./fftv -s 640x480 -y -b 2000 -r 30 -G 640x480 -vcodec mpeg4 a.avi 
-- /home/dhliu/.fftv.socket
set_xkey_cmd_state: Normal
load_disp_opt: /home/dhliu/.fftv.states/tv-disp-option
xvisual:82f34c0  24
create_tv_win
---- create_tv 105 120   640 480  frame:e4586e
create_button_widget ....
try device /dev/video
fftv will use dev /dev/video
36000/32768/32112/22000/0 depth:32 pal:5
min 48:32   max:768 480   flag:eb
>>> VID_TYPE_CLIPPING
/home/dhliu/.fftv.freqtab found, will use it
chanlistN:94
.. tv channel_last_session 60
frames:4
init_v4l_mbuf 1228800  depth:32  pal:5
VisibilityNotify: 0 U
set_xkey_cmd_state: Record
disp_rec_status
record_status:1
opt_frame_size: 640x480
desired_palette:15
--- start recording ac:1---
VisibilityNotify: 1 PO
......... do_exit_fftv ...
......... do_exit_fftv b ...
program will exit
