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