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added support for exporting WAVE-files with 32-bit-float format

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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1186 0778d3d1-df1d-0410-868b-ea421aaaa00d
This commit is contained in:
Tobias Doerffel
2008-06-28 13:43:35 +00:00
parent 88971109d0
commit 70965e3e30
11 changed files with 124 additions and 25 deletions
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4
src/core/audio/audio_file_device.cpp
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@@ -39,13 +39,15 @@ audioFileDevice::audioFileDevice( const sample_rate_t _sample_rate,
const bitrate_t _nom_bitrate,
const bitrate_t _min_bitrate,
const bitrate_t _max_bitrate,
const int _depth,
mixer * _mixer ) :
audioDevice( _channels, _mixer ),
m_outputFile( _file ),
m_useVbr( _use_vbr ),
m_nomBitrate( _nom_bitrate ),
m_minBitrate( _min_bitrate ),
m_maxBitrate( _max_bitrate )
m_maxBitrate( _max_bitrate ),
m_depth( _depth )
{
setSampleRate( _sample_rate );

12
src/core/audio/audio_file_ogg.cpp
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@@ -49,9 +49,11 @@ audioFileOgg::audioFileOgg( const sample_rate_t _sample_rate,
const bitrate_t _nom_bitrate,
const bitrate_t _min_bitrate,
const bitrate_t _max_bitrate,
const int _depth,
mixer * _mixer ) :
audioFileDevice( _sample_rate, _channels, _file, _use_vbr,
_nom_bitrate, _min_bitrate, _max_bitrate, _mixer )
_nom_bitrate, _min_bitrate, _max_bitrate,
_depth, _mixer )
{
_success_ful = startEncoding();
}
@@ -95,13 +97,13 @@ bool audioFileOgg::startEncoding( void )
// vbr enabled?
if( useVBR() == 0 )
{
m_minBitrate = nominalBitrate(); // min for vbr
m_maxBitrate = nominalBitrate(); // max for vbr
m_minBitrate = nominalBitrate(); // min for vbr
m_maxBitrate = nominalBitrate(); // max for vbr
}
else
{
m_minBitrate = minBitrate(); // min for vbr
m_maxBitrate = maxBitrate(); // max for vbr
m_minBitrate = minBitrate(); // min for vbr
m_maxBitrate = maxBitrate(); // max for vbr
}
m_rate = sampleRate(); // default-samplerate

66
src/core/audio/audio_file_wave.cpp
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@@ -40,9 +40,11 @@ audioFileWave::audioFileWave( const sample_rate_t _sample_rate,
const bitrate_t _nom_bitrate,
const bitrate_t _min_bitrate,
const bitrate_t _max_bitrate,
const int _depth,
mixer * _mixer ) :
audioFileDevice( _sample_rate, _channels, _file, _use_vbr,
_nom_bitrate, _min_bitrate, _max_bitrate, _mixer )
_nom_bitrate, _min_bitrate, _max_bitrate,
_depth, _mixer )
{
_success_ful = startEncoding();
}
@@ -60,6 +62,21 @@ audioFileWave::~audioFileWave()
bool audioFileWave::startEncoding( void )
{
#if LMMS_HAVE_SNDFILE_H
m_si.samplerate = sampleRate();
m_si.channels = channels();
m_si.frames = getMixer()->framesPerPeriod();
m_si.sections = 1;
m_si.seekable = 0;
switch( depth() )
{
case 32: m_si.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT; break;
case 16:
default: m_si.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16; break;
}
m_sf = sf_open( outputFile().toUtf8().constData(), SFM_WRITE, &m_si );
#else
if( outputFileOpened() == FALSE )
{
return( FALSE );
@@ -68,11 +85,10 @@ bool audioFileWave::startEncoding( void )
m_bytesWritten = 0;
memcpy( m_waveFileHeader.riff_id, "RIFF", 4 );
m_waveFileHeader.total_bytes = swap32IfBE( 0 );
m_waveFileHeader.total_bytes = 0;
memcpy( m_waveFileHeader.wave_fmt_str, "WAVEfmt ", 8 );
m_waveFileHeader.bitrate_1 =
m_waveFileHeader.bitrate_2 =
swap16IfBE( BYTES_PER_INT_SAMPLE * 8 );
m_waveFileHeader.bitrate_1 = m_waveFileHeader.bitrate_2 =
BYTES_PER_INT_SAMPLE * 8;
m_waveFileHeader.uncompressed = swap16IfBE( 1 );
m_waveFileHeader.channels = swap16IfBE( channels() );
m_waveFileHeader.sample_rate = swap32IfBE( sampleRate() );
@@ -81,10 +97,10 @@ bool audioFileWave::startEncoding( void )
m_waveFileHeader.block_alignment = swap16IfBE( BYTES_PER_INT_SAMPLE *
channels() );
memcpy ( m_waveFileHeader.data_chunk_id, "data", 4 );
m_waveFileHeader.data_bytes = swap32IfBE( 0 );
m_waveFileHeader.data_bytes = 0;
writeData( &m_waveFileHeader, sizeof( m_waveFileHeader ) );
#endif
return( TRUE );
}
@@ -95,14 +111,40 @@ void audioFileWave::writeBuffer( const surroundSampleFrame * _ab,
const fpp_t _frames,
const float _master_gain )
{
#if LMMS_HAVE_SNDFILE_H
if( depth() == 32 )
{
float * buf = new float[_frames*channels()];
for( fpp_t frame = 0; frame < _frames; ++frame )
{
for( ch_cnt_t chnl = 0; chnl < channels(); ++chnl )
{
buf[frame*channels()+chnl] = _ab[frame][chnl] *
_master_gain;
}
}
sf_writef_float( m_sf, buf, _frames );
delete[] buf;
}
else
{
int_sample_t * buf = new int_sample_t[_frames * channels()];
convertToS16( _ab, _frames, _master_gain, buf,
!isLittleEndian() );
sf_writef_short( m_sf, buf, _frames );
delete[] buf;
}
#else
int bytes = 0;
int_sample_t * outbuf = new int_sample_t[_frames * channels()];
Uint32 bytes = convertToS16( _ab, _frames, _master_gain, outbuf,
!isLittleEndian() );
writeData( outbuf, bytes );
delete[] outbuf;
m_bytesWritten += bytes;
#endif
}
@@ -110,14 +152,18 @@ void audioFileWave::writeBuffer( const surroundSampleFrame * _ab,
void audioFileWave::finishEncoding( void )
{
#if LMMS_HAVE_SNDFILE_H
sf_close( m_sf );
#else
seekToBegin();
m_waveFileHeader.total_bytes = m_bytesWritten+36;
m_waveFileHeader.data_bytes = m_bytesWritten;
m_waveFileHeader.total_bytes = swap32IfBE( m_bytesWritten+36 );
m_waveFileHeader.data_bytes = swap32IfBE( m_bytesWritten );
// write header again, because total-bytes-field and data-bytes-field
// have to be updated...
writeData( &m_waveFileHeader, sizeof( m_waveFileHeader ) );
#endif
}

3
src/core/main.cpp
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@@ -102,7 +102,8 @@ int main( int argc, char * * argv )
QString file_to_load, render_out;
mixer::qualitySettings qs( mixer::qualitySettings::Mode_HighQuality );
projectRenderer::outputSettings os( 44100, FALSE, 160 );
projectRenderer::outputSettings os( 44100, FALSE, 160,
projectRenderer::Depth_16Bit );
projectRenderer::ExportFileFormats eff = projectRenderer::WaveFile;

1
src/core/project_renderer.cpp
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@@ -79,6 +79,7 @@ projectRenderer::projectRenderer( const mixer::qualitySettings & _qs,
_os.samplerate, DEFAULT_CHANNELS, success_ful,
_out_file, _os.vbr,
_os.bitrate, _os.bitrate - 64, _os.bitrate + 64,
_os.depth == Depth_32Bit ? 32 : 16,
engine::getMixer() );
if( success_ful == FALSE )
{

8
src/gui/export_project_dialog.cpp
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@@ -137,9 +137,11 @@ void exportProjectDialog::startBtnClicked( void )
aliasFreeOscillatorsCB->isChecked() );
projectRenderer::outputSettings os = projectRenderer::outputSettings(
samplerateCB->currentText().section( " ", 0, 0 ).toUInt(),
FALSE,
bitrateCB->currentText().section( " ", 0, 0 ).toUInt() );
samplerateCB->currentText().section( " ", 0, 0 ).toUInt(),
FALSE,
bitrateCB->currentText().section( " ", 0, 0 ).toUInt(),
static_cast<projectRenderer::Depths>(
depthCB->currentIndex() ) );
m_renderer = new projectRenderer( qs, os, ft, m_fileName );
connect( m_renderer, SIGNAL( progressChanged( int ) ),