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    Volcan_WLV 4

    @Volcan_W

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    Latest posts made by Volcan_W

    • Reply: V821如何实现VIPP的分时复用?

      @awwwwa 创建多个VirChn吗?

      posted in V Series
      V
      Volcan_W
    • V821如何实现VIPP的分时复用?

      基于V821芯片,我需要在屏幕上显示摄像头画面的同时也需要保存MP4文件,该如何实现VIPP的分时复用?

      posted in V Series
      V
      Volcan_W
    • Reply: V821 开发板如何设置摄像头分辨率

      @awwwwa这个设置吗?
      e0a0cbd1-3be5-4090-b736-b1587a367fb5-image.png

      posted in V Series
      V
      Volcan_W
    • Reply: V821 开发板如何设置摄像头分辨率

      @indream 如何切换分辨率?

      posted in V Series
      V
      Volcan_W
    • sunxi:VE:[INFO]: 469 enable_cedar_hw_clk_module(): execute set_vcu_en_regmode_to1_to0

      sunxi:VE:[INFO]: 469 enable_cedar_hw_clk_module(): execute set_vcu_en_regmode_to1_to0
      这个是什么报错?我在使用摄像头的时候经常出现该问题。

      posted in V Series
      V
      Volcan_W
    • V821 开发板如何设置摄像头分辨率

      通过cat /sys/kernel/debug/mpp/vi查看当前摄像头分辨率如下,该如何设置摄像头分辨率?
      vi0:
      gc2053_mipi => mipi0 => csi0 => isp0 => vipp0
      input => hoff: 0, voff: 0, w: 1920, h: 1080, fmt: RGGB10
      output => width: 240, height: 320, fmt: NV21
      interface: MIPI, isp_mode: NORMAL, hflip: 0, vflip: 0
      prs_in => x: 1920, y: 1080, hb: 1795, hs: 6266
      bkuf => cnt: 3 size: 118784 rest: 2, work_mode: online
      ispbuf => cnt: 4 size: 3112960/28672/28672/28672, cmp_ratio: 0
      frame => cnt: 1400, lost_cnt: 2, error_cnt: 0
      internal => avg: 44(ms), max: 50(ms), min: 40(ms)
      CSI Bandwidth: 0

      posted in V Series
      V
      Volcan_W
    • 如何移植sample_virvi2vo.c中的函数到自己的程序中正常使用?

      编译SDK的过程中编译sample_virvi2vo.c的时候他调用的头文件和库是在哪里?

      posted in V Series
      V
      Volcan_W
    • Reply: Tina V821 Linux系统使用V4L2打开摄像头

      @indream 1978118a-b6d2-4072-92cb-a53a838c4684-image.png
      这个吗?

      posted in V Series
      V
      Volcan_W
    • Reply: Tina V821 Linux系统使用V4L2打开摄像头

      @indream 使用官方的demo是可以调用的,传入的值超过了注册的最小最大范围是什么意思?

      posted in V Series
      V
      Volcan_W
    • Tina V821 Linux系统使用V4L2打开摄像头

      在使用ioctl设置摄像头格式时,发现ioctl只调用了驱动层v4l2_ioctl,底层硬件驱动的ioctl并未调用,导致设置摄像头格式失败,这个是什么原因导致的,该如何解决?
      08b616dc-d4ea-4797-9bde-5def058842d9-5974fce63bfc3d32db0978bcce4bc0fa.png

      81326dab-44bc-4850-a109-14c8b751ecbc-ff9e7d4388eb8747432c6ed1d4bf5667.png

      edaea3f8-25d5-4176-803d-832d448c3a93-67da9508c5fcd062afef9195c246298c.png

      posted in V Series
      V
      Volcan_W