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/* $Id$ */ |
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/* |
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* FreeBob Streaming API |
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* FreeBob = Firewire (pro-)audio for linux |
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* |
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* http://freebob.sf.net |
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* |
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* Copyright (C) 2005,2006 Pieter Palmers <pieterpalmers@users.sourceforge.net> |
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* |
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* This program is free software {} you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation {} either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY {} without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program {} if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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* |
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* |
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*/ |
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#include "StreamProcessorManager.h" |
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#include "StreamProcessor.h" |
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#include "Port.h" |
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#include <errno.h> |
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#include <assert.h> |
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namespace FreebobStreaming { |
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IMPL_DEBUG_MODULE( StreamProcessorManager, StreamProcessorManager, DEBUG_LEVEL_NORMAL ); |
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StreamProcessorManager::StreamProcessorManager(unsigned int period, unsigned int nb_buffers) |
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: m_nb_buffers(nb_buffers), m_period(period), m_xruns(0) { |
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} |
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StreamProcessorManager::~StreamProcessorManager() { |
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} |
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int StreamProcessorManager::registerProcessor(StreamProcessor *processor) |
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{ |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Registering processor (%p) with manager\n",processor); |
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assert(processor); |
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if (processor->getType()==StreamProcessor::E_Receive) { |
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m_ReceiveProcessors.push_back(processor); |
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processor->setManager(this); |
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processor->setVerboseLevel(getDebugLevel()); |
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return 0; |
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} |
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|
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if (processor->getType()==StreamProcessor::E_Transmit) { |
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m_TransmitProcessors.push_back(processor); |
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processor->setManager(this); |
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processor->setVerboseLevel(getDebugLevel()); |
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return 0; |
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} |
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return -1; |
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} |
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int StreamProcessorManager::unregisterProcessor(StreamProcessor *processor) |
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{ |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Unregistering processor (%p) with manager\n",processor); |
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assert(processor); |
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|
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if (processor->getType()==StreamProcessor::E_Receive) { |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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if ( *it == processor ) { |
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m_ReceiveProcessors.erase(it); |
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processor->clearManager(); |
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return 0; |
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} |
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} |
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} |
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if (processor->getType()==StreamProcessor::E_Transmit) { |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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if ( *it == processor ) { |
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m_TransmitProcessors.erase(it); |
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processor->clearManager(); |
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return 0; |
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} |
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} |
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} |
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return -1; //not found |
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} |
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int StreamProcessorManager::getPortCount(enum Port::E_PortType type, enum Port::E_Direction direction) { |
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int count=0; |
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if (direction == Port::E_Capture) { |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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count += (*it)->getPortCount(type); |
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} |
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} else { |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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count += (*it)->getPortCount(type); |
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} |
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} |
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return count; |
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} |
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int StreamProcessorManager::getPortCount(enum Port::E_Direction direction) { |
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int count=0; |
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if (direction == Port::E_Capture) { |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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count += (*it)->getPortCount(); |
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} |
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} else { |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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count += (*it)->getPortCount(); |
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} |
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} |
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return count; |
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} |
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Port* StreamProcessorManager::getPortByIndex(int idx, enum Port::E_Direction direction) { |
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int count=0; |
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int prevcount=0; |
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if (direction == Port::E_Capture) { |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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count += (*it)->getPortCount(); |
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if (count > idx) { |
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return (*it)->getPortAtIdx(idx-prevcount); |
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} |
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prevcount=count; |
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} |
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} else { |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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count += (*it)->getPortCount(); |
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if (count > idx) { |
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return (*it)->getPortAtIdx(idx-prevcount); |
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} |
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prevcount=count; |
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} |
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} |
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return NULL; |
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} |
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bool StreamProcessorManager::Init() |
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{ |
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debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
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if(sem_init(&m_period_semaphore, 0, 0)) { |
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debugFatal( "Cannot init packet transfer semaphore\n"); |
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debugFatal( " Error: %s\n",strerror(errno)); |
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return false; |
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} else { |
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debugOutput( DEBUG_LEVEL_VERBOSE,"FREEBOB: successfull init of packet transfer semaphore\n"); |
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} |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Receive processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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if((*it)->init()) { |
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debugFatal("Could not initialize receive processor\n"); |
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return false; |
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} |
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} |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Transmit processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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if((*it)->init()) { |
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debugFatal("Could not initialize receive processor\n"); |
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return false; |
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} |
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} |
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return true; |
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} |
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bool StreamProcessorManager::Execute() |
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{ |
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debugOutput( DEBUG_LEVEL_VERY_VERBOSE, "enter...\n"); |
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bool period_ready=true; |
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m_xrun_has_occured=false; |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Receive processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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period_ready = period_ready && (*it)->isOnePeriodReady(); |
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m_xrun_has_occured = m_xrun_has_occured || (*it)->xrunOccurred(); |
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} |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Transmit processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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period_ready = period_ready && (*it)->isOnePeriodReady(); |
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m_xrun_has_occured = m_xrun_has_occured || (*it)->xrunOccurred(); |
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} |
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if(m_xrun_has_occured) { |
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// do xrun signaling/handling |
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m_xruns++; |
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sem_post(&m_period_semaphore); |
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return false; |
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} |
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if(period_ready) { |
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// signal the waiting thread(s?) that a period is ready |
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sem_post(&m_period_semaphore); |
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debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, "Period done...\n"); |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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(*it)->decrementFrameCounter(); |
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} |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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(*it)->decrementFrameCounter(); |
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} |
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} |
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return true; |
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} |
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int StreamProcessorManager::waitForPeriod() { |
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int ret; |
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debugOutput( DEBUG_LEVEL_VERY_VERBOSE, "enter...\n"); |
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// Wait for packetizer thread to signal a period completion |
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sem_wait(&m_period_semaphore); |
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if(m_xrun_has_occured) { |
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// notify the driver of the underrun |
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ret = 0; |
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} else { |
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ret=m_period; |
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} |
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return ret; |
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} |
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void StreamProcessorManager::reset() { |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Resetting processors...\n"); |
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/* |
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* Reset means: |
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* Bringing all buffers & connections into a know state |
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* - Clear all capture buffers |
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* - Put nb_periods*period_size of null frames into the playback buffers |
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* => implemented by a reset() call, implementation dependant on the type |
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*/ |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Receive processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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(*it)->reset(); |
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} |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Transmit processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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(*it)->reset(); |
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} |
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} |
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int StreamProcessorManager::transfer() { |
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debugOutput( DEBUG_LEVEL_VERY_VERBOSE, "Transferring period...\n"); |
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// a static cast could make sure that there is no performance |
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// penalty for the virtual functions (to be checked) |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Receive processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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(*it)->transfer(); |
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} |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Transmit processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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(*it)->transfer(); |
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} |
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return 0; |
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} |
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int StreamProcessorManager::transfer(enum StreamProcessor::EProcessorType t) { |
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debugOutput( DEBUG_LEVEL_VERY_VERBOSE, "Transferring period...\n"); |
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// a static cast could make sure that there is no performance |
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// penalty for the virtual functions (to be checked) |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Receive processors...\n"); |
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if (t==StreamProcessor::E_Receive) { |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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(*it)->transfer(); |
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} |
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} else { |
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// debugOutputShort( DEBUG_LEVEL_VERY_VERBOSE, " Transmit processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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(*it)->transfer(); |
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} |
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} |
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return 0; |
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} |
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void StreamProcessorManager::dumpInfo() { |
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debugOutputShort( DEBUG_LEVEL_NORMAL, "Dumping StreamProcessorManager information...\n"); |
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debugOutputShort( DEBUG_LEVEL_NORMAL, " Receive processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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(*it)->dumpInfo(); |
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} |
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debugOutputShort( DEBUG_LEVEL_NORMAL, " Transmit processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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(*it)->dumpInfo(); |
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} |
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} |
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void StreamProcessorManager::setVerboseLevel(int l) { |
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setDebugLevel(l); |
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debugOutputShort( DEBUG_LEVEL_NORMAL, " Receive processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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(*it)->setVerboseLevel(l); |
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} |
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debugOutputShort( DEBUG_LEVEL_NORMAL, " Transmit processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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(*it)->setVerboseLevel(l); |
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} |
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} |
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bool StreamProcessorManager::prepare() { |
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debugOutputShort( DEBUG_LEVEL_NORMAL, "setting port buffersize...\n"); |
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debugOutputShort( DEBUG_LEVEL_NORMAL, " Receive processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_ReceiveProcessors.begin(); |
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it != m_ReceiveProcessors.end(); |
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++it ) { |
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if(!(*it)->setPortBuffersize(m_period)) { |
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debugOutputShort( DEBUG_LEVEL_NORMAL, " could not set buffer size...\n"); |
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return false; |
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|
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} |
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} |
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debugOutputShort( DEBUG_LEVEL_NORMAL, " Transmit processors...\n"); |
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for ( StreamProcessorVectorIterator it = m_TransmitProcessors.begin(); |
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it != m_TransmitProcessors.end(); |
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++it ) { |
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if(!(*it)->setPortBuffersize(m_period)) { |
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debugOutputShort( DEBUG_LEVEL_NORMAL, " could not set buffer size...\n"); |
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return false; |
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} |
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} |
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return true; |
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} |
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|
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|
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} // end of namespace |
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