From 1cf12c2492ac98b1e0ecd2374f18e491c980f4e1 Mon Sep 17 00:00:00 2001
From: reimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Fri, 29 Jan 2010 19:13:07 +0000
Subject: Support more qscale types in most post-processing filters.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30454 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libmpcodecs/vf.h      | 15 +++++++++++++++
 libmpcodecs/vf_fspp.c |  2 +-
 libmpcodecs/vf_pp7.c  |  2 +-
 libmpcodecs/vf_spp.c  |  2 +-
 libmpcodecs/vf_uspp.c |  2 +-
 5 files changed, 19 insertions(+), 4 deletions(-)

(limited to 'libmpcodecs')

diff --git a/libmpcodecs/vf.h b/libmpcodecs/vf.h
index 67c2272bb2..e5dad9e174 100644
--- a/libmpcodecs/vf.h
+++ b/libmpcodecs/vf.h
@@ -129,4 +129,19 @@ int vf_config_wrapper(struct vf_instance_s* vf,
 		      int width, int height, int d_width, int d_height,
 		      unsigned int flags, unsigned int outfmt);
 
+static inline int norm_qscale(int qscale, int type)
+{
+    switch (type) {
+    case 0: // MPEG-1
+        return qscale;
+    case 1: // MPEG-2
+        return qscale >> 1;
+    case 2: // H264
+        return qscale >> 2;
+    case 3: // VP56
+        return (63 - qscale + 2) >> 2;
+    }
+    return qscale;
+}
+
 #endif /* MPLAYER_VF_H */
diff --git a/libmpcodecs/vf_fspp.c b/libmpcodecs/vf_fspp.c
index a813396058..952dced086 100644
--- a/libmpcodecs/vf_fspp.c
+++ b/libmpcodecs/vf_fspp.c
@@ -454,7 +454,7 @@ static void filter(struct vf_priv_s *p, uint8_t *dst, uint8_t *src,
 		    t=x+x0-2; //correct t=x+x0-2-(y&1), but its the same
 		    if (t<0) t=0;//t always < width-2
 		    t=qp_store[qy+(t>>qps)];
-		    if(p->mpeg2) t>>=1; //copy p->mpeg2,prev_q to locals?
+		    t=norm_qscale(t, p->mpeg2);
 		    if (t!=p->prev_q) p->prev_q=t, mul_thrmat_s(p, t);
 		    column_fidct_s((int16_t*)(&p->threshold_mtx[0]), block+x*8, block3+x*8, 8); //yes, this is a HOTSPOT
 		}
diff --git a/libmpcodecs/vf_pp7.c b/libmpcodecs/vf_pp7.c
index 42c8512250..78d2ba640d 100644
--- a/libmpcodecs/vf_pp7.c
+++ b/libmpcodecs/vf_pp7.c
@@ -321,7 +321,7 @@ static void filter(struct vf_priv_s *p, uint8_t *dst, uint8_t *src, int dst_stri
                 qp= p->qp;
             else{
                 qp= qp_store[ (XMIN(x, width-1)>>qps) + (XMIN(y, height-1)>>qps) * qp_stride];
-                if(p->mpeg2) qp>>=1;
+                qp=norm_qscale(qp, p->mpeg2);
             }
             for(; x<end; x++){
                 const int index= x + y*stride + (8-3)*(1+stride) + 8; //FIXME silly offset
diff --git a/libmpcodecs/vf_spp.c b/libmpcodecs/vf_spp.c
index 476d2103c7..0fcee9d665 100644
--- a/libmpcodecs/vf_spp.c
+++ b/libmpcodecs/vf_spp.c
@@ -406,7 +406,7 @@ static void filter(struct vf_priv_s *p, uint8_t *dst, uint8_t *src, int dst_stri
 				qp= p->qp;
 			else{
 				qp= qp_store[ (XMIN(x, width-1)>>qps) + (XMIN(y, height-1)>>qps) * qp_stride];
-				if(p->mpeg2) qp = FFMAX(1, qp>>1);
+				qp = FFMAX(1, norm_qscale(qp, p->mpeg2));
 			}
 			for(i=0; i<count; i++){
 				const int x1= x + offset[i+count-1][0];
diff --git a/libmpcodecs/vf_uspp.c b/libmpcodecs/vf_uspp.c
index 286d9d1bdd..19bdc67123 100644
--- a/libmpcodecs/vf_uspp.c
+++ b/libmpcodecs/vf_uspp.c
@@ -168,7 +168,7 @@ static void filter(struct vf_priv_s *p, uint8_t *dst[3], uint8_t *src[3], int ds
     if(p->qp)
         p->frame->quality= p->qp * FF_QP2LAMBDA;
     else
-        p->frame->quality= (qp_store[0] * FF_QP2LAMBDA)>>p->mpeg2;
+        p->frame->quality= norm_qscale(qp_store[0], p->mpeg2) * FF_QP2LAMBDA;
 //    init per MB qscale stuff FIXME
 
     for(i=0; i<count; i++){
-- 
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