# QBC HDR

Source: [https://docs.qualcomm.com/doc/80-70015-50SC/topic/qbc-hdr.html](https://docs.qualcomm.com/doc/80-70015-50SC/topic/qbc-hdr.html)

Quad Bayer 编码高动态范围 (QBC HDR) 是一种图像传感器技术，可同时采集多个曝光并将它们合并以创建更宽的动态范围。

## QBC HDR 视频/预览

为视频流启用传感器内 HDR：

    gst-pipeline-app -e qtiqmmfsrc name=camsrc video_0::type=preview vhdr=4 !  video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,compression=ubwc ! v4l2h264enc capture-io-mode=5 output-io-mode=5 extra-controls="controls,video_bitrate=6000000,video_bitrate_mode=0;" ! h264parse ! mp4mux ! filesink location=/opt/cam_1080p.mp4 camsrc.image_1 ! "image/jpeg,width=3840,height=2160,framerate=30/1" ! multifilesink location=/opt/frame%d.jpg async=false sync=trueCopy to clipboard

## QBC HDR 快照

为快照启用传感器内 HDR。启用后，摄像头后端会根据场景为快照启用传感器内 HDR：

    gst-pipeline-app -e qtiqmmfsrc name=camsrc video_0::type=preview vhdr=5 !  video/x-raw\(memory:GBM\),format=NV12,width=1920,height=1080,framerate=30/1,compression=ubwc ! v4l2h264enc capture-io-mode=5 output-io-mode=5 extra-controls="controls,video_bitrate=6000000,video_bitrate_mode=0;" ! h264parse ! mp4mux ! filesink location=/opt/cam_1080p.mp4 camsrc.image_1 ! "image/jpeg,width=3840,height=2160,framerate=30/1" ! multifilesink location=/opt/frame%d.jpg async=false sync=trueCopy to clipboard

**Parent Topic:** [摄像头](https://docs.qualcomm.com/doc/80-70015-50SC/topic/camera.html)

Last Published: Nov 11, 2025

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