如何使用媒体处理PythonSDK拼接开板和尾板_媒体处理(MPS)-阿里云帮助中心

在视频制作中，可以将含有关键信息的视频起始、结尾内容以画中画的形式拼接嵌入到正片视频中，称为开板、尾板。本文为您介绍媒体处理中Python SDK设置开板和尾板的示例代码。

示例代码

import os
import json

from urllib.parse import quote
from aliyunsdkcore.client import AcsClient
from aliyunsdkcore.acs_exception.exceptions import ClientException
from aliyunsdkcore.acs_exception.exceptions import ServerException
from aliyunsdkcore.auth.credentials import AccessKeyCredential
from aliyunsdkmts.request.v20140618.SubmitJobsRequest import SubmitJobsRequest

# 读取环境变量中设置的ACCESS_KEY   ACCESS_KEY_SECRET信息
credentials = AccessKeyCredential(os.environ['ALIBABA_CLOUD_ACCESS_KEY_ID'], os.environ['ALIBABA_CLOUD_ACCESS_KEY_SECRET'])
# region_id 为调用的服务地域ID，支持的地域参考 https://help.aliyun.com/document_detail/43248.html
client = AcsClient(region_id = 'cn-shanghai', credential = credentials)

mps_region_id = 'cn-shanghai'
pipeline_id = '9bad33d1c21c22c4df9c6****'
template_id = 'S00000001-200030'
oss_location = 'oss-cn-shanghai'
oss_bucket = '<your bucket name>'
oss_input_object = 'input.mp4'
oss_output_object = 'output.mp4'
head_object = 'head.mp4'
tail_object = 'tail.mp4'
request = SubmitJobsRequest()
request.set_accept_format('json')
# Input参数结构 object需要进行url编码
job_input = {'Location': oss_location,
             'Bucket': oss_bucket,
             'Object': quote(head_object) }
request.set_Input(json.dumps(job_input))
# Output参数结构
output = {'OutputObject': quote(oss_output_object)}
output['TemplateId'] = template_id
# Output->OpeningList开板参数结构
opening_video = {'OpenUrl': 'http://%s.%s.aliyuncs.com/%s'%(oss_bucket, oss_location, quote(head_object)),
                 'Width': 640,
                 'Start': 2}
output['OpeningList'] = [opening_video]
# Output->TailSlateList尾板参数结构
tailslate_video = {'TailUrl': 'http://%s.%s.aliyuncs.com/%s'%(oss_bucket, oss_location, quote(tail_object)),
                   'Width': 640,
                   'BlendDuration': 3,
                   'BgColor': 'Black'}
output['TailSlateList'] = [tailslate_video]

# Outputs输出参数结构
outputs = [output]
request.set_Outputs(json.dumps(outputs))
request.set_OutputBucket(oss_bucket)
request.set_OutputLocation(oss_location)
request.set_PipelineId(pipeline_id)

response_str = client.do_action_with_exception(request)
response = json.loads(response_str)
# 输出打印
print(str(response, encoding='utf-8'))