Question

所以我一直在为Discordapp开发音乐播放器。问题是我想要显示歌曲标题和歌曲艺术家。我该怎么做呢

player = voice_stream.create_ffmpeg_player('./audio_library/1.mp3')

            # FFProbing for info
p = sp.Popen(['ffprobe', '-v', 'quiet', '-print_format', 'json=compact=1', '-show_format',
              './audio_library/1.mp3'], stdout=sp.PIPE, stderr=sp.PIPE)
op = p.communicate()
# a = dict(op)
# tit = a['title']
# art = a['artist']
# print(tit + '\n' + art)
ops = str(op)
print('op :- ' + ops)
opsn = re.sub("\r\n", "", ops)
print('opsn :- ' + opsn)

谢谢。如果可能，我也可以知道如何将此数据转换为json格式。我尝试使用 json.loads（op），但我收到错误，说这是一个元组。

我目前的输出是这样的： -

op :- (b'{\r\n    "format": { "filename": "./audio_library/1.mp3", "nb_streams": 1, "nb_programs": 0, "format_name": "mp3", "format_long_name": "MP2/3 (MPEG audio layer 2/3)", "start_time": "0.000000", "duration": "351.190200", "size": "14062151", "bit_rate": "320331", "probe_score": 50,\r\n        "tags": { "title": "Rescue Me (Sigma Remix)", "artist": "Skepta", "encoded_by": "Lavf52.31.0" } }\r\n}\r\n', b'')


opsn :- (b'{\r\n    "format": { "filename": "./audio_library/1.mp3", "nb_streams": 1, "nb_programs": 0, "format_name": "mp3", "format_long_name": "MP2/3 (MPEG audio layer 2/3)", "start_time": "0.000000", "duration": "351.190200", "size": "14062151", "bit_rate": "320331", "probe_score": 50,\r\n        "tags": { "title": "Rescue Me (Sigma Remix)", "artist": "Skepta", "encoded_by": "Lavf52.31.0" } }\r\n}\r\n', b'')

Answer 1

你需要获取元组中的第一个条目，解码字节，并解析json：

import json
import pprint

op_json = json.loads(op[0].decode('utf-8'))

title = op_json['format']['tags']['title']
artist = op_json['format']['tags']['artist']
print('title:', title)
print('artist:', artist)
print()
pprint.pprint(op_json)

打印：

title: Rescue Me (Sigma Remix)
artist: Skepta

{'format': {'bit_rate': '320331',
            'duration': '351.190200',
            'filename': './audio_library/1.mp3',
            'format_long_name': 'MP2/3 (MPEG audio layer 2/3)',
            'format_name': 'mp3',
            'nb_programs': 0,
            'nb_streams': 1,
            'probe_score': 50,
            'size': '14062151',
            'start_time': '0.000000',
            'tags': {'artist': 'Skepta',
                     'encoded_by': 'Lavf52.31.0',
                     'title': 'Rescue Me (Sigma Remix)'}}}

仅从ffprobe输出获取歌曲标题和歌曲艺术家

1 个答案: