diff options
Diffstat (limited to 'decoder.py')
| -rw-r--r-- | decoder.py | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -15,6 +15,7 @@ parser.add_argument("-y", "--width", help="grid width", default=100, type=int) parser.add_argument("-f", "--fps", help="frame rate", default=30, type=int) parser.add_argument("-l", "--level", help="error correction level", default=0.1, type=float) parser.add_argument("-s", "--size", help="number of bytes to decode", default=2**16, type=int) +parser.add_argument("-e", "--erasure", help="detect erasures", action="store_true") args = parser.parse_args() cheight = cwidth = max(args.height // 10, args.width // 10) @@ -47,9 +48,9 @@ while data is None: ret, raw_frame = cap.read() if not ret: print("End of stream") - sys.exit(1) - # cv2.imshow("", raw_frame) - # cv2.waitKey(33) + break + cv2.imshow("", raw_frame) + cv2.waitKey(1) # raw_frame is a uint8 BE CAREFUL raw_frame = cv2.cvtColor(raw_frame, cv2.COLOR_BGR2RGB) @@ -118,7 +119,8 @@ while data is None: frame = (frame[::2] << 4) + frame[1::2] frame = np.pad(frame, (0, (len(frame) + 254) // 255 * 255 - len(frame))) frame = np.ravel(frame.reshape(255, len(frame) // 255), "F")[: frame_size // 2] - data = decoder.decode(bytes(rsc.decode(frame ^ frame_xor, erase_pos=list(np.where(frame == 0)[0]))[0])) + erase_pos = list(np.where(frame == 0)[0]) if args.erasure else [] + data = decoder.decode(bytes(rsc.decode(frame ^ frame_xor, erase_pos=erase_pos)[0])) print("Decoded frame") except KeyboardInterrupt: sys.exit() |