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/* GStreamer video format conversion benchmark
* Copyright (C) 2014 Wim Taymans <wim.taymans@gmail.com>
* Copyright (C) 2019 Tim-Philipp Müller <tim centricular com>
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#define DEFAULT_WIDTH 1920
#define DEFAULT_HEIGHT 1080
#define DEFAULT_DURATION 2.0
static gint
get_num_formats (void)
{
gint num_formats = 100;
while (gst_video_format_to_string (num_formats) == NULL)
--num_formats;
GST_INFO ("number of known video formats: %d", num_formats);
return num_formats + 1;
}
static void
do_benchmark_conversions (guint width, guint height, const gchar * in_format,
const gchar * out_format, gdouble max_duration)
{
const gchar *infmt_str, *outfmt_str;
GstVideoFormat infmt, outfmt;
GTimer *timer;
gint num_formats;
timer = g_timer_new ();
num_formats = get_num_formats ();
for (infmt = GST_VIDEO_FORMAT_I420; infmt < num_formats; infmt++) {
GstVideoInfo ininfo;
GstVideoFrame inframe;
GstBuffer *inbuffer;
infmt_str = gst_video_format_to_string (infmt);
if (in_format != NULL && !g_str_equal (in_format, infmt_str))
continue;
gst_video_info_set_format (&ininfo, infmt, width, height);
inbuffer = gst_buffer_new_and_alloc (ininfo.size);
gst_buffer_memset (inbuffer, 0, 0, -1);
gst_video_frame_map (&inframe, &ininfo, inbuffer, GST_MAP_READ);
for (outfmt = GST_VIDEO_FORMAT_I420; outfmt < num_formats; outfmt++) {
GstVideoInfo outinfo;
GstVideoFrame outframe;
GstBuffer *outbuffer;
GstVideoConverter *convert;
gdouble elapsed, convert_sec;
gint count;
outfmt_str = gst_video_format_to_string (outfmt);
if (out_format != NULL && !g_str_equal (out_format, outfmt_str))
continue;
/* Or maybe we should allocate more buffers to minimise cache effects? */
gst_video_info_set_format (&outinfo, outfmt, width, height);
outbuffer = gst_buffer_new_and_alloc (outinfo.size);
gst_video_frame_map (&outframe, &outinfo, outbuffer, GST_MAP_WRITE);
convert = gst_video_converter_new (&ininfo, &outinfo, NULL);
/* warmup */
gst_video_converter_frame (convert, &inframe, &outframe);
count = 0;
g_timer_start (timer);
while (TRUE) {
gst_video_converter_frame (convert, &inframe, &outframe);
count++;
elapsed = g_timer_elapsed (timer, NULL);
if (elapsed >= max_duration)
break;
}
convert_sec = count / elapsed;
gst_println ("%8.1f conversions/sec %s -> %s @ %ux%u, %d/%.5f",
convert_sec, infmt_str, outfmt_str, width, height, count, elapsed);
gst_video_converter_free (convert);
gst_video_frame_unmap (&outframe);
gst_buffer_unref (outbuffer);
}
gst_video_frame_unmap (&inframe);
gst_buffer_unref (inbuffer);
}
g_timer_destroy (timer);
}
int
main (int argc, char **argv)
{
GError *err = NULL;
gint width = DEFAULT_WIDTH;
gint height = DEFAULT_HEIGHT;
gdouble max_dur = DEFAULT_DURATION;
gchar *from_fmt = NULL;
gchar *to_fmt = NULL;
GOptionContext *ctx;
GOptionEntry options[] = {
{"width", 'w', 0, G_OPTION_ARG_INT, &width, "Width", NULL},
{"height", 'h', 0, G_OPTION_ARG_INT, &height, "Height", NULL},
{"from-format", 'f', 0, G_OPTION_ARG_STRING, &from_fmt, "From Format",
NULL},
{"to-format", 't', 0, G_OPTION_ARG_STRING, &to_fmt, "To Format", NULL},
{"duration", 'd', 0, G_OPTION_ARG_DOUBLE, &max_dur,
"Benchmark duration for each run (in seconds)", NULL},
{NULL}
};
ctx = g_option_context_new ("");
g_option_context_add_main_entries (ctx, options, NULL);
g_option_context_add_group (ctx, gst_init_get_option_group ());
if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
g_print ("Error initializing: %s\n", GST_STR_NULL (err->message));
g_option_context_free (ctx);
g_clear_error (&err);
return 1;
}
g_option_context_free (ctx);
do_benchmark_conversions (width, height, from_fmt, to_fmt, max_dur);
return 0;
}
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