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Two open source alternatives to Flash Player
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======
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In July 2017, Adobe sounded the [death knell][1] for its Flash Media Player, announcing it would end support for the once-ubiquitous online video player in 2020. In truth, however, Flash has been on the decline for the past eight years following a rash of zero-day attacks that damaged its reputation. Its future dimmed after Apple announced in 2010 it would not support the technology, and its demise accelerated in 2016 after Google stopped enabling Flash by default (in favor of HTML5) in the Chrome browser.
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Even so, Adobe is still issuing monthly updates for the software, which has slipped from being used on 28.5% of all websites in 2011 to [only 4.4.%][2] as of August 2018. More evidence of Flash’s decline: Google director of engineering [Parisa Tabriz said][3] the number of Chrome users who access Flash content via the browser has declined from 80% in 2014 to under eight percent in 2018.
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Although few* video creators are publishing in Flash format today, there are still a lot of Flash videos out there that people will want to access for years to come. Given that the official application’s days are numbered, open source software creators have a great opportunity to step in with alternatives to Adobe Flash Media Player. Two of those applications are Lightspark and GNU Gnash. Neither are perfect substitutions, but help from willing contributors could make them viable alternatives.
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### Lightspark
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[Lightspark][4] is a Flash Player alternative for Linux machines. While it’s still in alpha, development has accelerated since Adobe announced it would sunset Flash in 2017. According to its website, Lightspark implements about 60% of the Flash APIs and [works][5] on many leading websites including BBC News, Google Play Music, and Amazon Music.
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Lightspark is written in C++/C and licensed under [LGPLv3][6]. The project lists 41 contributors and is actively soliciting bug reports and other contributions. For more information, check out its [GitHub repository][5].
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### GNU Gnash
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[GNU Gnash][7] is a Flash Player for GNU/Linux operating systems including Ubuntu, Fedora, and Debian. It works as standalone software and as a plugin for the Firefox and Konqueror browsers.
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Gnash’s main drawback is that it doesn’t support the latest versions of Flash files—it supports most Flash SWF v7 features, some v8 and v9 features, and offers no support for v10 files. It’s in beta release, and since it’s licensed under the [GNU GPLv3 or later][8], you can help contribute to modernizing it. Access its [project page][9] for more information.
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### Want to create Flash?
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*Just because most people aren't publishing Flash videos these days, that doesn't mean there will never, ever be a need to create SWF files. If you find yourself in that position, these two open source tools might help:
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* [Motion-Twin ActionScript 2 Compiler][10] (MTASC): A command-line compiler that can generate SWF files without Adobe Animate (the current iteration of Adobe's video-creator software).
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* [Ming][11]: A library written in C that can generate SWF files. It also contains some [utilities][12] you can use to work with Flash files.
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--------------------------------------------------------------------------------
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via: https://opensource.com/alternatives/flash-media-player
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作者：[Opensource.com][a]
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选题：[lujun9972](https://github.com/lujun9972)
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://opensource.com
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[1]: https://theblog.adobe.com/adobe-flash-update/
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[2]: https://w3techs.com/technologies/details/cp-flash/all/all
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[3]: https://www.bleepingcomputer.com/news/security/google-chrome-flash-usage-declines-from-80-percent-in-2014-to-under-8-percent-today/
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[4]: http://lightspark.github.io/
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[5]: https://github.com/lightspark/lightspark/wiki/Site-Support
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[6]: https://github.com/lightspark/lightspark/blob/master/COPYING
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[7]: https://www.gnu.org/software/gnash/
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[8]: http://www.gnu.org/licenses/gpl-3.0.html
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[9]: http://savannah.gnu.org/projects/gnash/
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[10]: http://tech.motion-twin.com/mtasc.html
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[11]: http://www.libming.org/
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[12]: http://www.libming.org/WhatsIncluded
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Flash Player 的两种开源替代方案
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======
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2017 年 7 月，Adobe 为 Flash Media Player 敲响了[丧钟][1]，宣布将在 2020 年终止对曾经无处不在的在线视频播放器的支持。但事实上，在一系列损害了其声誉的零日攻击后，Flash 的份额在过去的 8 年一直在下跌。苹果公司在 2010 年宣布它不会支持这项技术后，其未来趋于黯淡，并且在谷歌停止在 Chrome 浏览器中默认启用 Flash（支持 HTML5）后，它的消亡在 2016 年加速。
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即便如此，Adobe 仍然每月发布该软件的更新，截至 2018 年 8 月，它在网站的使用率从 2011 年的 28.5% 下降到[仅 4.4％] [2]。还有更多证据表明 Flash 的下滑：谷歌工程总监 [Parisa Tabriz 说][3]通过浏览器访问 Flash 内容的 Chrome 用户数量从 2014 年的 80％ 下降到 2018 年的 8％。
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尽管如今很少有视频创作者以 Flash 格式发布，但仍有很多人们希望在未来几年内访问的 Flash 视频。鉴于官方支持的日期已经屈指可数，开源软件创建者有很好的机会介入 Adobe Flash Media Player 的替代品。这其中两个应用是 Lightspark 和 GNU Gnash。它们都不是完美的替代品，但来自贡献者的帮助可以使它们成为可行的替代品。
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### Lightspark
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[Lightspark][4] 是 Linux 上的 Flash Player 替代品。虽然它仍处于 alpha 状态，但自从 Adobe 在 2017 宣布废弃 Adobe 以来，开发速度已经加快。据其网站称，Lightspark 实现了 60% 的 Flash API，可在许多流行网站包括 BBC 新闻、Google Play 音乐和亚马逊音乐上[使用][5]。
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Lightspark 是用 C++/C 编写的，并在 [LGPLv3][6] 下许可。该项目列出了 41 个贡献者，并正在积极征求错误报告和其他贡献。有关更多信息，请查看其[ GitHub 仓库][5]。
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### GNU Gnash
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[GNU Gnash][7] 是一个用于 GNU/Linux 操作系统，包括 Ubuntu、Fedora 和 Debian 的 Flash Player。它作为独立软件和插件可用于 Firefox 和 Konqueror 浏览器中。
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Gnash 的主要缺点是它不支持最新版本的 Flash 文件 - 它支持大多数 Flash SWF v7 功能，一些 v8 和 v9 功能，不支持 v10 文件。它处于测试阶段，由于它在[ GNU GPLv3 或更高版本][8]下许可，因此你可以帮助实现它的现代化。访问其[项目页面][9]获取更多信息。
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### 想要创建Flash吗？
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* 仅因为大多数人都不会发布 Flash 视频，但这并不意味着永远不需要创建 SWF 文件。如果你发现自己需要，这两个开源工具可能会有所帮助：
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* [Motion-Twin ActionScript 2 编译器][10]（MTASC）：一个命令行编译器，它可以在没有 Adobe Animate（Adobe 当前的视频创建软件）的情况下生成 SWF 文件。
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* [Ming][11]：用 C 编写的可以生成 SWF 文件的库。它还包含一些可用于处理 Flash 的[程序][12]。
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--------------------------------------------------------------------------------
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via: https://opensource.com/alternatives/flash-media-player
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作者：[Opensource.com][a]
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选题：[lujun9972](https://github.com/lujun9972)
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://opensource.com
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[1]: https://theblog.adobe.com/adobe-flash-update/
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[2]: https://w3techs.com/technologies/details/cp-flash/all/all
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[3]: https://www.bleepingcomputer.com/news/security/google-chrome-flash-usage-declines-from-80-percent-in-2014-to-under-8-percent-today/
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[4]: http://lightspark.github.io/
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[5]: https://github.com/lightspark/lightspark/wiki/Site-Support
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[6]: https://github.com/lightspark/lightspark/blob/master/COPYING
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[7]: https://www.gnu.org/software/gnash/
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[8]: http://www.gnu.org/licenses/gpl-3.0.html
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[9]: http://savannah.gnu.org/projects/gnash/
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[10]: http://tech.motion-twin.com/mtasc.html
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[11]: http://www.libming.org/
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[12]: http://www.libming.org/WhatsIncluded
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