lavf: move ff_get_v from avio.h to avio_internal.h

And rename it to ffio_read_varlen.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

libavformat/avio.h

@@ -568,8 +568,6 @@ unsigned int avio_rb24(AVIOContext *s);
 unsigned int avio_rb32(AVIOContext *s);
 uint64_t     avio_rb64(AVIOContext *s);
 
-uint64_t ff_get_v(AVIOContext *bc);
-
 static inline int url_is_streamed(AVIOContext *s)
 {
     return s->is_streamed;

libavformat/avio_internal.h

@@ -61,4 +61,6 @@ static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s)
  */
 int ffio_rewind_with_probe_data(AVIOContext *s, unsigned char *buf, int buf_size);
 
+uint64_t ffio_read_varlen(AVIOContext *bc);
+
 #endif // AVFORMAT_AVIO_INTERNAL_H

libavformat/aviobuf.c

@@ -753,7 +753,7 @@ uint64_t avio_rb64(AVIOContext *s)
     return val;
 }
 
-uint64_t ff_get_v(AVIOContext *bc){
+uint64_t ffio_read_varlen(AVIOContext *bc){
     uint64_t val = 0;
     int tmp;
 

libavformat/mpc8.c

@@ -22,6 +22,7 @@
 #include "libavcodec/get_bits.h"
 #include "libavcodec/unary.h"
 #include "avformat.h"
+#include "avio_internal.h"
 
 /// Two-byte MPC tag
 #define MKMPCTAG(a, b) (a | (b << 8))
@@ -122,7 +123,7 @@ static void mpc8_get_chunk_header(AVIOContext *pb, int *tag, int64_t *size)
     int64_t pos;
     pos = avio_tell(pb);
     *tag = avio_rl16(pb);
-    *size = ff_get_v(pb);
+    *size = ffio_read_varlen(pb);
     *size -= avio_tell(pb) - pos;
 }
 
@@ -177,7 +178,7 @@ static void mpc8_handle_chunk(AVFormatContext *s, int tag, int64_t chunk_pos, in
     switch(tag){
     case TAG_SEEKTBLOFF:
         pos = avio_tell(pb) + size;
-        off = ff_get_v(pb);
+        off = ffio_read_varlen(pb);
         mpc8_parse_seektable(s, chunk_pos + off);
         avio_seek(pb, pos, SEEK_SET);
         break;
@@ -218,8 +219,8 @@ static int mpc8_read_header(AVFormatContext *s, AVFormatParameters *ap)
         av_log(s, AV_LOG_ERROR, "Unknown stream version %d\n", c->ver);
         return -1;
     }
-    c->samples = ff_get_v(pb);
-    ff_get_v(pb); //silence samples at the beginning
+    c->samples = ffio_read_varlen(pb);
+    ffio_read_varlen(pb); //silence samples at the beginning
 
     st = av_new_stream(s, 0);
     if (!st)