1 files changed, 87 insertions, 0 deletions
diff --git a/test/amrwb-dec.c b/test/amrwb-dec.c
new file mode 100644
index 0000000..7a121e8
--- /dev/null
+++ b/test/amrwb-dec.c
@@ -0,0 +1,87 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include "wavwriter.h"
+#include <dec_if.h>
+
+/* From pvamrwbdecoder_api.h, by dividing by 8 and rounding up */
+const int sizes[] = { 17, 23, 32, 36, 40, 46, 50, 58, 60, 5, -1, -1, -1, -1, -1, 0 };
+
+int main(int argc, char *argv[]) {
+	FILE* in;
+	char header[9];
+	int n;
+	void *wav, *amr;
+	if (argc < 3) {
+		fprintf(stderr, "%s in.amr out.wav\n", argv[0]);
+		return 1;
+	}
+
+	in = fopen(argv[1], "rb");
+	if (!in) {
+		perror(argv[1]);
+		return 1;
+	}
+	n = fread(header, 1, 9, in);
+	if (n != 9 || memcmp(header, "#!AMR-WB\n", 9)) {
+		fprintf(stderr, "Bad header\n");
+		return 1;
+	}
+
+	wav = wav_write_open(argv[2], 16000, 16, 1);
+	if (!wav) {
+		fprintf(stderr, "Unable to open %s\n", argv[2]);
+		return 1;
+	}
+	amr = D_IF_init();
+	while (1) {
+		uint8_t buffer[500], littleendian[640], *ptr;
+		int size, i;
+		int16_t outbuffer[320];
+		/* Read the mode byte */
+		n = fread(buffer, 1, 1, in);
+		if (n <= 0)
+			break;
+		/* Find the packet size */
+		size = sizes[(buffer[0] >> 3) & 0x0f];
+		if (size < 0)
+			break;
+		n = fread(buffer + 1, 1, size, in);
+		if (n != size)
+			break;
+
+		/* Decode the packet */
+		D_IF_decode(amr, buffer, outbuffer, 0);
+
+		/* Convert to little endian and write to wav */
+		ptr = littleendian;
+		for (i = 0; i < 320; i++) {
+			*ptr++ = (outbuffer[i] >> 0) & 0xff;
+			*ptr++ = (outbuffer[i] >> 8) & 0xff;
+		}
+		wav_write_data(wav, littleendian, 640);
+	}
+	fclose(in);
+	D_IF_exit(amr);
+	wav_write_close(wav);
+	return 0;
+}
+