avcodec/cavsdsp: use av_clip_uint8() for idct
[ffmpeg.git] / libavfilter / vf_maskedclamp.c
1 /*
2  * Copyright (c) 2016 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/imgutils.h"
22 #include "libavutil/pixdesc.h"
23 #include "libavutil/opt.h"
24 #include "avfilter.h"
25 #include "formats.h"
26 #include "internal.h"
27 #include "video.h"
28 #include "framesync.h"
29
30 #define OFFSET(x) offsetof(MaskedClampContext, x)
31 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
32
33 typedef struct MaskedClampContext {
34     const AVClass *class;
35
36     int planes;
37     int undershoot;
38     int overshoot;
39
40     int width[4], height[4];
41     int nb_planes;
42     int depth;
43     FFFrameSync fs;
44
45     void (*maskedclamp)(const uint8_t *bsrc, const uint8_t *osrc,
46                         const uint8_t *msrc, uint8_t *dst,
47                         ptrdiff_t blinesize, ptrdiff_t darklinesize,
48                         ptrdiff_t brightlinesize, ptrdiff_t destlinesize,
49                         int w, int h, int undershoot, int overshoot);
50 } MaskedClampContext;
51
52 static const AVOption maskedclamp_options[] = {
53     { "undershoot", "set undershoot", OFFSET(undershoot), AV_OPT_TYPE_INT, {.i64=0},   0, INT_MAX, FLAGS },
54     { "overshoot",  "set overshoot",  OFFSET(overshoot),  AV_OPT_TYPE_INT, {.i64=0},   0, INT_MAX, FLAGS },
55     { "planes",     "set planes",     OFFSET(planes),     AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF,     FLAGS },
56     { NULL }
57 };
58
59 AVFILTER_DEFINE_CLASS(maskedclamp);
60
61 static int query_formats(AVFilterContext *ctx)
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_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
70         AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
71         AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
72         AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
73         AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
74         AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
75         AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
76         AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
77         AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
78         AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
79         AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
80         AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16,
81         AV_PIX_FMT_NONE
82     };
83
84     return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
85 }
86
87 static int process_frame(FFFrameSync *fs)
88 {
89     AVFilterContext *ctx = fs->parent;
90     MaskedClampContext *s = fs->opaque;
91     AVFilterLink *outlink = ctx->outputs[0];
92     AVFrame *out, *base, *dark, *bright;
93     int ret;
94
95     if ((ret = ff_framesync_get_frame(&s->fs, 0, &base,   0)) < 0 ||
96         (ret = ff_framesync_get_frame(&s->fs, 1, &dark,   0)) < 0 ||
97         (ret = ff_framesync_get_frame(&s->fs, 2, &bright, 0)) < 0)
98         return ret;
99
100     if (ctx->is_disabled) {
101         out = av_frame_clone(base);
102         if (!out)
103             return AVERROR(ENOMEM);
104     } else {
105         int p;
106
107         out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
108         if (!out)
109             return AVERROR(ENOMEM);
110         av_frame_copy_props(out, base);
111
112         for (p = 0; p < s->nb_planes; p++) {
113             if (!((1 << p) & s->planes)) {
114                 av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],
115                                     s->width[p], s->height[p]);
116                 continue;
117             }
118
119             s->maskedclamp(base->data[p], dark->data[p],
120                            bright->data[p], out->data[p],
121                            base->linesize[p], dark->linesize[p],
122                            bright->linesize[p], out->linesize[p],
123                            s->width[p], s->height[p],
124                            s->undershoot, s->overshoot);
125         }
126     }
127     out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
128
129     return ff_filter_frame(outlink, out);
130 }
131
132 static void maskedclamp8(const uint8_t *bsrc, const uint8_t *darksrc,
133                          const uint8_t *brightsrc, uint8_t *dst,
134                          ptrdiff_t blinesize, ptrdiff_t darklinesize,
135                          ptrdiff_t brightlinesize, ptrdiff_t dlinesize,
136                          int w, int h,
137                          int undershoot, int overshoot)
138 {
139     int x, y;
140
141     for (y = 0; y < h; y++) {
142         for (x = 0; x < w; x++) {
143             if (bsrc[x] < darksrc[x] - undershoot)
144                 dst[x] = darksrc[x] - undershoot;
145             else if (bsrc[x] > brightsrc[x] + overshoot)
146                 dst[x] = brightsrc[x] + overshoot;
147             else
148                 dst[x] = bsrc[x];
149         }
150
151         dst  += dlinesize;
152         bsrc += blinesize;
153         darksrc += darklinesize;
154         brightsrc += brightlinesize;
155     }
156 }
157
158 static void maskedclamp16(const uint8_t *bbsrc, const uint8_t *oosrc,
159                           const uint8_t *mmsrc, uint8_t *ddst,
160                           ptrdiff_t blinesize, ptrdiff_t darklinesize,
161                           ptrdiff_t brightlinesize, ptrdiff_t dlinesize,
162                           int w, int h,
163                           int undershoot, int overshoot)
164 {
165     const uint16_t *bsrc = (const uint16_t *)bbsrc;
166     const uint16_t *darksrc = (const uint16_t *)oosrc;
167     const uint16_t *brightsrc = (const uint16_t *)mmsrc;
168     uint16_t *dst = (uint16_t *)ddst;
169     int x, y;
170
171     dlinesize /= 2;
172     blinesize /= 2;
173     darklinesize /= 2;
174     brightlinesize /= 2;
175
176     for (y = 0; y < h; y++) {
177         for (x = 0; x < w; x++) {
178             if (bsrc[x] < darksrc[x] - undershoot)
179                 dst[x] = darksrc[x] - undershoot;
180             else if (bsrc[x] > brightsrc[x] + overshoot)
181                 dst[x] = brightsrc[x] + overshoot;
182             else
183                 dst[x] = bsrc[x];
184         }
185
186         dst  += dlinesize;
187         bsrc += blinesize;
188         darksrc += darklinesize;
189         brightsrc += brightlinesize;
190     }
191 }
192
193 static int config_input(AVFilterLink *inlink)
194 {
195     AVFilterContext *ctx = inlink->dst;
196     MaskedClampContext *s = ctx->priv;
197     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
198     int vsub, hsub;
199
200     s->nb_planes = av_pix_fmt_count_planes(inlink->format);
201
202     hsub = desc->log2_chroma_w;
203     vsub = desc->log2_chroma_h;
204     s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
205     s->height[0] = s->height[3] = inlink->h;
206     s->width[1]  = s->width[2]  = AV_CEIL_RSHIFT(inlink->w, hsub);
207     s->width[0]  = s->width[3]  = inlink->w;
208
209     s->depth = desc->comp[0].depth;
210
211     if (desc->comp[0].depth == 8)
212         s->maskedclamp = maskedclamp8;
213     else
214         s->maskedclamp = maskedclamp16;
215
216     return 0;
217 }
218
219 static int config_output(AVFilterLink *outlink)
220 {
221     AVFilterContext *ctx = outlink->src;
222     MaskedClampContext *s = ctx->priv;
223     AVFilterLink *base = ctx->inputs[0];
224     AVFilterLink *dark = ctx->inputs[1];
225     AVFilterLink *bright = ctx->inputs[2];
226     FFFrameSyncIn *in;
227     int ret;
228
229     if (base->format != dark->format ||
230         base->format != bright->format) {
231         av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
232         return AVERROR(EINVAL);
233     }
234     if (base->w                       != dark->w ||
235         base->h                       != dark->h ||
236         base->sample_aspect_ratio.num != dark->sample_aspect_ratio.num ||
237         base->sample_aspect_ratio.den != dark->sample_aspect_ratio.den ||
238         base->w                       != bright->w ||
239         base->h                       != bright->h ||
240         base->sample_aspect_ratio.num != bright->sample_aspect_ratio.num ||
241         base->sample_aspect_ratio.den != bright->sample_aspect_ratio.den) {
242         av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
243                "(size %dx%d, SAR %d:%d) do not match the corresponding "
244                "second input link %s parameters (%dx%d, SAR %d:%d) "
245                "and/or third input link %s parameters (%dx%d, SAR %d:%d)\n",
246                ctx->input_pads[0].name, base->w, base->h,
247                base->sample_aspect_ratio.num,
248                base->sample_aspect_ratio.den,
249                ctx->input_pads[1].name, dark->w, dark->h,
250                dark->sample_aspect_ratio.num,
251                dark->sample_aspect_ratio.den,
252                ctx->input_pads[2].name, bright->w, bright->h,
253                bright->sample_aspect_ratio.num,
254                bright->sample_aspect_ratio.den);
255         return AVERROR(EINVAL);
256     }
257
258     outlink->w = base->w;
259     outlink->h = base->h;
260     outlink->time_base = base->time_base;
261     outlink->sample_aspect_ratio = base->sample_aspect_ratio;
262     outlink->frame_rate = base->frame_rate;
263
264     if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
265         return ret;
266
267     in = s->fs.in;
268     in[0].time_base = base->time_base;
269     in[1].time_base = dark->time_base;
270     in[2].time_base = bright->time_base;
271     in[0].sync   = 1;
272     in[0].before = EXT_STOP;
273     in[0].after  = EXT_INFINITY;
274     in[1].sync   = 1;
275     in[1].before = EXT_STOP;
276     in[1].after  = EXT_INFINITY;
277     in[2].sync   = 1;
278     in[2].before = EXT_STOP;
279     in[2].after  = EXT_INFINITY;
280     s->fs.opaque   = s;
281     s->fs.on_event = process_frame;
282
283     return ff_framesync_configure(&s->fs);
284 }
285
286 static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
287 {
288     MaskedClampContext *s = inlink->dst->priv;
289     return ff_framesync_filter_frame(&s->fs, inlink, buf);
290 }
291
292 static int request_frame(AVFilterLink *outlink)
293 {
294     MaskedClampContext *s = outlink->src->priv;
295     return ff_framesync_request_frame(&s->fs, outlink);
296 }
297
298 static av_cold void uninit(AVFilterContext *ctx)
299 {
300     MaskedClampContext *s = ctx->priv;
301
302     ff_framesync_uninit(&s->fs);
303 }
304
305 static const AVFilterPad maskedclamp_inputs[] = {
306     {
307         .name         = "base",
308         .type         = AVMEDIA_TYPE_VIDEO,
309         .filter_frame = filter_frame,
310         .config_props = config_input,
311     },
312     {
313         .name         = "dark",
314         .type         = AVMEDIA_TYPE_VIDEO,
315         .filter_frame = filter_frame,
316     },
317     {
318         .name         = "bright",
319         .type         = AVMEDIA_TYPE_VIDEO,
320         .filter_frame = filter_frame,
321     },
322     { NULL }
323 };
324
325 static const AVFilterPad maskedclamp_outputs[] = {
326     {
327         .name          = "default",
328         .type          = AVMEDIA_TYPE_VIDEO,
329         .config_props  = config_output,
330         .request_frame = request_frame,
331     },
332     { NULL }
333 };
334
335 AVFilter ff_vf_maskedclamp = {
336     .name          = "maskedclamp",
337     .description   = NULL_IF_CONFIG_SMALL("Clamp first stream with second stream and third stream."),
338     .priv_size     = sizeof(MaskedClampContext),
339     .uninit        = uninit,
340     .query_formats = query_formats,
341     .inputs        = maskedclamp_inputs,
342     .outputs       = maskedclamp_outputs,
343     .priv_class    = &maskedclamp_class,
344     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
345 };