Download reddit-hosted videos/audio

download_video.py

import requests
import os

# change this url to the post's url
post_url = "https://www.reddit.com/r/holdmycatnip/comments/7vyada/hmc_so_i_can_drink_this_air_real_quick/"

# use UA headers to prevent 429 error
headers = {
    'User-Agent': 'My User Agent 1.0',
    'From': 'testyouremail@domain.com'
}
url = post_url + ".json"
data = requests.get(url, headers=headers).json()
media_data = data[0]["data"]["children"][0]["data"]["media"]

video_url = media_data["reddit_video"]["fallback_url"]
audio_url = video_url.split("DASH_")[0] + "audio"

print video_url, audio_url

# curl both audio and video separately
os.system("curl -o video.mp4 {}".format(video_url))
os.system("curl -o audio.wav {}".format(audio_url))

# mux them
os.system("ffmpeg -i video.mp4 -i audio.wav -c:v copy -c:a aac -strict experimental output.mp4")

Hi, its not working correctly. Audio filename is changes dynamicly
You can get it from dash_url:
media_data['reddit_video']['dash_url']
xml parse 2 versions of xmls:

1. filename = bs4.find("adaptationset", {'contenttype': 'audio'}).find('representation').find('baseurl').text
2. filename = bs4.find("representation", {'id': 'AUDIO-1'}).find('baseurl').text

The second trouble is if post is from subreddit, then:

data = data[0]["data"]["children"][0]["data"]
media_data = data["media"]
if not media_data:
    data = data['crosspost_parent_list'][0]
    media_data = data["media"]

and then working with media_data

Third problem. That is a audio filename. Its maybe mp4, maybe wav(as default). You need to check it (see filename in trouble 1)

Fourth problem is if no audio track. Check it by filename in dash_url. If no filename, then no audio track