If you inspect a YouTube video with cc turned on, you can see
document.getElementsByClassName('captions-text')
is being populated dynamically.
Q: How can I get the transcript of a closed-caption YouTube video?
I've tried embedding it in an iFrame, but then for some reason I can't find it in the dom any longer.
I wonder if I can use object.observe to get the text as it's streaming, or what would be best would be to simply get it along with their time codes in one large string or object.
Related
YouTube supports interactive-transcripts, using both machine-generated and user-uploaded transcripts. This is very useful for hearings, lectures, speeches, and educational videos where a visitor might want to read along or jump around. For example in this video:
https://www.youtube.com/watch?v=IY3U2GXhz44
The visitor can click on "...More" and then "Transcript" to view the interactive-transcript.
How does a video owner make that hidden feature automatically open for visitors? I cannot find any documented method for doing that through the API for either embed or linked videos. Is there an undocumented method in the API, or a URL parameter like "&action-panel-transcript=true" that works the way I'd expect it to?
As for url parameter, you can try adding &cc_load_policy=1 behind the rel=0 if it's an embedded video or &yt:cc=on at the end of the url if it's a link to the video.
Source: https://www.makeuseof.com/tag/force-subtitles-embedded-youtube-video/
we are using the youtube api to keep track of youtube videos. currently we "watch" around 30k videos. now we have the issue that we want to figure out which videos have been deleted. is there some way to get e.g. a list of all deleted vids of a channel or some other way?
sending a single request (and handling 404) for each video doesn't seem to be a good idea.
I guess you can not do it with only youtube api.
You can create your own database of all your videos and channels and periodically sync it with youtube to check what video status changed or not exists in list anymore.
Youtube API has method Videos.list, it returns list of all your videos.
Another tricky way: load every video url and check the size of content instead of parsing html.
If video exists then content size about 50kb, if not - 15kb. It seems youtube do not pass Content-Length header. That's why you need to load content to check size.
But I prefer the first way.
I'm currently live streaming a tv channel (beta phase yet) using YouTube.
How do I add captions in more than 1 language for a live stream (with POST caption URL)?
Even using just one language captions, how can I change the language? (The only option to the user - on web or app - is "EN" even if the caption is in other language)
When using POST approach do send captions on live streams how/where to set/define duration of each subtitle?
Please don't refer this url link. I know it already.
AFAIK you can do only one language, if any at all. I have tried using the POST method YouTube describes on the page you link to - without success. Only get
Result 299: "Error donwloading [...] Can't parse HTTP POST body."
Tried searching all kinds of support forums, but it seems no one has any advice and YouTube never replies to questions related to live caption. Including here...
According to the docs on contentDetails.closedCaptionsType, you can embed captions in your video stream using the option closedCaptionsEmbedded and provide EIA-608 and/or CEA-708 formatted captions in your video from your encoder.
Sending multiple caption tracks muxed with your video with different languages specified by the "Language" tag on the caption stream should allow the user to switch between different captions in the web player.
When using the YouTube api to query and retrieve videos, is there a way to limit results only official content? I want to retrieve the new music videos for certain artists but I want to make sure I am only receiving real videos and not UGC stuff. Can this be accomplished? Thank you.
There is no search parameter that ensures that you only get back "real" music videos. (And the line between a "real" video and user-generated content isn't always clear.)
i have a simple youtube search like this :
http://gdata.youtube.com/feeds/api/videos?q='some-value'&v=2&format=5&start-index=1&max-results=10&alt=jsonc&callback='some-function'&orderby=viewCounts&sortorder=descending);
I thought I can use format=5 to get the video that's allow embedded. However, I still getting video that said " it's restricted payback from certain sites."
Any ideas?
You're getting back a video that's embeddable on certain sites, and not embeddable on others. There's more information about embed restrictions at
http://apiblog.youtube.com/2011/12/understanding-playback-restrictions.html