From 36b768c465c6ecddceb57ff1d7a5087e9848c897 Mon Sep 17 00:00:00 2001 From: llornkcor Date: Sun, 24 Feb 2002 21:51:51 +0000 Subject: changed mediaplayerplugininterface.h location --- (limited to 'core/multimedia/opieplayer/wavplugin/wavplugin.cpp') diff --git a/core/multimedia/opieplayer/wavplugin/wavplugin.cpp b/core/multimedia/opieplayer/wavplugin/wavplugin.cpp index a6bd974..7f63b3b 100644 --- a/core/multimedia/opieplayer/wavplugin/wavplugin.cpp +++ b/core/multimedia/opieplayer/wavplugin/wavplugin.cpp @@ -17,6 +17,8 @@ ** not clear to you. ** **********************************************************************/ +// L.J.Potter added changes Fri 02-15-2002 + #include #include #include @@ -26,7 +28,7 @@ #include "wavplugin.h" -//#define debugMsg(a) qDebug(a) +//#define debugMsg(a) qDebug(a) #define debugMsg(a) @@ -47,7 +49,7 @@ struct ChunkData { }; -const int sound_buffer_size = 4096; +const int sound_buffer_size = 512; // 4096; // you got to be kidding right? class WavPluginData { @@ -63,130 +65,130 @@ public: int samples; WavPluginData() { - max = out = sound_buffer_size; - wavedata_remaining = 0; - samples_due = 0; - samples = -1; + max = out = sound_buffer_size; + wavedata_remaining = 0; + samples_due = 0; + samples = -1; } // expands out samples to the frequency of 44kHz bool add( short *output, long count, long& done, bool stereo ) { - done = 0; + done = 0; + qApp->processEvents(); - if ( input == 0 ) { - qDebug("no input"); - return FALSE; - } + if ( input == 0 ) { + qDebug("no input"); + return FALSE; + } while ( count ) { int l,r; if ( getSample(l, r) == FALSE ) { - qDebug("didn't get sample"); - return FALSE; - } - samples_due += 44100; - while ( count && (samples_due > chunkdata.samplesPerSec) ) { - *output++ = l; - if ( stereo ) - *output++ = r; + qDebug("didn't get sample"); + return FALSE; + } + samples_due += chunkdata.samplesPerSec; + while ( count && (samples_due > chunkdata.samplesPerSec) ) { + *output++ = l; + if ( stereo ) + *output++ = r; samples_due -= chunkdata.samplesPerSec; count--; - done++; + done++; } } - return TRUE; } bool initialise() { - if ( input == 0 ) - return FALSE; - - wavedata_remaining = -1; - - while ( wavedata_remaining == -1 ) { - // Keep reading chunks... - const int n = sizeof(chunk) - sizeof(chunk.data); - int t = input->readBlock( (char*)&chunk, n ); - if ( t != n ) { - if ( t == -1 ) - return FALSE; - return TRUE; - } - if ( qstrncmp(chunk.id,"data",4) == 0 ) { - samples = wavedata_remaining = chunk.size; - } else if ( qstrncmp(chunk.id,"RIFF",4) == 0 ) { - char d[4]; - if ( input->readBlock(d,4) != 4 ) { - return FALSE; - } - if ( qstrncmp(d,"WAVE",4) != 0 ) { - // skip - if ( chunk.size > 1000000000 || !input->at(input->at()+chunk.size-4) ) { - return FALSE; - } - } - } else if ( qstrncmp(chunk.id,"fmt ",4) == 0 ) { - if ( input->readBlock((char*)&chunkdata,sizeof(chunkdata)) != sizeof(chunkdata) ) { - return FALSE; - } + if ( input == 0 ) + return FALSE; + + wavedata_remaining = -1; + + while ( wavedata_remaining == -1 ) { + // Keep reading chunks... + const int n = sizeof(chunk) - sizeof(chunk.data); + int t = input->readBlock( (char*)&chunk, n ); + if ( t != n ) { + if ( t == -1 ) + return FALSE; + return TRUE; + } + if ( qstrncmp(chunk.id,"data",4) == 0 ) { + samples = wavedata_remaining = chunk.size; + } else if ( qstrncmp(chunk.id,"RIFF",4) == 0 ) { + char d[4]; + if ( input->readBlock(d,4) != 4 ) { + return FALSE; + } + if ( qstrncmp(d,"WAVE",4) != 0 ) { + // skip + if ( chunk.size > 1000000000 || !input->at(input->at()+chunk.size-4) ) { + return FALSE; + } + } + } else if ( qstrncmp(chunk.id,"fmt ",4) == 0 ) { + if ( input->readBlock((char*)&chunkdata,sizeof(chunkdata)) != sizeof(chunkdata) ) { + return FALSE; + } #define WAVE_FORMAT_PCM 1 - if ( chunkdata.formatTag != WAVE_FORMAT_PCM ) { - qDebug("WAV file: UNSUPPORTED FORMAT %d",chunkdata.formatTag); - return FALSE; - } - } else { - // ignored chunk - if ( chunk.size > 1000000000 || !input->at(input->at()+chunk.size) ) { - return FALSE; - } - } - } // while - - return TRUE; + if ( chunkdata.formatTag != WAVE_FORMAT_PCM ) { + qDebug("WAV file: UNSUPPORTED FORMAT %d",chunkdata.formatTag); + return FALSE; + } + } else { + // ignored chunk + if ( chunk.size > 1000000000 || !input->at(input->at()+chunk.size) ) { + return FALSE; + } + } + } // while + qDebug("bits %d", chunkdata.wBitsPerSample); + return TRUE; } // gets a sample from the file bool getSample(int& l, int& r) { - l = r = 0; - - if ( input == 0 ) - return FALSE; - - if ( (wavedata_remaining < 0) || !max ) - return FALSE; - - if ( out >= max ) { - max = input->readBlock( (char*)data, (uint)QMIN(sound_buffer_size,wavedata_remaining) ); - - wavedata_remaining -= max; - - out = 0; - if ( max <= 0 ) { - max = 0; - return TRUE; - } - } - if ( chunkdata.wBitsPerSample == 8 ) { - l = (data[out++] - 128) * 128; - } else { - l = ((short*)data)[out/2]; - out += 2; - } - if ( chunkdata.channels == 1 ) { - r = l; - } else { - if ( chunkdata.wBitsPerSample == 8 ) { - r = (data[out++] - 128) * 128; - } else { - r = ((short*)data)[out/2]; - out += 2; - } - } - return TRUE; + l = r = 0; + + if ( input == 0 ) + return FALSE; + + if ( (wavedata_remaining < 0) || !max ) + return FALSE; + + if ( out >= max ) { + max = input->readBlock( (char*)data, (uint)QMIN(sound_buffer_size,wavedata_remaining) ); + + wavedata_remaining -= max; + + out = 0; + if ( max <= 0 ) { + max = 0; + return TRUE; + } + } + if ( chunkdata.wBitsPerSample == 8 ) { + l = (data[out++] - 128) * 128; + } else { + l = ((short*)data)[out/2]; + out += 2; + } + if ( chunkdata.channels == 1 ) { + r = l; + } else { + if ( chunkdata.wBitsPerSample == 8 ) { + r = (data[out++] - 128) * 128; + } else { + r = ((short*)data)[out/2]; + out += 2; + } + } + return TRUE; } // getSample }; @@ -205,18 +207,18 @@ WavPlugin::~WavPlugin() { bool WavPlugin::isFileSupported( const QString& path ) { - debugMsg( "WavPlugin::isFileSupported" ); +// qDebug( "WavPlugin::isFileSupported" ); char *ext = strrchr( path.latin1(), '.' ); // Test file extension if ( ext ) { - if ( strncasecmp(ext, ".raw", 4) == 0 ) - return TRUE; - if ( strncasecmp(ext, ".wav", 4) == 0 ) - return TRUE; - if ( strncasecmp(ext, ".wave", 4) == 0 ) - return TRUE; + if ( strncasecmp(ext, ".raw", 4) == 0 ) + return TRUE; + if ( strncasecmp(ext, ".wav", 4) == 0 ) + return TRUE; + if ( strncasecmp(ext, ".wave", 4) == 0 ) + return TRUE; } return FALSE; @@ -224,7 +226,7 @@ bool WavPlugin::isFileSupported( const QString& path ) { bool WavPlugin::open( const QString& path ) { - debugMsg( "WavPlugin::open" ); +// qDebug( "WavPlugin::open" ); d->max = d->out = sound_buffer_size; d->wavedata_remaining = 0; @@ -232,10 +234,10 @@ bool WavPlugin::open( const QString& path ) { d->input = new QFile( path ); if ( d->input->open(IO_ReadOnly) == FALSE ) { - qDebug("couldn't open file"); - delete d->input; - d->input = 0; - return FALSE; + qDebug("couldn't open file"); + delete d->input; + d->input = 0; + return FALSE; } d->initialise(); @@ -245,7 +247,7 @@ bool WavPlugin::open( const QString& path ) { bool WavPlugin::close() { - debugMsg( "WavPlugin::close" ); +// qDebug( "WavPlugin::close" ); d->input->close(); delete d->input; @@ -255,44 +257,44 @@ bool WavPlugin::close() { bool WavPlugin::isOpen() { - debugMsg( "WavPlugin::isOpen" ); +// qDebug( "WavPlugin::isOpen" ); return ( d->input != 0 ); } int WavPlugin::audioStreams() { - debugMsg( "WavPlugin::audioStreams" ); +// qDebug( "WavPlugin::audioStreams" ); return 1; } int WavPlugin::audioChannels( int ) { - debugMsg( "WavPlugin::audioChannels" ); - return 2; // ### Always scale audio to stereo samples +// qDebug( "WavPlugin::audioChannels" ); + return d->chunkdata.channels;// 2; // ### Always scale audio to stereo samples } int WavPlugin::audioFrequency( int ) { - debugMsg( "WavPlugin::audioFrequency" ); - return 44100; // ### Always scale to frequency of 44100 +// qDebug( "WavPlugin::audioFrequency %d", d->chunkdata.samplesPerSec ); + return d->chunkdata.samplesPerSec; //44100; // ### Always scale to frequency of 44100 } int WavPlugin::audioSamples( int ) { - debugMsg( "WavPlugin::audioSamples" ); - return d->samples * 2 / d->chunkdata.channels; // ### Scaled samples will be made stereo, - // Therefore if source is mono we will double the number of samples +// qDebug( "WavPlugin::audioSamples" ); + return d->samples / d->chunkdata.channels/2; // ### Scaled samples will be made stereo, + // Therefore if source is mono we will double the number of samples } bool WavPlugin::audioSetSample( long, int ) { - debugMsg( "WavPlugin::audioSetSample" ); +// qDebug( "WavPlugin::audioSetSample" ); return FALSE; } long WavPlugin::audioGetSample( int ) { - debugMsg( "WavPlugin::audioGetSample" ); +// qDebug( "WavPlugin::audioGetSample" ); return 0; } @@ -322,13 +324,18 @@ bool WavPlugin::audioReadStereoSamples( short *output, long samples, long& sampl */ bool WavPlugin::audioReadSamples( short *output, int channels, long samples, long& samplesMade, int ) { - debugMsg( "WavPlugin::audioReadSamples" ); +// qDebug( "WavPlugin::audioReadSamples" ); return d->add( output, samples, samplesMade, channels != 1 ); } double WavPlugin::getTime() { - debugMsg( "WavPlugin::getTime" ); +// qDebug( "WavPlugin::getTime" ); return 0.0; } +int WavPlugin::audioBitsPerSample( int ) { +// qDebug( "WavPlugin::audioFormat %d", d->chunkdata.wBitsPerSample ); + return d->chunkdata.wBitsPerSample; // +} + -- cgit v0.9.0.2