void tag_processor_id3v2::g_remove_ex(tag_write_callback & p_callback,const service_ptr_t<file> & p_file,t_uint64 & p_size_removed,abort_callback & p_abort)
{
p_file->ensure_seekable();
t_filesize len;
len = p_file->get_size(p_abort);
if (len == filesize_invalid) throw exception_io_no_length();
p_file->seek(0,p_abort);
t_uint64 offset;
g_multiskip(p_file,offset,p_abort);
if (offset>0 && offset<len)
{
len-=offset;
service_ptr_t<file> temp;
if (p_callback.open_temp_file(temp,p_abort)) {
file::g_transfer_object(p_file,temp,len,p_abort);
} else {
if (len > 16*1024*1024) filesystem::g_open_temp(temp,p_abort);
else filesystem::g_open_tempmem(temp,p_abort);
file::g_transfer_object(p_file,temp,len,p_abort);
p_file->seek(0,p_abort);
p_file->set_eof(p_abort);
temp->seek(0,p_abort);
file::g_transfer_object(temp,p_file,len,p_abort);
}
}
p_size_removed = offset;
}
void open(service_ptr_t<file> file, const char *path,
t_input_open_reason reason, abort_callback &abort)
{
m_pfile = file;
input_open_file_helper(m_pfile, path, reason, abort);
m_pfile->ensure_seekable();
m_demuxer = std::make_shared<CAFFile>(m_pfile, abort);
m_decoder = IDecoder::create_decoder(m_demuxer, abort);
}