avio: make init_checksum() internal.

libavformat/avio.h

@@ -451,6 +451,10 @@ attribute_deprecated int url_ferror(AVIOContext *s);
 
 attribute_deprecated int udp_set_remote_url(URLContext *h, const char *uri);
 attribute_deprecated int udp_get_local_port(URLContext *h);
+
+attribute_deprecated void init_checksum(AVIOContext *s,
+                   unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len),
+                   unsigned long checksum);
 #endif
 
 AVIOContext *avio_alloc_context(
@@ -674,9 +678,6 @@ int url_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
 unsigned long ff_crc04C11DB7_update(unsigned long checksum, const uint8_t *buf,
                                     unsigned int len);
 unsigned long get_checksum(AVIOContext *s);
-void init_checksum(AVIOContext *s,
-                   unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len),
-                   unsigned long checksum);
 
 #if FF_API_UDP_GET_FILE
 int udp_get_file_handle(URLContext *h);

libavformat/avio_internal.h

@@ -74,5 +74,8 @@ int64_t ffio_read_seek (AVIOContext *h,    int stream_index,
 int ff_udp_set_remote_url(URLContext *h, const char *uri);
 int ff_udp_get_local_port(URLContext *h);
 
+void ffio_init_checksum(AVIOContext *s,
+                        unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len),
+                        unsigned long checksum);
 
 #endif // AVFORMAT_AVIO_INTERNAL_H

libavformat/aviobuf.c

@@ -406,6 +406,12 @@ int64_t av_url_read_fseek(AVIOContext *s, int stream_index,
 {
     return ffio_read_seek(s, stream_index, timestamp, flags);
 }
+void init_checksum(AVIOContext *s,
+                   unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len),
+                   unsigned long checksum)
+{
+    ffio_init_checksum(s, update_checksum, checksum);
+}
 #endif
 
 int avio_put_str(AVIOContext *s, const char *str)
@@ -555,7 +561,7 @@ unsigned long get_checksum(AVIOContext *s)
     return s->checksum;
 }
 
-void init_checksum(AVIOContext *s,
+void ffio_init_checksum(AVIOContext *s,
                    unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len),
                    unsigned long checksum)
 {

libavformat/nutdec.c

@@ -104,14 +104,14 @@ static int get_packetheader(NUTContext *nut, AVIOContext *bc, int calculate_chec
     startcode= av_be2ne64(startcode);
     startcode= ff_crc04C11DB7_update(0, (uint8_t*)&startcode, 8);
 
-    init_checksum(bc, ff_crc04C11DB7_update, startcode);
+    ffio_init_checksum(bc, ff_crc04C11DB7_update, startcode);
     size= ffio_read_varlen(bc);
     if(size > 4096)
         avio_rb32(bc);
     if(get_checksum(bc) && size > 4096)
         return -1;
 
-    init_checksum(bc, calculate_checksum ? ff_crc04C11DB7_update : NULL, 0);
+    ffio_init_checksum(bc, calculate_checksum ? ff_crc04C11DB7_update : NULL, 0);
 
     return size;
 }

libavformat/nutenc.c

@@ -24,6 +24,7 @@
 #include "libavcodec/mpegaudiodata.h"
 #include "nut.h"
 #include "internal.h"
+#include "avio_internal.h"
 
 static int find_expected_header(AVCodecContext *c, int size, int key_frame, uint8_t out[64]){
     int sample_rate= c->sample_rate;
@@ -284,14 +285,14 @@ static void put_packet(NUTContext *nut, AVIOContext *bc, AVIOContext *dyn_bc, in
     int forw_ptr= dyn_size + 4*calculate_checksum;
 
     if(forw_ptr > 4096)
-        init_checksum(bc, ff_crc04C11DB7_update, 0);
+        ffio_init_checksum(bc, ff_crc04C11DB7_update, 0);
     avio_wb64(bc, startcode);
     ff_put_v(bc, forw_ptr);
     if(forw_ptr > 4096)
         avio_wl32(bc, get_checksum(bc));
 
     if(calculate_checksum)
-        init_checksum(bc, ff_crc04C11DB7_update, 0);
+        ffio_init_checksum(bc, ff_crc04C11DB7_update, 0);
     avio_write(bc, dyn_buf, dyn_size);
     if(calculate_checksum)
         avio_wl32(bc, get_checksum(bc));
@@ -806,7 +807,7 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt){
     needed_flags= get_needed_flags(nut, nus, fc, pkt);
     header_idx= fc->header_idx;
 
-    init_checksum(bc, ff_crc04C11DB7_update, 0);
+    ffio_init_checksum(bc, ff_crc04C11DB7_update, 0);
     avio_w8(bc, frame_code);
     if(flags & FLAG_CODED){
         ff_put_v(bc, (flags^needed_flags) & ~(FLAG_CODED));

libavformat/oggenc.c

@@ -85,7 +85,7 @@ static int ogg_write_page(AVFormatContext *s, OGGPage *page, int extra_flags)
     ret = url_open_dyn_buf(&pb);
     if (ret < 0)
         return ret;
-    init_checksum(pb, ff_crc04C11DB7_update, 0);
+    ffio_init_checksum(pb, ff_crc04C11DB7_update, 0);
     ffio_wfourcc(pb, "OggS");
     avio_w8(pb, 0);
     avio_w8(pb, page->flags | extra_flags);