121 lines
4.1 KiB
C++
121 lines
4.1 KiB
C++
/** @file
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* @author Edouard DUPIN
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* @copyright 2011, Edouard DUPIN, all right reserved
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* @license APACHE v2.0 (see license file)
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*/
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#include <audio/algo/speex/Resampler.h>
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#include <audio/algo/speex/debug.h>
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#include <cmath>
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#undef __class__
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#define __class__ "algo::speex::Resampler"
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audio::algo::speex::Resampler::Resampler() :
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#ifdef HAVE_SPEEX_DSP
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m_speexResampler(nullptr),
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#endif
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m_isConfigured(false) {
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}
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audio::algo::speex::Resampler::~Resampler() {
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#ifdef HAVE_SPEEX_DSP
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if (m_speexResampler != nullptr) {
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speex_resampler_destroy(m_speexResampler);
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m_speexResampler = nullptr;
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}
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#endif
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}
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void audio::algo::speex::Resampler::init(int8_t _nbChannel, float _inputSampleRate, float _outputSampleRate, int8_t _quality) {
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#ifdef HAVE_SPEEX_DSP
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if (m_speexResampler != nullptr) {
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speex_resampler_destroy(m_speexResampler);
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m_speexResampler = nullptr;
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}
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AA_SPEEX_DEBUG("Create resampler for : " << _inputSampleRate << " to " << _outputSampleRate);
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int err = 0;
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m_speexResampler = speex_resampler_init(_nbChannel,
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_inputSampleRate,
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_outputSampleRate,
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_quality, &err);
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m_isConfigured = true;
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#else
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AA_SPEEX_WARNING("SPEEX DSP lib not accessible ==> can not resample");
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m_isConfigured = false;
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#endif
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}
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std::vector<enum audio::format> audio::algo::speex::Resampler::getSupportedFormat() {
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std::vector<enum audio::format> out = getNativeSupportedFormat();
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return out;
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}
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std::vector<enum audio::format> audio::algo::speex::Resampler::getNativeSupportedFormat() {
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std::vector<enum audio::format> out;
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out.push_back(audio::format_float);
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out.push_back(audio::format_int16);
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return out;
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}
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void audio::algo::speex::Resampler::process(void* _output, size_t& _nbChunkOut, const void* _input, size_t _nbChunk, enum audio::format _format) {
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if (m_isConfigured == false) {
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AA_SPEEX_ERROR("Algo is not initialized...");
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}
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#ifdef HAVE_SPEEX_DSP
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switch (_format) {
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case audio::format_int16:
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{
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uint32_t nbChunkInput = _nbChunk;
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uint32_t nbChunkOutput = _nbChunkOut;
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int ret = speex_resampler_process_interleaved_int(m_speexResampler,
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reinterpret_cast<const int16_t*>(_input),
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&nbChunkInput,
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reinterpret_cast<int16_t*>(_output),
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&nbChunkOutput);
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// Check all input and output ...
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if (nbChunkInput != _nbChunk) {
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AA_SPEEX_ERROR("inputSize (not all read ...) proceed=" << nbChunkInput << " requested=" << _nbChunk);
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// TODO : manage this case ...
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}
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if (nbChunkOutput == _nbChunkOut) {
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AA_SPEEX_ERROR("Might have not enought data in output... output size=" << _nbChunkOut);
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// TODO : manage this case ...
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}
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_nbChunkOut = nbChunkOutput;
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}
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break;
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case audio::format_float:
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{
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uint32_t nbChunkInput = _nbChunk;
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uint32_t nbChunkOutput = _nbChunkOut;
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int ret = speex_resampler_process_interleaved_float(m_speexResampler,
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reinterpret_cast<const float*>(_input),
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&nbChunkInput,
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reinterpret_cast<float*>(_output),
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&nbChunkOutput);
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// Check all input and output ...
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if (nbChunkInput != _nbChunk) {
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AA_SPEEX_ERROR("inputSize (not all read ...) proceed=" << nbChunkInput << " requested=" << _nbChunk);
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// TODO : manage this case ...
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}
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if (nbChunkOutput == _nbChunkOut) {
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AA_SPEEX_ERROR("Might have not enought data in output... output size=" << _nbChunkOut);
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// TODO : manage this case ...
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}
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_nbChunkOut = nbChunkOutput;
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}
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break;
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default:
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AA_SPEEX_ERROR("Can not Limit with unsupported format : " << _format);
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break;
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}
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#else
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AA_SPEEX_ERROR("Not build with speex DSP ... ");
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_nbChunkOut = _nbChunk/10;
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#endif
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}
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