Move filter_luma_intra into dsputil for later addition of asm.

Originally committed as revision 16228 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 59 insertions, 0 deletions

diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index b3b54d9d6f..6cd7131c57 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -2987,6 +2987,63 @@ static void h264_h_loop_filter_luma_c(uint8_t *pix, int stride, int alpha, int b
     h264_loop_filter_luma_c(pix, 1, stride, alpha, beta, tc0);
 }
 
+static inline void h264_loop_filter_luma_intra_c(uint8_t *pix, int xstride, int ystride, int alpha, int beta)
+{
+    int d;
+    for( d = 0; d < 16; d++ ) {
+        const int p2 = pix[-3*xstride];
+        const int p1 = pix[-2*xstride];
+        const int p0 = pix[-1*xstride];
+
+        const int q0 = pix[ 0*xstride];
+        const int q1 = pix[ 1*xstride];
+        const int q2 = pix[ 2*xstride];
+
+        if( FFABS( p0 - q0 ) < alpha &&
+            FFABS( p1 - p0 ) < beta &&
+            FFABS( q1 - q0 ) < beta ) {
+
+            if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
+                if( FFABS( p2 - p0 ) < beta)
+                {
+                    const int p3 = pix[-4*xstride];
+                    /* p0', p1', p2' */
+                    pix[-1*xstride] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
+                    pix[-2*xstride] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
+                    pix[-3*xstride] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
+                } else {
+                    /* p0' */
+                    pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
+                }
+                if( FFABS( q2 - q0 ) < beta)
+                {
+                    const int q3 = pix[3*xstride];
+                    /* q0', q1', q2' */
+                    pix[0*xstride] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
+                    pix[1*xstride] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
+                    pix[2*xstride] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
+                } else {
+                    /* q0' */
+                    pix[0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
+                }
+            }else{
+                /* p0', q0' */
+                pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
+                pix[ 0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
+            }
+        }
+        pix += ystride;
+    }
+}
+static void h264_v_loop_filter_luma_intra_c(uint8_t *pix, int stride, int alpha, int beta)
+{
+    h264_loop_filter_luma_intra_c(pix, stride, 1, alpha, beta);
+}
+static void h264_h_loop_filter_luma_intra_c(uint8_t *pix, int stride, int alpha, int beta)
+{
+    h264_loop_filter_luma_intra_c(pix, 1, stride, alpha, beta);
+}
+
 static inline void h264_loop_filter_chroma_c(uint8_t *pix, int xstride, int ystride, int alpha, int beta, int8_t *tc0)
 {
     int i, d;
@@ -4500,6 +4557,8 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
 
     c->h264_v_loop_filter_luma= h264_v_loop_filter_luma_c;
     c->h264_h_loop_filter_luma= h264_h_loop_filter_luma_c;
+    c->h264_v_loop_filter_luma_intra= h264_v_loop_filter_luma_intra_c;
+    c->h264_h_loop_filter_luma_intra= h264_h_loop_filter_luma_intra_c;
     c->h264_v_loop_filter_chroma= h264_v_loop_filter_chroma_c;
     c->h264_h_loop_filter_chroma= h264_h_loop_filter_chroma_c;
     c->h264_v_loop_filter_chroma_intra= h264_v_loop_filter_chroma_intra_c;