1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* copy video filter
*/
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"
static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *formats = NULL;
int ret;
ret = ff_formats_pixdesc_filter(&formats, 0,
AV_PIX_FMT_FLAG_HWACCEL);
if (ret < 0)
return ret;
return ff_set_common_formats(ctx, formats);
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterLink *outlink = inlink->dst->outputs[0];
AVFrame *out = ff_get_video_buffer(outlink, in->width, in->height);
int ret;
if (!out) {
ret = AVERROR(ENOMEM);
goto fail;
}
ret = av_frame_copy_props(out, in);
if (ret < 0)
goto fail;
ret = av_frame_copy(out, in);
if (ret < 0)
goto fail;
av_frame_free(&in);
return ff_filter_frame(outlink, out);
fail:
av_frame_free(&in);
av_frame_free(&out);
return ret;
}
static const AVFilterPad avfilter_vf_copy_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
},
{ NULL }
};
static const AVFilterPad avfilter_vf_copy_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
},
{ NULL }
};
const AVFilter ff_vf_copy = {
.name = "copy",
.description = NULL_IF_CONFIG_SMALL("Copy the input video unchanged to the output."),
.inputs = avfilter_vf_copy_inputs,
.outputs = avfilter_vf_copy_outputs,
.query_formats = query_formats,
};
|
