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fix #26: correctly calculate cover frame size 

Signed-off-by: 鲁树人 <lu.shuren@um-react.app>
This commit is contained in:
鲁树人 2024-09-13 00:00:35 +01:00
parent 36e6801f29
commit 2b52a367f2
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1 changed files with 5 additions and 2 deletions
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7
src/ncmcrypt.cpp
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@ -391,12 +391,14 @@ NeteaseCrypt::NeteaseCrypt(std::string const &path)
mMetaData = new NeteaseMusicMetadata(cJSON_Parse(modifyDecryptData.c_str()));
}
// skip crc32 & unuse charset
if (!mFile.seekg(9, mFile.cur))
// skip crc32 & image version
if (!mFile.seekg(5, mFile.cur))
{
throw std::invalid_argument("can't seek file");
}
uint32_t cover_frame_len{0};
read(reinterpret_cast<char *>(&cover_frame_len), 4);
read(reinterpret_cast<char *>(&n), sizeof(n));
if (n > 0)
@ -410,4 +412,5 @@ NeteaseCrypt::NeteaseCrypt(std::string const &path)
{
std::cout << "[Warn] " << path << " missing album can't fix album image!" << std::endl;
}
mFile.seekg(cover_frame_len - n, mFile.cur);
}