高速视频采集报警告

Lenuxon

最近在rv1126平台移植了一款高速120fps摄像头ov9281，用的双MIPI方案，在高帧率采集视频数据的时候会报以下警告：

1. [   42.524069] rkisp0: tx stream:4 lose frame:2811, isp state:0x201 frame:2807
   
2. [   42.538468] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
   
3. [   42.541029] rkisp0: tx stream:4 lose frame:2813, isp state:0x204 frame:2810
   
4. [   42.555058] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
   
5. [   42.571625] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
   
6. [   42.574411] rkisp0: tx stream:4 lose frame:2817, isp state:0x204 frame:2815
   
7. [   42.588238] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
   
8. [   42.604964] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
   
9. [   42.607881] rkisp0: tx stream:4 lose frame:2821, isp state:0x204 frame:2819
   
10. [   42.629665] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
    
11. [   42.631839] rkisp0: tx stream:4 lose frame:2824, isp state:0x204 frame:2821
    
12. [   42.637950] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
    
13. [   42.656763] rkisp0: tx stream:4 lose frame:2827, isp state:0x204 frame:2824
    
14. [   42.662812] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
    
15. [   42.671114] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
    
16. [   42.690264] rkisp0: tx stream:4 lose frame:2831, isp state:0x204 frame:2829
    
17. [   42.696018] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
    
18. [   42.704283] rkcif_mipi_lvds: frame drop to dummy buf, mipi/lvds stream[0]
    

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如果在60fps以下都不会报以上警告，帧率越高以上警告越频繁。有大哥了解这个警告吗

板蓝根

没有 debug 过这个 sensor，这个看着像是性能问题

799959745

这个警报是因为你驱动没有配置好相应 sensor 的 fps。导致应用层不能及时获取到摄像头的数据。