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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 "AEPackIEC61937.h"
#include "AEChannelInfo.h"
#include <stdint.h>
/* ffmpeg re-defines this, so undef it to squash the warning */
#undef restrict
extern "C" {
#include <libavutil/crc.h>
}
class CAEStreamInfo
{
public:
double GetDuration() const;
bool operator==(const CAEStreamInfo& info) const;
enum DataType
{
STREAM_TYPE_NULL,
STREAM_TYPE_AC3,
STREAM_TYPE_DTS_512,
STREAM_TYPE_DTS_1024,
STREAM_TYPE_DTS_2048,
STREAM_TYPE_DTSHD,
STREAM_TYPE_DTSHD_CORE,
STREAM_TYPE_EAC3,
STREAM_TYPE_MLP,
STREAM_TYPE_TRUEHD,
STREAM_TYPE_DTSHD_MA
};
DataType m_type = STREAM_TYPE_NULL;
unsigned int m_sampleRate;
unsigned int m_channels;
bool m_dataIsLE = true;
unsigned int m_dtsPeriod = 0;
unsigned int m_repeat = 0;
unsigned int m_ac3FrameSize = 0;
};
class CAEStreamParser
{
public:
CAEStreamParser();
~CAEStreamParser() = default;
int AddData(uint8_t *data, unsigned int size, uint8_t **buffer = NULL, unsigned int *bufferSize = 0);
void SetCoreOnly(bool value) { m_coreOnly = value; }
unsigned int IsValid() const { return m_hasSync; }
unsigned int GetSampleRate() const { return m_info.m_sampleRate; }
unsigned int GetChannels() const { return m_info.m_channels; }
unsigned int GetFrameSize() const { return m_fsize; }
// unsigned int GetDTSBlocks() const { return m_dtsBlocks; }
unsigned int GetDTSPeriod() const { return m_info.m_dtsPeriod; }
unsigned int GetEAC3BlocksDiv() const { return m_info.m_repeat; }
enum CAEStreamInfo::DataType GetDataType() const { return m_info.m_type; }
bool IsLittleEndian() const { return m_info.m_dataIsLE; }
unsigned int GetBufferSize() const { return m_bufferSize; }
CAEStreamInfo& GetStreamInfo() { return m_info; }
void Reset();
private:
uint8_t m_buffer[MAX_IEC61937_PACKET];
unsigned int m_bufferSize = 0;
unsigned int m_skipBytes = 0;
typedef unsigned int (CAEStreamParser::*ParseFunc)(uint8_t *data, unsigned int size);
CAEStreamInfo m_info;
bool m_coreOnly = false;
unsigned int m_needBytes = 0;
ParseFunc m_syncFunc;
bool m_hasSync = false;
unsigned int m_coreSize = 0; /* core size for dtsHD */
unsigned int m_dtsBlocks = 0;
unsigned int m_fsize = 0;
int m_substreams = 0; /* used for TrueHD */
AVCRC m_crcTrueHD[1024]; /* TrueHD crc table */
void GetPacket(uint8_t **buffer, unsigned int *bufferSize);
unsigned int DetectType(uint8_t *data, unsigned int size);
bool TrySyncAC3(uint8_t *data, unsigned int size, bool resyncing, bool wantEAC3dependent);
unsigned int SyncAC3(uint8_t *data, unsigned int size);
unsigned int SyncDTS(uint8_t *data, unsigned int size);
unsigned int SyncTrueHD(uint8_t *data, unsigned int size);
static unsigned int GetTrueHDChannels(const uint16_t chanmap);
};
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