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Diffstat (limited to 'bindings/_common/AudioResampler.cxx')
-rw-r--r-- | bindings/_common/AudioResampler.cxx | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/bindings/_common/AudioResampler.cxx b/bindings/_common/AudioResampler.cxx new file mode 100644 index 0000000..519376d --- /dev/null +++ b/bindings/_common/AudioResampler.cxx @@ -0,0 +1,73 @@ +/* +* 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); +} |