LCOV - code coverage report
Current view: top level - libavfilter - vf_limiter.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 69 0.0 %
Date: 2017-12-17 04:34:43 Functions: 0 6 0.0 %

          Line data    Source code
       1             : /*
       2             :  * This file is part of FFmpeg.
       3             :  *
       4             :  * FFmpeg is free software; you can redistribute it and/or
       5             :  * modify it under the terms of the GNU Lesser General Public
       6             :  * License as published by the Free Software Foundation; either
       7             :  * version 2.1 of the License, or (at your option) any later version.
       8             :  *
       9             :  * FFmpeg is distributed in the hope that it will be useful,
      10             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12             :  * Lesser General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU Lesser General Public
      15             :  * License along with FFmpeg; if not, write to the Free Software
      16             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      17             :  */
      18             : 
      19             : #include "libavutil/attributes.h"
      20             : #include "libavutil/common.h"
      21             : #include "libavutil/eval.h"
      22             : #include "libavutil/imgutils.h"
      23             : #include "libavutil/opt.h"
      24             : #include "libavutil/pixdesc.h"
      25             : #include "avfilter.h"
      26             : #include "formats.h"
      27             : #include "internal.h"
      28             : #include "limiter.h"
      29             : #include "video.h"
      30             : 
      31             : typedef struct LimiterContext {
      32             :     const AVClass *class;
      33             :     int min;
      34             :     int max;
      35             :     int planes;
      36             :     int nb_planes;
      37             :     int linesize[4];
      38             :     int width[4];
      39             :     int height[4];
      40             : 
      41             :     LimiterDSPContext dsp;
      42             : } LimiterContext;
      43             : 
      44             : #define OFFSET(x) offsetof(LimiterContext, x)
      45             : #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
      46             : 
      47             : static const AVOption limiter_options[] = {
      48             :     { "min",    "set min value", OFFSET(min),    AV_OPT_TYPE_INT, {.i64=0},     0, 65535, .flags = FLAGS },
      49             :     { "max",    "set max value", OFFSET(max),    AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, .flags = FLAGS },
      50             :     { "planes", "set planes",    OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15},    0,    15, .flags = FLAGS },
      51             :     { NULL }
      52             : };
      53             : 
      54             : AVFILTER_DEFINE_CLASS(limiter);
      55             : 
      56           0 : static av_cold int init(AVFilterContext *ctx)
      57             : {
      58           0 :     LimiterContext *s = ctx->priv;
      59             : 
      60           0 :     if (s->min > s->max)
      61           0 :         return AVERROR(EINVAL);
      62           0 :     return 0;
      63             : }
      64             : 
      65           0 : static int query_formats(AVFilterContext *ctx)
      66             : {
      67             :     static const enum AVPixelFormat pix_fmts[] = {
      68             :         AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
      69             :         AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
      70             :         AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
      71             :         AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
      72             :         AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
      73             :         AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
      74             :         AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
      75             :         AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
      76             :         AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
      77             :         AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
      78             :         AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
      79             :         AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
      80             :         AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
      81             :         AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
      82             :         AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
      83             :         AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
      84             :         AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY16,
      85             :         AV_PIX_FMT_NONE
      86             :     };
      87             : 
      88           0 :     AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
      89           0 :     if (!fmts_list)
      90           0 :         return AVERROR(ENOMEM);
      91           0 :     return ff_set_common_formats(ctx, fmts_list);
      92             : }
      93             : 
      94           0 : static void limiter8(const uint8_t *src, uint8_t *dst,
      95             :                      ptrdiff_t slinesize, ptrdiff_t dlinesize,
      96             :                      int w, int h, int min, int max)
      97             : {
      98             :     int x, y;
      99             : 
     100           0 :     for (y = 0; y < h; y++) {
     101           0 :         for (x = 0; x < w; x++) {
     102           0 :             dst[x] = av_clip(src[x], min, max);
     103             :         }
     104             : 
     105           0 :         dst += dlinesize;
     106           0 :         src += slinesize;
     107             :     }
     108           0 : }
     109             : 
     110           0 : static void limiter16(const uint8_t *ssrc, uint8_t *ddst,
     111             :                       ptrdiff_t slinesize, ptrdiff_t dlinesize,
     112             :                       int w, int h, int min, int max)
     113             : {
     114           0 :     const uint16_t *src = (const uint16_t *)ssrc;
     115           0 :     uint16_t *dst = (uint16_t *)ddst;
     116             :     int x, y;
     117             : 
     118           0 :     dlinesize /= 2;
     119           0 :     slinesize /= 2;
     120             : 
     121           0 :     for (y = 0; y < h; y++) {
     122           0 :         for (x = 0; x < w; x++) {
     123           0 :             dst[x] = av_clip(src[x], min, max);
     124             :         }
     125             : 
     126           0 :         dst += dlinesize;
     127           0 :         src += slinesize;
     128             :     }
     129           0 : }
     130             : 
     131           0 : static int config_props(AVFilterLink *inlink)
     132             : {
     133           0 :     AVFilterContext *ctx = inlink->dst;
     134           0 :     LimiterContext *s = ctx->priv;
     135           0 :     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
     136             :     int vsub, hsub, ret;
     137             : 
     138           0 :     s->nb_planes = av_pix_fmt_count_planes(inlink->format);
     139             : 
     140           0 :     if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
     141           0 :         return ret;
     142             : 
     143           0 :     hsub = desc->log2_chroma_w;
     144           0 :     vsub = desc->log2_chroma_h;
     145           0 :     s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
     146           0 :     s->height[0] = s->height[3] = inlink->h;
     147           0 :     s->width[1]  = s->width[2]  = AV_CEIL_RSHIFT(inlink->w, hsub);
     148           0 :     s->width[0]  = s->width[3]  = inlink->w;
     149             : 
     150           0 :     if (desc->comp[0].depth == 8) {
     151           0 :         s->dsp.limiter = limiter8;
     152           0 :         s->max = FFMIN(s->max, 255);
     153           0 :         s->min = FFMIN(s->min, 255);
     154             :     } else {
     155           0 :         s->dsp.limiter = limiter16;
     156             :     }
     157             : 
     158             :     if (ARCH_X86)
     159           0 :         ff_limiter_init_x86(&s->dsp, desc->comp[0].depth);
     160             : 
     161           0 :     return 0;
     162             : }
     163             : 
     164           0 : static int filter_frame(AVFilterLink *inlink, AVFrame *in)
     165             : {
     166           0 :     AVFilterContext *ctx = inlink->dst;
     167           0 :     LimiterContext *s = ctx->priv;
     168           0 :     AVFilterLink *outlink = ctx->outputs[0];
     169             :     AVFrame *out;
     170             :     int p;
     171             : 
     172           0 :     if (av_frame_is_writable(in)) {
     173           0 :         out = in;
     174             :     } else {
     175           0 :         out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
     176           0 :         if (!out) {
     177           0 :             av_frame_free(&in);
     178           0 :             return AVERROR(ENOMEM);
     179             :         }
     180           0 :         av_frame_copy_props(out, in);
     181             :     }
     182             : 
     183           0 :     for (p = 0; p < s->nb_planes; p++) {
     184           0 :         if (!((1 << p) & s->planes)) {
     185           0 :             if (out != in)
     186           0 :                 av_image_copy_plane(out->data[p], out->linesize[p], in->data[p], in->linesize[p],
     187             :                                     s->linesize[p], s->height[p]);
     188           0 :             continue;
     189             :         }
     190             : 
     191           0 :         s->dsp.limiter(in->data[p], out->data[p],
     192           0 :                        in->linesize[p], out->linesize[p],
     193             :                        s->width[p], s->height[p],
     194             :                        s->min, s->max);
     195             :     }
     196             : 
     197           0 :     if (out != in)
     198           0 :         av_frame_free(&in);
     199             : 
     200           0 :     return ff_filter_frame(outlink, out);
     201             : }
     202             : 
     203             : static const AVFilterPad inputs[] = {
     204             :     {
     205             :         .name         = "default",
     206             :         .type         = AVMEDIA_TYPE_VIDEO,
     207             :         .filter_frame = filter_frame,
     208             :         .config_props = config_props,
     209             :     },
     210             :     { NULL }
     211             : };
     212             : 
     213             : static const AVFilterPad outputs[] = {
     214             :     {
     215             :         .name = "default",
     216             :         .type = AVMEDIA_TYPE_VIDEO,
     217             :     },
     218             :     { NULL }
     219             : };
     220             : 
     221             : AVFilter ff_vf_limiter = {
     222             :     .name          = "limiter",
     223             :     .description   = NULL_IF_CONFIG_SMALL("Limit pixels components to the specified range."),
     224             :     .priv_size     = sizeof(LimiterContext),
     225             :     .priv_class    = &limiter_class,
     226             :     .init          = init,
     227             :     .query_formats = query_formats,
     228             :     .inputs        = inputs,
     229             :     .outputs       = outputs,
     230             :     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
     231             : };

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