diff options
Diffstat (limited to 'intern/audaspace/FX/AUD_LimiterReader.cpp')
-rw-r--r-- | intern/audaspace/FX/AUD_LimiterReader.cpp | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/intern/audaspace/FX/AUD_LimiterReader.cpp b/intern/audaspace/FX/AUD_LimiterReader.cpp deleted file mode 100644 index 99778024514..00000000000 --- a/intern/audaspace/FX/AUD_LimiterReader.cpp +++ /dev/null @@ -1,143 +0,0 @@ -/* - * Copyright 2009-2011 Jörg Hermann Müller - * - * This file is part of AudaSpace. - * - * Audaspace 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 2 of the License, or - * (at your option) any later version. - * - * AudaSpace 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 Audaspace; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - */ - -/** \file audaspace/FX/AUD_LimiterReader.cpp - * \ingroup audfx - */ - - -#include "AUD_LimiterReader.h" -#include "AUD_Buffer.h" - -AUD_LimiterReader::AUD_LimiterReader(boost::shared_ptr<AUD_IReader> reader, - float start, float end) : - AUD_EffectReader(reader), - m_start(start), - m_end(end) -{ - if(m_start > 0) - { - AUD_Specs specs = m_reader->getSpecs(); - AUD_Specs specs2; - - if(m_reader->isSeekable()) - m_reader->seek(m_start * specs.rate); - else - { - // skip first m_start samples by reading them - int length = AUD_DEFAULT_BUFFER_SIZE; - AUD_Buffer buffer(AUD_DEFAULT_BUFFER_SIZE * AUD_SAMPLE_SIZE(specs)); - bool eos = false; - for(int len = m_start * specs.rate; - length > 0 && !eos; - len -= length) - { - if(len < AUD_DEFAULT_BUFFER_SIZE) - length = len; - - m_reader->read(length, eos, buffer.getBuffer()); - - specs2 = m_reader->getSpecs(); - if(specs2.rate != specs.rate) - { - len = len * specs2.rate / specs.rate; - specs.rate = specs2.rate; - } - - if(specs2.channels != specs.channels) - { - specs = specs2; - buffer.assureSize(AUD_DEFAULT_BUFFER_SIZE * AUD_SAMPLE_SIZE(specs)); - } - } - } - } -} - -void AUD_LimiterReader::seek(int position) -{ - m_reader->seek(position + m_start * m_reader->getSpecs().rate); -} - -int AUD_LimiterReader::getLength() const -{ - int len = m_reader->getLength(); - AUD_SampleRate rate = m_reader->getSpecs().rate; - if(len < 0 || (len > m_end * rate && m_end >= 0)) - len = m_end * rate; - return len - m_start * rate; -} - -int AUD_LimiterReader::getPosition() const -{ - int pos = m_reader->getPosition(); - AUD_SampleRate rate = m_reader->getSpecs().rate; - return AUD_MIN(pos, m_end * rate) - m_start * rate; -} - -void AUD_LimiterReader::read(int& length, bool& eos, sample_t* buffer) -{ - eos = false; - if(m_end >= 0) - { - int position = m_reader->getPosition(); - AUD_SampleRate rate = m_reader->getSpecs().rate; - - if(position + length > m_end * rate) - { - length = m_end * rate - position; - eos = true; - } - - if(position < int(m_start * rate)) - { - int len2 = length; - for(int len = int(m_start * rate) - position; - len2 == length && !eos; - len -= length) - { - if(len < length) - len2 = len; - - m_reader->read(len2, eos, buffer); - position += len2; - } - - if(position < m_start * rate) - { - length = 0; - return; - } - } - - if(length < 0) - { - length = 0; - return; - } - } - if(eos) - { - m_reader->read(length, eos, buffer); - eos = true; - } - else - m_reader->read(length, eos, buffer); -} |