调用YouTube get_video_info接口时出现url_encoded_fmt_stream_map缺失，API是否更新？

Yep, you're absolutely right—YouTube has recently updated the response structure of the get_video_info endpoint, and the url_encoded_fmt_stream_map field you relied on is no longer included in the response. This isn't a random glitch; it's part of YouTube's ongoing efforts to restrict non-official access to direct video stream URLs.

Why the Change Happened #

• YouTube has been cracking down on unofficial methods of extracting video streams, as these bypass their embedded player policies, content monetization systems, and copyright protection measures. The url_encoded_fmt_stream_map was a legacy field that exposed unobfuscated, direct stream URLs, and it’s now been phased out to align with their current security and content management practices.

What You Can Do Next #

1. Migrate to Official APIs (Recommended) #

The only reliable, long-term solution is to use YouTube’s officially supported APIs, which are designed to avoid sudden breaks like this:

• YouTube Data API v3: Use the videos.list endpoint with your video ID, setting part=contentDetails to fetch metadata about the video’s streaming options. You’ll need a valid API key for this, and there are free quota limits for non-commercial use.
• YouTube Player API: If your goal is to embed or play videos, this API lets you integrate the official YouTube player directly into your app/website. It handles all stream playback securely, so you don’t need to worry about fetching or managing direct URLs at all.

2. Temporary Workaround (Not Recommended for Production) #

If you need a short-term fix while migrating to official tools, you can extract stream data from the player_response field in the get_video_info response:

• The player_response parameter is a URL-encoded JSON string. Decode it to access the nested streamingData object, which contains current stream URLs.
• Note that these URLs are signed with short-lived tokens (they expire quickly) and YouTube frequently updates the signature obfuscation method. This workaround can break without warning, and it violates YouTube’s Terms of Service.

内容的提问来源于stack exchange，提问作者Dhruv Gohil