Getting license to playback the content

Obtaining a license is essential for enabling playback of DRM-protected content. The process involves acquiring a valid license through the DRM system, granting authorized users access to view the protected media on their devices.

POST: https://app.tpstreams.com/api/v1/<org_code>/drm_license/?data=<encoded_data>/

You can obtain the Encoded data by performing the following steps in Python:

Generate Encoded Data

import base64
import binascii
import hashlib
import json


from Cryptodome.Cipher import AES
from Cryptodome.Util.Padding import pad

encoded_content_data = generate_content_data(<content_id>)
signature = generate_signature(encoded_content_data)
data = {"content_data": encoded_content_data, "signature": signature}
data = json.dumps(data, separators=(',', ':'))
encoded_data = base64.urlsafe_b64encode(data)

To generate encoded data you need to fetch content data Generating Content Data and signature Generate Signature

Generating Content Data:

You can obtain the request field by performing the following steps in Python:

import json
import base64
def generate_content_data(content_id):
  data = {
    "content_id": content_id,
    "download": true/false,
    "drm_type": "widevine/fairplay"
  }
  data = json.dumps(data, separators=(',', ':'))
  return base64.urlsafe_b64encode(data.encode())
# The result will be eyJjb250ZW50X2lkIjoiY2Y2YzMwZGQ1MGMxNDkyZTgyMzQ0ZWEzZTEzOWRhMWQifQ==

Generating Signature:

You can obtain the signature field by performing the following steps in Python:

import base64
import binascii
import hashlib
import json


from Cryptodome.Cipher import AES
from Cryptodome.Util.Padding import pad

def generate_signature(data, key, iv):
    hash = hashlib.sha1(data.encode()).digest()
    cipher = AES.new(
        binascii.unhexlify(key),
        AES.MODE_CBC,
        binascii.unhexlify(iv),
    )
    padded_hash = pad(hash, AES.block_size, style="pkcs7")
    signature = cipher.encrypt(padded_hash)
    return base64.b64encode(signature).decode()

key = "xxxx"  # AES Signing key
iv = "yyy"  # AES Signing iv
data = {
  "content_id": "cf6c30dd50c1492e82344ea3e139da1d"
}
data = json.dumps(data, separators=(',', ':'))
signature = generate_signature(data, key, iv)

Fields

Name	Type	Description	Required
org_code	string	The organization code for API endpoint	Yes
content_id	string	The unique identifier for the content (Should be a random UUID generated you. This UUID will be used for getting licenses for that video.)	Yes
AES_SIGNING_KEY	string	The AES key used for Widevine encryption	Yes
AES_SIGNING_IV	string	The initialization vector (IV) for Widevine encryption	Yes

info

AES_SIGNING_KEY , AES_SIGNING_IV and org_code will be provided by us.

To specify desired Widevine license specifications during the license request.Please check this Widevine Configuration

Check out this repository for decrypting the video by obtaining the license DRM Video Processing