add byte offset to printout

diff --git a/src/metaflac/main.c b/src/metaflac/main.c
index 41fccdd..cd52504 100644 (file)
--- a/src/metaflac/main.c
+++ b/src/metaflac/main.c
@@ -129,13 +129,14 @@ bool list(FILE *f, bool verbose)
 {
        static byte buf[65536], *b;
        FLAC__StreamMetaData metadata;
-       unsigned blocknum = 0, i;
+       unsigned blocknum = 0, byte_offset = 0, i;
 
        /* read the stream sync code */
        if(fread(buf, 1, 4, f) < 4 || memcmp(buf, sync_string_, 4)) {
                fprintf(stderr, "ERROR: not a FLAC file (no '%s' header)\n", sync_string_);
                return false;
        }
+       byte_offset += 4;
 
        /* read the metadata blocks */
        do {
@@ -149,7 +150,8 @@ bool list(FILE *f, bool verbose)
                metadata.length = unpack_uint32(buf+1, 3);
 
                /* print header */
-               printf("METADATA block #%u:\n", blocknum);      
+               printf("METADATA block #%u\n", blocknum);
+               printf("byte offset: %u\n", byte_offset);
                printf("type: %u (%s)\n", (unsigned)metadata.type, metadata.type<=FLAC__METADATA_TYPE_APPLICATION? metadata_type_string_[metadata.type] : "UNKNOWN");
                printf("is last: %s\n", metadata.is_last? "true":"false");
                printf("length: %u\n", metadata.length);
@@ -231,6 +233,7 @@ bool list(FILE *f, bool verbose)
                        printf("\n");
 
                blocknum++;
+               byte_offset += (4 + metadata.length);
        } while (!metadata.is_last);
 
        return true;