bmpenc: use av_assert()

Signed-off-by: Paul B Mahol <onemda@gmail.com>

libavcodec/bmpenc.c

@@ -21,10 +21,10 @@
  */
 
 #include "libavutil/imgutils.h"
+#include "libavutil/avassert.h"
 #include "avcodec.h"
 #include "bytestream.h"
 #include "bmp.h"
-#include <assert.h>
 #include "internal.h"
 
 static const uint32_t monoblack_pal[] = { 0x000000, 0xFFFFFF };
@@ -98,7 +98,7 @@ static int bmp_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     case PIX_FMT_RGB4_BYTE:
     case PIX_FMT_BGR4_BYTE:
     case PIX_FMT_GRAY8:
-        assert(bit_count == 8);
+        av_assert1(bit_count == 8);
         ff_set_systematic_pal2(palette256, avctx->pix_fmt);
         pal = palette256;
         break;