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    UNSOLVED IMX307采用视频预览模式读取图片有延时

    CS MIPI camera
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    • L
      lyj last edited by

      IMX307使用视频预览模式,间隔10s取一张图(cap.read()一次),图片有极大的延时,该如何解决?是什么原因导致的延时?

      veye_xumm 1 Reply Last reply Reply Quote 0
      • veye_xumm
        veye_xumm @lyj last edited by

        @lyj 请问你使用的主板是什么?

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          lyj @veye_xumm last edited by

          @veye_xumm jetson TX2

          veye_xumm 1 Reply Last reply Reply Quote 0
          • veye_xumm
            veye_xumm @lyj last edited by

            @lyj 图片有极大的延时的意思是什么时刻到什么时刻的延时?

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              lyj @veye_xumm last edited by

              @veye_xumm 就是我取到的图片不是当下的图,是好多分钟前的一张图

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              • veye_xumm
                veye_xumm @lyj last edited by

                @lyj 应该是你的程序没有把V4l2 buffer中的图像取干净,滞留在buffer中了。
                建议改一下程序,触发完成,尝试循环取图几次,把buffer中的图像取干净。这样就不会造成buffer中的滞留问题。

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                  lyj @veye_xumm last edited by

                  @veye_xumm 我用pickone这种,也会有buffer吗?那用不用这个不是没啥差异?就是pickmode设成0还是1都有buffer,没什么本质区别

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                    lyj @veye_xumm last edited by

                    @veye_xumm 这个buffer可以修改吗?我希望buffer的长度是1,不要太多

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                    • veye_xumm
                      veye_xumm @lyj last edited by

                      @lyj 我说的这个buffer不是camera里面的buffer,而是jetson主板上为了接收图像而创建的buffer。 不能设置为1,需要有一定的冗余才好。

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