* avoid create unnecessary video decoder Signed-off-by: 21pages <pages21@163.com> * controlled side uses the most frequent selected codec Signed-off-by: 21pages <pages21@163.com> * fix black screen when control old version's second screen For versions that do not support multiple displays, the display parameter is always 0, need set type of current display Signed-off-by: 21pages <pages21@163.com> --------- Signed-off-by: 21pages <pages21@163.com>