rename av_crc04C11DB7_update to ff_crc04C11DB7_update and move it to aviobuf.c so it can be reused by other (de)muxers

Originally committed as revision 10873 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 5 insertions, 0 deletions

diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 6370f57be6..c186aa2ea3 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -20,6 +20,7 @@
  */
 #include "avformat.h"
 #include "avio.h"
+#include "crc.h"
 #include <stdarg.h>
 
 #define IO_BUFFER_SIZE 32768
@@ -286,6 +287,10 @@ static void fill_buffer(ByteIOContext *s)
     }
 }
 
+unsigned long ff_crc04C11DB7_update(unsigned long checksum, const uint8_t *buf, unsigned int len){
+    return av_crc(av_crc04C11DB7, checksum, buf, len);
+}
+
 unsigned long get_checksum(ByteIOContext *s){
     s->checksum= s->update_checksum(s->checksum, s->checksum_ptr, s->buf_ptr - s->checksum_ptr);
     s->update_checksum= NULL;