dolbyio-rest-apis 3.6.2

A Python wrapper for the Dolby.io REST APIs.

Dolby.io REST APIs Client for Python

Python wrapper for the dolby.io REST Communications, Streaming and Media APIs.

Install this project

Check the dolbyio-rest-apis package on PyPI. To install the latest stable python package run the following command:

python3 -m pip install dolbyio-rest-apis

Upgrade your package to the latest version:

python3 -m pip install --upgrade dolbyio-rest-apis

Logging

You can change the log level by using the Python logging library.

import logging

logging.basicConfig(level='DEBUG')

Authentication

In order to make API calls for most operations of the Communications APIs and Media APIs, you must get an access token using this API:

import asyncio
from dolbyio_rest_apis import authentication

APP_KEY = 'YOUR_APP_KEY'
APP_SECRET = 'YOUR_APP_SECRET'

loop = asyncio.get_event_loop()

task = authentication.get_api_token(APP_KEY, APP_SECRET)
at = loop.run_until_complete(task)

print(f'API Token: {at.access_token}')

Communications Examples

Get a client access token

To get an access token that will be used by the client SDK for an end user to open a session against dolby.io, use the following code:

import asyncio
from dolbyio_rest_apis.communications import authentication

APP_KEY = 'YOUR_APP_KEY'
APP_SECRET = 'YOUR_APP_SECRET'

loop = asyncio.get_event_loop()

task = authentication.get_api_token(APP_KEY, APP_SECRET)
at = loop.run_until_complete(task)

print(f'Access Token: {at.access_token}')

Because most of the APIs are asynchronous, you can write an async function like that:

from dolbyio_rest_apis.communications import authentication

APP_KEY = 'YOUR_APP_KEY'
APP_SECRET = 'YOUR_APP_SECRET'

async def get_client_access_token():
    at = await authentication.get_client_access_token(APP_KEY, APP_SECRET)
    print(f'Access Token: {at.access_token}')

Create a conference

To create a Dolby Voice conference, you first must retrieve an API Access Token, then use the following code to create the conference.

import asyncio
from dolbyio_rest_apis import authentication
from dolbyio_rest_apis.communications import conference
from dolbyio_rest_apis.communications.models import Participant, Permission, VideoCodec

APP_KEY = 'YOUR_APP_KEY'
APP_SECRET = 'YOUR_APP_SECRET'

owner_id = '' # Identifier of the owner of the conference
alias = '' # Conference alias

participants = [
    Participant('hostA', [Permission.JOIN, Permission.SEND_AUDIO, Permission.SEND_VIDEO], notify=True),
    Participant('listener1', [Permission.JOIN], notify=False),
]

loop = asyncio.get_event_loop()

# Request an API token
task = authentication.get_api_token(APP_KEY, APP_SECRET)
at = loop.run_until_complete(task)

task = conference.create_conference(
    at.access_token,
    owner_id,
    alias,
    video_codec=VideoCodec.VP8,
    participants=participants
)
conf = loop.run_until_complete(task)

print(f'Conference created: {conf.id}')

Real-time Streaming Examples

Create a publish token

import asyncio
from dolbyio_rest_apis.streaming import publish_token
from dolbyio_rest_apis.streaming.models.publish_token import CreatePublishToken, CreateUpdatePublishTokenStream

API_SECRET = '' # Retrieve your API Secret from the dashboard

create_token = CreatePublishToken('my_token')
create_token.streams.append(CreateUpdatePublishTokenStream('feed1', False))

loop = asyncio.get_event_loop()

task = publish_token.create(API_SECRET, create_token)
token = loop.run_until_complete(task)

print(token)

Create a subscribe token

import asyncio
from dolbyio_rest_apis.streaming import subscribe_token
from dolbyio_rest_apis.streaming.models.subscribe_token import CreateSubscribeToken, CreateUpdateSubscribeTokenStream

API_SECRET = '' # Retrieve your API Secret from the dashboard

create_token = CreateSubscribeToken('my_token')
create_token.streams.append(CreateUpdateSubscribeTokenStream('feed1', False))

loop = asyncio.get_event_loop()

task = publish_token.create(API_SECRET, create_token)
token = loop.run_until_complete(task)

print(token)

Media Examples

Here is an example on how to upload a file to the Dolby.io temporary cloud storage, enhance that file and download the result.

Get an API token

Get the App Key and Secret from the Dolby.io dashboard and use the following code in your python script.

import asyncio
from dolbyio_rest_apis import authentication

APP_KEY = 'YOUR_APP_KEY'
APP_SECRET = 'YOUR_APP_SECRET'

loop = asyncio.get_event_loop()

task = authentication.get_api_token(APP_KEY, APP_SECRET, 2 * 60 * 60) # 2 hours
at = loop.run_until_complete(task)
print(f'API token: {at.access_token}')

Upload a file for processing

Add the following import to your script.

from dolbyio_rest_apis.media import io

Using the API token, start by requesting an upload URL.

# Temporary storage URL that will be used as reference for the job processing
input_url = 'dlb://in/file.mp4'

# Get an Upload URL
task = io.get_upload_url(
    access_token=at.access_token,
    dlb_url=input_url,
)
upload_url = loop.run_until_complete(task)
print(f'Upload URL: {upload_url}')

Upload a media file to the Dolby.io temporary cloud storage for processing:

# Location of the original file on the local machine
IN_FILE_PATH = '/path/to/original_file.mp4'

# Upload the file
task = io.upload_file(
    upload_url=upload_url,
    file_path=IN_FILE_PATH,
)
loop.run_until_complete(task)

Start an enhance job

Add the following import to your script.

import json
from dolbyio_rest_apis.media import enhance

Generate a job description and send it to Dolby.io.

# Temporary storage URL where the service will write the result file to
output_url = 'dlb://out/file.mp4'

# Job description
job = {
    'input': input_url,
    'output': output_url,
    'content': {
        'type': 'podcast',
    },
}
job_str = json.dumps(job, indent=4)
print(job_str)

# Start the enhance job and get a job ID back
task = enhance.start(at.access_token, job_str)
job_id = loop.run_until_complete(task)
print(f'Job ID: {job_id}')

Wait for the job to complete

Add the following import to your script.

import sys
import time

Get the job status and wait until it is completed.

task = enhance.get_results(at.access_token, job_id)
result = loop.run_until_complete(task)
while result.status in ( 'Pending', 'Running' ):
    print(f'Job status is {result.status}, taking a 5 second break...')
    time.sleep(5)

    task = enhance.get_results(at.access_token, job_id)
    result = loop.run_until_complete(task)

if result.status != 'Success':
    print('There was a problem with processing the file')
    print(json.dumps(result, indent=4))
    sys.exit(1)

Download a processed file

At this stage, the file has been processed and written to the temporary storage so we can download it.

# Where to download the file on the local machine
OUT_FILE_PATH = '/path/to/processed_file.mp4'

task = io.download_file(
    access_token=at.access_token,
    dlb_url=output_url,
    file_path=OUT_FILE_PATH,
)
loop.run_until_complete(task)