ad: pause -> ad ops -> resume -> ad fail [1/1]

PD#SWPL-136643

Problem:
ad pid not checked in pause mode

Solution:
fixed the missing of ad pid check

Verify:
PB

Change-Id: I5e8828fef5b329e14afa2f72409f35799a9d6943
Signed-off-by: Zhiqiang Han <zhiqiang.han@amlogic.com>
diff --git a/src/dvr_playback.c b/src/dvr_playback.c
index 4fac6e3..e732fd0 100644
--- a/src/dvr_playback.c
+++ b/src/dvr_playback.c
@@ -2390,6 +2390,31 @@
                 //stop audio
                 a_cmd = DVR_PLAYBACK_CMD_A_STOP;
             }
+
+            /*process the ad, if main audio exists, but no action*/
+            if (a_cmd == DVR_PLAYBACK_CMD_NONE && VALID_PID(p_pids->audio.pid)) {
+
+                if (VALID_PID(segment->pids.ad.pid)
+                  && VALID_PID(p_pids->ad.pid)
+                  && segment->pids.ad.pid != p_pids->ad.pid) {
+                  //changed
+                  a_cmd = DVR_PLAYBACK_CMD_A_RESTART;
+                }
+                if (VALID_PID(segment->pids.ad.pid)
+                  && !VALID_PID(p_pids->ad.pid)
+                  && segment->pids.ad.pid != p_pids->ad.pid) {
+                  //to stop
+                  a_cmd = DVR_PLAYBACK_CMD_A_RESTART;
+                }
+                if (!VALID_PID(segment->pids.ad.pid)
+                  && VALID_PID(p_pids->ad.pid)
+                  && segment->pids.ad.pid != p_pids->ad.pid) {
+                  //to start
+                  a_cmd = DVR_PLAYBACK_CMD_A_RESTART;
+                }
+
+            }
+
             if (a_cmd == DVR_PLAYBACK_CMD_NONE
               && v_cmd == DVR_PLAYBACK_CMD_NONE) {
               //do nothing