LCOV - code coverage report
Current view: top level - src/libavfilter - f_bench.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 27 0.0 %
Date: 2017-01-28 02:43:52 Functions: 0 2 0.0 %

          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             : #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 {
      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           0 : static av_cold int init(AVFilterContext *ctx)
      52             : {
      53           0 :     BenchContext *s = ctx->priv;
      54           0 :     s->min = INT64_MAX;
      55           0 :     s->max = INT64_MIN;
      56           0 :     return 0;
      57             : }
      58             : 
      59           0 : static int filter_frame(AVFilterLink *inlink, AVFrame *in)
      60             : {
      61           0 :     AVFilterContext *ctx = inlink->dst;
      62           0 :     BenchContext *s = ctx->priv;
      63           0 :     AVFilterLink *outlink = ctx->outputs[0];
      64           0 :     const int64_t t = av_gettime();
      65             : 
      66           0 :     if (t < 0)
      67           0 :         return ff_filter_frame(outlink, in);
      68             : 
      69           0 :     if (s->action == ACTION_START) {
      70           0 :         av_dict_set_int(&in->metadata, START_TIME_KEY, t, 0);
      71           0 :     } else if (s->action == ACTION_STOP) {
      72           0 :         AVDictionaryEntry *e = av_dict_get(in->metadata, START_TIME_KEY, NULL, 0);
      73           0 :         if (e) {
      74           0 :             const int64_t start = strtoll(e->value, NULL, 0);
      75           0 :             const int64_t diff = t - start;
      76           0 :             s->sum += diff;
      77           0 :             s->n++;
      78           0 :             s->min = FFMIN(s->min, diff);
      79           0 :             s->max = FFMAX(s->max, diff);
      80           0 :             av_log(s, AV_LOG_INFO, "t:%f avg:%f max:%f min:%f\n",
      81           0 :                    T2F(diff), T2F(s->sum / s->n), T2F(s->max), T2F(s->min));
      82             :         }
      83           0 :         av_dict_set(&in->metadata, START_TIME_KEY, NULL, 0);
      84             :     }
      85             : 
      86           0 :     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 */

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