84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/** @file
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* @author Edouard DUPIN
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* @copyright 2014, 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/blockEngine/debug.hpp>
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#include <audio/blockEngine/base/GeneratorSignal.hpp>
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#include <audio/blockEngine/core/BufferStream.hpp>
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#include <audio/blockEngine/base/GeneratorFile.hpp>
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audio::blockEngine::GeneratorFile::GeneratorFile() :
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m_file(nullptr) {
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// set output :
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m_io.insert(
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std::pair<std::string, audio::blockEngine::Block::IOProperty>(
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"out",
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audio::blockEngine::Block::IOProperty(
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audio::blockEngine::Block::ioOutput,
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"{ type:'bitstream', format:'file' }",
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new audio::blockEngine::BufferStream(*this)
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) ) );
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}
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int32_t audio::blockEngine::GeneratorFile::pull(double _currentTime, int32_t _request, float _timeout) {
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auto it = m_io.find("out");
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if (it == m_io.end()) {
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ABE_WARNING("request to pull data with no output !!!");
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return audio::blockEngine::ERR_FAIL;
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}
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audio::blockEngine::BufferStream* buffer = dynamic_cast<audio::blockEngine::BufferStream*>(it->second.m_buffer);
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//ABE_ERROR("Generate data, request : " << _request << " at time : " << _currentTime);
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if (buffer == nullptr) {
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// !! impossible case => a buffer can not be removed ...
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ABE_ERROR("Buffer has been removed... OR change type ...");
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return audio::blockEngine::ERR_FAIL;
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}
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//request outpuffer needed size :
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buffer->setProperty(_request);
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uint8_t* data = buffer->getData();
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if (m_file == nullptr) {
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ABE_ERROR("Buffer output error ==> !!ERROR!!");
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return audio::blockEngine::ERR_FAIL;
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}
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int64_t nbRead = m_file->fileRead(data, sizeof(uint8_t), _request);
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buffer->setAvaillableSize(nbRead);
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return audio::blockEngine::ERR_NONE;
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}
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int32_t audio::blockEngine::GeneratorFile::init() {
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m_file = new etk::FSNode("DATA:menu.wav");
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if (m_file == nullptr) {
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ABE_ERROR("Can not allocate the input file ...");
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return audio::blockEngine::ERR_FAIL;
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}
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if (m_file->fileOpenRead() == false) {
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ABE_ERROR("Can not open the input file ...");
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return audio::blockEngine::ERR_FAIL;
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}
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return audio::blockEngine::ERR_NONE;
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}
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int32_t audio::blockEngine::GeneratorFile::unInit() {
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if (m_file == nullptr) {
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return audio::blockEngine::ERR_NONE;
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}
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if (m_file->fileClose() == false) {
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ABE_ERROR("Can not close the input file ...");
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delete(m_file);
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m_file = nullptr;
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return audio::blockEngine::ERR_FAIL;
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}
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delete(m_file);
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m_file = nullptr;
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return audio::blockEngine::ERR_NONE;
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}
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