304 lines
7.4 KiB
C++
304 lines
7.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// LameXP - Audio Encoder Front-End
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// Copyright (C) 2004-2016 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_AC3.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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static const int g_ac3BitratesLUT[20] = {32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 448, 512, 576, 640, -1};
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///////////////////////////////////////////////////////////////////////////////
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// Encoder Info
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///////////////////////////////////////////////////////////////////////////////
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class AC3EncoderInfo : 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::CBRMode:
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return true;
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break;
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case SettingsModel::ABRMode:
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return false;
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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 65;
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break;
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case SettingsModel::ABRMode:
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return 0;
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break;
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case SettingsModel::CBRMode:
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return 19;
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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 qBound(0, index * 16, 1023);
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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_ac3BitratesLUT[qBound(0, index, 18)];
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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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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 = "Aften: A/52 Audio 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 = "ac3";
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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 false;
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}
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}
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static const g_aftenEncoderInfo;
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///////////////////////////////////////////////////////////////////////////////
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// Encoder implementation
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///////////////////////////////////////////////////////////////////////////////
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AC3Encoder::AC3Encoder(void)
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:
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m_binary(lamexp_tools_lookup("aften.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 FLAC encoder. Tool 'aften.exe' is not registred!");
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}
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m_configAudioCodingMode = 0;
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m_configDynamicRangeCompression = 5;
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m_configExponentSearchSize = 8;
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m_configFastBitAllocation = false;
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}
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AC3Encoder::~AC3Encoder(void)
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{
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}
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bool AC3Encoder::encode(const QString &sourceFile, const AudioFileModel_MetaInfo &metaInfo, const unsigned int duration, const QString &outputFile, volatile bool *abortFlag)
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{
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QProcess process;
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QStringList args;
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switch(m_configRCMode)
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{
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case SettingsModel::VBRMode:
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args << "-q" << QString::number(qBound(0, m_configBitrate * 16, 1023));
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break;
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case SettingsModel::CBRMode:
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args << "-b" << QString::number(g_ac3BitratesLUT[qBound(0, m_configBitrate, 18)]);
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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_configAudioCodingMode >= 1)
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{
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args << "-acmod" << QString::number(m_configAudioCodingMode - 1);
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}
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if(m_configDynamicRangeCompression != 5)
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{
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args << "-dynrng" << QString::number(m_configDynamicRangeCompression);
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}
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if(m_configExponentSearchSize != 8)
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{
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args << "-exps" << QString::number(m_configExponentSearchSize);
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}
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if(m_configFastBitAllocation)
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{
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args << "-fba" << QString::number(1);
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}
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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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bool bTimeout = false;
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bool bAborted = false;
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int prevProgress = -1;
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QRegExp regExp("progress:(\\s+)(\\d+)%(\\s+)\\|");
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while(process.state() != QProcess::NotRunning)
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{
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if(*abortFlag)
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{
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process.kill();
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bAborted = true;
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emit messageLogged("\nABORTED BY USER !!!");
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break;
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}
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process.waitForReadyRead(m_processTimeoutInterval);
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if(!process.bytesAvailable() && process.state() == QProcess::Running)
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{
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process.kill();
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qWarning("Aften process timed out <-- killing!");
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emit messageLogged("\nPROCESS TIMEOUT !!!");
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bTimeout = true;
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break;
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}
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while(process.bytesAvailable() > 0)
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{
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QByteArray line = process.readLine();
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QString text = QString::fromUtf8(line.constData()).simplified();
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if(regExp.lastIndexIn(text) >= 0)
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{
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bool ok = false;
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int progress = regExp.cap(2).toInt(&ok);
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if(ok && (progress > prevProgress))
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{
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emit statusUpdated(progress);
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prevProgress = qMin(progress + 2, 99);
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}
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}
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else if(!text.isEmpty())
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{
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emit messageLogged(text);
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}
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}
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}
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process.waitForFinished();
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if(process.state() != QProcess::NotRunning)
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{
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process.kill();
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process.waitForFinished(-1);
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}
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emit statusUpdated(100);
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emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
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if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
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{
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return false;
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}
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return true;
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}
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void AC3Encoder::setAudioCodingMode(int value)
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{
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m_configAudioCodingMode = qMin(8, qMax(0, value));
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}
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void AC3Encoder::setDynamicRangeCompression(int value)
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{
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m_configDynamicRangeCompression = qMin(5, qMax(0, value));
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}
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void AC3Encoder::setExponentSearchSize(int value)
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{
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m_configExponentSearchSize = qMin(32, qMax(1, value));
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}
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void AC3Encoder::setFastBitAllocation(bool value)
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{
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m_configFastBitAllocation = value;
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}
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const unsigned int *AC3Encoder::supportedChannelCount(void)
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{
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static const unsigned int supportedChannels[] = {1, 2, 3, 4, 5, 6, NULL};
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return supportedChannels;
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}
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const unsigned int *AC3Encoder::supportedSamplerates(void)
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{
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static const unsigned int supportedRates[] = {48000, 44100, 32000, NULL};
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return supportedRates;
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}
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bool AC3Encoder::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("Wave", Qt::CaseInsensitive) == 0)
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{
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if(formatType.compare("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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return false;
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}
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const AbstractEncoderInfo *AC3Encoder::getEncoderInfo(void)
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{
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return &g_aftenEncoderInfo;
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}
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