avio: make url_setbufsize internal.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

libavformat/avio.h

@@ -429,6 +429,7 @@ attribute_deprecated int64_t url_ftell(AVIOContext *s);
 attribute_deprecated int64_t url_fsize(AVIOContext *s);
 #define URL_EOF (-1)
 attribute_deprecated int url_fgetc(AVIOContext *s);
+attribute_deprecated int url_setbufsize(AVIOContext *s, int buf_size);
 /**
  * @}
  */
@@ -586,8 +587,6 @@ static inline int url_is_streamed(AVIOContext *s)
  */
 int url_fdopen(AVIOContext **s, URLContext *h);
 
-/** @warning must be called before any I/O */
-int url_setbufsize(AVIOContext *s, int buf_size);
 #if FF_API_URL_RESETBUF
 /** Reset the buffer for reading or writing.
  * @note Will drop any data currently in the buffer without transmitting it.

libavformat/avio_internal.h

@@ -63,4 +63,7 @@ int ffio_rewind_with_probe_data(AVIOContext *s, unsigned char *buf, int buf_size
 
 uint64_t ffio_read_varlen(AVIOContext *bc);
 
+/** @warning must be called before any I/O */
+int ffio_set_buf_size(AVIOContext *s, int buf_size);
+
 #endif // AVFORMAT_AVIO_INTERNAL_H

libavformat/aviobuf.c

@@ -377,6 +377,10 @@ int64_t url_fsize(AVIOContext *s)
 {
     return avio_size(s);
 }
+int url_setbufsize(AVIOContext *s, int buf_size)
+{
+    return ffio_set_buf_size(s, buf_size);
+}
 #endif
 
 int avio_put_str(AVIOContext *s, const char *str)
@@ -490,7 +494,7 @@ static void fill_buffer(AVIOContext *s)
 
     /* make buffer smaller in case it ended up large after probing */
     if (s->buffer_size > max_buffer_size) {
-        url_setbufsize(s, max_buffer_size);
+        ffio_set_buf_size(s, max_buffer_size);
 
         s->checksum_ptr = dst = s->buffer;
         len = s->buffer_size;
@@ -801,7 +805,7 @@ int url_fdopen(AVIOContext **s, URLContext *h)
     return 0;
 }
 
-int url_setbufsize(AVIOContext *s, int buf_size)
+int ffio_set_buf_size(AVIOContext *s, int buf_size)
 {
     uint8_t *buffer;
     buffer = av_malloc(buf_size);

libavformat/utils.c

@@ -621,7 +621,7 @@ int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
             goto fail;
         }
         if (buf_size > 0) {
-            url_setbufsize(pb, buf_size);
+            ffio_set_buf_size(pb, buf_size);
         }
         if (!fmt && (err = av_probe_input_buffer(pb, &fmt, filename, logctx, 0, logctx ? (*ic_ptr)->probesize : 0)) < 0) {
             goto fail;