61 lines
1.6 KiB
Haxe
61 lines
1.6 KiB
Haxe
|
package kha.audio2.ogg.vorbis.data;
|
||
|
|
import haxe.io.Bytes;
|
||
|
|
import haxe.io.Input;
|
||
|
|
import kha.audio2.ogg.vorbis.data.ReaderError.ReaderErrorType;
|
||
|
|
import kha.audio2.ogg.vorbis.VorbisDecodeState;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* ...
|
||
|
|
* @author shohei909
|
||
|
|
*/
|
||
|
|
class Page {
|
||
|
|
public var flag(default, null):Int;
|
||
|
|
|
||
|
|
public function new () {
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
public function clone() {
|
||
|
|
var page = new Page();
|
||
|
|
page.flag = flag;
|
||
|
|
return page;
|
||
|
|
}
|
||
|
|
|
||
|
|
// startPage
|
||
|
|
public function start(decodeState:VorbisDecodeState) {
|
||
|
|
decodeState.capturePattern();
|
||
|
|
startWithoutCapturePattern(decodeState);
|
||
|
|
}
|
||
|
|
|
||
|
|
// startPageNoCapturePattern
|
||
|
|
public function startWithoutCapturePattern(decodeState:VorbisDecodeState) {
|
||
|
|
var version = decodeState.readByte();
|
||
|
|
if (version != 0) {
|
||
|
|
throw new ReaderError(ReaderErrorType.INVALID_STREAM_STRUCTURE_VERSION, "" + version);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.flag = decodeState.readByte();
|
||
|
|
var loc0 = decodeState.readInt32();
|
||
|
|
var loc1 = decodeState.readInt32();
|
||
|
|
|
||
|
|
// input serial number -- vorbis doesn't interleave, so discard
|
||
|
|
decodeState.readInt32();
|
||
|
|
//if (this.serial != get32(f)) throw new ReaderError(ReaderErrorType.incorrectStreamSerialNumber);
|
||
|
|
|
||
|
|
// page sequence number
|
||
|
|
decodeState.readInt32();
|
||
|
|
|
||
|
|
// CRC32
|
||
|
|
decodeState.readInt32();
|
||
|
|
|
||
|
|
// pageSegments
|
||
|
|
decodeState.setup(loc0, loc1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
class PageFlag {
|
||
|
|
static public inline var CONTINUED_PACKET = 1;
|
||
|
|
static public inline var FIRST_PAGE = 2;
|
||
|
|
static public inline var LAST_PAGE = 4;
|
||
|
|
}
|