353 lines
9.4 KiB
C++
353 lines
9.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// LameXP - Audio Encoder Front-End
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// Copyright (C) 2004-2018 LoRd_MuldeR <MuldeR2@GMX.de>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version, but always including the *additional*
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// restrictions defined in the "License.txt" file.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// http://www.gnu.org/licenses/gpl-2.0.txt
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///////////////////////////////////////////////////////////////////////////////
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#include "Encoder_MP3.h"
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#include "Global.h"
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#include "Model_Settings.h"
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#include <QProcess>
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#include <QDir>
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#include <limits.h>
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static const int g_lameAgorithmQualityLUT[5] = {7, 5, 2, 0, INT_MAX};
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static const int g_mp3BitrateLUT[15] = {32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, -1};
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static const int g_lameVBRQualityLUT[11] = {9, 8, 7, 6, 5, 4, 3, 2, 1, 0, INT_MAX};
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//Static
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QScopedPointer<QRegExp> MP3Encoder::m_regxLayer, MP3Encoder::m_regxVersion;
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QMutex MP3Encoder::m_regexMutex;
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///////////////////////////////////////////////////////////////////////////////
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// Encoder Info
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///////////////////////////////////////////////////////////////////////////////
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class MP3EncoderInfo : public AbstractEncoderInfo
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{
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virtual bool isModeSupported(int mode) const
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{
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switch(mode)
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{
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case SettingsModel::VBRMode:
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case SettingsModel::ABRMode:
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case SettingsModel::CBRMode:
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return true;
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break;
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default:
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MUTILS_THROW("Bad RC mode specified!");
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}
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}
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virtual int valueCount(int mode) const
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{
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switch(mode)
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{
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case SettingsModel::VBRMode:
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return 10;
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break;
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case SettingsModel::ABRMode:
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case SettingsModel::CBRMode:
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return 14;
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break;
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default:
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MUTILS_THROW("Bad RC mode specified!");
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}
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}
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virtual int valueAt(int mode, int index) const
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{
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switch(mode)
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{
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case SettingsModel::VBRMode:
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return g_lameVBRQualityLUT[qBound(0, index, 9)];
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break;
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case SettingsModel::ABRMode:
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case SettingsModel::CBRMode:
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return g_mp3BitrateLUT[qBound(0, index, 13)];
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break;
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default:
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MUTILS_THROW("Bad RC mode specified!");
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}
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}
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virtual int valueType(int mode) const
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{
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switch(mode)
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{
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case SettingsModel::VBRMode:
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return TYPE_QUALITY_LEVEL_INT;
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break;
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case SettingsModel::ABRMode:
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return TYPE_APPROX_BITRATE;
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break;
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case SettingsModel::CBRMode:
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return TYPE_BITRATE;
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break;
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default:
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MUTILS_THROW("Bad RC mode specified!");
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}
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}
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virtual const char *description(void) const
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{
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static const char* s_description = "LAME MP3 Encoder";
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return s_description;
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}
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virtual const char *extension(void) const
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{
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static const char* s_extension = "mp3";
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return s_extension;
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}
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virtual bool isResamplingSupported(void) const
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{
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return true;
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}
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}
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static const g_mp3EncoderInfo;
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///////////////////////////////////////////////////////////////////////////////
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// Encoder implementation
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///////////////////////////////////////////////////////////////////////////////
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MP3Encoder::MP3Encoder(void)
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:
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m_binary(lamexp_tools_lookup(L1S("lame.exe")))
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{
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if(m_binary.isEmpty())
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{
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MUTILS_THROW("Error initializing MP3 encoder. Tool 'lame.exe' is not registred!");
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}
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m_algorithmQuality = 2;
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m_configBitrateMaximum = 0;
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m_configBitrateMinimum = 0;
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m_configSamplingRate = 0;
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m_configChannelMode = 0;
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}
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MP3Encoder::~MP3Encoder(void)
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{
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}
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bool MP3Encoder::encode(const QString &sourceFile, const AudioFileModel_MetaInfo &metaInfo, const unsigned int duration, const unsigned int channels, const QString &outputFile, QAtomicInt &abortFlag)
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{
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QProcess process;
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QStringList args;
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args << L1S("--nohist");
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args << L1S("-q") << QString::number(g_lameAgorithmQualityLUT[m_algorithmQuality]);
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switch(m_configRCMode)
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{
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case SettingsModel::VBRMode:
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args << L1S("-V") << QString::number(g_lameVBRQualityLUT[qBound(0, m_configBitrate, 9)]);
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break;
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case SettingsModel::ABRMode:
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args << L1S("--abr") << QString::number(g_mp3BitrateLUT[qBound(0, m_configBitrate, 13)]);
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break;
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case SettingsModel::CBRMode:
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args << L1S("--cbr");
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args << L1S("-b") << QString::number(g_mp3BitrateLUT[qBound(0, m_configBitrate, 13)]);
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break;
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default:
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MUTILS_THROW("Bad rate-control mode!");
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break;
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}
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if((m_configBitrateMaximum > 0) && (m_configBitrateMinimum > 0) && (m_configBitrateMinimum <= m_configBitrateMaximum))
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{
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if(m_configRCMode != SettingsModel::CBRMode)
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{
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args << L1S("-b") << QString::number(clipBitrate(m_configBitrateMinimum));
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args << L1S("-B") << QString::number(clipBitrate(m_configBitrateMaximum));
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}
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}
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if(m_configSamplingRate > 0)
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{
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args << L1S("--resample") << QString::number(m_configSamplingRate);
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}
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switch(m_configChannelMode)
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{
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case 1:
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args << L1S("-m") << L1S("j");
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break;
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case 2:
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args << L1S("-m") << L1S("f");
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break;
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case 3:
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args << L1S("-m") << L1S("s");
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break;
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case 4:
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args << L1S("-m") << L1S("d");
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break;
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case 5:
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args << L1S("-m") << L1S("m");
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break;
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}
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bool bUseUCS2 = false;
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if(isUnicode(metaInfo.title())) bUseUCS2 = true;
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if(isUnicode(metaInfo.artist())) bUseUCS2 = true;
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if(isUnicode(metaInfo.album())) bUseUCS2 = true;
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if(isUnicode(metaInfo.genre())) bUseUCS2 = true;
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if(isUnicode(metaInfo.comment())) bUseUCS2 = true;
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if (bUseUCS2) args << L1S("--id3v2-ucs2"); //Must specify this BEFORE "--tt" and friends!
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if(!metaInfo.title().isEmpty()) args << L1S("--tt") << cleanTag(metaInfo.title());
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if(!metaInfo.artist().isEmpty()) args << L1S("--ta") << cleanTag(metaInfo.artist());
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if(!metaInfo.album().isEmpty()) args << L1S("--tl") << cleanTag( metaInfo.album());
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if(!metaInfo.genre().isEmpty()) args << L1S("--tg") << cleanTag(metaInfo.genre());
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if(!metaInfo.comment().isEmpty()) args << L1S("--tc") << cleanTag(metaInfo.comment());
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if(metaInfo.year()) args << L1S("--ty") << QString::number(metaInfo.year());
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if(metaInfo.position()) args << L1S("--tn") << QString::number(metaInfo.position());
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if(!metaInfo.cover().isEmpty()) args << L1S("--ti") << QDir::toNativeSeparators(metaInfo.cover());
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if(!m_configCustomParams.isEmpty()) args << m_configCustomParams.split(" ", QString::SkipEmptyParts);
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args << QDir::toNativeSeparators(sourceFile);
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args << QDir::toNativeSeparators(outputFile);
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if(!startProcess(process, m_binary, args))
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{
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return false;
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}
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int prevProgress = -1;
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QRegExp regExp(L1S("\\(.*(\\d+)%\\)\\|"));
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const result_t result = awaitProcess(process, abortFlag, [this, &prevProgress, ®Exp](const QString &text)
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{
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if (regExp.lastIndexIn(text) >= 0)
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{
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qint32 newProgress;
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if (MUtils::regexp_parse_int32(regExp, newProgress))
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{
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if (newProgress > prevProgress)
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{
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emit statusUpdated(newProgress);
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prevProgress = NEXT_PROGRESS(newProgress);
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}
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}
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return true;
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}
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return false;
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});
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return (result == RESULT_SUCCESS);
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}
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bool MP3Encoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
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{
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if(containerType.compare(L1S("Wave"), Qt::CaseInsensitive) == 0)
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{
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if(formatType.compare(L1S("PCM"), Qt::CaseInsensitive) == 0)
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{
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return true;
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}
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}
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static const QLatin1String mpegAudio("MPEG Audio"), waveAudio("Wave"), pcmFormat("PCM");
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if ((containerType.compare(mpegAudio, Qt::CaseInsensitive) == 0) || (containerType.compare(waveAudio, Qt::CaseInsensitive) == 0))
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{
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if (formatType.compare(pcmFormat, Qt::CaseInsensitive) == 0)
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{
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return true;
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}
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else if (formatType.compare(mpegAudio, Qt::CaseInsensitive) == 0)
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{
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QMutexLocker lock(&m_regexMutex);
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if (m_regxLayer.isNull())
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{
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m_regxLayer.reset(new QRegExp(L1S("^Layer\\s+(1|2|3)\\b"), Qt::CaseInsensitive));
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}
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if (m_regxLayer->indexIn(formatProfile) >= 0)
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{
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if (m_regxVersion.isNull())
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{
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m_regxVersion.reset(new QRegExp(L1S("^(Version\\s+)?(1|2|2\\.5)\\b"), Qt::CaseInsensitive));
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}
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return (m_regxVersion->indexIn(formatVersion) >= 0);
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}
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}
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}
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return false;
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}
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const unsigned int *MP3Encoder::supportedChannelCount(void)
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{
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static const unsigned int supportedChannels[] = {1, 2, NULL};
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return supportedChannels;
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}
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void MP3Encoder::setAlgoQuality(int value)
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{
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m_algorithmQuality = qBound(0, value, 3);
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}
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void MP3Encoder::setBitrateLimits(int minimumBitrate, int maximumBitrate)
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{
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m_configBitrateMinimum = minimumBitrate;
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m_configBitrateMaximum = maximumBitrate;
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}
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void MP3Encoder::setChannelMode(int value)
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{
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m_configChannelMode = value;
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}
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int MP3Encoder::clipBitrate(int bitrate)
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{
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int targetBitrate = qMin(qMax(bitrate, 32), 320);
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int minDiff = INT_MAX;
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int minIndx = -1;
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for(int i = 0; g_mp3BitrateLUT[i] > 0; i++)
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{
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int currentDiff = abs(targetBitrate - g_mp3BitrateLUT[i]);
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if(currentDiff < minDiff)
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{
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minDiff = currentDiff;
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minIndx = i;
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}
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}
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if(minIndx >= 0)
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{
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return g_mp3BitrateLUT[minIndx];
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}
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return targetBitrate;
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}
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const AbstractEncoderInfo *MP3Encoder::getEncoderInfo(void)
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{
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return &g_mp3EncoderInfo;
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}
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