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authorRonald S. Bultje <rsbultje@gmail.com>2012-07-03 20:14:09 -0700
committerAnton Khirnov <anton@khirnov.net>2012-07-11 21:24:37 +0200
commit667fb97a650dcf9ad50327c7b51f8a95d1e16077 (patch)
tree576d130d4e9ce26c5b99d986ea2ef5473c27033c /compat
parent183b1c2268529bbb8389d572deb00083c49682dc (diff)
downloadffmpeg-streaming-667fb97a650dcf9ad50327c7b51f8a95d1e16077.zip
ffmpeg-streaming-667fb97a650dcf9ad50327c7b51f8a95d1e16077.tar.gz
dct/fft-test: use a replacement getopt() if the system has none present.
This allows compiling and running these tests on systems lacking a built- in version of getopt(), such as MSVC. Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'compat')
-rw-r--r--compat/getopt.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/compat/getopt.c b/compat/getopt.c
new file mode 100644
index 0000000..3a873b2
--- /dev/null
+++ b/compat/getopt.c
@@ -0,0 +1,84 @@
+/*
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * This file was copied from the following newsgroup posting:
+ *
+ * Newsgroups: mod.std.unix
+ * Subject: public domain AT&T getopt source
+ * Date: 3 Nov 85 19:34:15 GMT
+ *
+ * Here's something you've all been waiting for: the AT&T public domain
+ * source for getopt(3). It is the code which was given out at the 1985
+ * UNIFORUM conference in Dallas. I obtained it by electronic mail
+ * directly from AT&T. The people there assure me that it is indeed
+ * in the public domain.
+ */
+
+#define EOF (-1)
+
+static int opterr = 1;
+static int optind = 1;
+static int optopt;
+static char *optarg;
+
+#undef fprintf
+
+static int getopt(int argc, char *argv[], char *opts)
+{
+ static int sp = 1;
+ int c;
+ char *cp;
+
+ if (sp == 1)
+ if (optind >= argc ||
+ argv[optind][0] != '-' || argv[optind][1] == '\0')
+ return EOF;
+ else if (!strcmp(argv[optind], "--")) {
+ optind++;
+ return EOF;
+ }
+ optopt = c = argv[optind][sp];
+ if (c == ':' || (cp = strchr(opts, c)) == NULL) {
+ fprintf(stderr, ": illegal option -- %c\n", c);
+ if (argv[optind][++sp] == '\0') {
+ optind++;
+ sp = 1;
+ }
+ return '?';
+ }
+ if (*++cp == ':') {
+ if (argv[optind][sp+1] != '\0')
+ optarg = &argv[optind++][sp+1];
+ else if(++optind >= argc) {
+ fprintf(stderr, ": option requires an argument -- %c\n", c);
+ sp = 1;
+ return '?';
+ } else
+ optarg = argv[optind++];
+ sp = 1;
+ } else {
+ if (argv[optind][++sp] == '\0') {
+ sp = 1;
+ optind++;
+ }
+ optarg = NULL;
+ }
+
+ return c;
+}
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