gst 测试摄像头命令
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二、不显示图像的
gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=300 ! video/x-raw,format=UYVY,width=1920,height=1080,framerate=30/1 ! nvvidconv ! video/x-raw(memory:NVMM),format=NV12 ! nvv4l2h264enc maxperf-enable=true MeasureEncoderLatency=true ! fpsdisplaysink text-overlay=0 video-sink=fakesink sync=0 -v
gst-launch-1.0 v4l2src device=/dev/video1 num-buffers=300 ! video/x-raw,format=UYVY,width=1920,height=1080,framerate=30/1 ! nvvidconv ! video/x-raw(memory:NVMM),format=NV12 ! nvv4l2h264enc maxperf-enable=true MeasureEncoderLatency=true ! fpsdisplaysink text-overlay=0 video-sink=fakesink sync=0 -v
gst-launch-1.0 v4l2src device=/dev/video2 num-buffers=300 ! video/x-raw,format=UYVY,width=1920,height=1080,framerate=30/1 ! nvvidconv ! video/x-raw(memory:NVMM),format=NV12 ! nvv4l2h264enc maxperf-enable=true MeasureEncoderLatency=true ! fpsdisplaysink text-overlay=0 video-sink=fakesink sync=0 -v
gst-launch-1.0 v4l2src device=/dev/video3 num-buffers=300 ! video/x-raw,format=UYVY,width=1920,height=1080,framerate=30/1 ! nvvidconv ! video/x-raw(memory:NVMM),format=NV12 ! nvv4l2h264enc maxperf-enable=true MeasureEncoderLatency=true ! fpsdisplaysink text-overlay=0 video-sink=fakesink sync=0 -v
gst-launch-1.0 v4l2src device=/dev/video4 num-buffers=300 ! video/x-raw,format=UYVY,width=1920,height=1080,framerate=30/1 ! nvvidconv ! video/x-raw(memory:NVMM),format=NV12 ! nvv4l2h264enc maxperf-enable=true MeasureEncoderLatency=true ! fpsdisplaysink text-overlay=0 video-sink=fakesink sync=0 -v
正常如下：显示
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