10l: export ff_bprint_to_extradata between libs using avpriv_ prefix.

Both libavformat and libavcodec requires this function.

libavcodec/dvdsubenc.c

@@ -409,7 +409,7 @@ static int dvdsub_init(AVCodecContext *avctx)
         av_bprintf(&extradata, " %06"PRIx32"%c",
                    dvdc->global_palette[i] & 0xFFFFFF, i < 15 ? ',' : '\n');
 
-    ret = ff_bprint_to_extradata(avctx, &extradata);
+    ret = avpriv_bprint_to_extradata(avctx, &extradata);
     if (ret < 0)
         return ret;
 

libavcodec/internal.h

@@ -204,6 +204,6 @@ int ff_codec_close_recursive(AVCodecContext *avctx);
 /**
  * Finalize buf into extradata and set its size appropriately.
  */
-int ff_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf);
+int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf);
 
 #endif /* AVCODEC_INTERNAL_H */

libavcodec/utils.c

@@ -2686,7 +2686,7 @@ int avcodec_is_open(AVCodecContext *s)
     return !!s->internal;
 }
 
-int ff_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
+int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
 {
     int ret;
     char *str;

libavformat/assdec.c

@@ -133,7 +133,7 @@ static int ass_read_header(AVFormatContext *s)
 
     av_bprint_finalize(&line, NULL);
 
-    res = ff_bprint_to_extradata(st->codec, &header);
+    res = avpriv_bprint_to_extradata(st->codec, &header);
     if (res < 0)
         goto end;
 

libavformat/jacosubdec.c

@@ -229,7 +229,7 @@ static int jacosub_read_header(AVFormatContext *s)
     }
 
     /* general/essential directives in the extradata */
-    ret = ff_bprint_to_extradata(st->codec, &header);
+    ret = avpriv_bprint_to_extradata(st->codec, &header);
     if (ret < 0)
         return ret;
 

libavformat/samidec.c

@@ -92,7 +92,7 @@ static int sami_read_header(AVFormatContext *s)
         av_bprint_clear(&buf);
     }
 
-    res = ff_bprint_to_extradata(st->codec, &hdr_buf);
+    res = avpriv_bprint_to_extradata(st->codec, &hdr_buf);
     if (res < 0)
         goto end;
 

libavformat/subviewerdec.c

@@ -100,7 +100,7 @@ static int subviewer_read_header(AVFormatContext *s)
                 av_bprintf(&header, "%s", line);
                 if (!strncmp(line, "[END INFORMATION]", 17) || !strncmp(line, "[SUBTITLE]", 10)) {
                     /* end of header */
-                    res = ff_bprint_to_extradata(st->codec, &header);
+                    res = avpriv_bprint_to_extradata(st->codec, &header);
                     if (res < 0)
                         goto end;
                 } else if (strncmp(line, "[INFORMATION]", 13)) {