vf_showinfo: show timebase & framerate too
[libav.git] / libavfilter / vf_showinfo.c
1 /*
2 * Copyright (c) 2011 Stefano Sabatini
3 * This file is part of Libav.
4 *
5 * Libav is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * Libav is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with Libav; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 /**
21 * @file
22 * filter for showing textual video frame information
23 */
24
25 #include <inttypes.h>
26
27 #include "libavutil/adler32.h"
28 #include "libavutil/display.h"
29 #include "libavutil/imgutils.h"
30 #include "libavutil/internal.h"
31 #include "libavutil/pixdesc.h"
32 #include "libavutil/stereo3d.h"
33
34 #include "avfilter.h"
35 #include "internal.h"
36 #include "video.h"
37
38 typedef struct ShowInfoContext {
39 unsigned int frame;
40 } ShowInfoContext;
41
42 static void dump_stereo3d(AVFilterContext *ctx, AVFrameSideData *sd)
43 {
44 AVStereo3D *stereo;
45
46 av_log(ctx, AV_LOG_INFO, "stereoscopic information: ");
47 if (sd->size < sizeof(*stereo)) {
48 av_log(ctx, AV_LOG_INFO, "invalid data");
49 return;
50 }
51
52 stereo = (AVStereo3D *)sd->data;
53
54 av_log(ctx, AV_LOG_INFO, "type - ");
55 switch (stereo->type) {
56 case AV_STEREO3D_2D: av_log(ctx, AV_LOG_INFO, "2D"); break;
57 case AV_STEREO3D_SIDEBYSIDE: av_log(ctx, AV_LOG_INFO, "side by side"); break;
58 case AV_STEREO3D_TOPBOTTOM: av_log(ctx, AV_LOG_INFO, "top and bottom"); break;
59 case AV_STEREO3D_FRAMESEQUENCE: av_log(ctx, AV_LOG_INFO, "frame alternate"); break;
60 case AV_STEREO3D_CHECKERBOARD: av_log(ctx, AV_LOG_INFO, "checkerboard"); break;
61 case AV_STEREO3D_LINES: av_log(ctx, AV_LOG_INFO, "interleaved lines"); break;
62 case AV_STEREO3D_COLUMNS: av_log(ctx, AV_LOG_INFO, "interleaved columns"); break;
63 case AV_STEREO3D_SIDEBYSIDE_QUINCUNX: av_log(ctx, AV_LOG_INFO, "side by side "
64 "(quincunx subsampling)"); break;
65 default: av_log(ctx, AV_LOG_WARNING, "unknown"); break;
66 }
67
68 if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
69 av_log(ctx, AV_LOG_INFO, " (inverted)");
70 }
71
72 static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
73 {
74 AVFilterContext *ctx = inlink->dst;
75 ShowInfoContext *showinfo = ctx->priv;
76 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
77 uint32_t plane_checksum[4] = {0}, checksum = 0;
78 int i, plane, vsub = desc->log2_chroma_h;
79
80 for (plane = 0; frame->data[plane] && plane < 4; plane++) {
81 uint8_t *data = frame->data[plane];
82 int h = plane == 1 || plane == 2 ? inlink->h >> vsub : inlink->h;
83 int linesize = av_image_get_linesize(frame->format, frame->width, plane);
84 if (linesize < 0)
85 return linesize;
86
87 for (i = 0; i < h; i++) {
88 plane_checksum[plane] = av_adler32_update(plane_checksum[plane], data, linesize);
89 checksum = av_adler32_update(checksum, data, linesize);
90 data += frame->linesize[plane];
91 }
92 }
93
94 av_log(ctx, AV_LOG_INFO,
95 "n:%d pts:%"PRId64" pts_time:%f "
96 "fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c "
97 "checksum:%"PRIu32" plane_checksum:[%"PRIu32" %"PRIu32" %"PRIu32" %"PRIu32"]\n",
98 showinfo->frame,
99 frame->pts, frame->pts * av_q2d(inlink->time_base),
100 desc->name,
101 frame->sample_aspect_ratio.num, frame->sample_aspect_ratio.den,
102 frame->width, frame->height,
103 !frame->interlaced_frame ? 'P' : /* Progressive */
104 frame->top_field_first ? 'T' : 'B', /* Top / Bottom */
105 frame->key_frame,
106 av_get_picture_type_char(frame->pict_type),
107 checksum, plane_checksum[0], plane_checksum[1], plane_checksum[2], plane_checksum[3]);
108
109 for (i = 0; i < frame->nb_side_data; i++) {
110 AVFrameSideData *sd = frame->side_data[i];
111
112 av_log(ctx, AV_LOG_INFO, " side data - ");
113 switch (sd->type) {
114 case AV_FRAME_DATA_PANSCAN:
115 av_log(ctx, AV_LOG_INFO, "pan/scan");
116 break;
117 case AV_FRAME_DATA_A53_CC:
118 av_log(ctx, AV_LOG_INFO, "A/53 closed captions (%d bytes)", sd->size);
119 break;
120 case AV_FRAME_DATA_STEREO3D:
121 dump_stereo3d(ctx, sd);
122 break;
123 case AV_FRAME_DATA_DISPLAYMATRIX:
124 av_log(ctx, AV_LOG_INFO, "displaymatrix: rotation of %.2f degrees",
125 av_display_rotation_get((int32_t *)sd->data));
126 break;
127 case AV_FRAME_DATA_AFD:
128 av_log(ctx, AV_LOG_INFO, "afd: value of %"PRIu8, sd->data[0]);
129 break;
130 default:
131 av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)",
132 sd->type, sd->size);
133 break;
134 }
135
136 av_log(ctx, AV_LOG_INFO, "\n");
137 }
138
139 showinfo->frame++;
140 return ff_filter_frame(inlink->dst->outputs[0], frame);
141 }
142
143 static int config_props(AVFilterContext *ctx, AVFilterLink *link, int is_out)
144 {
145
146 av_log(ctx, AV_LOG_INFO, "config %s time_base: %d/%d, frame_rate: %d/%d\n",
147 is_out ? "out" : "in",
148 link->time_base.num, link->time_base.den,
149 link->frame_rate.num, link->frame_rate.den);
150
151 return 0;
152 }
153
154 static int config_props_in(AVFilterLink *link)
155 {
156 AVFilterContext *ctx = link->dst;
157 return config_props(ctx, link, 0);
158 }
159
160 static int config_props_out(AVFilterLink *link)
161 {
162 AVFilterContext *ctx = link->src;
163 return config_props(ctx, link, 1);
164 }
165
166 static const AVFilterPad avfilter_vf_showinfo_inputs[] = {
167 {
168 .name = "default",
169 .type = AVMEDIA_TYPE_VIDEO,
170 .get_video_buffer = ff_null_get_video_buffer,
171 .filter_frame = filter_frame,
172 .config_props = config_props_in,
173 },
174 { NULL }
175 };
176
177 static const AVFilterPad avfilter_vf_showinfo_outputs[] = {
178 {
179 .name = "default",
180 .type = AVMEDIA_TYPE_VIDEO,
181 .config_props = config_props_out,
182 },
183 { NULL }
184 };
185
186 AVFilter ff_vf_showinfo = {
187 .name = "showinfo",
188 .description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."),
189
190 .priv_size = sizeof(ShowInfoContext),
191
192 .inputs = avfilter_vf_showinfo_inputs,
193
194 .outputs = avfilter_vf_showinfo_outputs,
195 };