74 lines
2.3 KiB
C++
Executable File
74 lines
2.3 KiB
C++
Executable File
/*
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* Copyright (C) 2010-2011 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO 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 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO 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 DOUBANGO.
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*
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*/
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/**@file AudioResampler.cxx
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* @brief Audio resampler
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*
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* @author Mamadou Diop <diopmamadou(at)doubango.org>
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*/
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#include "AudioResampler.h"
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#include "tinymedia/tmedia_resampler.h"
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#include "tsk_debug.h"
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AudioResampler::AudioResampler(uint32_t nInFreq, uint32_t nOutFreq, uint32_t nFrameDuration, uint32_t nChannels, uint32_t nQuality):
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m_nOutFreq(nOutFreq),
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m_nInFreq(nInFreq),
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m_nFrameDuration(nFrameDuration),
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m_nChannels(nChannels),
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m_nQuality(nQuality)
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{
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if ((m_pWrappedResampler = tmedia_resampler_create())) {
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int ret;
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if ((ret = tmedia_resampler_open(m_pWrappedResampler, nInFreq, nOutFreq, nFrameDuration, nChannels, nChannels, m_nQuality, 16))){
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TSK_DEBUG_ERROR("Failed to open audio resampler (%d)", ret);
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TSK_OBJECT_SAFE_FREE(m_pWrappedResampler);
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}
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}
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else {
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TSK_DEBUG_ERROR("No audio resampler could be found. Did you forget to call tdav_init()?");
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}
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}
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AudioResampler::~AudioResampler()
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{
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TSK_OBJECT_SAFE_FREE(m_pWrappedResampler);
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}
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uint32_t AudioResampler::process(const void* pInData, uint32_t nInSizeInBytes, void* pOutData, uint32_t nOutSizeInBytes)
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{
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if(!m_pWrappedResampler){
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TSK_DEBUG_ERROR("Embedded resampler is invalid");
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return 0;
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}
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if(nInSizeInBytes < getInputRequiredSizeInShort()/2){
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TSK_DEBUG_ERROR("Input buffer is too short");
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return 0;
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}
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if(nOutSizeInBytes < getOutputRequiredSizeInShort()/2){
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TSK_DEBUG_ERROR("Output buffer is too short");
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return 0;
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}
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return 2*tmedia_resampler_process(m_pWrappedResampler, (uint16_t*)pInData, nInSizeInBytes/2, (uint16_t*)pOutData, nOutSizeInBytes/2);
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}
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