davinci resizer : Handle resolution change in the middle of a stream

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

modules/codec/davinci/viddec.c

@@ -77,7 +77,8 @@ struct decoder_sys_t
 
     /* resizer */
     int i_fd_resizer;
-    vlc_bool_t b_resizer_init;
+    unsigned int i_height;
+    unsigned int i_width;
 #endif
 
 };
@@ -428,7 +429,7 @@ int OpenVideoDecoder( vlc_object_t *p_this )
         goto error;
     }
 
-    p_sys->b_resizer_init = VLC_FALSE;
+    p_sys->i_height = p_sys->i_width = 0;
 #endif
 
     /* Set callbacks */
@@ -692,12 +693,14 @@ static picture_t *DecodeVideoBlockInner( decoder_t *p_dec, block_t **pp_block, i
     }
 
 #else
-    if( !p_sys->b_resizer_init )
+    /* Sets resizer parameters when video starts or when resolution changes */
+    if( p_sys->i_width != p_dec->fmt_out.video.i_width ||
+        p_sys->i_height != p_dec->fmt_out.video.i_height )
     {
         rsz_params_t rsz_params;
         memset( &rsz_params, 0, sizeof( rsz_params ) );
-        rsz_params.in_hsize = p_dec->fmt_out.video.i_width;
-        rsz_params.in_vsize = p_dec->fmt_out.video.i_height;
+        rsz_params.in_hsize = p_sys->i_width = p_dec->fmt_out.video.i_width;
+        rsz_params.in_vsize = p_sys->i_height = p_dec->fmt_out.video.i_height;
         rsz_params.in_pitch =
             (p_dec->fmt_out.video.i_width * BPP / 8 + 31) & ~31;
         rsz_params.inptyp = RSZ_INTYPE_YCBCR422_16BIT;
@@ -756,8 +759,6 @@ static picture_t *DecodeVideoBlockInner( decoder_t *p_dec, block_t **pp_block, i
 
             goto error;
         }
-
-        p_sys->b_resizer_init = VLC_TRUE;
     }
 
     rsz_resize_t rsz;