From 79f5b3ca078825a2e772433e09c3dbd1ad4faba7 Mon Sep 17 00:00:00 2001 From: trialuser02 Date: Mon, 11 Jan 2016 13:30:49 +0000 Subject: added soxr plugin git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@5982 90c681e8-e032-0410-971d-27865f9a5e38 --- src/plugins/Effect/soxr/soxresampler.cpp | 86 ++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 src/plugins/Effect/soxr/soxresampler.cpp (limited to 'src/plugins/Effect/soxr/soxresampler.cpp') diff --git a/src/plugins/Effect/soxr/soxresampler.cpp b/src/plugins/Effect/soxr/soxresampler.cpp new file mode 100644 index 000000000..5bc876160 --- /dev/null +++ b/src/plugins/Effect/soxr/soxresampler.cpp @@ -0,0 +1,86 @@ +/*************************************************************************** + * Copyright (C) 2016 by Ilya Kotov * + * forkotov02@hotmail.ru * + * * + * This program 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. * + * * + * This program 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 this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * + ***************************************************************************/ + +#include +#include +#include +#include +#include "soxresampler.h" + +SoXResampler::SoXResampler() : Effect() +{ + m_soxr = 0; + m_out = 0; + QSettings settings(Qmmp::configFile(), QSettings::IniFormat); + m_overSamplingFs = settings.value("SOXR/sample_rate", 48000).toInt(); + m_quality = soxr_quality_spec(settings.value("SOXR/quality", SOXR_HQ).toInt(), 0); +} + +SoXResampler::~SoXResampler() +{ + freeSoXR(); +} + +void SoXResampler::applyEffect(Buffer *b) +{ + if(m_soxr && b->samples > 0) + { + size_t frames = b->samples / channels(); + size_t done = 0; + soxr_process(m_soxr, b->data, frames, 0, m_out, frames, &done); + + b->samples = done * channels(); + if(b->samples > b->size) + { + delete [] b->data; + b->data = new float[b->samples]; + b->size = b->samples; + } + + memcpy(b->data, m_out, b->samples * sizeof(float)); + } +} + +void SoXResampler::configure(quint32 freq, ChannelMap map) +{ + freeSoXR(); + if(freq != m_overSamplingFs) + { + soxr_error_t error = 0; + m_soxr = soxr_create(freq, m_overSamplingFs, map.count(), &error, 0, &m_quality, 0); + double ratio = (double)m_overSamplingFs/freq; + m_out = new float[int(ratio * QMMP_BLOCK_FRAMES * map.count() * 2 + 2)]; + } + Effect::configure(m_overSamplingFs, map); +} + +void SoXResampler::freeSoXR() +{ + if(m_soxr) + { + soxr_delete(m_soxr); + m_soxr = 0; + } + if(m_out) + { + delete [] m_out; + m_out = 0; + } +} -- cgit v1.2.3-13-gbd6f