diff options
Diffstat (limited to 'src/SMFReader.cpp')
| -rw-r--r-- | src/SMFReader.cpp | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/SMFReader.cpp b/src/SMFReader.cpp index 56232cf..a267e48 100644 --- a/src/SMFReader.cpp +++ b/src/SMFReader.cpp @@ -97,6 +97,19 @@ SMFReader::open(const string& filename) if (_fd) { // Read type (bytes 8..9) + fseek(_fd, 0, SEEK_SET); + char mthd[5]; + mthd[4] = '\0'; + fread(mthd, 1, 4, _fd); + if (strcmp(mthd, "MThd")) { + cerr << "File is not an SMF file, aborting." << endl; + fclose(_fd); + _fd = NULL; + return false; + } + + + // Read type (bytes 8..9) fseek(_fd, 8, SEEK_SET); uint16_t type_be = 0; fread(&type_be, 2, 1, _fd); @@ -153,7 +166,7 @@ SMFReader::seek_to_track(unsigned track) if (!strcmp(id, "MTrk")) { ++track_pos; - std::cerr << "Found track " << track_pos << endl; + //std::cerr << "Found track " << track_pos << endl; } else { std::cerr << "Unknown chunk ID " << id << endl; } |