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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/*
* Copyright (c) 2011 Stefano Sabatini
* 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
* filter for showing textual video frame information
*/
#include <inttypes.h>
#include "libavutil/adler32.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/pixdesc.h"
#include "libavutil/stereo3d.h"
#include "libavutil/timestamp.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"
static void dump_stereo3d(AVFilterContext *ctx, AVFrameSideData *sd)
{
AVStereo3D *stereo;
av_log(ctx, AV_LOG_INFO, "stereoscopic information: ");
if (sd->size < sizeof(*stereo)) {
av_log(ctx, AV_LOG_INFO, "invalid data");
return;
}
stereo = (AVStereo3D *)sd->data;
av_log(ctx, AV_LOG_INFO, "type - ");
switch (stereo->type) {
case AV_STEREO3D_2D: av_log(ctx, AV_LOG_INFO, "2D"); break;
case AV_STEREO3D_SIDEBYSIDE: av_log(ctx, AV_LOG_INFO, "side by side"); break;
case AV_STEREO3D_TOPBOTTOM: av_log(ctx, AV_LOG_INFO, "top and bottom"); break;
case AV_STEREO3D_FRAMESEQUENCE: av_log(ctx, AV_LOG_INFO, "frame alternate"); break;
case AV_STEREO3D_CHECKERBOARD: av_log(ctx, AV_LOG_INFO, "checkerboard"); break;
case AV_STEREO3D_LINES: av_log(ctx, AV_LOG_INFO, "interleaved lines"); break;
case AV_STEREO3D_COLUMNS: av_log(ctx, AV_LOG_INFO, "interleaved columns"); break;
case AV_STEREO3D_SIDEBYSIDE_QUINCUNX: av_log(ctx, AV_LOG_INFO, "side by side "
"(quincunx subsampling)"); break;
default: av_log(ctx, AV_LOG_WARNING, "unknown"); break;
}
if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
av_log(ctx, AV_LOG_INFO, " (inverted)");
}
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
AVFilterContext *ctx = inlink->dst;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
uint32_t plane_checksum[4] = {0}, checksum = 0;
int i, plane, vsub = desc->log2_chroma_h;
for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) {
int64_t linesize = av_image_get_linesize(frame->format, frame->width, plane);
uint8_t *data = frame->data[plane];
int h = plane == 1 || plane == 2 ? FF_CEIL_RSHIFT(inlink->h, vsub) : inlink->h;
if (linesize < 0)
return linesize;
for (i = 0; i < h; i++) {
plane_checksum[plane] = av_adler32_update(plane_checksum[plane], data, linesize);
checksum = av_adler32_update(checksum, data, linesize);
data += frame->linesize[plane];
}
}
av_log(ctx, AV_LOG_INFO,
"n:%"PRId64" pts:%s pts_time:%s pos:%"PRId64" "
"fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c "
"checksum:%08"PRIX32" plane_checksum:[%08"PRIX32,
inlink->frame_count,
av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base), av_frame_get_pkt_pos(frame),
desc->name,
frame->sample_aspect_ratio.num, frame->sample_aspect_ratio.den,
frame->width, frame->height,
!frame->interlaced_frame ? 'P' : /* Progressive */
frame->top_field_first ? 'T' : 'B', /* Top / Bottom */
frame->key_frame,
av_get_picture_type_char(frame->pict_type),
checksum, plane_checksum[0]);
for (plane = 1; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)
av_log(ctx, AV_LOG_INFO, " %08"PRIX32, plane_checksum[plane]);
av_log(ctx, AV_LOG_INFO, "]\n");
for (i = 0; i < frame->nb_side_data; i++) {
AVFrameSideData *sd = frame->side_data[i];
av_log(ctx, AV_LOG_INFO, " side data - ");
switch (sd->type) {
case AV_FRAME_DATA_PANSCAN:
av_log(ctx, AV_LOG_INFO, "pan/scan");
break;
case AV_FRAME_DATA_A53_CC:
av_log(ctx, AV_LOG_INFO, "A/53 closed captions (%d bytes)", sd->size);
break;
case AV_FRAME_DATA_STEREO3D:
dump_stereo3d(ctx, sd);
break;
default:
av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)",
sd->type, sd->size);
break;
}
av_log(ctx, AV_LOG_INFO, "\n");
}
return ff_filter_frame(inlink->dst->outputs[0], frame);
}
static const AVFilterPad avfilter_vf_showinfo_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
},
{ NULL }
};
static const AVFilterPad avfilter_vf_showinfo_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO
},
{ NULL }
};
AVFilter ff_vf_showinfo = {
.name = "showinfo",
.description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."),
.inputs = avfilter_vf_showinfo_inputs,
.outputs = avfilter_vf_showinfo_outputs,
};
|
