Open Source Media Framework

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{{Infobox software

| name = Open Source Media Framework

| logo = Open Source Media Framework Logo.png

| logo alt = Open Source Media Framework logo and wordmark

| developer = Adobe Systems

| discontinued = deprecated

| latest release version = 2.0

| latest release date = {{Start date and age|2012|03|22}}

| programming language = ActionScript 3.0

| operating system = Cross-platform

| genre = Development Framework

| license = Mozilla Public License

}}

Open Source Media Framework (OSMF) is a deprecated free and open-source development framework for building video experiences on the web and desktop. OSMF is a pure ActionScript 3.0{{En dash}}based framework and is created by Adobe Systems.

According to the OSMF website, the framework is designed for content publishers, developers, and Adobe Flash platform ecosystem partners. It is aimed at anyone who is incorporating video on their website. Furthermore, OSMF provides support for multiple media types including video, audio, images, and SWF files. The program supports plug-ins that enable additional features from third-party services, such as advertising insertion, rendering, tracking, reporting for analytics, and content delivery network (CDN) authentication.{{Cite web |date=2010 |title=About Open Source Media Framework |url=http://osmf.org/about.html |url-status=dead |archive-url=https://web.archive.org/web/20140209040227/http://osmf.org/about.html |archive-date=2014-02-09 |access-date=2023-05-14 |website=Open Source Media Framework }}

OSMF supports RTMP and HTTP streaming, progressive download, sequential / parallel compositions of video with other media, layout inside / outside the video and audio player.