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    3588修改行对齐

    Scheduled Pinned Locked Moved VEYE MIPI camera
    12 Posts 2 Posters 3.2k Views 1 Watching
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    • veye_xummV Offline
      veye_xumm @lin
      last edited by

      @lin 这个我们没有试过。正常来说bytes per line应该是跟随相机的roi自适应的吧?

      Questions will be answered as soon as possible, please be patient.
      如果你使用中文,请直接用中文提问。
      May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

      L 1 Reply Last reply Reply Quote 0
      • L Offline
        lin @veye_xumm
        last edited by

        @veye_xumm 为什么用python预览图像就没有黑边,自己采集保存出来图像就有黑边了,我的图像分辨率为1920*1200,v4l2-ctl -all查看bytes per line 参数是2048,有办法去掉黑边吗?

        veye_xummV 1 Reply Last reply Reply Quote 0
        • veye_xummV Offline
          veye_xumm @lin
          last edited by

          @lin
          试试下面这个脚本

          export WIDTH=1920
          
          export HEIGHT=1200
          
          export FPS=60
          
          v4l2-ctl -d /dev/v4l-subdev2 --set-ctrl roi_x=0
          
          v4l2-ctl -d /dev/v4l-subdev2 --set-ctrl roi_y=0
          
          media-ctl -d /dev/media0 --set-v4l2 '"m00_b_mvcam 7-003b":0[fmt:Y8_1X8/'"$WIDTH"'x'"$HEIGHT"'@1/'"$FPS"']'
          
          v4l2-ctl -d /dev/video0 --set-fmt-video=width=$WIDTH,height=$HEIGHT,pixelformat=GREY --stream-mmap --stream-count=1 --stream-to=y8-${WIDTH}x${HEIGHT}.raw
          

          Questions will be answered as soon as possible, please be patient.
          如果你使用中文,请直接用中文提问。
          May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

          L 1 Reply Last reply Reply Quote 0
          • L Offline
            lin @veye_xumm
            last edited by

            @veye_xumm还是有黑边呀?

            veye_xummV 1 Reply Last reply Reply Quote 0
            • veye_xummV Offline
              veye_xumm @lin
              last edited by

              @lin 文件大小是多少?

              Questions will be answered as soon as possible, please be patient.
              如果你使用中文,请直接用中文提问。
              May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

              L 1 Reply Last reply Reply Quote 0
              • L Offline
                lin @veye_xumm
                last edited by

                @veye_xumm 2.34M

                veye_xummV 1 Reply Last reply Reply Quote 0
                • veye_xummV Offline
                  veye_xumm @lin
                  last edited by

                  @lin 你可以看看具体的大小,精确到字节。 1920*1200=2304000bytes

                  Questions will be answered as soon as possible, please be patient.
                  如果你使用中文,请直接用中文提问。
                  May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                  L 1 Reply Last reply Reply Quote 0
                  • L Offline
                    lin @veye_xumm
                    last edited by

                    @veye_xumm 2457600字节,我算过1200行,每行是2048

                    veye_xummV 2 Replies Last reply Reply Quote 0
                    • veye_xummV Offline
                      veye_xumm @lin
                      last edited by

                      @lin 确实有这个现象。回头我研究一下是怎么回事。

                      Questions will be answered as soon as possible, please be patient.
                      如果你使用中文,请直接用中文提问。
                      May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                      1 Reply Last reply Reply Quote 0
                      • veye_xummV Offline
                        veye_xumm @lin
                        last edited by

                        @lin 我理解这个Bytes per Line是rkcif驱动里面,自动根据camera的分辨率计算的,没有留v4l-ctl进行配置的接口。如果要改动,需要修改一下rockchip的rkcif源码。rk这么做的目的应该是出于整个系统一些硬件模块操作的方便性。
                        暂时建议你保留这个状况,你的程序处理的时候忽略掉多余的部分。

                        Questions will be answered as soon as possible, please be patient.
                        如果你使用中文,请直接用中文提问。
                        May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                        L 1 Reply Last reply Reply Quote 0
                        • L Offline
                          lin @veye_xumm
                          last edited by

                          @veye_xumm 好的,谢谢

                          1 Reply Last reply Reply Quote 0

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