Hello, How to set global alpha to V4L2_BUF_TYPE_CAPTURE ?
Samsung SoC S5PC210 has Camera interface and Video post processor named FIMC which can set the alpha value to V4L2_BUF_TYPE_CAPTURE. For example during color space conversion from YUV422 to ARGB8888, FIMC can set the alpha value to V4L2_BUF_TYPE_CAPTURE. I tried to find an available command to set it but I couldn't found it. But there is fmt.win.global_alpha for Video Overlay Interface. So in my opinion VIDIOC_S_FMT is also suitable for V4L2_BUF_TYPE_CAPTURE*. How about using fmt.pix.priv in struct v4l2_format and fmt.pix_mp.reserved[0] in struct v4l2_format ? I welcome your opinion. Best regards, -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
