videos.sproutvideo.com/embed/ downloader

sproutvideo.py

# needs PyAV BeautifulSoup4 and PyCryptoDome

import av
import base64
import json
import requests
from bs4 import BeautifulSoup
from Crypto.Cipher import AES
from io import BytesIO

def constructLink(dat: dict, type: str, bp: str, path: str):
    return f'https://{dat["base"]}.videos.sproutvideo.com/{dat["s3_user_hash"]}/{dat["s3_video_hash"]}/{bp}/{path}?Policy={dat["signatures"][type]["CloudFront-Policy"]}&Signature={dat["signatures"][type]["CloudFront-Signature"]}&Key-Pair-Id={dat["signatures"][type]["CloudFront-Key-Pair-Id"]}&sessionID={dat["sessionID"]}'

link = '<feed me a videos.sproutvideo.com embed link>'

html = requests.get(link).text

soup = BeautifulSoup(html, 'lxml')

dat = soup.find('script').text
dat = dat.split('= \'')[1].strip('\';')
dat = base64.b64decode(dat).decode()
dat = json.loads(dat)

indexm3u8link = constructLink(dat, 'm', 'video', 'index.m3u8')
print('main m3u8 index link:', indexm3u8link)

indexm3u8 = requests.get(indexm3u8link).text
indexm3u8 = indexm3u8.replace('#EXTM3U\n', '')
indexm3u8 = indexm3u8.split('\n')

for i in zip(indexm3u8[0::2], indexm3u8[1::2]):
    res = i[0].split('RESOLUTION=')[1].split(', ')[0]
    link = constructLink(dat, 'm', 'video', i[1])
    print(f'{res} m3u8 link: {link}')

m3u8chunks = requests.get(link).text
aeskeypath = constructLink(dat, 'k', 'video', m3u8chunks.split('#EXT-X-KEY:METHOD=AES-128,URI="')[1].split('",')[0])
aeskey = requests.get(aeskeypath).content
aesiv = m3u8chunks.split('IV=')[1].split('\n')[0].lstrip('0x')
aesiv = bytes.fromhex(aesiv)
print(aeskey, aesiv)
aesobj = AES.new(key=aeskey, mode=AES.MODE_CBC, iv=aesiv)
m3u8segments = m3u8chunks.split('#EXTINF:10.000000,\n', 1)[1].split('\n')
print(m3u8segments)
output_container = av.open(dat['title'], 'w')
video_stream = None
audio_stream = None
for i in zip(m3u8segments[0::2], m3u8segments[1::2]):
    if i[0].strip().endswith('.ts'):
        print('grabbing chunk', i[0].strip())
        chunk = requests.get(constructLink(dat, 't', 'video', i[0].strip())).content
        decrypted = aesobj.decrypt(chunk)
        input_container = av.open(BytesIO(decrypted))
        input_video = input_container.streams.get(video=0)[0]
        input_audio = input_container.streams.get(audio=0)[0]
        if not video_stream:
            video_stream = output_container.add_stream(template=input_video)
        if not audio_stream:
            audio_stream = output_container.add_stream(template=input_audio)
        for i in [(input_video, video_stream), (input_audio, audio_stream)]:
            for packet in input_container.demux(i[0]):
                if packet.dts is None:
                    continue
                packet.stream = i[1]
                output_container.mux(packet)
output_container.close()