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README.rst

Django Elastic Transcoder

Build Status Coverage Status

django-elastic-transcoder is an Django app, let you integrate AWS Elastic Transcoder in Django easily.

What is provided in this package?

  • Transcoder class
  • URL endpoint for receive SNS notification
  • Signals for PROGRESS, ERROR, COMPLETE
  • EncodeJob model

Workflow

https://github.com/StreetVoice/django-elastic-transcoder/blob/master/docs/images/workflow.jpg

Install

First, install dj_elastictranscode with pip

$ pip install django-elastic-transcoder

Then, add dj_elastictranscoder to INSTALLED_APPS

INSTALLED_APPS = (
    ...
    'dj_elastictranscoder',
    ...
)

Bind urls.py

urlpatterns = patterns('',
    ...
    url(r'^dj_elastictranscoder/', include('dj_elastictranscoder.urls')),
    ...
)

Migrate

$ ./manage.py migrate

Setting up AWS Elastic Transcoder

  1. Create a new Pipeline in AWS Elastic Transcoder.
  2. Hookup every Notification.
  3. Subscribe SNS Notification through HTTP
  4. You are ready to encode!

Required Django settings

Please settings up variables below to make this app works.

AWS_ACCESS_KEY_ID = <your aws access key id>
AWS_SECRET_ACCESS_KEY = <your aws secret access key>
AWS_REGION = <aws region>

Usage

For instance, encode an mp3

from dj_elastictranscoder.transcoder import Transcoder

input = {
    'Key': 'path/to/input.mp3',
}

outputs = [{
    'Key': 'path/to/output.mp3',
    'PresetId': '1351620000001-300040' # for example: 128k mp3 audio preset
}]

pipeline_id = '<pipeline_id>'

transcoder = Transcoder(pipeline_id)
transcoder.encode(input, outputs)

# your can also create a EncodeJob for object automatically
transcoder.create_job_for_object(obj)


# Transcoder can also work standalone without Django
# just pass region and required aws key/secret to Transcoder, when initiate

transcoder = Transcoder(pipeline_id, AWS_REGION, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY)

Setting Up AWS SNS endpoint

AWS Elastic Transcoder can send various SNS notification to notify your application, like PROGRESS, ERROR, WARNING and COMPLETE

So this package provide a endpoint to receieve these notifications, for you to update transcode progress. without checking by your self.

Go to SNS section in AWS WebConsole to choose topic and subscribe with the url below.

http://<your-domain>/dj_elastictranscoder/endpoint/

Before notification get started to work, you have to activate SNS subscription, you will receive email with activation link.

After subscribe is done, you will receive SNS notification.

Signals

This package provide various signals for you to get notification, and do more things in your application. you can check the signals usage in tests.py for more usage example.

  • transcode_onprogress
  • transcode_onerror
  • transcode_oncomplete

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Django + AWS Elastic Transcoder

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