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lavfi: add bench and abench filters

This commit is contained in:
Clément Bœsch 2016-02-29 12:19:55 +01:00
parent 1c7e2cf9d3
commit 090621d7ce
6 changed files with 192 additions and 1 deletions
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1
Changelog
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@ -8,6 +8,7 @@ version <next>:
- Bob Weaver deinterlacing filter
- firequalizer filter
- datascope filter
- bench and abench filters
version 3.0:

35
doc/filters.texi
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@ -10874,6 +10874,7 @@ Scale a subtitle stream to match the main video in size before overlaying
@end example
@end itemize
@anchor{selectivecolor}
@section selectivecolor
Adjust cyan, magenta, yellow and black (CMYK) to certain ranges of colors (such
@ -14289,6 +14290,40 @@ ffplay -f lavfi 'amovie=input.mp3, asplit [a][out1];
@end example
@end itemize
@section bench, abench
Benchmark part of a filtergraph.
The filter accepts the following options:
@table @option
@item action
Start or stop a timer.
Available values are:
@table @samp
@item start
Get the current time, set it as frame metadata (using the key
@code{lavfi.bench.start_time}), and forward the frame to the next filter.
@item stop
Get the current time and fetch the @code{lavfi.bench.start_time} metadata from
the input frame metadata to get the time difference. Time difference, average,
maximum and minimum time (respectively @code{t}, @code{avg}, @code{max} and
@code{min}) are then printed. The timestamps are expressed in seconds.
@end table
@end table
@subsection Examples
@itemize
@item
Benchmark @ref{selectivecolor} filter:
@example
bench=start,selectivecolor=reds=-.2 .12 -.49,bench=stop
@end example
@end itemize
@section concat
Concatenate audio and video streams, joining them together one after the

2
libavfilter/Makefile
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@ -24,6 +24,7 @@ OBJS = allfilters.o \
transform.o \
video.o \
OBJS-$(CONFIG_ABENCH_FILTER) += f_bench.o
OBJS-$(CONFIG_ACOMPRESSOR_FILTER) += af_sidechaincompress.o
OBJS-$(CONFIG_ACROSSFADE_FILTER) += af_afade.o
OBJS-$(CONFIG_ADELAY_FILTER) += af_adelay.o
@ -116,6 +117,7 @@ OBJS-$(CONFIG_ALPHAEXTRACT_FILTER) += vf_extractplanes.o
OBJS-$(CONFIG_ALPHAMERGE_FILTER) += vf_alphamerge.o
OBJS-$(CONFIG_ATADENOISE_FILTER) += vf_atadenoise.o
OBJS-$(CONFIG_BBOX_FILTER) += bbox.o vf_bbox.o
OBJS-$(CONFIG_BENCH_FILTER) += f_bench.o
OBJS-$(CONFIG_BLACKDETECT_FILTER) += vf_blackdetect.o
OBJS-$(CONFIG_BLACKFRAME_FILTER) += vf_blackframe.o
OBJS-$(CONFIG_BLEND_FILTER) += vf_blend.o dualinput.o framesync.o

2
libavfilter/allfilters.c
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@ -45,6 +45,7 @@ void avfilter_register_all(void)
return;
initialized = 1;
REGISTER_FILTER(ABENCH, abench, af);
REGISTER_FILTER(ACOMPRESSOR, acompressor, af);
REGISTER_FILTER(ACROSSFADE, acrossfade, af);
REGISTER_FILTER(ADELAY, adelay, af);
@ -136,6 +137,7 @@ void avfilter_register_all(void)
REGISTER_FILTER(ALPHAMERGE, alphamerge, vf);
REGISTER_FILTER(ATADENOISE, atadenoise, vf);
REGISTER_FILTER(ASS, ass, vf);
REGISTER_FILTER(BENCH, bench, vf);
REGISTER_FILTER(BBOX, bbox, vf);
REGISTER_FILTER(BLACKDETECT, blackdetect, vf);
REGISTER_FILTER(BLACKFRAME, blackframe, vf);

151
libavfilter/f_bench.c Normal file
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@ -0,0 +1,151 @@
/*
* 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
*/
#include "libavutil/opt.h"
#include "libavutil/time.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
enum BenchAction {
ACTION_START,
ACTION_STOP,
NB_ACTION
};
typedef struct {
const AVClass *class;
int action;
int64_t max, min;
int64_t sum;
int n;
} BenchContext;
#define OFFSET(x) offsetof(BenchContext, x)
#define DEFINE_OPTIONS(filt_name, FLAGS) \
static const AVOption filt_name##_options[] = { \
{ "action", "set action", OFFSET(action), AV_OPT_TYPE_INT, {.i64=ACTION_START}, 0, NB_ACTION-1, FLAGS, "action" }, \
{ "start", "start timer", 0, AV_OPT_TYPE_CONST, {.i64=ACTION_START}, INT_MIN, INT_MAX, FLAGS, "action" }, \
{ "stop", "stop timer", 0, AV_OPT_TYPE_CONST, {.i64=ACTION_STOP}, INT_MIN, INT_MAX, FLAGS, "action" }, \
{ NULL } \
}
#define START_TIME_KEY "lavfi.bench.start_time"
#define T2F(v) ((v) / 1000000.)
static av_cold int init(AVFilterContext *ctx)
{
BenchContext *s = ctx->priv;
s->min = INT64_MAX;
s->max = INT64_MIN;
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
BenchContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
const int64_t t = av_gettime();
if (t < 0)
return ff_filter_frame(outlink, in);
if (s->action == ACTION_START) {
av_dict_set_int(&in->metadata, START_TIME_KEY, t, 0);
} else if (s->action = ACTION_STOP) {
AVDictionaryEntry *e = av_dict_get(in->metadata, START_TIME_KEY, NULL, 0);
if (e) {
const int64_t start = strtoll(e->value, NULL, 0);
const int64_t diff = t - start;
s->sum += diff;
s->n++;
s->min = FFMIN(s->min, diff);
s->max = FFMAX(s->max, diff);
av_log(s, AV_LOG_INFO, "t:%f avg:%f max:%f min:%f\n",
T2F(diff), T2F(s->sum / s->n), T2F(s->max), T2F(s->min));
}
av_dict_set(&in->metadata, START_TIME_KEY, NULL, 0);
}
return ff_filter_frame(outlink, in);
}
#if CONFIG_BENCH_FILTER
DEFINE_OPTIONS(bench, AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM);
AVFILTER_DEFINE_CLASS(bench);
static const AVFilterPad bench_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
},
{ NULL }
};
static const AVFilterPad bench_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
},
{ NULL }
};
AVFilter ff_vf_bench = {
.name = "bench",
.description = NULL_IF_CONFIG_SMALL("Benchmark part of a filtergraph."),
.priv_size = sizeof(BenchContext),
.init = init,
.inputs = bench_inputs,
.outputs = bench_outputs,
.priv_class = &bench_class,
};
#endif /* CONFIG_BENCH_FILTER */
#if CONFIG_ABENCH_FILTER
DEFINE_OPTIONS(abench, AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_AUDIO_PARAM);
AVFILTER_DEFINE_CLASS(abench);
static const AVFilterPad abench_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.filter_frame = filter_frame,
},
{ NULL }
};
static const AVFilterPad abench_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
},
{ NULL }
};
AVFilter ff_af_abench = {
.name = "abench",
.description = NULL_IF_CONFIG_SMALL("Benchmark part of a filtergraph."),
.priv_size = sizeof(BenchContext),
.init = init,
.inputs = abench_inputs,
.outputs = abench_outputs,
.priv_class = &abench_class,
};
#endif /* CONFIG_ABENCH_FILTER */

2
libavfilter/version.h
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@ -30,7 +30,7 @@
#include "libavutil/version.h"
#define LIBAVFILTER_VERSION_MAJOR 6
#define LIBAVFILTER_VERSION_MINOR 37
#define LIBAVFILTER_VERSION_MINOR 38
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \