131 4 static int query_formats(AVFilterContext *ctx)
132 {
133 static const enum AVPixelFormat in_pixfmts_le[] = {
134 EIGHTBIT_FORMATS,
135 HIGHDEPTH_FORMATS(LE),
136 FLOAT_FORMATS(LE),
137 AV_PIX_FMT_NONE,
138 };
139 static const enum AVPixelFormat in_pixfmts_be[] = {
140 EIGHTBIT_FORMATS,
141 HIGHDEPTH_FORMATS(BE),
142 FLOAT_FORMATS(BE),
143 AV_PIX_FMT_NONE,
144 };
145 static const enum AVPixelFormat out8_pixfmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
146 static const enum AVPixelFormat out9le_pixfmts[] = { AV_PIX_FMT_GRAY9LE, AV_PIX_FMT_NONE };
147 static const enum AVPixelFormat out9be_pixfmts[] = { AV_PIX_FMT_GRAY9BE, AV_PIX_FMT_NONE };
148 static const enum AVPixelFormat out10le_pixfmts[] = { AV_PIX_FMT_GRAY10LE, AV_PIX_FMT_NONE };
149 static const enum AVPixelFormat out10be_pixfmts[] = { AV_PIX_FMT_GRAY10BE, AV_PIX_FMT_NONE };
150 static const enum AVPixelFormat out12le_pixfmts[] = { AV_PIX_FMT_GRAY12LE, AV_PIX_FMT_NONE };
151 static const enum AVPixelFormat out12be_pixfmts[] = { AV_PIX_FMT_GRAY12BE, AV_PIX_FMT_NONE };
152 static const enum AVPixelFormat out14le_pixfmts[] = { AV_PIX_FMT_GRAY14LE, AV_PIX_FMT_NONE };
153 static const enum AVPixelFormat out14be_pixfmts[] = { AV_PIX_FMT_GRAY14BE, AV_PIX_FMT_NONE };
154 static const enum AVPixelFormat out16le_pixfmts[] = { AV_PIX_FMT_GRAY16LE, AV_PIX_FMT_NONE };
155 static const enum AVPixelFormat out16be_pixfmts[] = { AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE };
156 static const enum AVPixelFormat out32le_pixfmts[] = { AV_PIX_FMT_GRAYF32LE, AV_PIX_FMT_NONE };
157 static const enum AVPixelFormat out32be_pixfmts[] = { AV_PIX_FMT_GRAYF32BE, AV_PIX_FMT_NONE };
158 const enum AVPixelFormat *out_pixfmts, *in_pixfmts;
159 const AVPixFmtDescriptor *desc;
160 AVFilterFormats *avff;
161 4 int i, ret, depth = 0, be = 0;
162
163
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
 4 if (!ctx->inputs[0]->incfg.formats ||
164
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 !ctx->inputs[0]->incfg.formats->nb_formats) {
165 ✗ return AVERROR(EAGAIN);
166 }
167
168 4 avff = ctx->inputs[0]->incfg.formats;
169 4 desc = av_pix_fmt_desc_get(avff->formats[0]);
170 4 depth = desc->comp[0].depth;
171 4 be = desc->flags & AV_PIX_FMT_FLAG_BE;
172
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (be) {
173 ✗ in_pixfmts = in_pixfmts_be;
174 } else {
175 4 in_pixfmts = in_pixfmts_le;
176 }
177
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 2 times.
 4 if (!ctx->inputs[0]->outcfg.formats)
178
1/2
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
 2 if ((ret = ff_formats_ref(ff_make_format_list(in_pixfmts), &ctx->inputs[0]->outcfg.formats)) < 0)
179 ✗ return ret;
180
181
2/2
✓ Branch 0 taken 25 times.
✓ Branch 1 taken 2 times.
 27 for (i = 1; i < avff->nb_formats; i++) {
182 25 desc = av_pix_fmt_desc_get(avff->formats[i]);
183
2/2
✓ Branch 0 taken 23 times.
✓ Branch 1 taken 2 times.
 25 if (depth != desc->comp[0].depth ||
184
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 23 times.
 23 be != (desc->flags & AV_PIX_FMT_FLAG_BE)) {
185 2 return AVERROR(EAGAIN);
186 }
187 }
188
189
1/2
✓ Branch 0 taken 2 times.
✗ Branch 1 not taken.
 2 if (depth == 8)
190 2 out_pixfmts = out8_pixfmts;
191 ✗ else if (!be && depth == 9)
192 ✗ out_pixfmts = out9le_pixfmts;
193 ✗ else if (be && depth == 9)
194 ✗ out_pixfmts = out9be_pixfmts;
195 ✗ else if (!be && depth == 10)
196 ✗ out_pixfmts = out10le_pixfmts;
197 ✗ else if (be && depth == 10)
198 ✗ out_pixfmts = out10be_pixfmts;
199 ✗ else if (!be && depth == 12)
200 ✗ out_pixfmts = out12le_pixfmts;
201 ✗ else if (be && depth == 12)
202 ✗ out_pixfmts = out12be_pixfmts;
203 ✗ else if (!be && depth == 14)
204 ✗ out_pixfmts = out14le_pixfmts;
205 ✗ else if (be && depth == 14)
206 ✗ out_pixfmts = out14be_pixfmts;
207 ✗ else if (be && depth == 16)
208 ✗ out_pixfmts = out16be_pixfmts;
209 ✗ else if (!be && depth == 16)
210 ✗ out_pixfmts = out16le_pixfmts;
211 ✗ else if (be && depth == 32)
212 ✗ out_pixfmts = out32be_pixfmts;
213 else
214 ✗ out_pixfmts = out32le_pixfmts;
215
216 /* Splitting planes apart only makes sense for straight alpha */
217
1/2
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
 2 if ((ret = ff_formats_ref(ff_make_formats_list_singleton(AVALPHA_MODE_STRAIGHT), &ctx->inputs[0]->outcfg.alpha_modes)) < 0)
218 ✗ return ret;
219
220
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 2 times.
 4 for (i = 0; i < ctx->nb_outputs; i++)
221
1/2
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
 2 if ((ret = ff_formats_ref(ff_make_format_list(out_pixfmts), &ctx->outputs[i]->incfg.formats)) < 0)
222 ✗ return ret;
223 2 return 0;
224 }
225
226 2 static int config_input(AVFilterLink *inlink)
227 {
228 2 AVFilterContext *ctx = inlink->dst;
229 2 ExtractPlanesContext *s = ctx->priv;
230 2 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
231 int plane_avail, ret, i;
232 uint8_t rgba_map[4];
233
234
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 1 times.
 3 plane_avail = ((desc->flags & AV_PIX_FMT_FLAG_RGB) ? PLANE_R|PLANE_G|PLANE_B :
235 1 PLANE_Y |
236
1/2
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
 1 ((desc->nb_components > 2) ? PLANE_U|PLANE_V : 0)) |
237 2 ((desc->flags & AV_PIX_FMT_FLAG_ALPHA) ? PLANE_A : 0);
238
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 if (s->requested_planes & ~plane_avail) {
239 ✗ av_log(ctx, AV_LOG_ERROR, "Requested planes not available.\n");
240 ✗ return AVERROR(EINVAL);
241 }
242
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
 2 if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
243 ✗ return ret;
244
245 2 s->depth = desc->comp[0].depth >> 3;
246 2 s->step = av_get_padded_bits_per_pixel(desc) >> 3;
247
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 1 times.
 3 s->is_packed = !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
248
1/2
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
 1 (desc->nb_components > 1);
249
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 1 times.
 2 if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
250 1 ff_fill_rgba_map(rgba_map, inlink->format);
251
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 1 times.
 5 for (i = 0; i < 4; i++)
252 4 s->map[i] = rgba_map[s->map[i]];
253 }
254
255 2 return 0;
256 }
257
258 2 static int config_output(AVFilterLink *outlink)
259 {
260 2 AVFilterContext *ctx = outlink->src;
261 2 AVFilterLink *inlink = ctx->inputs[0];
262 2 ExtractPlanesContext *s = ctx->priv;
263 2 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
264 2 const int output = outlink->srcpad - ctx->output_pads;
265
266
2/4
✓ Branch 0 taken 2 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
 2 if (s->map[output] == 1 || s->map[output] == 2) {
267 ✗ outlink->h = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
268 ✗ outlink->w = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
269 }
270
271 2 return 0;
272 }
273
274 50 static void extract_from_packed(uint8_t *dst, int dst_linesize,
275 const uint8_t *src, int src_linesize,
276 int width, int height,
277 int depth, int step, int comp)
278 {
279 int x, y;
280
281
2/2
✓ Branch 0 taken 14400 times.
✓ Branch 1 taken 50 times.
 14450 for (y = 0; y < height; y++) {
282
1/4
✓ Branch 0 taken 14400 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 14400 switch (depth) {
283 14400 case 1:
284
2/2
✓ Branch 0 taken 5068800 times.
✓ Branch 1 taken 14400 times.
 5083200 for (x = 0; x < width; x++)
285 5068800 dst[x] = src[x * step + comp];
286 14400 break;
287 ✗ case 2:
288 ✗ for (x = 0; x < width; x++) {
289 ✗ dst[x * 2 ] = src[x * step + comp * 2 ];
290 ✗ dst[x * 2 + 1] = src[x * step + comp * 2 + 1];
291 }
292 ✗ break;
293 ✗ case 4:
294 ✗ for (x = 0; x < width; x++) {
295 ✗ dst[x * 4 ] = src[x * step + comp * 4 ];
296 ✗ dst[x * 4 + 1] = src[x * step + comp * 4 + 1];
297 ✗ dst[x * 4 + 2] = src[x * step + comp * 4 + 2];
298 ✗ dst[x * 4 + 3] = src[x * step + comp * 4 + 3];
299 }
300 ✗ break;
301 }
302 14400 dst += dst_linesize;
303 14400 src += src_linesize;
304 }
305 50 }
306
307 100 static int extract_plane(AVFilterLink *outlink, AVFrame *frame)
308 {
309 100 AVFilterContext *ctx = outlink->src;
310 100 ExtractPlanesContext *s = ctx->priv;
311 100 const int idx = s->map[FF_OUTLINK_IDX(outlink)];
312 AVFrame *out;
313
314 100 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
315
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 100 times.
 100 if (!out)
316 ✗ return AVERROR(ENOMEM);
317 100 av_frame_copy_props(out, frame);
318
1/2
✓ Branch 0 taken 100 times.
✗ Branch 1 not taken.
 100 if (idx == 3 /* alpha */)
319 100 out->color_range = AVCOL_RANGE_JPEG;
320
321
2/2
✓ Branch 0 taken 50 times.
✓ Branch 1 taken 50 times.
 100 if (s->is_packed) {
322 50 extract_from_packed(out->data[0], out->linesize[0],
323 50 frame->data[0], frame->linesize[0],
324 outlink->w, outlink->h,
325 s->depth,
326 s->step, idx);
327 } else {
328 50 av_image_copy_plane(out->data[0], out->linesize[0],
329 50 frame->data[idx], frame->linesize[idx],
330 s->linesize[idx], outlink->h);
331 }
332
333 100 return ff_filter_frame(outlink, out);
334 }
335
336 202 static int activate(AVFilterContext *ctx)
337 {
338 202 AVFilterLink *inlink = ctx->inputs[0];
339 int status, ret;
340 AVFrame *in;
341 int64_t pts;
342
343
2/2
✓ Branch 0 taken 202 times.
✓ Branch 1 taken 202 times.
 404 for (int i = 0; i < ctx->nb_outputs; i++) {
344
1/4
✗ Branch 1 not taken.
✓ Branch 2 taken 202 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 202 FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[i], ctx);
345 }
346
347 202 ret = ff_inlink_consume_frame(inlink, &in);
348
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 202 times.
 202 if (ret < 0)
349 ✗ return ret;
350
2/2
✓ Branch 0 taken 100 times.
✓ Branch 1 taken 102 times.
 202 if (ret > 0) {
351
2/2
✓ Branch 0 taken 100 times.
✓ Branch 1 taken 100 times.
 200 for (int i = 0; i < ctx->nb_outputs; i++) {
352
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 100 times.
 100 if (ff_outlink_get_status(ctx->outputs[i]))
353 ✗ continue;
354
355 100 ret = extract_plane(ctx->outputs[i], in);
356
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 100 times.
 100 if (ret < 0)
357 ✗ break;
358 }
359
360 100 av_frame_free(&in);
361
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 100 times.
 100 if (ret < 0)
362 ✗ return ret;
363 }
364
365
2/2
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 200 times.
 202 if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
366
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 2 times.
 4 for (int i = 0; i < ctx->nb_outputs; i++) {
367
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
 2 if (ff_outlink_get_status(ctx->outputs[i]))
368 ✗ continue;
369 2 ff_outlink_set_status(ctx->outputs[i], status, pts);
370 }
371 2 return 0;
372 }
373
374
4/4
✓ Branch 1 taken 100 times.
✓ Branch 2 taken 100 times.
✓ Branch 4 taken 200 times.
✓ Branch 5 taken 100 times.
 300 FF_FILTER_FORWARD_WANTED_ANY(ctx, inlink);
375
376 100 return FFERROR_NOT_READY;
377 }
378
379 ✗ static av_cold int init(AVFilterContext *ctx)
380 {
381 ✗ ExtractPlanesContext *s = ctx->priv;
382 ✗ int planes = (s->requested_planes & 0xf) | (s->requested_planes >> 4);
383 int i, ret;
384
385 ✗ for (i = 0; i < 4; i++) {
386 char *name;
387 ✗ AVFilterPad pad = { 0 };
388
389 ✗ if (!(planes & (1 << i)))
390 ✗ continue;
391
392 ✗ name = av_asprintf("out%d", ctx->nb_outputs);
393 ✗ if (!name)
394 ✗ return AVERROR(ENOMEM);
395 ✗ s->map[ctx->nb_outputs] = i;
396 ✗ pad.name = name;
397 ✗ pad.type = AVMEDIA_TYPE_VIDEO;
398 ✗ pad.config_props = config_output;
399
400 ✗ if ((ret = ff_append_outpad_free_name(ctx, &pad)) < 0)
401 ✗ return ret;
402 }
403
404 ✗ return 0;
405 }
406
407 static const AVFilterPad extractplanes_inputs[] = {
408 {
409 .name = "default",
410 .type = AVMEDIA_TYPE_VIDEO,
411 .config_props = config_input,
412 },
413 };
414
415 const FFFilter ff_vf_extractplanes = {
416 .p.name = "extractplanes",
417 .p.description = NULL_IF_CONFIG_SMALL("Extract planes as grayscale frames."),
418 .p.priv_class = &extractplanes_class,
419 .p.outputs = NULL,
420 .p.flags = AVFILTER_FLAG_DYNAMIC_OUTPUTS,
421 .priv_size = sizeof(ExtractPlanesContext),
422 .init = init,
423 .activate = activate,
424 FILTER_INPUTS(extractplanes_inputs),
425 FILTER_QUERY_FUNC(query_formats),
426 };
427
428 #if CONFIG_ALPHAEXTRACT_FILTER
429
430 4 static av_cold int init_alphaextract(AVFilterContext *ctx)
431 {
432 4 ExtractPlanesContext *s = ctx->priv;
433
434 4 s->requested_planes = PLANE_A;
435 4 s->map[0] = 3;
436
437 4 return 0;
438 }
439
440 static const AVFilterPad alphaextract_outputs[] = {
441 {
442 .name = "default",
443 .type = AVMEDIA_TYPE_VIDEO,
444 .config_props = config_output,
445 },
446 };
447
448 const FFFilter ff_vf_alphaextract = {
449 .p.name = "alphaextract",
450 .p.description = NULL_IF_CONFIG_SMALL("Extract an alpha channel as a "
451 "grayscale image component."),
452 .priv_size = sizeof(ExtractPlanesContext),
453 .init = init_alphaextract,
454 .activate = activate,
455 FILTER_INPUTS(extractplanes_inputs),
456 FILTER_OUTPUTS(alphaextract_outputs),
457 FILTER_QUERY_FUNC(query_formats),
458 };
459 #endif /* CONFIG_ALPHAEXTRACT_FILTER */
460