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请问一下，gst-launch与我们所编写的gstreamer应用程序开发（例如mp3播放）有什么区别吗，gst-launch也可以实现音频播放啊，为什么还要编写复杂的应用程序呢，谢谢
gst-launch is a tool that builds and runs basic GStreamer pipelines.
linux.die.net/.../gst-launch-0.10
谢谢谢谢，您给的资料很有帮助。
