Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / libavcodec / h264.c
index 2960bae..3a83b4b 100644 (file)
@@ -143,28 +143,30 @@ static void h264_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
     ff_h264_hl_decode_mb(h);
 }
 
-static void draw_horiz_band(AVCodecContext *avctx, Picture *cur,
-                            Picture *last, int y, int h, int picture_structure,
-                            int first_field, int low_delay)
+void ff_h264_draw_horiz_band(H264Context *h, int y, int height)
 {
+    AVCodecContext *avctx = h->avctx;
+    Picture *cur  = &h->cur_pic;
+    Picture *last = h->ref_list[0][0].f.data[0] ? &h->ref_list[0][0] : NULL;
     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
     int vshift = desc->log2_chroma_h;
-    const int field_pic = picture_structure != PICT_FRAME;
-    if(field_pic){
-        h <<= 1;
+    const int field_pic = h->picture_structure != PICT_FRAME;
+    if (field_pic) {
+        height <<= 1;
         y <<= 1;
     }
 
-    h = FFMIN(h, avctx->height - y);
+    height = FFMIN(height, avctx->height - y);
 
-    if(field_pic && first_field && !(avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return;
+    if (field_pic && h->first_field && !(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD))
+        return;
 
     if (avctx->draw_horiz_band) {
         AVFrame *src;
         int offset[AV_NUM_DATA_POINTERS];
         int i;
 
-        if(cur->f.pict_type == AV_PICTURE_TYPE_B || low_delay ||
+        if (cur->f.pict_type == AV_PICTURE_TYPE_B || h->low_delay ||
            (avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
             src = &cur->f;
         else if (last)
@@ -172,27 +174,19 @@ static void draw_horiz_band(AVCodecContext *avctx, Picture *cur,
         else
             return;
 
-        offset[0]= y * src->linesize[0];
-        offset[1]=
-        offset[2]= (y >> vshift) * src->linesize[1];
+        offset[0] = y * src->linesize[0];
+        offset[1] =
+        offset[2] = (y >> vshift) * src->linesize[1];
         for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
             offset[i] = 0;
 
         emms_c();
 
         avctx->draw_horiz_band(avctx, src, offset,
-                               y, picture_structure, h);
+                               y, h->picture_structure, height);
     }
 }
 
-void ff_h264_draw_horiz_band(H264Context *h, int y, int height)
-{
-    draw_horiz_band(h->avctx, &h->cur_pic,
-                    h->ref_list[0][0].f.data[0] ? &h->ref_list[0][0] : NULL,
-                    y, height, h->picture_structure, h->first_field,
-                    h->low_delay);
-}
-
 static void free_frame_buffer(H264Context *h, Picture *pic)
 {
     pic->period_since_free = 0;