使用下面管道来录制视频
$ gst-launch --eos-on-shutdown –v souphttpsrc location='http://192.168.0.200/i' is-live=true ! multipar***mux ! decodebin2 ! ffmpegcolorspace ! ffenc_mjpeg ! ffmux_mp4 ! filesink location=4
在这种情况下，CPU占有率为40% 左右。
3). 通过TCP串流视频到另一个IP地址
这里配置串流IP摄像头视频到VF61，然后再到另外一台运行Ubuntu Linux主机
Ubuntu IP = 192.168.0.12
在VF61上面运行下面管道
$ gst-launch --eos-on-shutdown –v souphttpsrc location='http://192.168.0.200/i' is-live=true ! multipar***mux ! decodebin2 ! ffmpegcolorspace ! ffenc_mjpeg ! Tcpserversink host=192.168.0.12 port 5000
然后在Ubuntu上面运行下面管道来查看视频流
$ gst-launch tcpclientsrc host=192.168.0.8 port=5000 ! jpegdec ! autovideosink
在这种情况下，VF61 CPU占用率为95% 左右。
总结
本文着重展示了通过GStreamer 元件，管道在Embedded Linux设备上面应用USB或IP摄像头，相关的更多管理使用示例还可以从网络上面找到很多，可以结合本文一起来充分理解相关应用。
本文所做示例下VF61 CPU和MEM占用率比较请见下图，可见NXP/Freescale Vybrid VF61 处理器尽管没有***的硬件视频处理单元也基本上可以胜任基本的摄像头视频应用，结合其非常有竞争力的成本，使其成为性价比非常高的产品。但是如果对视频处理有更高的要求如嵌入式视觉系统，则建议考虑处理能力更强劲并含有***GPU的基于NXP/Freescale i.MX6处理器的产品，如Toradex Colibri/Apalis i.MX6 模块。
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