郝东文副区长夜查我区城棚改铁腕治霾、城市治理工作

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