dvdec: switch to av_assert

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/dvdec.c

@@ -35,6 +35,7 @@
  * DV decoder
  */
 
+#include "libavutil/avassert.h"
 #include "libavutil/pixdesc.h"
 #include "avcodec.h"
 #include "dsputil.h"
@@ -147,8 +148,8 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
     const int log2_blocksize = 3-s->avctx->lowres;
     int is_field_mode[5];
 
-    assert((((int)mb_bit_buffer) & 7) == 0);
-    assert((((int)vs_bit_buffer) & 7) == 0);
+    av_assert1((((int)mb_bit_buffer) & 7) == 0);
+    av_assert1((((int)vs_bit_buffer) & 7) == 0);
 
     memset(sblock, 0, 5*DV_MAX_BPM*sizeof(*sblock));