lavf/aviobuf: use av_assert()

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

libavformat/aviobuf.c

@@ -24,6 +24,7 @@
 #include "libavutil/intreadwrite.h"
 #include "libavutil/log.h"
 #include "libavutil/opt.h"
+#include "libavutil/avassert.h"
 #include "avformat.h"
 #include "avio.h"
 #include "avio_internal.h"
@@ -712,7 +713,7 @@ int ffio_set_buf_size(AVIOContext *s, int buf_size)
 
 static int url_resetbuf(AVIOContext *s, int flags)
 {
-    assert(flags == AVIO_FLAG_WRITE || flags == AVIO_FLAG_READ);
+    av_assert1(flags == AVIO_FLAG_WRITE || flags == AVIO_FLAG_READ);
 
     if (flags & AVIO_FLAG_WRITE) {
         s->buf_end = s->buffer + s->buffer_size;