Difference between revisions of "Xavier/Video Capture and Display/Software Support/GStreamer"
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{{Xavier/Head|previous=Video Capture and Display/Software Support|next=Video Capture and Display/Software Support/Libargus|keywords=video,capture,display,video capture,video display,video capture subsystem,software,gstreamer}} | {{Xavier/Head|previous=Video Capture and Display/Software Support|next=Video Capture and Display/Software Support/Libargus|keywords=video,capture,display,video capture,video display,video capture subsystem,software,gstreamer}} | ||
</noinclude> | </noinclude> | ||
| − | GStreamer is a framework for creating streaming media applications. The fundamental design comes from the video pipeline at Oregon Graduate Institute, as well as some ideas from DirectShow. | + | GStreamer is a framework for creating streaming media applications. The fundamental design comes from the video pipeline at the Oregon Graduate Institute, as well as some ideas from DirectShow. |
| − | == | + | ==GStreamer Capture== |
| − | + | GStreamer provides different commands for capture images were two is nvarguscamerasrc and v4l2src. | |
===nvarguscamerasrc=== | ===nvarguscamerasrc=== | ||
| − | nvarguscamera src is used when the camera generates images of the | + | nvarguscamera src is used when the camera generates images of the Bayer format because it uses the ISP to change the images to a visible format. |
[[Image:ISP.png|thumb|center|455px|ISP.png]] | [[Image:ISP.png|thumb|center|455px|ISP.png]] | ||
<div style="text-align: center;">'''Figure 1'''. ISP bayer to yuv</div> | <div style="text-align: center;">'''Figure 1'''. ISP bayer to yuv</div> | ||
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==Gstreamer Display== | ==Gstreamer Display== | ||
| − | Gstreamer provides different commands for display images | + | Gstreamer provides different commands for display images where two is nvoverlaysink and xvimagesink. |
===nvoverlaysink=== | ===nvoverlaysink=== | ||
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===xvimagesink=== | ===xvimagesink=== | ||
| − | xvimagesink is used when you need to use normal memory, this command | + | xvimagesink is used when you need to use normal memory, this command opens a screen with the output |
==Pipeline Examples== | ==Pipeline Examples== | ||
| − | For a complete summary of the samples go to | + | For a complete summary of the samples go to https://developer.ridgerun.com/wiki/index.php?title=Xavier/GStreamer_Pipelines |
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{{Xavier/Foot|Video Capture and Display/Software Support|Video Capture and Display/Software Support/Libargus}} | {{Xavier/Foot|Video Capture and Display/Software Support|Video Capture and Display/Software Support/Libargus}} | ||
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Revision as of 13:39, 1 December 2020
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GStreamer is a framework for creating streaming media applications. The fundamental design comes from the video pipeline at the Oregon Graduate Institute, as well as some ideas from DirectShow.
Contents
GStreamer Capture
GStreamer provides different commands for capture images were two is nvarguscamerasrc and v4l2src.
nvarguscamerasrc
nvarguscamera src is used when the camera generates images of the Bayer format because it uses the ISP to change the images to a visible format.
v4l2src
v4l2src captures the images in the format provided by the camera, is used when the camera uses visible formats.
Gstreamer Display
Gstreamer provides different commands for display images where two is nvoverlaysink and xvimagesink.
nvoverlaysink
nvoverlaysink is used when you need to use NVMM memory but also could use normal memory, this command writes directly into the screen buffer.
xvimagesink
xvimagesink is used when you need to use normal memory, this command opens a screen with the output
Pipeline Examples
For a complete summary of the samples go to https://developer.ridgerun.com/wiki/index.php?title=Xavier/GStreamer_Pipelines
