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165 lines (155 loc) · 5.39 KB
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/* @mediagen - tune build -
*
* mpeg2au.cpp
*
* This file was automatically generated
* from the source file:
* 'mpeg2au.fl'
*
* For information visit the Flavor Web site at:
* http://flavor.sourceforge.net
*
* -- Do not edit by hand --
*
*/
#include "stdafx.h"
#include <TBitstream.h>
#include "mpeg2au.h"
__ALX_BEGIN_NAMESPACE
const unsigned int LAYER1 = 3;
const unsigned int LAYER2 = 2;
const unsigned int LAYER3 = 1;
const int SINGLE_CHANNEL = 3;
const int DUAL_CHANNEL = 2;
const int JOINT_STEREO = 1;
const int STEREO = 0;
const int BITRATE[4][4][16] = { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0 }, { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0 }, { 0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, 0 } }, { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0 }, { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0 }, { 0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, 0 } }, { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 0 }, { 0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 0 }, { 0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 0 } } };
const int SAMPLING_FREQ[4][4] = { { 11025, 12000, 8000, -1 }, { -1, -1, -1, -1 }, { 22050, 24000, 16000, -1 }, { 44100, 48000, 32000, -1 } };
const int COEFFICIENTS[2][3] = { { 12, 144, 144 }, { 12, 144, 72 } };
int AudioHeader::get(IBitstream &var_bs) {
int var_ret = 0;
syncword = var_bs.getbits(11);
if (syncword != 2047) {
MG_ERROR(_T("Const value mismatch for 'syncword'"));
var_ret++;
}
id = var_bs.getbits(2);
layer = var_bs.getbits(2);
protection_bit = var_bs.getbits(1);
bitrate_index = var_bs.getbits(4);
sampling_frequency = var_bs.getbits(2);
padding_bit = var_bs.getbits(1);
private_bit = var_bs.getbits(1);
mode = var_bs.getbits(2);
mode_extension = var_bs.getbits(2);
copyright = var_bs.getbits(1);
original_copy = var_bs.getbits(1);
emphasis = var_bs.getbits(2);
return var_ret;
}
int AudioHeader::put(IBitstream &var_bs) {
int var_ret = 0;
int var_parse = 0;
var_parse = 11;
syncword = 2047;
var_bs.putbits(syncword, var_parse);
var_bs.putbits(id, 2);
var_bs.putbits(layer, 2);
var_bs.putbits(protection_bit, 1);
var_bs.putbits(bitrate_index, 4);
var_bs.putbits(sampling_frequency, 2);
var_bs.putbits(padding_bit, 1);
var_bs.putbits(private_bit, 1);
var_bs.putbits(mode, 2);
var_bs.putbits(mode_extension, 2);
var_bs.putbits(copyright, 1);
var_bs.putbits(original_copy, 1);
var_bs.putbits(emphasis, 2);
return var_ret;
}
int ID3::get(IBitstream &var_bs) {
int var_ret = 0;
ID_1 = var_bs.getbits(8);
ID_2 = var_bs.getbits(8);
ID_3 = var_bs.getbits(8);
return var_ret;
}
int ID3::put(IBitstream &var_bs) {
int var_ret = 0;
var_bs.putbits(ID_1, 8);
var_bs.putbits(ID_2, 8);
var_bs.putbits(ID_3, 8);
return var_ret;
}
int ID2V2_3::get(IBitstream &var_bs) {
int var_ret = 0;
var_ret += ID3::get(var_bs);
Version = var_bs.getbits(8);
Revision = var_bs.getbits(8);
Flags = var_bs.getbits(5);
if (Flags != 0) {
MG_ERROR(_T("Const value mismatch for 'Flags'"));
var_ret++;
}
ExperimentalIndicator = var_bs.getbits(1);
Extendedheader = var_bs.getbits(1);
Unsynchronisation = var_bs.getbits(1);
check = var_bs.getbits(1);
if (check != 0) {
MG_ERROR(_T("Const value mismatch for 'check'"));
var_ret++;
}
size1 = var_bs.getbits(7);
check = var_bs.getbits(1);
if (check != 0) {
MG_ERROR(_T("Const value mismatch for 'check'"));
var_ret++;
}
size2 = var_bs.getbits(7);
check = var_bs.getbits(1);
if (check != 0) {
MG_ERROR(_T("Const value mismatch for 'check'"));
var_ret++;
}
size3 = var_bs.getbits(7);
check = var_bs.getbits(1);
if (check != 0) {
MG_ERROR(_T("Const value mismatch for 'check'"));
var_ret++;
}
size4 = var_bs.getbits(7);
Size = ((size1<<21)|(size2<<14)|(size3<<7)|(size4))+10;
return var_ret;
}
int ID2V2_3::put(IBitstream &var_bs) {
int var_ret = 0;
int var_parse = 0;
var_ret += ID3::put(var_bs);
var_bs.putbits(Version, 8);
var_bs.putbits(Revision, 8);
var_parse = 5;
Flags = 0;
var_bs.putbits(Flags, var_parse);
var_bs.putbits(ExperimentalIndicator, 1);
var_bs.putbits(Extendedheader, 1);
var_bs.putbits(Unsynchronisation, 1);
var_parse = 1;
check = 0;
var_bs.putbits(check, var_parse);
var_bs.putbits(size1, 7);
var_parse = 1;
check = 0;
var_bs.putbits(check, var_parse);
var_bs.putbits(size2, 7);
var_parse = 1;
check = 0;
var_bs.putbits(check, var_parse);
var_bs.putbits(size3, 7);
var_parse = 1;
check = 0;
var_bs.putbits(check, var_parse);
var_bs.putbits(size4, 7);
Size = ((size1<<21)|(size2<<14)|(size3<<7)|(size4))+10;
return var_ret;
}
__ALX_END_NAMESPACE