We are developing a social website and looking to implement video/audio chat for users (people a user is friends with). Most of the talk from the tech team was to use flash. But I don't want users to install anything. Can video/audio/conferencing be done purely in AJAX? Either develop it from scratch or use open source frameworks if any?
Flash is already installed on practically ever browser out there -- except iPhones, iPads, etc. which will likely never support Flash.
AJAX and HTML and CSS currently have no access to video and audio input hardware, so that's a non-starter. In the future this may change.
For now Flash is (for better or for worse) the best way to go.
No, unfortunately you can only do this with a plugin (ie Flash).
I don't believe you have access to video or audio input devices from just the browser.
来源：https://stackoverflow.com/questions/3041819/non-flash-no-plugin-video-chat