Python简单实现音频数据压缩与解压

def compress_audio(data):
    compressed = []
    i = 0
    while i < len(data):
        # 尝试匹配Range模式（连续递增序列）
        range_start = i
        while i + 1 < len(data) and data[i + 1] == data[i] + 1:
            i += 1
        range_len = i - range_start + 1

        # 尝试匹配Hold模式（重复值序列）
        hold_start = range_start
        while hold_start + 1 < len(data) and data[hold_start + 1] == data[hold_start]:
            hold_start += 1
        hold_len = hold_start - range_start + 1

​​​​​​​        # 选择更长的压缩模式
        if range_len >= hold_len and range_len > 1:
            compressed.append(f"range({data[range_start]}, {data[i]})")
            i += 1
        elif hold_len > 1:
            compressed.append(f"hold({data[range_start]}, {hold_len})")
            i = range_start + hold_len
        else:
            compressed.append(str(data[i]))
            i = range_start + 1
    return compressed

data = [1, 2, 3, 5, 5, 5, 7, 8, 9, 10]

def decompress_audio(compressed):
    data = []
    for token in compressed:
        if token.startswith("range"):
            _, params = token.split("(")
            start, end = map(int, params[:-1].split(","))
            data.extend(range(start, end + 1))
        elif token.startswith("hold"):
            _, params = token.split("(")
            val, count = map(int, params[:-1].split(","))
            data.extend([val] * count)
        else:
            data.append(int(token))
    return data

compressed = ["range(1, 3)", "5", "hold(5, 3)", "range(7, 10)"]
decompressed = decompress_audio(compressed)
print(decompressed)  # 输出: [1, 2, 3, 5, 5, 5, 7, 8, 9, 10]