diff options
Diffstat (limited to 'src/cacheaudiofile.cc')
-rw-r--r-- | src/cacheaudiofile.cc | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/src/cacheaudiofile.cc b/src/cacheaudiofile.cc deleted file mode 100644 index 0d4aec9..0000000 --- a/src/cacheaudiofile.cc +++ /dev/null @@ -1,156 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/*************************************************************************** - * cacheaudiofile.cc - * - * Thu Dec 24 12:17:58 CET 2015 - * Copyright 2015 Bent Bisballe Nyeng - * deva@aasimon.org - ****************************************************************************/ - -/* - * This file is part of DrumGizmo. - * - * DrumGizmo 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 2 of the License, or - * (at your option) any later version. - * - * DrumGizmo 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 DrumGizmo; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ -#include "cacheaudiofile.h" - -#include <assert.h> - -#include <hugin.hpp> - -#include <audiotypes.h> - -#include "cachemanager.h" - -CacheAudioFile::CacheAudioFile(const std::string& filename) - : filename(filename) -{ - fh = sf_open(filename.c_str(), SFM_READ, &sf_info); - if(!fh) - { - ERR(audiofile,"SNDFILE Error (%s): %s\n", - filename.c_str(), sf_strerror(fh)); - } -} - -CacheAudioFile::~CacheAudioFile() -{ - if(fh) - { - sf_close(fh); - fh = nullptr; - } -} - -size_t CacheAudioFile::getSize() const -{ - return sf_info.frames; -} - -const std::string& CacheAudioFile::getFilename() const -{ - return filename; -} - -void CacheAudioFile::readChunk(const CacheChannels& channels, - size_t pos, size_t num_samples) -{ - if(fh == nullptr) - { - printf("File handle is null.\n"); - return; - } - - if(pos > sf_info.frames) - { - printf("pos > sf_info.frames\n"); - return; - } - - sf_seek(fh, pos, - SEEK_SET); - - size_t size = sf_info.frames - pos; - if(size > num_samples) - { - size = num_samples; - } - - static sample_t *read_buffer = nullptr; - static size_t read_buffer_size = 0; - - if((size * sf_info.channels) > read_buffer_size) - { - delete[] read_buffer; - read_buffer_size = size * sf_info.channels; - read_buffer = new sample_t[read_buffer_size]; - // TODO: This buffer is never free'd on app shutdown. - } - - size_t read_size = sf_readf_float(fh, read_buffer, size); - (void)read_size; - - for(auto it = channels.begin(); it != channels.end(); ++it) - { - size_t channel = it->channel; - sample_t *data = it->samples; - for (size_t i = 0; i < size; ++i) - { - data[i] = read_buffer[(i * sf_info.channels) + channel]; - } - } - - for(auto it = channels.begin(); it != channels.end(); ++it) - { - *(it->ready) = true; - } -} - -CacheAudioFile& CacheAudioFiles::getAudioFile(const std::string filename) -{ - auto it = audiofiles.find(filename); - if(it == audiofiles.end()) - { - it = audiofiles.insert(audiofiles.begin(), std::make_pair(filename, new CacheAudioFile(filename))); - //it = audiofiles.find(filename); - } - - auto afile = it->second; - - // Increase ref count. - ++afile->ref; - - return *afile; -} - -void CacheAudioFiles::release(const std::string filename) -{ - auto it = audiofiles.find(filename); - if(it == audiofiles.end()) - { - return; // not open - } - - auto audiofile = it->second; - - assert(audiofile->ref); // If ref is not > 0 it shouldn't be in the map. - - --audiofile->ref; - if(audiofile->ref == 0) - { - delete audiofile; - audiofiles.erase(it); - } -} |