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/*
* Video On Demand Samples
*
* Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* You may also obtain this software under a propriety license from Microchip.
* Please contact Microchip for further information.
*
*/
/*----------------------------------------------------------*/
/*! \file
* \brief This file contains the CStream class.
*/
/*----------------------------------------------------------*/
#ifndef STREAM_H
#define STREAM_H
#include "MacAddr.h"
#include "RingBuffer.h"
#include "Source.h"
#define PID_VIDEO(x) ( 0x100 + (x) )
#define PID_AUDIO(x) ( 0x200 + (x) )
#define PID_PMT(x) ( 0x300 + (x) )
#define mPID_VIDEO ( PID_VIDEO((*m_MacAddr)[5]) )
#define mPID_AUDIO ( PID_AUDIO((*m_MacAddr)[5]) )
#define mPID_PMT ( PID_PMT((*m_MacAddr)[5]) )
class CSource;
/*----------------------------------------------------------*/
/*! \brief Class representing a single transport stream for multiplexing.
*/
/*----------------------------------------------------------*/
class CStream : public CRingBuffer
{
static const uint32_t NUM_PACKETS_BUFFERED = 64; // the number has to be set that the total buffer is bigger than the buffer used by the driver. Otherwise streams might run dry or get overflows
static uint32_t m_nInstCnt;
uint32_t m_nInst;
CMacAddr *m_MacAddr;
CSource *m_pCurrSource;
CSource *m_pNextSource;
uint64_t m_nBytesSent;
uint32_t m_nErrBufOvfl;
uint8_t m_TsPmt[188];
/*----------------------------------------------------------*/
/*! \brief switch to a new source file
*/
/*----------------------------------------------------------*/
void Switch();
/*----------------------------------------------------------*/
/*! \brief calculates a PMT packet
*/
/*----------------------------------------------------------*/
void CalcPmt();
public:
/*----------------------------------------------------------*/
/*! \brief constructs CStream instance
*/
/*----------------------------------------------------------*/
CStream();
/*----------------------------------------------------------*/
/*! \brief de-constructs CStream instance
*/
/*----------------------------------------------------------*/
~CStream();
/*----------------------------------------------------------*/
/*! \brief gets the current mac address for the stream
* \return Pointer to the assigned MAC address
*/
/*----------------------------------------------------------*/
CMacAddr *GetMacAddr()
{
return m_MacAddr;
};
/*----------------------------------------------------------*/
/*! \brief Statistic function: gets the amount of Bytes sent.
* \note Calling this method will clear this value to 0.
*/
/*----------------------------------------------------------*/
uint64_t GetBytesSent()
{
uint64_t nTmp = m_nBytesSent;
m_nBytesSent = 0;
return nTmp;
};
/*----------------------------------------------------------*/
/*! \brief Statistic function: gets the amount of Bytes read.
* \note Calling this method will clear this value to 0.
*/
/*----------------------------------------------------------*/
uint64_t GetBytesRead();
/*----------------------------------------------------------*/
/*! \brief number of PCR errors since last call
*/
/*----------------------------------------------------------*/
uint64_t GetErrPcr();
/*----------------------------------------------------------*/
/*! \brief number of source buffer underflows since last call
*/
/*----------------------------------------------------------*/
uint64_t GetErrBufUnderflow();
/*----------------------------------------------------------*/
/*! \brief number of send buffer overflows since last call
*/
/*----------------------------------------------------------*/
uint32_t GetErrBufOverflow();
/*----------------------------------------------------------*/
/*! \brief Statistic function: gets the amount of erroneous transport streams packets.
* \note Calling this method will clear this value to 0.
*/
/*----------------------------------------------------------*/
uint64_t GetErrTs();
/*----------------------------------------------------------*/
/*! \brief unique ID for each stream
*/
/*----------------------------------------------------------*/
uint32_t GetInstId() { return m_nInst; };
void SendPmt();
void SendAudio(uint8_t *pTs);
void SendVideo(uint8_t *pTs);
/*----------------------------------------------------------*/
/*! \brief set a new source
* \param pSource - pointer to source object
*/
/*----------------------------------------------------------*/
void SetSource(CSource *pSource) { m_pNextSource = pSource; }
/*----------------------------------------------------------*/
/*! \brief sets a new mac address for the stream
* \param pMacAddr - The new MAC address assigned to this stream.
* \note This method performs a deep copy of the pMacAddr, so you are free to delete the variable at any time.
*/
/*----------------------------------------------------------*/
void SetMacAddr(CMacAddr *pMacAddr);
/*----------------------------------------------------------*/
/*! \brief set pause on/off
* \param bPause - true, to pause the stream. false, to play the stream.
*/
/*----------------------------------------------------------*/
void SetPause(bool bPause);
/*----------------------------------------------------------*/
/*! \brief set repeat mode
* \param bRepetition - if true stream will repeated for ever
*/
/*----------------------------------------------------------*/
void SetRepetition(bool bRepetition);
/*----------------------------------------------------------*/
/*! \brief Sets the new time position in the stream.
* \param nPos - The new time positon to set.
*/
/*----------------------------------------------------------*/
void SetPos(uint16_t nPos);
/*----------------------------------------------------------*/
/*! \brief Read from HDD to fill ring buffer
*
* \return true, if something was read from file.
*/
/*----------------------------------------------------------*/
bool ReadHdd();
/*----------------------------------------------------------*/
/*! \brief gets next TS packet to be sent
*
* \return true, if a packet was available
*/
/*----------------------------------------------------------*/
bool GetTsPacket(uint8_t *pTrg);
/*----------------------------------------------------------*/
/*! \brief Trace stream properties to console
*/
/*----------------------------------------------------------*/
void PrintStream();
};
#endif
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