Add test for the python module.

.github/workflows/build_and_test.yml

@@ -86,3 +86,6 @@ jobs:
 
       - name: install
         run: pip install python/
+
+      - name: test
+        run: ./scripts/do-test.sh "${PYTHON_CMD} test.py"

test.py

@@ -0,0 +1,46 @@
+import argparse
+import struct
+from G722 import G722
+
+def main():
+    parser = argparse.ArgumentParser(description='G.722 codec utility')
+    parser.add_argument('input_file', type=str, help='Input file path')
+    parser.add_argument('output_file', type=str, help='Output file path')
+    parser.add_argument('--sln16k', action='store_true', help='Use 16000 Hz sample rate')
+    parser.add_argument('--encode', action='store_true', help='Encode mode')
+    parser.add_argument('--bend', action='store_true', help='Use big-endian byte order')
+    args = parser.parse_args()
+
+    sample_rate = 16000 if args.sln16k else 8000
+    bit_rate = 64000  # Example bit rate
+
+    try:
+        with open(args.input_file, 'rb') as fi, open(args.output_file, 'wb') as fo:
+            codec = G722(sample_rate, bit_rate)
+            if args.encode:
+                while True:
+                    pcm_data = fi.read(2 * 1024)  # Read blocks of 2048 bytes
+                    if not pcm_data:
+                        break
+                    # Convert samples to little or big endian based on flag
+                    format_string = '>' if args.bend else '<'
+                    pcm_samples = struct.unpack(format_string + 'h' * (len(pcm_data) // 2), pcm_data)
+                    encoded_data = codec.encode(pcm_samples)
+                    fo.write(encoded_data)
+            else:
+                while True:
+                    encoded_data = fi.read(1024)  # Read blocks of 1024 bytes
+                    if not encoded_data:
+                        break
+                    decoded_samples = codec.decode(encoded_data)
+                    # Convert samples to little or big endian based on flag
+                    format_string = '>' if args.bend else '<'
+                    output_data = struct.pack(format_string + 'h' * len(decoded_samples), *decoded_samples)
+                    fo.write(output_data)
+
+    except IOError as e:
+        print(f"File error: {e}", file=sys.stderr)
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()