FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/vf_extractplanes.c
Date: 2025-04-29 22:51:50
Exec Total Coverage
Lines: 103 171 60.2%
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
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 4 if (!ctx->inputs[0]->incfg.formats ||
164
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 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
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 4 if (be) {
173 ✗ in_pixfmts = in_pixfmts_be;
174 } else {
175 4 in_pixfmts = in_pixfmts_le;
176 }
177
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 4 if (!ctx->inputs[0]->outcfg.formats)
178
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 2 if ((ret = ff_formats_ref(ff_make_format_list(in_pixfmts), &ctx->inputs[0]->outcfg.formats)) < 0)
179 ✗ return ret;
180
181
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 27 for (i = 1; i < avff->nb_formats; i++) {
182 25 desc = av_pix_fmt_desc_get(avff->formats[i]);
183
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 25 if (depth != desc->comp[0].depth ||
184
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 23 be != (desc->flags & AV_PIX_FMT_FLAG_BE)) {
185 2 return AVERROR(EAGAIN);
186 }
187 }
188
189
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 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
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 4 for (i = 0; i < ctx->nb_outputs; i++)
217
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 2 if ((ret = ff_formats_ref(ff_make_format_list(out_pixfmts), &ctx->outputs[i]->incfg.formats)) < 0)
218 ✗ return ret;
219 2 return 0;
220 }
221
222 2 static int config_input(AVFilterLink *inlink)
223 {
224 2 AVFilterContext *ctx = inlink->dst;
225 2 ExtractPlanesContext *s = ctx->priv;
226 2 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
227 int plane_avail, ret, i;
228 uint8_t rgba_map[4];
229
230
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 3 plane_avail = ((desc->flags & AV_PIX_FMT_FLAG_RGB) ? PLANE_R|PLANE_G|PLANE_B :
231 1 PLANE_Y |
232
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 1 ((desc->nb_components > 2) ? PLANE_U|PLANE_V : 0)) |
233 2 ((desc->flags & AV_PIX_FMT_FLAG_ALPHA) ? PLANE_A : 0);
234
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 2 if (s->requested_planes & ~plane_avail) {
235 ✗ av_log(ctx, AV_LOG_ERROR, "Requested planes not available.\n");
236 ✗ return AVERROR(EINVAL);
237 }
238
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 2 if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
239 ✗ return ret;
240
241 2 s->depth = desc->comp[0].depth >> 3;
242 2 s->step = av_get_padded_bits_per_pixel(desc) >> 3;
243
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 3 s->is_packed = !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
244
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 1 (desc->nb_components > 1);
245
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 2 if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
246 1 ff_fill_rgba_map(rgba_map, inlink->format);
247
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 5 for (i = 0; i < 4; i++)
248 4 s->map[i] = rgba_map[s->map[i]];
249 }
250
251 2 return 0;
252 }
253
254 2 static int config_output(AVFilterLink *outlink)
255 {
256 2 AVFilterContext *ctx = outlink->src;
257 2 AVFilterLink *inlink = ctx->inputs[0];
258 2 ExtractPlanesContext *s = ctx->priv;
259 2 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
260 2 const int output = outlink->srcpad - ctx->output_pads;
261
262
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 2 if (s->map[output] == 1 || s->map[output] == 2) {
263 ✗ outlink->h = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
264 ✗ outlink->w = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
265 }
266
267 2 return 0;
268 }
269
270 50 static void extract_from_packed(uint8_t *dst, int dst_linesize,
271 const uint8_t *src, int src_linesize,
272 int width, int height,
273 int depth, int step, int comp)
274 {
275 int x, y;
276
277
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 14450 for (y = 0; y < height; y++) {
278
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 14400 switch (depth) {
279 14400 case 1:
280
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 5083200 for (x = 0; x < width; x++)
281 5068800 dst[x] = src[x * step + comp];
282 14400 break;
283 ✗ case 2:
284 ✗ for (x = 0; x < width; x++) {
285 ✗ dst[x * 2 ] = src[x * step + comp * 2 ];
286 ✗ dst[x * 2 + 1] = src[x * step + comp * 2 + 1];
287 }
288 ✗ break;
289 ✗ case 4:
290 ✗ for (x = 0; x < width; x++) {
291 ✗ dst[x * 4 ] = src[x * step + comp * 4 ];
292 ✗ dst[x * 4 + 1] = src[x * step + comp * 4 + 1];
293 ✗ dst[x * 4 + 2] = src[x * step + comp * 4 + 2];
294 ✗ dst[x * 4 + 3] = src[x * step + comp * 4 + 3];
295 }
296 ✗ break;
297 }
298 14400 dst += dst_linesize;
299 14400 src += src_linesize;
300 }
301 50 }
302
303 100 static int extract_plane(AVFilterLink *outlink, AVFrame *frame)
304 {
305 100 AVFilterContext *ctx = outlink->src;
306 100 ExtractPlanesContext *s = ctx->priv;
307 100 const int idx = s->map[FF_OUTLINK_IDX(outlink)];
308 AVFrame *out;
309
310 100 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
311
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 100 if (!out)
312 ✗ return AVERROR(ENOMEM);
313 100 av_frame_copy_props(out, frame);
314
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 100 if (idx == 3 /* alpha */)
315 100 out->color_range = AVCOL_RANGE_JPEG;
316
317
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 100 if (s->is_packed) {
318 50 extract_from_packed(out->data[0], out->linesize[0],
319 50 frame->data[0], frame->linesize[0],
320 outlink->w, outlink->h,
321 s->depth,
322 s->step, idx);
323 } else {
324 50 av_image_copy_plane(out->data[0], out->linesize[0],
325 50 frame->data[idx], frame->linesize[idx],
326 s->linesize[idx], outlink->h);
327 }
328
329 100 return ff_filter_frame(outlink, out);
330 }
331
332 202 static int activate(AVFilterContext *ctx)
333 {
334 202 AVFilterLink *inlink = ctx->inputs[0];
335 int status, ret;
336 AVFrame *in;
337 int64_t pts;
338
339
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 404 for (int i = 0; i < ctx->nb_outputs; i++) {
340
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 202 FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[i], ctx);
341 }
342
343 202 ret = ff_inlink_consume_frame(inlink, &in);
344
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 202 if (ret < 0)
345 ✗ return ret;
346
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 202 if (ret > 0) {
347
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 200 for (int i = 0; i < ctx->nb_outputs; i++) {
348
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 100 if (ff_outlink_get_status(ctx->outputs[i]))
349 ✗ continue;
350
351 100 ret = extract_plane(ctx->outputs[i], in);
352
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 100 if (ret < 0)
353 ✗ break;
354 }
355
356 100 av_frame_free(&in);
357
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 100 if (ret < 0)
358 ✗ return ret;
359 }
360
361
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 202 if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
362
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 4 for (int i = 0; i < ctx->nb_outputs; i++) {
363
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 2 if (ff_outlink_get_status(ctx->outputs[i]))
364 ✗ continue;
365 2 ff_outlink_set_status(ctx->outputs[i], status, pts);
366 }
367 2 return 0;
368 }
369
370
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 300 for (int i = 0; i < ctx->nb_outputs; i++) {
371
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 200 if (ff_outlink_get_status(ctx->outputs[i]))
372 ✗ continue;
373
374
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 200 if (ff_outlink_frame_wanted(ctx->outputs[i])) {
375 100 ff_inlink_request_frame(inlink);
376 100 return 0;
377 }
378 }
379
380 100 return FFERROR_NOT_READY;
381 }
382
383 ✗ static av_cold int init(AVFilterContext *ctx)
384 {
385 ✗ ExtractPlanesContext *s = ctx->priv;
386 ✗ int planes = (s->requested_planes & 0xf) | (s->requested_planes >> 4);
387 int i, ret;
388
389 ✗ for (i = 0; i < 4; i++) {
390 char *name;
391 ✗ AVFilterPad pad = { 0 };
392
393 ✗ if (!(planes & (1 << i)))
394 ✗ continue;
395
396 ✗ name = av_asprintf("out%d", ctx->nb_outputs);
397 ✗ if (!name)
398 ✗ return AVERROR(ENOMEM);
399 ✗ s->map[ctx->nb_outputs] = i;
400 ✗ pad.name = name;
401 ✗ pad.type = AVMEDIA_TYPE_VIDEO;
402 ✗ pad.config_props = config_output;
403
404 ✗ if ((ret = ff_append_outpad_free_name(ctx, &pad)) < 0)
405 ✗ return ret;
406 }
407
408 ✗ return 0;
409 }
410
411 static const AVFilterPad extractplanes_inputs[] = {
412 {
413 .name = "default",
414 .type = AVMEDIA_TYPE_VIDEO,
415 .config_props = config_input,
416 },
417 };
418
419 const FFFilter ff_vf_extractplanes = {
420 .p.name = "extractplanes",
421 .p.description = NULL_IF_CONFIG_SMALL("Extract planes as grayscale frames."),
422 .p.priv_class = &extractplanes_class,
423 .p.outputs = NULL,
424 .p.flags = AVFILTER_FLAG_DYNAMIC_OUTPUTS,
425 .priv_size = sizeof(ExtractPlanesContext),
426 .init = init,
427 .activate = activate,
428 FILTER_INPUTS(extractplanes_inputs),
429 FILTER_QUERY_FUNC(query_formats),
430 };
431
432 #if CONFIG_ALPHAEXTRACT_FILTER
433
434 4 static av_cold int init_alphaextract(AVFilterContext *ctx)
435 {
436 4 ExtractPlanesContext *s = ctx->priv;
437
438 4 s->requested_planes = PLANE_A;
439 4 s->map[0] = 3;
440
441 4 return 0;
442 }
443
444 static const AVFilterPad alphaextract_outputs[] = {
445 {
446 .name = "default",
447 .type = AVMEDIA_TYPE_VIDEO,
448 .config_props = config_output,
449 },
450 };
451
452 const FFFilter ff_vf_alphaextract = {
453 .p.name = "alphaextract",
454 .p.description = NULL_IF_CONFIG_SMALL("Extract an alpha channel as a "
455 "grayscale image component."),
456 .priv_size = sizeof(ExtractPlanesContext),
457 .init = init_alphaextract,
458 .activate = activate,
459 FILTER_INPUTS(extractplanes_inputs),
460 FILTER_OUTPUTS(alphaextract_outputs),
461 FILTER_QUERY_FUNC(query_formats),
462 };
463 #endif /* CONFIG_ALPHAEXTRACT_FILTER */
464