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 file::g_transfer_file(const service_ptr_t<file> & p_from,const service_ptr_t<file> & p_to,abort_callback & p_abort) { t_filesize length = p_from->get_size_ex(p_abort); p_from->seek(0,p_abort); p_to->seek(0,p_abort); p_to->set_eof(p_abort); if (length > 0) { g_transfer_object(p_from,p_to,length,p_abort); } }
static void load_id666(service_ptr_t<file> & p_file, LPID666TAG lpTag, abort_callback & p_abort)//must be seeked to correct spot before calling { t_uint8 szBuf[4]; p_file->read_object( &szBuf, 4, p_abort ); if( ! memcmp( szBuf, xid6_signature, 4 ) ) { t_uint32 tag_size; p_file->read_lendian_t( tag_size, p_abort ); t_filesize offset = p_file->get_position( p_abort ); service_ptr_t< reader_limited > m_file = new service_impl_t< reader_limited >; m_file->init( p_file, offset, offset + tag_size, p_abort ); service_ptr_t<file> p_file = m_file.get_ptr(); try { parse_id666( p_file, lpTag, false, p_abort ); } catch ( const exception_io_data & ) { p_file->seek( 0, p_abort ); memset( lpTag, 0, sizeof( *lpTag ) ); parse_id666( p_file, lpTag, true, p_abort ); } } else throw exception_tag_not_found(); }
void tag_processor_id3v2::g_skip_at(const service_ptr_t<file> & p_file,t_filesize p_base, t_filesize & p_size_skipped,abort_callback & p_abort) { unsigned char tmp[10]; p_file->seek ( p_base, p_abort ); if (p_file->read( tmp, sizeof(tmp), p_abort) != sizeof(tmp)) { p_file->seek ( p_base, p_abort ); p_size_skipped = 0; return; } if ( 0 != memcmp ( tmp, "ID3", 3) || ( tmp[5] & 0x0F ) != 0 || ((tmp[6] | tmp[7] | tmp[8] | tmp[9]) & 0x80) != 0 ) { p_file->seek ( p_base, p_abort ); p_size_skipped = 0; return; } int FooterPresent = tmp[5] & 0x10; t_uint32 ret; ret = tmp[6] << 21; ret += tmp[7] << 14; ret += tmp[8] << 7; ret += tmp[9] ; ret += 10; if ( FooterPresent ) ret += 10; try { p_file->seek ( p_base + ret, p_abort ); } catch(exception_io_seek_out_of_range) { p_file->seek( p_base, p_abort ); p_size_skipped = 0; return; } p_size_skipped = ret; }
void write(const service_ptr_t<file> & p_file,abort_callback & p_abort,const char * p_string,bool is_utf8) { p_file->seek(0,p_abort); p_file->set_eof(p_abort); if (is_utf8) { p_file->write_object(utf8_header,sizeof(utf8_header),p_abort); p_file->write_object(p_string,strlen(p_string),p_abort); } else { #ifdef _WIN32 pfc::stringcvt::string_ansi_from_utf8 bah(p_string); p_file->write_object(bah,bah.length(),p_abort); #else throw exception_io_data(); #endif } }
write_xid6( service_ptr_t<file> & p_file, const file_info & p_info, abort_callback & p_abort ) : m_file( p_file ), m_abort( p_abort ) { pfc::stringcvt::string_ansi_from_utf8 converter; t_filesize offset_tag_start; const char * value; t_uint32 int32 = 0; p_file->seek_ex( 0, file::seek_from_eof, p_abort ); p_file->write_object( xid6_signature, 4, p_abort ); p_file->write_object_t( int32, p_abort ); offset_tag_start = p_file->get_position( p_abort ); value = p_info.meta_get( "title", 0 ); if ( value ) { converter.convert( value ); if ( strlen( converter ) > 32 ) write_string( XID_SONG, converter ); } value = p_info.meta_get( "album", 0 ); if ( value ) { converter.convert( value ); if ( strlen( converter ) > 32 ) write_string( XID_GAME, converter ); } value = p_info.meta_get( "artist", 0 ); if ( value ) { converter.convert( value ); if ( strlen( converter ) > 32 ) write_string( XID_ARTIST, converter ); } value = p_info.meta_get( "dumper", 0 ); if ( value ) { converter.convert( value ); if ( strlen( converter ) > 16 ) write_string( XID_DUMPER, converter ); } value = p_info.meta_get( "comment", 0 ); if ( value ) { converter.convert( value ); if ( strlen( converter ) > 32 ) write_string( XID_CMNTS, converter ); } value = p_info.meta_get( "OST", 0 ); if ( value ) { converter.convert( value ); write_string( XID_OST, converter ); } value = p_info.meta_get( "discnumber", 0 ); if ( value ) { char * end; unsigned disc = strtoul( value, &end, 10 ); if ( !*end && disc > 0 && disc <= 9 ) write_data( XID_DISC, disc ); } value = p_info.meta_get( "tracknumber", 0 ); if ( value ) { char * end; unsigned track = strtoul( value, &end, 10 ); if ( track > 0 && track < 100 ) write_data( XID_TRACK, track * 0x100 + *end ); } value = p_info.meta_get( "copyright", 0 ); if ( value ) { char * end; unsigned copyright_year = strtoul( value, &end, 10 ); if ( copyright_year > 0 && copyright_year < 65536 ) write_data( XID_COPY, copyright_year ); while ( *end && *end == ' ' ) end++; if ( *end ) { converter.convert( end ); write_string( XID_PUB, converter ); } } value = p_info.info_get( field_length ); if ( value ) { char * end; unsigned length = strtoul( value, &end, 10 ); if ( !*end && length > 0 && ( length % 1000 || length > 999000 ) ) write_int( XID_INTRO, length * 64 ); } value = p_info.info_get( field_fade ); if ( value ) { char * end; unsigned fade = strtoul( value, &end, 10 ); if ( !*end && fade > 99999 ) write_int( XID_FADE, fade * 64 ); } t_filesize offset = p_file->get_position( p_abort ); offset -= offset_tag_start; if ( offset > ( 1 << 30 ) ) throw exception_io_data(); if ( offset ) { int32 = t_uint32( offset ); p_file->seek( offset_tag_start - 4, p_abort ); p_file->write_lendian_t( int32, p_abort ); } else { p_file->seek( offset_tag_start - 8, p_abort ); p_file->set_eof( p_abort ); } }
static void write_id666( service_ptr_t<file> & p_file, const file_info & p_info, abort_callback & p_abort ) { char buffer[32]; const char * value; pfc::stringcvt::string_ansi_from_utf8 converter; p_file->seek( 0x23, p_abort ); buffer [0] = 26; p_file->write_object( buffer, 1, p_abort ); p_file->seek( offsetof( Spc_Emu::header_t, song ), p_abort ); memset( buffer, 0, sizeof( buffer ) ); value = p_info.meta_get( "title", 0 ); if ( value ) { converter.convert( value ); strncpy( buffer, converter, 32 ); } p_file->write_object( buffer, 32, p_abort ); memset( buffer, 0, sizeof( buffer ) ); value = p_info.meta_get( "album", 0 ); if ( value ) { converter.convert( value ); strncpy( buffer, converter, 32 ); } p_file->write_object( buffer, 32, p_abort ); memset( buffer, 0, 16 ); value = p_info.meta_get( "dumper", 0 ); if ( value ) { converter.convert( value ); strncpy( buffer, converter, 16 ); } p_file->write_object( buffer, 16, p_abort ); memset( buffer, 0, sizeof( buffer ) ); value = p_info.meta_get( "comment", 0 ); if ( value ) { converter.convert( value ); strncpy( buffer, converter, 32 ); } p_file->write_object( buffer, 32, p_abort ); memset( buffer, 0, 11 ); value = p_info.meta_get( "date", 0 ); if ( value ) { converter.convert( value ); strncpy( buffer, converter, 11 ); } p_file->write_object( buffer, 11, p_abort ); memset( buffer, 0, 3 ); value = p_info.info_get( field_length ); if ( value ) { size_t length = strlen( value ); if ( length > 3 ) { length -= 3; strncpy( buffer, value, min( 3, length ) ); } } p_file->write_object( buffer, 3, p_abort ); memset( buffer, 0, 5 ); value = p_info.info_get( field_fade ); if ( value ) strncpy( buffer, value, 5 ); p_file->write_object( buffer, 5, p_abort ); memset( buffer, 0, sizeof( buffer ) ); value = p_info.meta_get( "artist", 0 ); if ( value ) { converter.convert( value ); strncpy( buffer, converter, 32 ); } p_file->write_object( buffer, 32, p_abort ); }