如何将 mp4 文件直接从 S3 读取到 moviepy 中？

Question

知道如何将 S3 mp4 文件直接读取到 moviepy 中吗？

我努力了，

import boto3
from io import BytesIO
from moviepy.editor import *

client = boto3.client('s3')
obj =  client.get_object(Bucket='some-bucket', Key='some-file')
VideoFileClip(BytesIO(obj['Body'].read())) 

但我越来越，

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/<path>/lib/python3.6/site-packages/moviepy/video/io/VideoFileClip.py", line 91, in __init__
fps_source=fps_source)
File "/<path>/lib/python3.6/site-packages/moviepy/video/io/ffmpeg_reader.py", line 33, in __init__
fps_source)
File "/<path>/lib/python3.6/site-packages/moviepy/video/io/ffmpeg_reader.py", line 243, in ffmpeg_parse_infos
is_GIF = filename.endswith('.gif')
AttributeError: '_io.BytesIO' object has no attribute 'endswith'

其中路径是我的虚拟环境

Answer 1

这是一个老问题，提前为延迟表示歉意，但对于将来寻找潜在解决方案的任何人来说，您可以将带有直接 url 的视频加载到 VideoFileClip 中。

首先，您需要生成存储桶中对象的预签名 URL：

import boto3
import logging
def create_presigned_url(bucket_name, object_name, expiration=60):
"""Generate a presigned URL to share an S3 object

:param bucket_name: string
:param object_name: string
:param expiration: Time in seconds for the presigned URL to remain valid
:return: Presigned URL as string. If error, returns None.
"""

my_config = Config(
signature_version = 's3v4',)

# Generate a presigned URL for the S3 object
s3_client = boto3.client('s3',config=my_config)
try:
    response = s3_client.generate_presigned_url('get_object',
                                                Params={'Bucket':bucket_name,
                                                        'Key': object_name},
                                                ExpiresIn=expiration,
                                                )
except ClientError as e:
    logging.error(e)
    return None

# The response contains the presigned URL
return response

从那里，您可以将该确切的网址放入VideoFileClip：

import moviepy.editor as mpe
presignedurl=create_presigned_url(bucket,key)
vidclip=mpe.VideoFileClip(presignedurl)