FFmpeg coverage

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 "libavutil/pixdesc.h"
22			#include "libavutil/opt.h"
23			#include "avfilter.h"
24			#include "filters.h"
25			#include "framesync.h"
26			#include "video.h"
27
28			enum EdgeMode {
29			EDGE_BLANK,
30			EDGE_SMEAR,
31			EDGE_WRAP,
32			EDGE_MIRROR,
33			EDGE_NB
34			};
35
36			typedef struct DisplaceContext {
37			const AVClass *class;
38			int width[4], height[4];
39			/* enum EdgeMode */
40			int edge;
41			int nb_planes;
42			int nb_components;
43			int step;
44			uint8_t blank[4];
45			FFFrameSync fs;
46
47			int (*displace_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
48			} DisplaceContext;
49
50			#define OFFSET(x) offsetof(DisplaceContext, x)
51			#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
52
53			static const AVOption displace_options[] = {
54			{ "edge", "set edge mode", OFFSET(edge), AV_OPT_TYPE_INT, {.i64=EDGE_SMEAR}, 0, EDGE_NB-1, FLAGS, .unit = "edge" },
55			{ "blank", "", 0, AV_OPT_TYPE_CONST, {.i64=EDGE_BLANK}, 0, 0, FLAGS, .unit = "edge" },
56			{ "smear", "", 0, AV_OPT_TYPE_CONST, {.i64=EDGE_SMEAR}, 0, 0, FLAGS, .unit = "edge" },
57			{ "wrap" , "", 0, AV_OPT_TYPE_CONST, {.i64=EDGE_WRAP}, 0, 0, FLAGS, .unit = "edge" },
58			{ "mirror" , "", 0, AV_OPT_TYPE_CONST, {.i64=EDGE_MIRROR}, 0, 0, FLAGS, .unit = "edge" },
59			{ NULL }
60			};
61
62			AVFILTER_DEFINE_CLASS(displace);
63
64			static const enum AVPixelFormat pix_fmts[] = {
65			AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
66			AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
67			AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
68			AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
69			AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
70			AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
71			AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
72			AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR, AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
73			AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
74			AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE
75			};
76
77			typedef struct ThreadData {
78			AVFrame *in, *xin, *yin, *out;
79			} ThreadData;
80
81		✗	static int displace_planar(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
82			{
83		✗	DisplaceContext *s = ctx->priv;
84		✗	const ThreadData *td = arg;
85		✗	const AVFrame *in = td->in;
86		✗	const AVFrame *xin = td->xin;
87		✗	const AVFrame *yin = td->yin;
88		✗	const AVFrame *out = td->out;
89
90		✗	for (int plane = 0; plane < s->nb_planes; plane++) {
91		✗	const int h = s->height[plane];
92		✗	const int w = s->width[plane];
93		✗	const int slice_start = (h * jobnr ) / nb_jobs;
94		✗	const int slice_end = (h * (jobnr+1)) / nb_jobs;
95		✗	const int dlinesize = out->linesize[plane];
96		✗	const int slinesize = in->linesize[plane];
97		✗	const int xlinesize = xin->linesize[plane];
98		✗	const int ylinesize = yin->linesize[plane];
99		✗	const uint8_t *src = in->data[plane];
100		✗	const uint8_t *ysrc = yin->data[plane] + slice_start * ylinesize;
101		✗	const uint8_t *xsrc = xin->data[plane] + slice_start * xlinesize;
102		✗	uint8_t *dst = out->data[plane] + slice_start * dlinesize;
103		✗	const uint8_t blank = s->blank[plane];
104
105		✗	for (int y = slice_start; y < slice_end; y++) {
106		✗	switch (s->edge) {
107		✗	case EDGE_BLANK:
108		✗	for (int x = 0; x < w; x++) {
109		✗	int Y = y + ysrc[x] - 128;
110		✗	int X = x + xsrc[x] - 128;
111
112		✗	if (Y < 0 || Y >= h || X < 0 || X >= w)
113		✗	dst[x] = blank;
114			else
115		✗	dst[x] = src[Y * slinesize + X];
116			}
117		✗	break;
118		✗	case EDGE_SMEAR:
119		✗	for (int x = 0; x < w; x++) {
120		✗	int Y = av_clip(y + ysrc[x] - 128, 0, h - 1);
121		✗	int X = av_clip(x + xsrc[x] - 128, 0, w - 1);
122		✗	dst[x] = src[Y * slinesize + X];
123			}
124		✗	break;
125		✗	case EDGE_WRAP:
126		✗	for (int x = 0; x < w; x++) {
127		✗	int Y = (y + ysrc[x] - 128) % h;
128		✗	int X = (x + xsrc[x] - 128) % w;
129
130		✗	if (Y < 0)
131		✗	Y += h;
132		✗	if (X < 0)
133		✗	X += w;
134		✗	dst[x] = src[Y * slinesize + X];
135			}
136		✗	break;
137		✗	case EDGE_MIRROR:
138		✗	for (int x = 0; x < w; x++) {
139		✗	int Y = y + ysrc[x] - 128;
140		✗	int X = x + xsrc[x] - 128;
141
142		✗	if (Y < 0)
143		✗	Y = (-Y) % h;
144		✗	if (X < 0)
145		✗	X = (-X) % w;
146		✗	if (Y >= h)
147		✗	Y = h - (Y % h) - 1;
148		✗	if (X >= w)
149		✗	X = w - (X % w) - 1;
150		✗	dst[x] = src[Y * slinesize + X];
151			}
152		✗	break;
153			}
154
155		✗	ysrc += ylinesize;
156		✗	xsrc += xlinesize;
157		✗	dst += dlinesize;
158			}
159			}
160		✗	return 0;
161			}
162
163		✗	static int displace_packed(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
164			{
165		✗	DisplaceContext *s = ctx->priv;
166		✗	const ThreadData *td = arg;
167		✗	const AVFrame *in = td->in;
168		✗	const AVFrame *xin = td->xin;
169		✗	const AVFrame *yin = td->yin;
170		✗	const AVFrame *out = td->out;
171		✗	const int step = s->step;
172		✗	const int h = s->height[0];
173		✗	const int w = s->width[0];
174		✗	const int slice_start = (h * jobnr ) / nb_jobs;
175		✗	const int slice_end = (h * (jobnr+1)) / nb_jobs;
176		✗	const int dlinesize = out->linesize[0];
177		✗	const int slinesize = in->linesize[0];
178		✗	const int xlinesize = xin->linesize[0];
179		✗	const int ylinesize = yin->linesize[0];
180		✗	const uint8_t *src = in->data[0];
181		✗	const uint8_t *ysrc = yin->data[0] + slice_start * ylinesize;
182		✗	const uint8_t *xsrc = xin->data[0] + slice_start * xlinesize;
183		✗	uint8_t *dst = out->data[0] + slice_start * dlinesize;
184		✗	const uint8_t *blank = s->blank;
185
186		✗	for (int y = slice_start; y < slice_end; y++) {
187		✗	switch (s->edge) {
188		✗	case EDGE_BLANK:
189		✗	for (int x = 0; x < w; x++) {
190		✗	for (int c = 0; c < s->nb_components; c++) {
191		✗	int Y = y + (ysrc[x * step + c] - 128);
192		✗	int X = x + (xsrc[x * step + c] - 128);
193
194		✗	if (Y < 0 || Y >= h || X < 0 || X >= w)
195		✗	dst[x * step + c] = blank[c];
196			else
197		✗	dst[x * step + c] = src[Y * slinesize + X * step + c];
198			}
199			}
200		✗	break;
201		✗	case EDGE_SMEAR:
202		✗	for (int x = 0; x < w; x++) {
203		✗	for (int c = 0; c < s->nb_components; c++) {
204		✗	int Y = av_clip(y + (ysrc[x * step + c] - 128), 0, h - 1);
205		✗	int X = av_clip(x + (xsrc[x * step + c] - 128), 0, w - 1);
206
207		✗	dst[x * step + c] = src[Y * slinesize + X * step + c];
208			}
209			}
210		✗	break;
211		✗	case EDGE_WRAP:
212		✗	for (int x = 0; x < w; x++) {
213		✗	for (int c = 0; c < s->nb_components; c++) {
214		✗	int Y = (y + (ysrc[x * step + c] - 128)) % h;
215		✗	int X = (x + (xsrc[x * step + c] - 128)) % w;
216
217		✗	if (Y < 0)
218		✗	Y += h;
219		✗	if (X < 0)
220		✗	X += w;
221		✗	dst[x * step + c] = src[Y * slinesize + X * step + c];
222			}
223			}
224		✗	break;
225		✗	case EDGE_MIRROR:
226		✗	for (int x = 0; x < w; x++) {
227		✗	for (int c = 0; c < s->nb_components; c++) {
228		✗	int Y = y + ysrc[x * step + c] - 128;
229		✗	int X = x + xsrc[x * step + c] - 128;
230
231		✗	if (Y < 0)
232		✗	Y = (-Y) % h;
233		✗	if (X < 0)
234		✗	X = (-X) % w;
235		✗	if (Y >= h)
236		✗	Y = h - (Y % h) - 1;
237		✗	if (X >= w)
238		✗	X = w - (X % w) - 1;
239		✗	dst[x * step + c] = src[Y * slinesize + X * step + c];
240			}
241			}
242		✗	break;
243			}
244
245		✗	ysrc += ylinesize;
246		✗	xsrc += xlinesize;
247		✗	dst += dlinesize;
248			}
249		✗	return 0;
250			}
251
252		✗	static int process_frame(FFFrameSync *fs)
253			{
254		✗	AVFilterContext *ctx = fs->parent;
255		✗	DisplaceContext *s = fs->opaque;
256		✗	AVFilterLink *outlink = ctx->outputs[0];
257			AVFrame *out, *in, *xin, *yin;
258			int ret;
259
260		✗	if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 ||
261		✗	(ret = ff_framesync_get_frame(&s->fs, 1, &xin, 0)) < 0 ||
262		✗	(ret = ff_framesync_get_frame(&s->fs, 2, &yin, 0)) < 0)
263		✗	return ret;
264
265		✗	if (ctx->is_disabled) {
266		✗	out = av_frame_clone(in);
267		✗	if (!out)
268		✗	return AVERROR(ENOMEM);
269			} else {
270			ThreadData td;
271
272		✗	out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
273		✗	if (!out)
274		✗	return AVERROR(ENOMEM);
275		✗	av_frame_copy_props(out, in);
276
277		✗	td.in = in;
278		✗	td.xin = xin;
279		✗	td.yin = yin;
280		✗	td.out = out;
281		✗	ff_filter_execute(ctx, s->displace_slice, &td, NULL,
282		✗	FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
283			}
284		✗	out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
285
286		✗	return ff_filter_frame(outlink, out);
287			}
288
289		✗	static int config_input(AVFilterLink *inlink)
290			{
291		✗	AVFilterContext *ctx = inlink->dst;
292		✗	DisplaceContext *s = ctx->priv;
293		✗	const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
294			int vsub, hsub;
295
296		✗	s->nb_planes = av_pix_fmt_count_planes(inlink->format);
297		✗	s->nb_components = desc->nb_components;
298
299		✗	if (s->nb_planes > 1 || s->nb_components == 1)
300		✗	s->displace_slice = displace_planar;
301			else
302		✗	s->displace_slice = displace_packed;
303
304		✗	if (!(desc->flags & AV_PIX_FMT_FLAG_RGB)) {
305		✗	s->blank[1] = s->blank[2] = 128;
306		✗	s->blank[0] = 16;
307			}
308
309		✗	s->step = av_get_padded_bits_per_pixel(desc) >> 3;
310		✗	hsub = desc->log2_chroma_w;
311		✗	vsub = desc->log2_chroma_h;
312		✗	s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
313		✗	s->height[0] = s->height[3] = inlink->h;
314		✗	s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
315		✗	s->width[0] = s->width[3] = inlink->w;
316
317		✗	return 0;
318			}
319
320		✗	static int config_output(AVFilterLink *outlink)
321			{
322		✗	FilterLink *outl = ff_filter_link(outlink);
323		✗	AVFilterContext *ctx = outlink->src;
324		✗	DisplaceContext *s = ctx->priv;
325		✗	AVFilterLink *srclink = ctx->inputs[0];
326		✗	FilterLink *sl = ff_filter_link(srclink);
327		✗	AVFilterLink *xlink = ctx->inputs[1];
328		✗	AVFilterLink *ylink = ctx->inputs[2];
329			FFFrameSyncIn *in;
330			int ret;
331
332		✗	if (srclink->w != xlink->w ||
333		✗	srclink->h != xlink->h ||
334		✗	srclink->w != ylink->w ||
335		✗	srclink->h != ylink->h) {
336		✗	av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
337			"(size %dx%d) do not match the corresponding "
338			"second input link %s parameters (%dx%d) "
339			"and/or third input link %s parameters (%dx%d)\n",
340		✗	ctx->input_pads[0].name, srclink->w, srclink->h,
341		✗	ctx->input_pads[1].name, xlink->w, xlink->h,
342		✗	ctx->input_pads[2].name, ylink->w, ylink->h);
343		✗	return AVERROR(EINVAL);
344			}
345
346		✗	outlink->w = srclink->w;
347		✗	outlink->h = srclink->h;
348		✗	outlink->sample_aspect_ratio = srclink->sample_aspect_ratio;
349		✗	outl->frame_rate = sl->frame_rate;
350
351		✗	ret = ff_framesync_init(&s->fs, ctx, 3);
352		✗	if (ret < 0)
353		✗	return ret;
354
355		✗	in = s->fs.in;
356		✗	in[0].time_base = srclink->time_base;
357		✗	in[1].time_base = xlink->time_base;
358		✗	in[2].time_base = ylink->time_base;
359		✗	in[0].sync = 2;
360		✗	in[0].before = EXT_STOP;
361		✗	in[0].after = EXT_STOP;
362		✗	in[1].sync = 1;
363		✗	in[1].before = EXT_NULL;
364		✗	in[1].after = EXT_INFINITY;
365		✗	in[2].sync = 1;
366		✗	in[2].before = EXT_NULL;
367		✗	in[2].after = EXT_INFINITY;
368		✗	s->fs.opaque = s;
369		✗	s->fs.on_event = process_frame;
370
371		✗	ret = ff_framesync_configure(&s->fs);
372		✗	outlink->time_base = s->fs.time_base;
373
374		✗	return ret;
375			}
376
377		✗	static int activate(AVFilterContext *ctx)
378			{
379		✗	DisplaceContext *s = ctx->priv;
380		✗	return ff_framesync_activate(&s->fs);
381			}
382
383		✗	static av_cold void uninit(AVFilterContext *ctx)
384			{
385		✗	DisplaceContext *s = ctx->priv;
386
387		✗	ff_framesync_uninit(&s->fs);
388		✗	}
389
390			static const AVFilterPad displace_inputs[] = {
391			{
392			.name = "source",
393			.type = AVMEDIA_TYPE_VIDEO,
394			.config_props = config_input,
395			},
396			{
397			.name = "xmap",
398			.type = AVMEDIA_TYPE_VIDEO,
399			},
400			{
401			.name = "ymap",
402			.type = AVMEDIA_TYPE_VIDEO,
403			},
404			};
405
406			static const AVFilterPad displace_outputs[] = {
407			{
408			.name = "default",
409			.type = AVMEDIA_TYPE_VIDEO,
410			.config_props = config_output,
411			},
412			};
413
414			const FFFilter ff_vf_displace = {
415			.p.name = "displace",
416			.p.description = NULL_IF_CONFIG_SMALL("Displace pixels."),
417			.p.priv_class = &displace_class,
418			.p.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
419			AVFILTER_FLAG_SLICE_THREADS,
420			.priv_size = sizeof(DisplaceContext),
421			.uninit = uninit,
422			.activate = activate,
423			FILTER_INPUTS(displace_inputs),
424			FILTER_OUTPUTS(displace_outputs),
425			FILTER_PIXFMTS_ARRAY(pix_fmts),
426			.process_command = ff_filter_process_command,
427			};
428