Read a defined size block and skip a set size bytes in binary file
조회 수: 5 (최근 30일)
이전 댓글 표시
I am trying to read a defined size block (A) and skip 8 bytes repeatedly close to the end of a binary file. Also want to skip a set size of bytes (end_skip) at end of file.
Have tried in a several way, but it does not seem to work out correctly.
Any suggestions?
댓글 수: 0
채택된 답변
Walter Roberson
2018년 3월 21일
precision = '*uint8';
block_count = A;
skip_size_in_bytes = 8;
data = fread(fid, [1 block_count], precision, skip_size_in_bytes);
"Also want to skip a set size of bytes (end_skip) at end of file."
I do not understand that part? When you reach end of file, there are no bytes available to skip.
댓글 수: 2
Walter Roberson
2018년 3월 21일
Don't worry about it. fread() will stop when it gets to the end of file, returning the data that it was able to read. The file position for the purposes of ftell() will be left at the end of file, not at skip_size_in_bytes past the end of file.
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Low-Level File I/O에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!