LCOV - code coverage report
Current view: top level - libavfilter - vf_copy.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 16 19 84.2 %
Date: 2017-12-14 19:11:59 Functions: 2 2 100.0 %

          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             : /**
      20             :  * @file
      21             :  * copy video filter
      22             :  */
      23             : 
      24             : #include "libavutil/imgutils.h"
      25             : #include "libavutil/internal.h"
      26             : #include "avfilter.h"
      27             : #include "internal.h"
      28             : #include "video.h"
      29             : 
      30         142 : static int query_formats(AVFilterContext *ctx)
      31             : {
      32         142 :     AVFilterFormats *formats = NULL;
      33             :     int fmt;
      34             : 
      35       26128 :     for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) {
      36       25986 :         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
      37             :         int ret;
      38       25986 :         if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
      39        2130 :             continue;
      40       23856 :         if ((ret = ff_add_format(&formats, fmt)) < 0)
      41           0 :             return ret;
      42             :     }
      43             : 
      44         142 :     return ff_set_common_formats(ctx, formats);
      45             : }
      46             : 
      47         141 : static int filter_frame(AVFilterLink *inlink, AVFrame *in)
      48             : {
      49         141 :     AVFilterLink *outlink = inlink->dst->outputs[0];
      50         141 :     AVFrame *out = ff_get_video_buffer(outlink, in->width, in->height);
      51             : 
      52         141 :     if (!out) {
      53           0 :         av_frame_free(&in);
      54           0 :         return AVERROR(ENOMEM);
      55             :     }
      56         141 :     av_frame_copy_props(out, in);
      57         141 :     av_frame_copy(out, in);
      58         141 :     av_frame_free(&in);
      59         141 :     return ff_filter_frame(outlink, out);
      60             : }
      61             : 
      62             : static const AVFilterPad avfilter_vf_copy_inputs[] = {
      63             :     {
      64             :         .name         = "default",
      65             :         .type         = AVMEDIA_TYPE_VIDEO,
      66             :         .filter_frame = filter_frame,
      67             :     },
      68             :     { NULL }
      69             : };
      70             : 
      71             : static const AVFilterPad avfilter_vf_copy_outputs[] = {
      72             :     {
      73             :         .name = "default",
      74             :         .type = AVMEDIA_TYPE_VIDEO,
      75             :     },
      76             :     { NULL }
      77             : };
      78             : 
      79             : AVFilter ff_vf_copy = {
      80             :     .name        = "copy",
      81             :     .description = NULL_IF_CONFIG_SMALL("Copy the input video unchanged to the output."),
      82             :     .inputs      = avfilter_vf_copy_inputs,
      83             :     .outputs     = avfilter_vf_copy_outputs,
      84             :     .query_formats = query_formats,
      85             : };

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