Resizer: fix display when output width changed, comment black color

Signed-off-by: Jean-Paul Saman <jean-paul.saman@m2x.nl>

modules/codec/davinci/viddec.c

@@ -961,25 +961,18 @@ static picture_t *DecodeVideoBlockInner( decoder_t *p_dec, block_t **pp_block, i
     {
         Resize( p_dec, VLC_FALSE ); /* convert to YUYV */
 
-        /* we write 2 pixels of 2 bytes at a time (packed 4:2:2) */
-        uint32_t black;
-        switch( p_dec->fmt_out.video.i_chroma ) /* video input */
-        {
-        case VLC_FOURCC('U','Y','V','Y'):
-            black = 0x88888888;
-            break;
-        default:
-            black = 0;
-        }
+        uint32_t black = 0x88888888; /* for vout YUYV */
 
         /* fb */
         /* output top & bottom black */
         int i_line_len = p_sys->var_info.xres * BPP/8; /* in bytes */
         int i_nlines = p_sys->var_info.yres; /* in lines */
 
+        /* bytes per input line */
+        int i_vidw = p_dec->fmt_out.video.i_width * (BPP/8);
+
         /* borders */
-        int i_sideborder = /* in bytes */
-            (i_line_len - p_dec->fmt_out.video.i_width * (BPP/8) )/ 2;
+        int i_sideborder = (i_line_len - i_vidw) / 2; /* in bytes */
         int i_edgeborder = /* in lines */
             (i_nlines - p_dec->fmt_out.video.i_height) / 2;
 
@@ -998,13 +991,12 @@ static picture_t *DecodeVideoBlockInner( decoder_t *p_dec, block_t **pp_block, i
             {
                 assert(p_sys->out.numBufs == 1);
 
-                /* bytes per input line */
-                int i_vidw = p_dec->fmt_out.video.i_width * (BPP/8);
 
                 /* draw a line */
+                int i_vidw_pad = (i_vidw + 15) & ~15;
                 memcpy( &p_sys->p_fb_map[i*i_line_len + i_sideborder],
-                        &p_sys->p_yuyv[(i-i_edgeborder)*i_vidw],
-                        i_vidw
+                    &p_sys->p_yuyv[(i-i_edgeborder)*i_vidw_pad],
+                    i_vidw_pad
                     );
 
                 /* and black borders */