[1/4] HR support: Add autotools skeleton for libgsmhr

Not functional yet, just the autotools magic to make a library

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/libgsmhr/libgsmhr.c b/libgsmhr/libgsmhr.c
new file mode 100644
index 0000000..d10d855
--- /dev/null
+++ b/libgsmhr/libgsmhr.c
@@ -0,0 +1,55 @@
+/* HR (GSM 06.20) codec wrapper */
+
+/*
+ * This file is part of gapk (GSM Audio Pocket Knife).
+ *
+ * gapk 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * gapk 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 gapk.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include <gsmhr/gsmhr.h>
+
+
+#define EXPORT __attribute__((visibility("default")))
+
+
+struct gsmhr {
+	int stub;
+};
+
+EXPORT struct gsmhr *
+gsmhr_init(void)
+{
+	return NULL;
+}
+
+EXPORT void
+gsmhr_exit(struct gsmhr *state)
+{
+	return;
+}
+
+EXPORT int
+gsmhr_encode(struct gsmhr *state, int16_t *hr_params, const int16_t *pcm)
+{
+	return 0;
+}
+
+EXPORT int
+gsmhr_decode(struct gsmhr *state, int16_t *pcm, const int16_t *hr_params)
+{
+	return 0;
+}