early-access version 1432

externals/ffmpeg/libavutil/tests/adler32.c

@@ -0,0 +1,55 @@
+/*
+ * 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
+ */
+
+// LCOV_EXCL_START
+
+#include "libavutil/timer.h"
+
+#include <string.h>
+
+#include "libavutil/log.h"
+#include "libavutil/adler32.h"
+
+#define LEN 7001
+
+static volatile int checksum;
+
+int main(int argc, char **argv)
+{
+    int i;
+    uint8_t data[LEN];
+
+    av_log_set_level(AV_LOG_DEBUG);
+
+    for (i = 0; i < LEN; i++)
+        data[i] = ((i * i) >> 3) + 123 * i;
+
+    if (argc > 1 && !strcmp(argv[1], "-t")) {
+        for (i = 0; i < 1000; i++) {
+            START_TIMER;
+            checksum = av_adler32_update(1, data, LEN);
+            STOP_TIMER("adler");
+        }
+    } else {
+        checksum = av_adler32_update(1, data, LEN);
+    }
+
+    av_log(NULL, AV_LOG_DEBUG, "%X (expected 50E6E508)\n", checksum);
+    return checksum == 0x50e6e508 ? 0 : 1;
+}
+// LCOV_EXCL_STOP