avfilter/vf_despill: fix assigment
[ffmpeg.git] / libavfilter / f_bench.c
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/opt.h"
20 #include "libavutil/time.h"
21 #include "avfilter.h"
22 #include "formats.h"
23 #include "internal.h"
24
25 enum BenchAction {
26     ACTION_START,
27     ACTION_STOP,
28     NB_ACTION
29 };
30
31 typedef struct BenchContext {
32     const AVClass *class;
33     int action;
34     int64_t max, min;
35     int64_t sum;
36     int n;
37 } BenchContext;
38
39 #define OFFSET(x) offsetof(BenchContext, x)
40 #define DEFINE_OPTIONS(filt_name, FLAGS)                                                                                \
41 static const AVOption filt_name##_options[] = {                                                                         \
42     { "action", "set action", OFFSET(action), AV_OPT_TYPE_INT, {.i64=ACTION_START}, 0, NB_ACTION-1, FLAGS, "action" },  \
43         { "start", "start timer",  0, AV_OPT_TYPE_CONST, {.i64=ACTION_START}, INT_MIN, INT_MAX, FLAGS, "action" },      \
44         { "stop",  "stop timer",   0, AV_OPT_TYPE_CONST, {.i64=ACTION_STOP},  INT_MIN, INT_MAX, FLAGS, "action" },      \
45     { NULL }                                                                                                            \
46 }
47
48 #define START_TIME_KEY "lavfi.bench.start_time"
49 #define T2F(v) ((v) / 1000000.)
50
51 static av_cold int init(AVFilterContext *ctx)
52 {
53     BenchContext *s = ctx->priv;
54     s->min = INT64_MAX;
55     s->max = INT64_MIN;
56     return 0;
57 }
58
59 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
60 {
61     AVFilterContext *ctx = inlink->dst;
62     BenchContext *s = ctx->priv;
63     AVFilterLink *outlink = ctx->outputs[0];
64     const int64_t t = av_gettime();
65
66     if (t < 0)
67         return ff_filter_frame(outlink, in);
68
69     if (s->action == ACTION_START) {
70         av_dict_set_int(&in->metadata, START_TIME_KEY, t, 0);
71     } else if (s->action == ACTION_STOP) {
72         AVDictionaryEntry *e = av_dict_get(in->metadata, START_TIME_KEY, NULL, 0);
73         if (e) {
74             const int64_t start = strtoll(e->value, NULL, 0);
75             const int64_t diff = t - start;
76             s->sum += diff;
77             s->n++;
78             s->min = FFMIN(s->min, diff);
79             s->max = FFMAX(s->max, diff);
80             av_log(s, AV_LOG_INFO, "t:%f avg:%f max:%f min:%f\n",
81                    T2F(diff), T2F(s->sum / s->n), T2F(s->max), T2F(s->min));
82         }
83         av_dict_set(&in->metadata, START_TIME_KEY, NULL, 0);
84     }
85
86     return ff_filter_frame(outlink, in);
87 }
88
89 #if CONFIG_BENCH_FILTER
90 DEFINE_OPTIONS(bench, AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM);
91 AVFILTER_DEFINE_CLASS(bench);
92
93 static const AVFilterPad bench_inputs[] = {
94     {
95         .name         = "default",
96         .type         = AVMEDIA_TYPE_VIDEO,
97         .filter_frame = filter_frame,
98     },
99     { NULL }
100 };
101
102 static const AVFilterPad bench_outputs[] = {
103     {
104         .name = "default",
105         .type = AVMEDIA_TYPE_VIDEO,
106     },
107     { NULL }
108 };
109
110 AVFilter ff_vf_bench = {
111     .name          = "bench",
112     .description   = NULL_IF_CONFIG_SMALL("Benchmark part of a filtergraph."),
113     .priv_size     = sizeof(BenchContext),
114     .init          = init,
115     .inputs        = bench_inputs,
116     .outputs       = bench_outputs,
117     .priv_class    = &bench_class,
118 };
119 #endif /* CONFIG_BENCH_FILTER */
120
121 #if CONFIG_ABENCH_FILTER
122 DEFINE_OPTIONS(abench, AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_AUDIO_PARAM);
123 AVFILTER_DEFINE_CLASS(abench);
124
125 static const AVFilterPad abench_inputs[] = {
126     {
127         .name         = "default",
128         .type         = AVMEDIA_TYPE_AUDIO,
129         .filter_frame = filter_frame,
130     },
131     { NULL }
132 };
133
134 static const AVFilterPad abench_outputs[] = {
135     {
136         .name = "default",
137         .type = AVMEDIA_TYPE_AUDIO,
138     },
139     { NULL }
140 };
141
142 AVFilter ff_af_abench = {
143     .name          = "abench",
144     .description   = NULL_IF_CONFIG_SMALL("Benchmark part of a filtergraph."),
145     .priv_size     = sizeof(BenchContext),
146     .init          = init,
147     .inputs        = abench_inputs,
148     .outputs       = abench_outputs,
149     .priv_class    = &abench_class,
150 };
151 #endif /* CONFIG_ABENCH_FILTER */