Make url_resetbuf() assert on wrong flags passed and make it static on next

version bump.
See thread: [FFmpeg-devel] & vs. &&
Date: Mon, 12 Oct 2009 14:21:06 +0200

Originally committed as revision 20330 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/avio.h

@@ -333,11 +333,13 @@ int url_fdopen(ByteIOContext **s, URLContext *h);
 
 /** @warning must be called before any I/O */
 int url_setbufsize(ByteIOContext *s, int buf_size);
+#if LIBAVFORMAT_VERSION_MAJOR < 53
 /** Reset the buffer for reading or writing.
  * @note Will drop any data currently in the buffer without transmitting it.
  * @param flags URL_RDONLY to set up the buffer for reading, or URL_WRONLY
  *        to set up the buffer for writing. */
 int url_resetbuf(ByteIOContext *s, int flags);
+#endif
 
 /** @note when opened as read/write, the buffers are only used for
     writing */

libavformat/aviobuf.c

@@ -28,6 +28,9 @@
 #define IO_BUFFER_SIZE 32768
 
 static void fill_buffer(ByteIOContext *s);
+#if LIBAVFORMAT_VERSION_MAJOR >= 53
+static int url_resetbuf(ByteIOContext *s, int flags);
+#endif
 
 int init_put_byte(ByteIOContext *s,
                   unsigned char *buffer,
@@ -583,11 +586,19 @@ int url_setbufsize(ByteIOContext *s, int buf_size)
     return 0;
 }
 
+#if LIBAVFORMAT_VERSION_MAJOR < 53
 int url_resetbuf(ByteIOContext *s, int flags)
+#else
+static int url_resetbuf(ByteIOContext *s, int flags)
+#endif
 {
+#if LIBAVFORMAT_VERSION_MAJOR < 53
     URLContext *h = s->opaque;
     if ((flags & URL_RDWR) || (h && h->flags != flags && !h->flags & URL_RDWR))
         return AVERROR(EINVAL);
+#else
+    assert(flags == URL_WRONLY || flags == URL_RDONLY);
+#endif
 
     if (flags & URL_WRONLY) {
         s->buf_end = s->buffer + s->buffer_size;