我正在尝试创建一个简单的 gstreamer1-0 管道，它对 h264 网络摄像头提要进行编码和解码，希望尽可能使用最基本的元素。我已经（理论上）安装了所有标准的、好的、坏的和丑陋的 gstreamer 库。我使用“理论上”这个词是因为我没有 root 权限，我必须请求 IT 下载/安装我可能需要的每个库，这很痛苦。
我尝试了以下管道，但没有奏效：
gst-launch-1.0 v4l2src ! autovideoconvert ! x264enc bitrate=256 ! decodebin ! autovideosink
我得到以下输出：
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Redistribute latency...
Missing element: H.264 decoder
ERROR: from element /GstPipeline:pipeline0/GstDecodeBin:decodebin0: Your GStreamer installation is missing a plug-in.
Additional debug info:
gstdecodebin2.c(3977): gst_decode_bin_expose (): /GstPipeline:pipeline0/GstDecodeBin:decodebin0:
no suitable plugins found
Execution ended after 0:00:01.795803500
Setting pipeline …