# qtimetamux
Source: [https://docs.qualcomm.com/doc/80-70020-50SC/topic/qtimetamux.html](https://docs.qualcomm.com/doc/80-70020-50SC/topic/qtimetamux.html)
Qtimetamux 插件使用帧匹配技术将基于 ML 字符串的后处理结果（后处理插件输出）或 CV 信息关联或附加到原始帧（如[GstMeta](https://gstreamer.freedesktop.org/documentation/gstreamer/gstmeta.html#GstMeta)）。
该输出会与 qtioverlay 等插件共享以进行渲染，或者向下传递到 ML 推理 pipeline 以进行进一步的推理。
也可以附加 [appsink](https://gstreamer.freedesktop.org/documentation/app/appsink.html?gi-language=c#appsink-page) 插件并在用户定义的应用程序中接收 [GstBuffer](https://gstreamer.freedesktop.org/documentation/gstreamer/gstbuffer.html#GstBuffer) 和 [GstMeta](https://gstreamer.freedesktop.org/documentation/gstreamer/gstmeta.html#GstMeta)。
Figure : 使用 qtimetamux 的 GStreamer pipeline
## 继承链
[GObject](https://docs.gtk.org/gobject/) → [GstObject](https://gstreamer.freedesktop.org/documentation/gstreamer/gstobject.html?gi-language=c) → [GstElement](https://gstreamer.freedesktop.org/documentation/gstreamer/gstelement.html?gi-language=c) → GstMetaMux
下表提供了有关 qtimetamux 的端口模板和元素属性的信息。有关用例信息，请参见 [LiteRT 用例](https://docs.qualcomm.com/doc/80-70020-50SC/topic/tensorflow-lite-use-cases.html)和[菊花链检测与分类](https://docs.qualcomm.com/doc/80-70020-50SC/topic/daisy-chain-detection-and-classification.html)。
## 端口配置
| 端口名称 | 功能 | 功能 | 功能 |
| --- | --- | --- | --- |
| SINK 模板：'sink'
| video/x-raw (ANY) | – | – |
| SINK 模板：'sink'
| video/x-raw | – | – |
| SINK 模板：'data\_%u'
| text/x-raw | format： | utf8 |
| SRC 模板：'src'
| video/x-raw (ANY) | – | – |
| SRC 模板：'src'
| video/x-raw | – | – |
| | | | |
## 元素配置
Table : qtimetamux 元素属性
| 属性 | 说明 |
| --- | --- |
| name | 对象名称 |
| parent | 对象的父级 |
**Parent Topic:** [配置 ML 插件](https://docs.qualcomm.com/doc/80-70020-50SC/topic/inferencing-plugins.html)
Last Published: Jul 23, 2025
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