# 实时拍照

Source: [https://docs.qualcomm.com/doc/80-70018-50SC/topic/gst-snapshot-stream-example.html](https://docs.qualcomm.com/doc/80-70018-50SC/topic/gst-snapshot-stream-example.html)

**gst-snapshot-stream-example** 应用程序可以创建两个流：预览流和拍照流。预览流用于显示，而拍照流则进行拍照并将其以 JPEG 格式保存到文件中。

Note: 此示例应用程序在 QCS8275 和 QCS9075 上不支持。

对于拍照流，您可以定义拍照的数量。

该图显示了一个 pipeline，其可以从同一视频源同时进行实时预览和拍照。

关于更多详细信息，请参阅 [Pipeline 流](https://docs.qualcomm.com/doc/80-70018-50SC/topic/gst-snapshot-stream-example.html#gst-snapshot-stream-example__section_lny_sly_nbc)。

Figure : gst-snapshot-stream-example pipeline
            
            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)

## 前提条件

- 如果还没有安装 eSDK，请[下载并安装 eSDK](https://docs.qualcomm.com/bundle/publicresource/topics/80-70018-51/install-sdk.html#download-and-install-esdk-)。
- 要访问您的主机设备，请启用 SSH。有关说明，请参阅[使用 SSH 登录](https://docs.qualcomm.com/bundle/publicresource/topics/80-70018-254/how_to.html#use-ssh)。
Note: 若已启用 SSH，可跳过此步骤。
- 从 Linux 主机推送文件。

        scp <filename> root@<IP address of target device>:/etc/Copy to clipboard
- 使用 HDMI 端口将显示器连接到设备。有关说明，请参见[设置 HDMI 显示器](https://docs.qualcomm.com/bundle/publicresource/topics/80-70018-18/samples.html)。
- 启用显示屏：

        export XDG_RUNTIME_DIR=/dev/socket/weston && export WAYLAND_DISPLAY=wayland-1Copy to clipboard
- 连接扬声器以启用音频。有关说明，请参见[设置音频硬件](https://docs.qualcomm.com/bundle/publicresource/topics/80-70018-16/enable-audio.html)。

如果启用摄像头或显示器时遇到问题，请参阅[摄像头故障排除](https://docs.qualcomm.com/bundle/publicresource/topics/80-70018-17/troubleshooting.html)和[显示器故障排除](https://docs.qualcomm.com/bundle/publicresource/topics/80-70018-18/debug.html)。

## 运行应用程序

- 运行用例。为应用程序指定参数（如摄像头宽度、高度和存储 JPEG 文件的最大拍照计数）。

        gst-snapshot-stream-example -W 1280 -H 720 -w 3840 -h 2160 -c 5Copy to clipboard
- 要显示可用的帮助选项，请在 SSH shell 中运行以下命令：

        gst-snapshot-stream-example --helpCopy to clipboard
- 要停止用例，请按 CTRL + C。

## 预期输出

应用程序生成输出以在显示器上预览，并将 JPEG 文件存储到设备上的相应位置。

用例停止后，拍照输出文件保存于路径中 `/opt/`。

## Pipeline 流

该表列出了实时拍照 pipeline 中使用的插件：

| 插件 | 说明 |
| --- | --- |
| [qtiqmmfsrc](https://docs.qualcomm.com/doc/80-70018-50SC/topic/qtiqmmfsrc.html) | 采集视频流并将其送到 capsfilter 中。 |
| Capsfilter | 将源分支为两个单独的 pipeline。 <br>在一个 pipeline 中，强制执行对原始视频数据的约束，然后将视频数据发送到 [Waylandsink](https://docs.qualcomm.com/doc/80-70018-50SC/topic/waylandsink.html) 以进行实时预览。 |
| Capsfilter | <ol class="ol" id="gst-snapshot-stream-example__ol_imm_wmy_nbc"><br>                                    <li class="li">在另一个 pipeline 中，使用 multi filesink 将帧写入多个文件。</li><br><br>                                    <li class="li">拍照或视频流的帧将保存到磁盘。</li><br><br>                                </ol> |
|  |  |

**Parent Topic:** [运行摄像头示例应用程序](https://docs.qualcomm.com/doc/80-70018-50SC/topic/camera-sample-applications.html)

Last Published: Nov 12, 2025

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