diff options
Diffstat (limited to 'src/plugins/General/converter/converter.cpp')
| -rw-r--r-- | src/plugins/General/converter/converter.cpp | 93 |
1 files changed, 40 insertions, 53 deletions
diff --git a/src/plugins/General/converter/converter.cpp b/src/plugins/General/converter/converter.cpp index 9a370af09..655eb780b 100644 --- a/src/plugins/General/converter/converter.cpp +++ b/src/plugins/General/converter/converter.cpp @@ -1,5 +1,5 @@ /*************************************************************************** - * Copyright (C) 2011-2015 by Ilya Kotov * + * Copyright (C) 2011-2016 by Ilya Kotov * * forkotov02@hotmail.ru * * * * This program is free software; you can redistribute it and/or modify * @@ -24,6 +24,8 @@ #include <qmmp/inputsourcefactory.h> #include <qmmp/decoderfactory.h> #include <qmmp/metadatamanager.h> +#include <qmmp/audioconverter.h> +#include <qmmp/buffer.h> #include <qmmpui/metadataformatter.h> #include <QtEndian> #include <taglib/fileref.h> @@ -33,28 +35,6 @@ #define QStringToTString_qt4(s) TagLib::String(s.toUtf8().constData(), TagLib::String::UTF8) -//static functions -static inline void s8_to_s16_2(qint8 *in, qint16 *out, qint64 samples) -{ - for(qint64 i = 0; i < samples; ++i) - out[i] = in[i] << 8; - return; -} - -static inline void s24_to_s16_2(qint32 *in, qint16 *out, qint64 samples) -{ - for(qint64 i = 0; i < samples; ++i) - out[i] = in[i] >> 8; - return; -} - -static inline void s32_to_s16_2(qint32 *in, qint16 *out, qint64 samples) -{ - for(qint64 i = 0; i < samples; ++i) - out[i] = in[i] >> 16; - return; -} - Converter::Converter(QObject *parent) : QThread(parent) {} @@ -305,55 +285,62 @@ void Converter::run() bool Converter::convert(Decoder *decoder, FILE *file, bool use16bit) { - const int buf_size = 8192; AudioParameters ap = decoder->audioParameters(); - Qmmp::AudioFormat format = ap.format(); - unsigned char output_buf[(use16bit && format == Qmmp::PCM_S8) ? buf_size : buf_size * 2]; - qint64 output_at = 0; - qint64 total = 0; - quint64 len = 0; - qint64 totalSize = decoder->totalTime() * ap.sampleRate() * ap.channels() * ap.sampleSize() / 1000; - + AudioConverter inConverter, outConverter; + qint64 len, total = 0; + Qmmp::AudioFormat outFormat = Qmmp::PCM_S16LE; int percent = 0; int prev_percent = 0; + int samples = 0, output_at = 0; + + qint64 totalSize = decoder->totalTime() * ap.sampleRate() * ap.channels() * ap.sampleSize() / 1000; + + inConverter.configure(ap.format()); + + if(use16bit) + outFormat = Qmmp::PCM_S16LE; + else if(ap.sampleSize() == 1) + outFormat = Qmmp::PCM_S8; + else if(ap.sampleSize() == 2) + outFormat = Qmmp::PCM_S16LE; + else if(ap.sampleSize() == 4) + outFormat = Qmmp::PCM_S32LE; + + outConverter.configure(outFormat); + + int outSampleSize = AudioParameters::sampleSize(outFormat); + + unsigned char input_buffer[QMMP_BLOCK_FRAMES * ap.sampleSize() * ap.channels() * 4]; + float converter_buffer[QMMP_BLOCK_FRAMES * ap.channels() * 4]; + unsigned char output_buffer[QMMP_BLOCK_FRAMES * outSampleSize * ap.channels() * 4]; + + emit progress(0); + forever { // decode - len = decoder->read((output_buf + output_at), buf_size - output_at); + len = decoder->read(input_buffer, sizeof(input_buffer)); if (len > 0) { - output_at += len; total += len; - if(use16bit) //TODO dithering support - { - if(format == Qmmp::PCM_S8) - { - s8_to_s16_2((qint8 *)output_buf, (qint16 *)output_buf, output_at); - output_at <<= 1; - } - else if(format == Qmmp::PCM_S24LE) - { - s24_to_s16_2((qint32 *)output_buf, (qint16 *)output_buf, output_at >> 2); - output_at >>= 1; - } - else if(format == Qmmp::PCM_S32LE) - { - s32_to_s16_2((qint32 *)output_buf, (qint16 *)output_buf, output_at >> 2); - output_at >>= 1; - } - } + samples = len / ap.sampleSize(); + + inConverter.toFloat(input_buffer, converter_buffer, samples); + outConverter.fromFloat(converter_buffer, output_buffer, samples); + output_at = samples * outSampleSize; + while(output_at > 0) { - len = fwrite(output_buf, 1, output_at, file); + len = fwrite(output_buffer, 1, output_at, file); if(len == 0) { qWarning("Converter: error"); return false; } output_at -= len; - memmove(output_buf, output_buf + len, output_at); + memmove(output_buffer, output_buffer + len, output_at); } percent = 100 * total / totalSize; if(percent != prev_percent) |