Whether i tried http://gdata.youtube.com/feeds/api/users/t_vuWv0C8mbjQAe-5RKKrQ/uploads?v=2&start-index=1&max-results=50&prettyprint=True&safeSearch=none, http://gdata.youtube.com/feeds/api/users/t_vuWv0C8mbjQAe-5RKKrQ/uploads?v=2&start-index=1&max-results=50&prettyprint=True&safeSearch=moderate, http://gdata.youtube.com/feeds/api/users/t_vuWv0C8mbjQAe-5RKKrQ/uploads?v=2&start-index=1&max-results=50&prettyprint=True&safeSearch=strict
The result is filtered and only return 1 video.
However, if i remove safeSearch parameter , http://gdata.youtube.com/feeds/api/users/t_vuWv0C8mbjQAe-5RKKrQ/uploads?v=2&start-index=1&max-results=50&prettyprint=True, i can get many videos.
I didn't think it's related to ip restriction, the feed didn't return yt$state and something like ""This video is not available in your region.". I can play all videos on the browser with the same ip. it is not related to restriction parameter, http://gdata.youtube.com/feeds/api/users/t_vuWv0C8mbjQAe-5RKKrQ/uploads?v=2&start-index=1&max-results=50&prettyprint=True&restriction=127.0.0.1&safeSearch=none still return 1 video.
My question is, what restriction exactly cause safeSearch filter my result, if not ip restriction, what else? 18+ video?

