LCOV - code coverage report
Current view: top level - libavfilter - vf_maskedclamp.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 127 0.0 %
Date: 2017-12-16 13:57:32 Functions: 0 8 0.0 %

          Line data    Source code
       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 linesize[4];
      41             :     int width[4], height[4];
      42             :     int nb_planes;
      43             :     int depth;
      44             :     FFFrameSync fs;
      45             : 
      46             :     void (*maskedclamp)(const uint8_t *bsrc, const uint8_t *osrc,
      47             :                         const uint8_t *msrc, uint8_t *dst,
      48             :                         ptrdiff_t blinesize, ptrdiff_t darklinesize,
      49             :                         ptrdiff_t brightlinesize, ptrdiff_t destlinesize,
      50             :                         int w, int h, int undershoot, int overshoot);
      51             : } MaskedClampContext;
      52             : 
      53             : static const AVOption maskedclamp_options[] = {
      54             :     { "undershoot", "set undershoot", OFFSET(undershoot), AV_OPT_TYPE_INT, {.i64=0},   0, UINT16_MAX, FLAGS },
      55             :     { "overshoot",  "set overshoot",  OFFSET(overshoot),  AV_OPT_TYPE_INT, {.i64=0},   0, UINT16_MAX, FLAGS },
      56             :     { "planes",     "set planes",     OFFSET(planes),     AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF,        FLAGS },
      57             :     { NULL }
      58             : };
      59             : 
      60             : AVFILTER_DEFINE_CLASS(maskedclamp);
      61             : 
      62           0 : static int query_formats(AVFilterContext *ctx)
      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_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
      71             :         AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
      72             :         AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
      73             :         AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
      74             :         AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
      75             :         AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
      76             :         AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
      77             :         AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
      78             :         AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
      79             :         AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
      80             :         AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
      81             :         AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY16,
      82             :         AV_PIX_FMT_NONE
      83             :     };
      84             : 
      85           0 :     return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
      86             : }
      87             : 
      88           0 : static int process_frame(FFFrameSync *fs)
      89             : {
      90           0 :     AVFilterContext *ctx = fs->parent;
      91           0 :     MaskedClampContext *s = fs->opaque;
      92           0 :     AVFilterLink *outlink = ctx->outputs[0];
      93             :     AVFrame *out, *base, *dark, *bright;
      94             :     int ret;
      95             : 
      96           0 :     if ((ret = ff_framesync_get_frame(&s->fs, 0, &base,   0)) < 0 ||
      97           0 :         (ret = ff_framesync_get_frame(&s->fs, 1, &dark,   0)) < 0 ||
      98           0 :         (ret = ff_framesync_get_frame(&s->fs, 2, &bright, 0)) < 0)
      99           0 :         return ret;
     100             : 
     101           0 :     if (ctx->is_disabled) {
     102           0 :         out = av_frame_clone(base);
     103           0 :         if (!out)
     104           0 :             return AVERROR(ENOMEM);
     105             :     } else {
     106             :         int p;
     107             : 
     108           0 :         out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
     109           0 :         if (!out)
     110           0 :             return AVERROR(ENOMEM);
     111           0 :         av_frame_copy_props(out, base);
     112             : 
     113           0 :         for (p = 0; p < s->nb_planes; p++) {
     114           0 :             if (!((1 << p) & s->planes)) {
     115           0 :                 av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],
     116             :                                     s->linesize[p], s->height[p]);
     117           0 :                 continue;
     118             :             }
     119             : 
     120           0 :             s->maskedclamp(base->data[p], dark->data[p],
     121           0 :                            bright->data[p], out->data[p],
     122           0 :                            base->linesize[p], dark->linesize[p],
     123           0 :                            bright->linesize[p], out->linesize[p],
     124             :                            s->width[p], s->height[p],
     125             :                            s->undershoot, s->overshoot);
     126             :         }
     127             :     }
     128           0 :     out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
     129             : 
     130           0 :     return ff_filter_frame(outlink, out);
     131             : }
     132             : 
     133           0 : static void maskedclamp8(const uint8_t *bsrc, const uint8_t *darksrc,
     134             :                          const uint8_t *brightsrc, uint8_t *dst,
     135             :                          ptrdiff_t blinesize, ptrdiff_t darklinesize,
     136             :                          ptrdiff_t brightlinesize, ptrdiff_t dlinesize,
     137             :                          int w, int h,
     138             :                          int undershoot, int overshoot)
     139             : {
     140             :     int x, y;
     141             : 
     142           0 :     for (y = 0; y < h; y++) {
     143           0 :         for (x = 0; x < w; x++) {
     144           0 :             if (bsrc[x] < darksrc[x] - undershoot)
     145           0 :                 dst[x] = darksrc[x] - undershoot;
     146           0 :             else if (bsrc[x] > brightsrc[x] + overshoot)
     147           0 :                 dst[x] = brightsrc[x] + overshoot;
     148             :             else
     149           0 :                 dst[x] = bsrc[x];
     150             :         }
     151             : 
     152           0 :         dst  += dlinesize;
     153           0 :         bsrc += blinesize;
     154           0 :         darksrc += darklinesize;
     155           0 :         brightsrc += brightlinesize;
     156             :     }
     157           0 : }
     158             : 
     159           0 : static void maskedclamp16(const uint8_t *bbsrc, const uint8_t *oosrc,
     160             :                           const uint8_t *mmsrc, uint8_t *ddst,
     161             :                           ptrdiff_t blinesize, ptrdiff_t darklinesize,
     162             :                           ptrdiff_t brightlinesize, ptrdiff_t dlinesize,
     163             :                           int w, int h,
     164             :                           int undershoot, int overshoot)
     165             : {
     166           0 :     const uint16_t *bsrc = (const uint16_t *)bbsrc;
     167           0 :     const uint16_t *darksrc = (const uint16_t *)oosrc;
     168           0 :     const uint16_t *brightsrc = (const uint16_t *)mmsrc;
     169           0 :     uint16_t *dst = (uint16_t *)ddst;
     170             :     int x, y;
     171             : 
     172           0 :     dlinesize /= 2;
     173           0 :     blinesize /= 2;
     174           0 :     darklinesize /= 2;
     175           0 :     brightlinesize /= 2;
     176             : 
     177           0 :     for (y = 0; y < h; y++) {
     178           0 :         for (x = 0; x < w; x++) {
     179           0 :             if (bsrc[x] < darksrc[x] - undershoot)
     180           0 :                 dst[x] = darksrc[x] - undershoot;
     181           0 :             else if (bsrc[x] > brightsrc[x] + overshoot)
     182           0 :                 dst[x] = brightsrc[x] + overshoot;
     183             :             else
     184           0 :                 dst[x] = bsrc[x];
     185             :         }
     186             : 
     187           0 :         dst  += dlinesize;
     188           0 :         bsrc += blinesize;
     189           0 :         darksrc += darklinesize;
     190           0 :         brightsrc += brightlinesize;
     191             :     }
     192           0 : }
     193             : 
     194           0 : static int config_input(AVFilterLink *inlink)
     195             : {
     196           0 :     AVFilterContext *ctx = inlink->dst;
     197           0 :     MaskedClampContext *s = ctx->priv;
     198           0 :     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
     199             :     int vsub, hsub, ret;
     200             : 
     201           0 :     s->nb_planes = av_pix_fmt_count_planes(inlink->format);
     202             : 
     203           0 :     if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
     204           0 :         return ret;
     205             : 
     206           0 :     hsub = desc->log2_chroma_w;
     207           0 :     vsub = desc->log2_chroma_h;
     208           0 :     s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
     209           0 :     s->height[0] = s->height[3] = inlink->h;
     210           0 :     s->width[1]  = s->width[2]  = AV_CEIL_RSHIFT(inlink->w, hsub);
     211           0 :     s->width[0]  = s->width[3]  = inlink->w;
     212             : 
     213           0 :     s->depth = desc->comp[0].depth;
     214             : 
     215           0 :     if (desc->comp[0].depth == 8)
     216           0 :         s->maskedclamp = maskedclamp8;
     217             :     else
     218           0 :         s->maskedclamp = maskedclamp16;
     219             : 
     220           0 :     return 0;
     221             : }
     222             : 
     223           0 : static int config_output(AVFilterLink *outlink)
     224             : {
     225           0 :     AVFilterContext *ctx = outlink->src;
     226           0 :     MaskedClampContext *s = ctx->priv;
     227           0 :     AVFilterLink *base = ctx->inputs[0];
     228           0 :     AVFilterLink *dark = ctx->inputs[1];
     229           0 :     AVFilterLink *bright = ctx->inputs[2];
     230             :     FFFrameSyncIn *in;
     231             :     int ret;
     232             : 
     233           0 :     if (base->format != dark->format ||
     234           0 :         base->format != bright->format) {
     235           0 :         av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
     236           0 :         return AVERROR(EINVAL);
     237             :     }
     238           0 :     if (base->w != dark->w   || base->h != dark->h ||
     239           0 :         base->w != bright->w || base->h != bright->h) {
     240           0 :         av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
     241             :                "(size %dx%d) do not match the corresponding "
     242             :                "second input link %s parameters (%dx%d) "
     243             :                "and/or third input link %s parameters (size %dx%d)\n",
     244           0 :                ctx->input_pads[0].name, base->w, base->h,
     245           0 :                ctx->input_pads[1].name, dark->w, dark->h,
     246           0 :                ctx->input_pads[2].name, bright->w, bright->h);
     247           0 :         return AVERROR(EINVAL);
     248             :     }
     249             : 
     250           0 :     outlink->w = base->w;
     251           0 :     outlink->h = base->h;
     252           0 :     outlink->time_base = base->time_base;
     253           0 :     outlink->sample_aspect_ratio = base->sample_aspect_ratio;
     254           0 :     outlink->frame_rate = base->frame_rate;
     255             : 
     256           0 :     if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
     257           0 :         return ret;
     258             : 
     259           0 :     in = s->fs.in;
     260           0 :     in[0].time_base = base->time_base;
     261           0 :     in[1].time_base = dark->time_base;
     262           0 :     in[2].time_base = bright->time_base;
     263           0 :     in[0].sync   = 1;
     264           0 :     in[0].before = EXT_STOP;
     265           0 :     in[0].after  = EXT_INFINITY;
     266           0 :     in[1].sync   = 1;
     267           0 :     in[1].before = EXT_STOP;
     268           0 :     in[1].after  = EXT_INFINITY;
     269           0 :     in[2].sync   = 1;
     270           0 :     in[2].before = EXT_STOP;
     271           0 :     in[2].after  = EXT_INFINITY;
     272           0 :     s->fs.opaque   = s;
     273           0 :     s->fs.on_event = process_frame;
     274             : 
     275           0 :     return ff_framesync_configure(&s->fs);
     276             : }
     277             : 
     278           0 : static int activate(AVFilterContext *ctx)
     279             : {
     280           0 :     MaskedClampContext *s = ctx->priv;
     281           0 :     return ff_framesync_activate(&s->fs);
     282             : }
     283             : 
     284           0 : static av_cold void uninit(AVFilterContext *ctx)
     285             : {
     286           0 :     MaskedClampContext *s = ctx->priv;
     287             : 
     288           0 :     ff_framesync_uninit(&s->fs);
     289           0 : }
     290             : 
     291             : static const AVFilterPad maskedclamp_inputs[] = {
     292             :     {
     293             :         .name         = "base",
     294             :         .type         = AVMEDIA_TYPE_VIDEO,
     295             :         .config_props = config_input,
     296             :     },
     297             :     {
     298             :         .name         = "dark",
     299             :         .type         = AVMEDIA_TYPE_VIDEO,
     300             :     },
     301             :     {
     302             :         .name         = "bright",
     303             :         .type         = AVMEDIA_TYPE_VIDEO,
     304             :     },
     305             :     { NULL }
     306             : };
     307             : 
     308             : static const AVFilterPad maskedclamp_outputs[] = {
     309             :     {
     310             :         .name          = "default",
     311             :         .type          = AVMEDIA_TYPE_VIDEO,
     312             :         .config_props  = config_output,
     313             :     },
     314             :     { NULL }
     315             : };
     316             : 
     317             : AVFilter ff_vf_maskedclamp = {
     318             :     .name          = "maskedclamp",
     319             :     .description   = NULL_IF_CONFIG_SMALL("Clamp first stream with second stream and third stream."),
     320             :     .priv_size     = sizeof(MaskedClampContext),
     321             :     .uninit        = uninit,
     322             :     .activate      = activate,
     323             :     .query_formats = query_formats,
     324             :     .inputs        = maskedclamp_inputs,
     325             :     .outputs       = maskedclamp_outputs,
     326             :     .priv_class    = &maskedclamp_class,
     327             :     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
     328             : };

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