vdin: The picture received by the screenshot is the previous frame [1/1]

PD#SWPL-15282

Problem:
buf is not updated because of absent receiver

Solution:
force buf recycle after screen cap stopped

Verify:
verified by t962x3_ab301

Change-Id: Idc5c354a6d744b11a892ffb3f015a5928706d438
Signed-off-by: zhiwei.yuan <zhiwei.yuan@amlogic.com>

diff --git a/drivers/amlogic/media/vin/tvin/vdin/vdin_drv.c b/drivers/amlogic/media/vin/tvin/vdin/vdin_drv.c
index 6bfab70..5f2ef5e 100644 (file)
--- a/drivers/amlogic/media/vin/tvin/vdin/vdin_drv.c
+++ b/drivers/amlogic/media/vin/tvin/vdin/vdin_drv.c
@@ -855,6 +855,8 @@ int start_tvin_service(int no, struct vdin_parm_s  *para)
                if ((devp->parm.reserved & PARAM_STATE_SCREENCAP) &&
                        (devp->parm.reserved & PARAM_STATE_HISTGRAM) &&
                        (devp->index == 1)) {
+                       /*always update buf to avoid older data be captured*/
+                       devp->flags |= VDIN_FLAG_FORCE_RECYCLE;
                        mutex_unlock(&devp->fe_lock);
                        return 0;
                } else {