deinterlace: fix 480i error into pulldown [1/1]

PD#TV-1949

Problem:
480i error into pulldown (by yanling)

Solution:
1. add flm22_comlev3 (by yanling);

Verify:
tl1 txlx

Change-Id: Ib5c168deb1327df0e803831dcf9f13e05faaa915
Signed-off-by: Wenfeng Guo <wenfeng.guo@amlogic.com>
Signed-off-by: Luan Yuan <luan.yuan@amlogic.com>

diff --git a/drivers/amlogic/media/deinterlace/film_mode_fmw/film_fw1.c b/drivers/amlogic/media/deinterlace/film_mode_fmw/film_fw1.c
index 6d77ab4..0cca0a2 100644 (file)
--- a/drivers/amlogic/media/deinterlace/film_mode_fmw/film_fw1.c
+++ b/drivers/amlogic/media/deinterlace/film_mode_fmw/film_fw1.c
@@ -1179,6 +1179,10 @@ int Flm22DetSft(struct sFlmDatSt *pRDat, int *nDif02,
        int flm22_comlev1 = pPar->flm22_comlev1;
        int flm22_comnum = pPar->flm22_comnum;
 
+       int dif_flag;
+       int flm22_min;
+       int flm22_th;
+
        int cFlg = pFlg[HISDETNUM - 1];
        int rFlg[4] = { 2, 3, 4, 1 };
 
@@ -1578,7 +1582,16 @@ int Flm22DetSft(struct sFlmDatSt *pRDat, int *nDif02,
 
                nFlm22Lvl -= nT1;
        }
-       if (flm22_flag) {
+       /* ---------------------- */
+       /*DI:PQ patch fix 480i error into pulldown22(by yanling)*/
+       flm22_min = nDif01[HISDIFNUM-1] > nDif01[HISDIFNUM-2]
+               ? nDif01[HISDIFNUM-2] : nDif01[HISDIFNUM-1];
+       flm22_th = flm22_min/2;
+       dif_flag = abs(nDif01[HISDIFNUM-1]-nDif01[HISDIFNUM-2])
+               > flm22_th ? 1:0;
+       dif_flag = nDif01[HISDIFNUM-1] > (1<<16) ? dif_flag : 0;
+       if (flm22_flag && dif_flag) {
+       /* ---------------------- */
                if (pFlg[HISDETNUM-1] == 3
                                || pFlg[HISDETNUM-1] == 1) {
                        if (comsum > flm22_comnum) {
@@ -1601,8 +1614,9 @@ int Flm22DetSft(struct sFlmDatSt *pRDat, int *nDif02,
                if (nFlgCk21 < flm22_chk21_sml)
                        nFlm22Lvl = nFlm22Lvl + flm22_comlev1 - nFlgCk21;
                if (prt_flg) {
-                       pr_info("nFlm22Lvl=%d, nFlgCk20=%d, nFlgCk21=%d\n",
-                               nFlm22Lvl, nFlgCk20, nFlgCk21);
+                       pr_info("nFlm22Lvl=%d, nFlgCk20=%d, nFlgCk21=%d,flm22_min=%d,flm22_th=%d\n",
+                               nFlm22Lvl, nFlgCk20, nFlgCk21,
+                               flm22_min, flm22_th);
                }
        }
        /* for sony-mp3 */