avsync: tsync: fix blackscrean issue when replayed [1/2]

PD#TV-2802

Problem:
The image is stuck or blackscrean for a few seconds
when the DTV stream is replayed.

Solution:
when audio pts and video pts discontinue, then
adjust the pcr source clock.

Verify:
X301

Change-Id: Id0a74e2d4106a30b426bfa7a4faa70451db9b79e
Signed-off-by: Xiaoming Sui <xiaoming.sui@amlogic.com>

diff --git a/drivers/amlogic/media/frame_sync/tsync.c b/drivers/amlogic/media/frame_sync/tsync.c
index 2b41eb1..27fb17d 100644 (file)
--- a/drivers/amlogic/media/frame_sync/tsync.c
+++ b/drivers/amlogic/media/frame_sync/tsync.c
@@ -829,6 +829,29 @@ void tsync_avevent_locked(enum avevent_e event, u32 param)
                        t = timestamp_apts_get();
                else
                        t = timestamp_pcrscr_get();
+               if (tsdemux_pcrscr_valid_cb && tsdemux_pcrscr_valid_cb() == 1) {
+                       if (abs(param - oldpts) > tsync_av_threshold_min) {
+                               vpts_discontinue = 1;
+                               if (apts_discontinue == 1) {
+                                       apts_discontinue = 0;
+                                       vpts_discontinue = 0;
+                                       pr_info("set apts->pcrsrc,pcrsrc %x to %x,diff %d\n",
+                                               timestamp_pcrscr_get(),
+                                               timestamp_apts_get(),
+                                               timestamp_apts_get()
+                                               - timestamp_pcrscr_get());
+                                       timestamp_pcrscr_set(param);
+                               } else {
+                                       pr_info("set para->pcrsrc,pcrsrc %x to %x,diff %d\n",
+                                               timestamp_pcrscr_get(), param,
+                                               param-timestamp_pcrscr_get());
+                                       timestamp_pcrscr_set(
+                                               timestamp_vpts_get());
+                               }
+                       }
+                       timestamp_vpts_set(param);
+                       break;
+               }
                /*
                 *amlog_level(LOG_LEVEL_ATTENTION,
                 *"VIDEO_TSTAMP_DISCONTINUITY, 0x%x, 0x%x\n", t, param);
@@ -860,6 +883,29 @@ void tsync_avevent_locked(enum avevent_e event, u32 param)
                amlog_level(LOG_LEVEL_ATTENTION,
                                "audio discontinue, reset apts, 0x%x\n",
                                param);
+               if (tsdemux_pcrscr_valid_cb && tsdemux_pcrscr_valid_cb() == 1) {
+                       if (abs(param - oldpts) > tsync_av_threshold_min) {
+                               apts_discontinue = 1;
+                               if (vpts_discontinue == 1) {
+                                       pr_info("set para->pcrsrc,pcrsrc from %x to %x,diff %d\n",
+                                               timestamp_pcrscr_get(), param,
+                                               param-timestamp_pcrscr_get());
+                                       apts_discontinue = 0;
+                                       vpts_discontinue = 0;
+                                       timestamp_pcrscr_set(param);
+                               } else {
+                                       pr_info("set vpts->pcrsrc,pcrsrc from %x to %x,diff %d\n",
+                                               timestamp_pcrscr_get(),
+                                               timestamp_vpts_get(),
+                                               timestamp_vpts_get()
+                                               - timestamp_pcrscr_get());
+                                       timestamp_pcrscr_set(
+                                               timestamp_vpts_get());
+                               }
+                       }
+                       timestamp_apts_set(param);
+                       break;
+               }
                timestamp_apts_set(param);
                if (!tsync_enable) {
                        timestamp_apts_set(param);
@@ -1132,6 +1178,15 @@ void tsync_set_sync_vdiscont(int syncdiscont)
 }
 EXPORT_SYMBOL(tsync_set_sync_vdiscont);
 
+int tsync_set_video_runmode(void)
+{
+       if (tsdemux_pcrscr_valid_cb && tsdemux_pcrscr_valid_cb() == 1) {
+               if (vpts_discontinue == 1 || apts_discontinue == 1)
+                       return 1;
+       }
+       return 0;
+}
+EXPORT_SYMBOL(tsync_set_video_runmode);
 void tsync_set_automute_on(int automute_on)
 {
        tsync_automute_on = automute_on;
@@ -1155,6 +1210,16 @@ int tsync_set_apts(unsigned int pts)
                t = timestamp_vpts_get();
        else
                t = timestamp_pcrscr_get();
+       if (tsdemux_pcrscr_valid_cb && tsdemux_pcrscr_valid_cb() == 1) {
+               pr_info("tsync_set_apts %x,diff %d\n",
+                       pts, (int)timestamp_pcrscr_get() - pts);
+               timestamp_apts_set(pts);
+               if ((int)(timestamp_apts_get() - t) > 30 * TIME_UNIT90K / 1000
+                               || (int)(t - timestamp_apts_get()) >
+                               80 * TIME_UNIT90K / 1000)
+                       timestamp_pcrscr_set(pts);
+               return 0;
+       }
        /* do not switch tsync mode until first video toggled. */
        if ((abs(oldpts - pts) > tsync_av_threshold_min) &&
                (timestamp_firstvpts_get() > 0)) {      /* is discontinue */