Before translating any video, I decided to actually create a summary of what already have been done. Don't get me wrong - this is not effect of my work. I wrote a script, which analyzed current state of YouTube videos from aantonop channel. I used youtube-dl for that:

youtube-dl  https://www.youtube.com/user/aantonop/ --write-sub --all-subs --skip-download

and later I used my script:

import re
from collections import defaultdict
from glob import glob


languages = set()
videos = {}

for filepath in glob("./subtitles/original/*"):
    filename = filepath.replace("./subtitles/original/", "")
    title, youtube_id, lang = re.match(r"(.*)-(.{11,13})\.(.*)\.vtt", filename).groups()

    languages.add(lang)

    if title not in videos:
        videos[youtube_id] = {
            "title": title,
            "subtitles": [{"lang": lang, "filepath": filepath}]
        }

    else:
        videos[youtube_id]["subtitles"].append({{"lang": lang, "filepath": filepath}})


    print(filename)


headers = ["No.", "Title"] + list(languages)
langs = list(languages)

print("|", end="")
for header in ["No.", "Title"] + langs:
    print(" {} |".format(header), end="")
print("")

print("|", end="")
for i in range(len(headers)):
    print("----|", end="")
print("")


def multiline_split(str, char_per_line):
    words = str.split(" ")

    result = ""
    line = ""
    for word in words:
        if len(line + word) < char_per_line:
            line += " " + word
        else:
            result += line + "
"
            line = word

    result += line

    return result

lang_stat = defaultdict(int)

for i, (youtube_id, video) in enumerate(videos.items()):
    print("| {} |".format(i+1), end="", flush=True)
    print(" [{title}]({youtube_link}) |".format(
        title=multiline_split(video["title"], 25),
        youtube_link="https://www.youtube.com/watch?v={}".format(youtube_id)
    ), end="", flush=True)

    for lang in langs:

        if lang in [sub["lang"] for sub in video["subtitles"]]:
            print(" ✓ |", end="", flush=True)
            lang_stat[lang] += 1
        else:
            print(" |", end="", flush=True)

    print("")

print("")

Result

More stats

Andreas currently has 238 videos uploaded on his channel.

• 23 of them has English transcription
• 7 of them has Spanish translation
• 4 of them has Latin/Spanish (es-419) translation
• 2 of them has Dutch translation
• single videos are translated to: Chinese (Simplified), German, Italian, Russian, French