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Diffstat (limited to 'Src/Multiplexer/Stream.cpp')
| -rw-r--r-- | Src/Multiplexer/Stream.cpp | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/Src/Multiplexer/Stream.cpp b/Src/Multiplexer/Stream.cpp new file mode 100644 index 0000000..37fa93b --- /dev/null +++ b/Src/Multiplexer/Stream.cpp @@ -0,0 +1,236 @@ +/* + * 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. + * + */ + +#include <stdint.h> +#include "Source.h" +#include "Stream.h" +#include "TsPacket.h" + + + +uint32_t CStream::m_nInstCnt = 0; + + + + +CStream::CStream() + : CRingBuffer(CTsPacket::TS_PACKET_LEN, CTsPacket::TS_PACKET_LEN, NUM_PACKETS_BUFFERED) + , m_nInst(m_nInstCnt++) + , m_MacAddr(NULL) + , m_pCurrSource(NULL) + , m_pNextSource(NULL) + , m_nBytesSent(0) + , m_nErrBufOvfl(0) +{ +} + + + + +CStream::~CStream() +{ + if (NULL != m_MacAddr) { + delete m_MacAddr; + m_MacAddr = NULL; + } + + if (NULL != m_pCurrSource) { + m_pCurrSource->RemoveStream(this); + } +} + + + + +bool CStream::ReadHdd() +{ + if (NULL != m_pNextSource) { //Switch sources, if there is a new one stored. + if (NULL != m_pCurrSource) // release old source + m_pCurrSource->RemoveStream(this); + + m_pCurrSource = m_pNextSource; // store new source + m_pNextSource = NULL; + m_pCurrSource->AddStream(this); // start listening to this source + } + + return (NULL == m_pCurrSource) ? false : m_pCurrSource->FillBuffer(); +} + + + + +void CStream::SendPmt() +{ + if ( !GetCanWrite() ) + { + m_nErrBufOvfl++; + return; + } + + m_TsPmt[3] = (m_TsPmt[3] & 0xF0) | // update continuity counter + (((m_TsPmt[3] & 0x0F) + 1) & 0x0F); + + memcpy(GetWritePos(), m_TsPmt, CTsPacket::TS_PACKET_LEN); + WriteDone(); +} + + + + +void CStream::SendAudio(uint8_t *pTs) +{ + if ( !GetCanWrite() ) + { + m_nErrBufOvfl++; + return; + } + + pTs[1] = (pTs[1] & 0xE0) | (mPID_AUDIO >> 8); // replace Audio PID + pTs[2] = mPID_AUDIO & 0xFF; + + memcpy(GetWritePos(), pTs, CTsPacket::TS_PACKET_LEN); + WriteDone(); +} + + + + +void CStream::SendVideo(uint8_t *pTs) +{ + if ( !GetCanWrite() ) + { + m_nErrBufOvfl++; + return; + } + + pTs[1] = (pTs[1] & 0xE0) | (mPID_VIDEO >> 8); // replace video PID + pTs[2] = mPID_VIDEO & 0xFF; + + memcpy(GetWritePos(), pTs, CTsPacket::TS_PACKET_LEN); + WriteDone(); +} + + + +bool CStream::GetTsPacket(uint8_t *pTs) +{ + if ( NULL == pTs || // pointer check + NULL == m_MacAddr ) // we have a target address? + return false; + + if ( !GetCanRead() ) // ring buffer empty? + if ( m_pCurrSource ) + m_pCurrSource->SendTsPacket(this); // get data from source + + if ( !GetCanRead() ) // ring buffer still empty? + return false; + + memcpy(pTs, GetReadPos(), CTsPacket::TS_PACKET_LEN); + ReadDone(); + m_nBytesSent += CTsPacket::TS_PACKET_LEN; + return true; +} + + + + +void CStream::SetMacAddr(CMacAddr *pMacAddr) +{ + if (NULL != m_MacAddr) { + delete m_MacAddr; + m_MacAddr = NULL; + } + m_MacAddr = new CMacAddr(pMacAddr); + + if (NULL != m_MacAddr) + CTsPacket::CreatePmt(m_TsPmt, mPID_AUDIO, mPID_VIDEO, mPID_PMT); +} + + + +uint64_t CStream::GetBytesRead() +{ + return (NULL == m_pCurrSource) ? 0 : m_pCurrSource->GetBytesRead(); +} + + + +uint64_t CStream::GetErrBufUnderflow() +{ + return m_pCurrSource ? m_pCurrSource->GetErrBuf() : 0; +} + + + +uint32_t CStream::GetErrBufOverflow() +{ + uint32_t nRet = m_nErrBufOvfl; + m_nErrBufOvfl = 0; + return nRet; +} + + + +uint64_t CStream::GetErrPcr() +{ + return m_pCurrSource ? m_pCurrSource->GetErrPcr() : 0; +}; + + + +uint64_t CStream::GetErrTs() +{ + return m_pCurrSource ? m_pCurrSource->GetErrTs() : 0; +}; + + + +void CStream::SetPause(bool bPause) +{ + if (NULL != m_pCurrSource) + m_pCurrSource->SetPause(bPause); +} + + + +void CStream::SetRepetition(bool bRepetition) { + if (m_pCurrSource) + m_pCurrSource->SetRepetition(bRepetition); +} + + + +void CStream::SetPos(uint16_t nPos) { + if ( m_pCurrSource ) + m_pCurrSource->SetPos(nPos); +} + + +void CStream::PrintStream() { + ConsolePrintf( PRIO_HIGH, " %2u %3d %3u %s\r\n" + , GetInstId() + , NULL == m_pCurrSource ? (-1) : (m_pCurrSource->GetInstId()) + , m_nErrBufOvfl + , NULL == m_MacAddr ? "NULL " : m_MacAddr->ToString() + ); +} |