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/*
* Copyright (C) 2010-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include <list>
#include <stdint.h>
#define MAX_IEC61937_PACKET 61440
#define IEC61937_DATA_OFFSET 8
#define DTS1_FRAME_SIZE 512
#define DTS2_FRAME_SIZE 1024
#define DTS3_FRAME_SIZE 2048
#define AC3_FRAME_SIZE 1536
#define EAC3_FRAME_SIZE 6144
#define TRUEHD_FRAME_SIZE 15360
#define OUT_SAMPLESIZE 16
#define OUT_CHANNELS 2
#define OUT_FRAMESTOBYTES(a) ((a) * OUT_CHANNELS * (OUT_SAMPLESIZE>>3))
class CAEPackIEC61937
{
public:
CAEPackIEC61937() = default;
typedef int (*PackFunc)(uint8_t *data, unsigned int size, uint8_t *dest);
static int PackAC3 (uint8_t *data, unsigned int size, uint8_t *dest);
static int PackEAC3 (uint8_t *data, unsigned int size, uint8_t *dest);
static int PackDTS_512 (uint8_t *data, unsigned int size, uint8_t *dest, bool littleEndian);
static int PackDTS_1024(uint8_t *data, unsigned int size, uint8_t *dest, bool littleEndian);
static int PackDTS_2048(uint8_t *data, unsigned int size, uint8_t *dest, bool littleEndian);
static int PackTrueHD (uint8_t *data, unsigned int size, uint8_t *dest);
static int PackDTSHD (uint8_t *data, unsigned int size, uint8_t *dest, unsigned int period);
static int PackPause(uint8_t *dest, unsigned int millis, unsigned int framesize, unsigned int samplerate, unsigned int rep_period, unsigned int encodedRate);
private:
static int PackDTS(uint8_t *data, unsigned int size, uint8_t *dest, bool littleEndian,
unsigned int frameSize, uint16_t type);
enum IEC61937DataType
{
IEC61937_TYPE_NULL = 0x00,
IEC61937_TYPE_AC3 = 0x01,
IEC61937_TYPE_DTS1 = 0x0B, /* 512 samples */
IEC61937_TYPE_DTS2 = 0x0C, /* 1024 samples */
IEC61937_TYPE_DTS3 = 0x0D, /* 2048 samples */
IEC61937_TYPE_DTSHD = 0x11,
IEC61937_TYPE_EAC3 = 0x15,
IEC61937_TYPE_TRUEHD = 0x16
};
#ifdef __GNUC__
struct __attribute__((__packed__)) IEC61937Packet
#else
__pragma(pack(push, 1))
struct IEC61937Packet
#endif
{
uint16_t m_preamble1;
uint16_t m_preamble2;
uint16_t m_type;
uint16_t m_length;
uint8_t m_data[MAX_IEC61937_PACKET - IEC61937_DATA_OFFSET];
};
#ifndef __GNUC__
__pragma(pack(pop))
#endif
};
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