Move some tests and rename one set.

[libdcp.git] / test / bench.cc

diff --git a/test/bench.cc b/test/bench.cc
index c3f7dd1e42dda377fd5e2c3258b2947ea15229d1..cfda461254bfe01a4f0edf25dadd6108d59331a6 100644 (file)
--- a/test/bench.cc
+++ b/test/bench.cc
@@ -1,33 +1,81 @@
 /*
-    Copyright (C) 2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2015-2019 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of libdcp.
+
+    libdcp is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
+    libdcp 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 General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
+    along with libdcp.  If not, see <http://www.gnu.org/licenses/>.
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of portions of this program with the
+    OpenSSL library under certain conditions as described in each
+    individual source file, and distribute linked combinations
+    including the two.
+
+    You must obey the GNU General Public License in all respects
+    for all of the code used other than OpenSSL.  If you modify
+    file(s) with this exception, you may extend this exception to your
+    version of the file(s), but you are not obligated to do so.  If you
+    do not wish to do so, delete this exception statement from your
+    version.  If you delete this exception statement from all source
+    files in the program, then also delete it here.
 */
 
 #include "data.h"
 #include "test.h"
 #include "util.h"
 #include "version.h"
+#include "j2k.h"
+#include "openjpeg_image.h"
 #include <sys/time.h>
 #include <iostream>
+#include <cstdio>
 
 using std::cout;
 using std::cerr;
 using boost::shared_ptr;
 
+class Timer
+{
+public:
+       Timer ()
+               : _total (0)
+       {
+
+       }
+
+       void start ()
+       {
+               gettimeofday (&_start, 0);
+       }
+
+       void stop ()
+       {
+               struct timeval stop;
+               gettimeofday (&stop, 0);
+               _total += (stop.tv_sec + stop.tv_usec / 1e6) - (_start.tv_sec + _start.tv_usec / 1e6);
+       }
+
+       double get ()
+       {
+               return _total;
+       }
+
+private:
+       double _total;
+       struct timeval _start;
+};
+
 /** Run some basic benchmarks of JPEG2000 encoding / decoding */
 int
 main (int argc, char* argv[])
@@ -37,48 +85,31 @@ main (int argc, char* argv[])
                exit (EXIT_FAILURE);
        }
 
-       int const decompress_count = 100;
-       int const compress_count = 100;
+       int const count = 100;
        int const j2k_bandwidth = 100000000;
 
-       struct timeval start;
        dcp::Data j2k (boost::filesystem::path (argv[1]) / "thx.j2c");
 
-       gettimeofday (&start, 0);
-
-       shared_ptr<dcp::OpenJPEGImage> xyz;
-       for (int i = 0; i < decompress_count; ++i) {
-               xyz = dcp::decompress_j2k (j2k.data.get(), j2k.size, 0);
-       }
-
-       struct timeval stop;
-       gettimeofday (&stop, 0);
-
-       double start_seconds = start.tv_sec + double(start.tv_usec) / 1000000;
-       double stop_seconds = stop.tv_sec + double(start.tv_usec) / 1000000;
-       if (dcp::built_with_debug) {
-               cout << "Decompress (debug build): ";
-       } else {
-               cout << "Decompress: ";
+       Timer decompress;
+       Timer compress;
+
+       dcp::Data recomp;
+       for (int i = 0; i < count; ++i) {
+               decompress.start ();
+               shared_ptr<dcp::OpenJPEGImage> xyz = dcp::decompress_j2k (j2k, 0);
+               decompress.stop ();
+               compress.start ();
+               recomp = dcp::compress_j2k (xyz, j2k_bandwidth, 24, false, false);
+               compress.stop ();
+               cout << (i + 1) << " ";
+               cout.flush ();
        }
-       cout << decompress_count / (stop_seconds - start_seconds) << " fps.\n";
+       cout << "\n";
 
-       gettimeofday (&start, 0);
-
-       for (int i = 0; i < compress_count; ++i) {
-               dcp::compress_j2k (xyz, j2k_bandwidth, 24, false, false);
-       }
-
-       gettimeofday (&stop, 0);
-
-       start_seconds = start.tv_sec + double(start.tv_usec) / 1000000;
-       stop_seconds = stop.tv_sec + double(start.tv_usec) / 1000000;
-       if (dcp::built_with_debug) {
-               cout << "Compress (debug build) ";
-       } else {
-               cout << "Compress ";
-       }
+       cout << "Decompress: " << count / decompress.get() << " fps.\n";
+       cout << "Compress:   " << count / compress.get() << " fps.\n";
 
-       cout << (j2k_bandwidth / 1000000) << "Mbps: "
-            << compress_count / (stop_seconds - start_seconds) << " fps.";
+       FILE* f = fopen ("check.j2c", "wb");
+       fwrite (recomp.data().get(), 1, recomp.size(), f);
+       fclose (f);
 }