Youtube video title and duration without api key - youtube

Question

How can get the youtube video title and duration without using api key ?
I have checked Youtube Video title with API v3 without API key? link but this only give the title and not the duration.
So how can I get duration also without api key ?

Answer 1

To people looking for an answer to this in 2020. You can do this using the Youtube Iframe API. You don't need a API key!
First you insert the api link into the JS like so:
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
After that you create the player with the desired videoID like this:
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '390',
width: '640',
videoId: 'SIWbjgPYcJY',
playerVars: {
'autoplay': 0,
'controls': 1
},
events: {
'onReady': onPlayerReady
}
});
}
Then you need to get the title and duration by assigning these in a variable to your HTML. We place this in the onPlayerReady.
function onPlayerReady(event) {
time = player.getDuration();
$(".dur").val(time);
title = player.getVideoData().title
$(".title").val(title);
}
Last thing is to put the player, duration and title in the HTML:
<div id="player"></div>
<br>
<span>Titel:</span><input class="title">
<br>
<span>duration:</span><input class="dur">
<br>
JSFIDDLE

Answer 2

You can use youtube-dl:
$ youtube-dl -e "https://www.youtube.com/watch?v=2i2khp_npdE"
Alan Walker - Sing Me To Sleep
$ youtube-dl --get-duration "https://www.youtube.com/watch?v=2i2khp_npdE"
3:12
Alternatively:
$ curl -s "https://www.youtube.com/watch?v=2i2khp_npdE" | tr '<' '\n' | awk -F'"' '/name="title"/ { print $4 }'
Alan Walker - Sing Me To Sleep
$ curl -s "https://www.youtube.com/watch?v=2i2khp_npdE" | awk -F'"' '/itemprop="duration"/ { print $4 }'
PT3M12S
You can use this bash function to convert from the Youtube format to seconds:
duration_calculation ()
{
local total_in_second=0
local hours=0
local minutes=0
local seconds=0
local duration="$1"
if [[ $duration =~ ^PT([0-9]{1,})H([0-9]{1,})M([0-9]{1,})S$ ]]; then
hours=$((hours + BASH_REMATCH[1]))
minutes=$((minutes + BASH_REMATCH[2]))
seconds=$((seconds + BASH_REMATCH[3]))
# PT1H4M H:M:00
elif [[ $duration =~ ^PT([0-9]{1,})H([0-9]{1,})M$ ]];then
hours=$((hours + BASH_REMATCH[1]))
minutes=$((minutes + BASH_REMATCH[2]))
# PT1H29S H:00:S
elif [[ $duration =~ ^PT([0-9]{1,})H([0-9]{1,})S$ ]]; then
hours=$((hours + BASH_REMATCH[1]))
seconds=$((seconds + BASH_REMATCH[2]))
# PT4M29S M:S
elif [[ $duration =~ ^PT([0-9]{1,})M([0-9]{1,})S$ ]]; then
minutes=$((minutes + BASH_REMATCH[1]))
seconds=$((seconds + BASH_REMATCH[2]))
# PT1H H:00:00
elif [[ $duration =~ ^PT([0-9]{1,})H$ ]]; then
hours=$((hours + BASH_REMATCH[1]))
# PT4M 00:M:00
elif [[ $duration =~ ^PT([0-9]{1,})M$ ]]; then
minutes=$((minutes + BASH_REMATCH[1]))
# PT29S S
elif [[ $duration =~ ^PT([0-9]{1,})S$ ]]; then
seconds=$((seconds + BASH_REMATCH[1]))
fi
total_in_seconds=$(( (hours * 3600) + (minutes * 60) + seconds ))
echo "$total_in_seconds"
}