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我的脚本从 FLAC 文件中提取图像没有问题，但是当给定一个 MP3 文件时，它只会抓取第一张图像而不是其余的。

我尝试过的事情：

  • 将 ID3v2.3 转换为 ID3v2.4
  • 将 ID3v2.3 转换为 APEv2
  • 打印出完整的 track['pictures'] 数组。不超过 0 的范围。

该脚本采用两个命令行参数。第一个是挂载名称，它是图像将被写入的子目录。第二个是文件的路径。

示例：python extract_art.py "classic" "hello.mp3"

# -*- coding: UTF-8 -*-

# This script gets called from metadata.liq
# Run this script using Python 2

import sys
import random
import os
import codecs
from mutagenwrapper import read_tags

# Name of the stream (Exaples: anything-goes, anime)
mount_name = sys.argv[1]

# Name of the file to be opened
filename = sys.argv[2]

# Points to the path where images will be written to
full_path = "/mnt/album_art/" + mount_name + "/"

track = read_tags(filename)

try:
    # Check if there is album art
    album_art = track['pictures'][0]
except:
    # If album art cannot be read, return a null string to flag deletion on album art that pervious song wrote.
    album_art = ""

if album_art == "":
    try:
        # If no album art was found, attempt to delete album art that may have been previously written by another song
        os.remove(full_path + 'albumart.jpg')
        print("Deleted album art")
    except:
        # If there is no album art to delete
        print("No album art to delete")
else:
    #If album art was found in the current track, write the new album art and create the proper paths if necessary
    if not os.path.exists(os.path.dirname(full_path)):
            os.makedirs(os.path.dirname(full_path))
    with open(full_path + 'albumart.jpg', 'wb') as f:
            f.write(album_art)
            print("Wrote new album art")
            f.close()   

# Same as writing album art, except with background image

background_image = ""

try:
    background_image = track['pictures'][1]
except:
    if background_image == "":
        background_image = album_art
        print("No background image found, using album art as background iamge.")
    else:
        background_image = ""

if background_image == "":
    try:
        os.remove(full_path + 'backgroundimage.jpg')
        print("Deleted background image")
    except:
        print("No background image to delete")
else:
    if not os.path.exists(os.path.dirname(full_path)):
            os.makedirs(os.path.dirname(full_path))
    with open(full_path + 'backgroundimage.jpg', 'wb') as f:
            f.write(background_image)
            print("Wrote new background image")
            f.close()
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1 回答 1

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正如文档所说：

请注意，此模块仍处于早期开发阶段。许多功能不受支持...</p>

稍后，它解释了（除其他外）专辑封面和处理多值标签的限制，因此在一种格式中存在多个专辑封面标签的问题也就不足为奇了。这只是 0.0.5 版本……</p>

如果您想要更深入的解释，您可能需要深入研究来源或询问作者。（可能通过提交错误。）但我敢打赌，唯一的解决方案是“自己修复”或“等到其他人足够关心来实施它”。

于 2014-10-31T20:48:54.810 回答