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{TTA file}
unit fmt_TTA;
{$include compilers.inc}
interface
uses wat_api;
function ReadTTA(var Info:tSongInfo):boolean; cdecl;
implementation
uses windows,common,io,tags,srv_format;
const
TTA1_SIGN = $31415454;
type
tTTAHeader = packed record
id :dword;
format :word;
channels :word;
bitspersample:word;
samplerate :dword;
datalength :dword;
crc32 :dword;
end;
function ReadTTA(var Info:tSongInfo):boolean; cdecl;
var
f:THANDLE;
hdr:tTTAHeader;
begin
result:=false;
f:=Reset(Info.mfile);
if f=THANDLE(INVALID_HANDLE_VALUE) then
exit;
ReadID3v2(f,Info);
BlockRead(f,hdr,SizeOf(tTTAHeader));
if hdr.id<>TTA1_SIGN then
exit;
Info.channels:=hdr.channels;
Info.khz :=hdr.samplerate;
Info.kbps :=hdr.bitspersample div 1000; //!!
if hdr.samplerate<>0 then
Info.total:=hdr.datalength div hdr.samplerate;
ReadID3v1(f,Info);
CloseHandle(f);
result:=true;
end;
var
LocalFormatLink:twFormat;
procedure InitLink;
begin
LocalFormatLink.Next:=FormatLink;
LocalFormatLink.This.proc :=@ReadTTA;
LocalFormatLink.This.ext :='TTA';
LocalFormatLink.This.flags:=0;
FormatLink:=@LocalFormatLink;
end;
initialization
InitLink;
end.
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