BFX-AT100:/ # cat /sys/class/video/video_state
zoom_start_x_lines:0.zoom_end_x_lines:3839.
zoom_start_y_lines:0.zoom_end_y_lines:2159.
frame parameters: pic_in_height 2160.
frame parameters: VPP_line_in_length_ 3840.
vscale_skip_count 0.
hscale_skip_count 0.
supscl_path 4.
supsc0_enable 0.
supsc1_enable 0.
supsc0_hori_ratio 0.
supsc1_hori_ratio 0.
supsc0_vert_ratio 0.
supsc1_vert_ratio 0.
spsc0_h_in 2160.
spsc1_h_in 2160.
spsc0_w_in 3840.
spsc1_w_in 3840.
video_input_w 3840.
video_input_h 2160.
clk_in_pps 666666656.
vpp_2pic_mode 0.
vpp_3d_scale 0.
vpp_3d_mode 0.
hscale phase step 0x1000000.
vscale phase step 0x1000000.
pps pre hsc enable 0.
pps pre vsc enable 0.
hscale filter coef 0.
vscale filter coef 0.
vpp_vert_chroma_filter_en 0.
post_blend_vd_h_start 0x0.
post_blend_vd_h_end 0xeff.
post_blend_vd_v_start 0x0.
post_blend_vd_v_end 0x86f.
VPP_hd_start_lines_ 0x0.
VPP_hd_end_lines_ 0xeff.
VPP_vd_start_lines_ 0x0.
VPP_vd_end_lines_ 0x86f.
VPP_hsc_startp 0x0.
VPP_hsc_endp 0xeff.
VPP_vsc_startp 0x0.
VPP_vsc_endp 0x86f.