# 4K – 缩小到 1080p — 编码为 AVC MP4

Source: [https://docs.qualcomm.com/doc/80-70014-50Y/topic/4k-downscale-to-1080p-encode-to-avc-mp4-mux.html](https://docs.qualcomm.com/doc/80-70014-50Y/topic/4k-downscale-to-1080p-encode-to-avc-mp4-mux.html)

此 pipeline 采集 4k 分辨率的视频流，将其一份副本发送到编码器和 MP4 多路复用器以存储在文件中。它将另一个副本发送到 qtivtransform，以在编码和多路复用到设备上的 MP4 文件之前降低流 1080p 分辨率。

运行命令以执行 pipeline：
- Qualcomm Computer Vision SDK（fcv）引擎：

        gst-launch-1.0 -e qtiqmmfsrc ! video/x-raw\(memory:GBM\),format=NV12,width=3840,height=2160,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! tee name=t_split t_split. ! queue ! v4l2h264enc capture-io-mode=5 output-io-mode=5 ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/4k_video.mp4 t_split. ! qtivtransform engine=fcv ! video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=5 output-io-mode=5 ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/downscaled_1080p_video.mp4Copy to clipboard
- GLES 引擎：

        gst-launch-1.0 -e qtiqmmfsrc ! video/x-raw\(memory:GBM\),format=NV12,width=3840,height=2160,framerate=30/1,compression=ubwc,interlace-mode=progressive,colorimetry=bt601 ! tee name=t_split t_split. ! queue ! v4l2h264enc capture-io-mode=5 output-io-mode=5 ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/4k_video.mp4 t_split. ! qtivtransform engine=gles ! video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,compression=ubwc,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=5 output-io-mode=5 ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/downscaled_1080p_video.mp4Copy to clipboard

如需停止用例，请按下 CTRL + C，接着使用以下 `scp` 命令从设备中拉取录制的内容，并在主机 PC 上播放内容。

下图显示了 pipeline 执行流程：

![](data:image/png;base64,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)

拉取的 MP4 文件可以在媒体播放器上播放。显示摄像头流。

使用以下命令拉取文件内容：

    scp -r root@[DEVICE IP-ADDR]:/opt/4k_video.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard

    scp -r root@[DEVICE IP-ADDR]:/opt/downscaled_1080p_video.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard

**Parent Topic:** [转换和转码用例](https://docs.qualcomm.com/doc/80-70014-50Y/topic/transform-and-transcode-use-cases.html)

Last Published: Nov 11, 2025

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4K 到 1080p – 同时翻转水平/垂直翻转和缩小](https://docs.qualcomm.com/bundle/publicresource/80-70014-50Y/topics/4k-to-1080p-flip-horizontal-vertical-flip-and-downscale-at-same-time.md) [Next Topic
其他转换和转码用例](https://docs.qualcomm.com/bundle/publicresource/80-70014-50Y/topics/additional-transform-and-transcode-use-cases.md)