[FFmpeg-soc] [soc]: r5050 - amr/cod2amr.c

[cmcq]

Author: cmcq
Date: Wed Aug 12 22:14:17 2009
New Revision: 5050

Log:
Tool for converting the AMR test sequence format to .amr

Added:
   amr/cod2amr.c

Added: amr/cod2amr.c
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ amr/cod2amr.c	Wed Aug 12 22:14:17 2009	(r5050)
@@ -0,0 +1,57 @@
+// Converts a bitstream file (the test vectors in 3GPP TS 26.074) to .amr
+
+// This uses the code in 3GPP TS 26.073. To compile:
+//
+// gcc -I26073-800/c-code -DDEBUG -DWMOPS=0 -DVAD1 -DMMS_IO \
+//     -Wall -W cod2amr.c 26073-code/sp_enc.c -o cod2amr
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "frame.h"
+#include "sp_enc.h"
+
+#define AMR_MAGIC_NUMBER "#!AMR\n"
+#define MAX_SERIAL_SIZE 244
+#define MAX_PACKED_SIZE (MAX_SERIAL_SIZE / 8 + 2)
+#define SERIAL_FRAMESIZE (1+MAX_SERIAL_SIZE+5)
+
+int main(int argc, char *argv[])
+{
+    int16_t serial[SERIAL_FRAMESIZE];
+    uint8_t packed_bits[MAX_PACKED_SIZE];
+    size_t packed_size;
+    int frameno = 0;
+
+    if (argc > 1)
+        goto usage;
+
+    fputs(AMR_MAGIC_NUMBER, stdout);
+    while (fread(serial, 2, SERIAL_FRAMESIZE, stdin) == SERIAL_FRAMESIZE) {
+        enum TXFrameType tx_type = serial[0];
+        enum Mode mode = serial[1+MAX_SERIAL_SIZE];
+
+        // Reject DTX frames so that we can assume mode==used_mode.
+        if (tx_type != TX_SPEECH_GOOD) {
+            fprintf(stderr, "tx_type %d not supported\n", tx_type);
+            return 3;
+        }
+        packed_size = PackBits(mode, 0, tx_type, &serial[1], packed_bits);
+
+        if (++frameno >= 3)
+            continue; // Skip homing frames
+
+        if (fwrite(packed_bits, 1, packed_size, stdout) != packed_size) {
+            fprintf(stderr, "output error: %s\n", strerror(errno));
+            return 2;
+        }
+    }
+    return 0;
+
+usage:
+    fprintf(stderr, "Usage: %s <in.cod >out.amr\n", argv[0]);
+    return 1;
+}