Diffstat (limited to 'noncore/multimedia/opierec/wavFile.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | noncore/multimedia/opierec/wavFile.cpp | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/noncore/multimedia/opierec/wavFile.cpp b/noncore/multimedia/opierec/wavFile.cpp new file mode 100644 index 0000000..09695aa --- a/dev/null +++ b/noncore/multimedia/opierec/wavFile.cpp @@ -0,0 +1,303 @@ +//wavFile.cpp +#include "wavFile.h" +#include "qtrec.h" + +#include <qdatetime.h> +#include <qstring.h> +#include <qmessagebox.h> +#include <qdir.h> + +#include <qpe/timestring.h> +#include <qpe/config.h> + +#include <errno.h> + +#include <sys/time.h> +#include <sys/types.h> +#include <sys/vfs.h> + +#include <fcntl.h> +#include <math.h> +#include <mntent.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +WavFile::WavFile( QObject * parent,const QString &fileName, bool makeNwFile, int sampleRate, + int channels, int resolution, int format ) + : QObject( parent) +{ +qDebug("new wave file"); + bool b = makeNwFile; + wavSampleRate=sampleRate; + wavFormat=format; + wavChannels=channels; + wavResolution=resolution; + useTmpFile=false; + if( b) { + newFile(); + } else { + openFile(fileName); + } +} + +bool WavFile::newFile() { + + qDebug("Set up new file"); + Config cfg("QpeRec"); + cfg.setGroup("Settings"); + + currentFileName=cfg.readEntry("directory",QDir::homeDirPath()); + QString date; + date = TimeString::dateString( QDateTime::currentDateTime(),false,true); + date.replace(QRegExp("'"),""); + date.replace(QRegExp(" "),"_"); + date.replace(QRegExp(":"),"."); + date.replace(QRegExp(","),""); + + QString currentFile=date; + if(currentFileName.right(1).find("/",0,true) == -1) + currentFileName += "/" + date; + else + currentFileName += date; + currentFileName+=".wav"; + + qDebug("set up file for recording: "+currentFileName); + char *pointer; + + if( currentFileName.find("/mnt",0,true) == -1 + && currentFileName.find("/tmp",0,true) == -1 ) { + // if destination file is most likely in flash (assuming jffs2) + // we have to write to a different filesystem first + + useTmpFile = true; + pointer=tmpnam(NULL); + qDebug("Opening tmp file %s",pointer); + track.setName( pointer); + + } else { //just use regular file.. no moving + + useTmpFile = false; + track.setName( currentFileName); + } + if(!track.open( IO_ReadWrite | IO_Truncate)) { + QString errorMsg=(QString)strerror(errno); + qDebug(errorMsg); + QMessageBox::message("Note", "Error opening file.\n" +errorMsg); + + return false; + } else { + setWavHeader( track.handle() , &hdr); + } +return true; +} + +WavFile::~WavFile() { + + closeFile(); +} + +void WavFile::closeFile() { + if(track.isOpen()) + track.close(); +} + +int WavFile::openFile(const QString ¤tFileName) { + qDebug("open play file "+currentFileName); + closeFile(); + + track.setName(currentFileName); + + if(!track.open(IO_ReadOnly)) { + QString errorMsg=(QString)strerror(errno); + qDebug("<<<<<<<<<<< "+errorMsg+currentFileName); + QMessageBox::message("Note", "Error opening file.\n" +errorMsg); + return -1; + } else { + parseWavHeader( track.handle()); + } + return track.handle(); +} + +bool WavFile::setWavHeader(int fd, wavhdr *hdr) { + + strncpy((*hdr).riffID, "RIFF", 4); // RIFF + strncpy((*hdr).wavID, "WAVE", 4); //WAVE + strncpy((*hdr).fmtID, "fmt ", 4); // fmt + (*hdr).fmtLen = 16; // format length = 16 + + if( wavFormat == WAVE_FORMAT_PCM) { + (*hdr).fmtTag = 1; // PCM + qDebug("set header WAVE_FORMAT_PCM"); + } + else { + (*hdr).fmtTag = WAVE_FORMAT_DVI_ADPCM; //intel ADPCM + qDebug("set header WAVE_FORMAT_DVI_ADPCM"); + } + + // (*hdr).nChannels = 1;//filePara.channels;// ? 2 : 1*/; // channels + (*hdr).nChannels = wavChannels;// ? 2 : 1*/; // channels + + (*hdr).sampleRate = wavSampleRate; //samples per second + (*hdr).avgBytesPerSec = (wavSampleRate)*( wavChannels*(wavResolution/8)); // bytes per second + (*hdr).nBlockAlign = wavChannels*( wavResolution/8); //block align + (*hdr).bitsPerSample = wavResolution; //bits per sample 8, or 16 + + strncpy((*hdr).dataID, "data", 4); + + write( fd,hdr, sizeof(*hdr)); + qDebug("writing header: bitrate%d, samplerate %d, channels %d", + wavResolution, wavSampleRate, wavChannels); + return true; +} + +bool WavFile::adjustHeaders(int fd, int total) { + lseek(fd, 4, SEEK_SET); + int i = total + 36; + write( fd, &i, sizeof(i)); + lseek( fd, 40, SEEK_SET); + write( fd, &total, sizeof(total)); + qDebug("adjusting header %d", total); + return true; +} + +int WavFile::parseWavHeader(int fd) { + qDebug("Parsing wav header"); + char string[4]; + int found; + short fmt; + unsigned short ch, bitrate; + unsigned long samplerrate, longdata; + + if (read(fd, string, 4) < 4) { + qDebug(" Could not read from sound file.\n"); + return -1; + } + if (strncmp(string, "RIFF", 4)) { + qDebug(" not a valid WAV file.\n"); + return -1; + } + lseek(fd, 4, SEEK_CUR); + if (read(fd, string, 4) < 4) { + qDebug("Could not read from sound file.\n"); + return -1; + } + if (strncmp(string, "WAVE", 4)) { + qDebug("not a valid WAV file.\n"); + return -1; + } + found = 0; + + while (!found) { + if (read(fd, string, 4) < 4) { + qDebug("Could not read from sound file.\n"); + return -1; + } + if (strncmp(string, "fmt ", 4)) { + if (read(fd, &longdata, 4) < 4) { + qDebug("Could not read from sound file.\n"); + return -1; + } + lseek(fd, longdata, SEEK_CUR); + } else { + lseek(fd, 4, SEEK_CUR); + if (read(fd, &fmt, 2) < 2) { + qDebug("Could not read format chunk.\n"); + return -1; + } + if (fmt != WAVE_FORMAT_PCM && fmt != WAVE_FORMAT_DVI_ADPCM) { + qDebug("Wave file contains unknown format." + " Unable to continue.\n"); + return -1; + } + wavFormat = fmt; + // compressionFormat=fmt; + qDebug("compressionFormat is %d", fmt); + if (read(fd, &ch, 2) < 2) { + qDebug("Could not read format chunk.\n"); + return -1; + } else { + wavChannels = ch; + qDebug("File has %d channels", ch); + } + if (read(fd, &samplerrate, 4) < 4) { + qDebug("Could not read from format chunk.\n"); + return -1; + } else { + wavSampleRate = samplerrate; + // sampleRate = samplerrate; + qDebug("File has samplerate of %d",(int) samplerrate); + } + lseek(fd, 6, SEEK_CUR); + if (read(fd, &bitrate, 2) < 2) { + qDebug("Could not read format chunk.\n"); + return -1; + } else { + wavResolution=bitrate; + // resolution = bitrate; + qDebug("File has bitrate of %d", bitrate); + } + found++; + } + } + found = 0; + while (!found) { + if (read(fd, string, 4) < 4) { + qDebug("Could not read from sound file.\n"); + return -1; + } + + if (strncmp(string, "data", 4)) { + if (read(fd, &longdata, 4)<4) { + qDebug("Could not read from sound file.\n"); + return -1; + } + + lseek(fd, longdata, SEEK_CUR); + } else { + if (read(fd, &longdata, 4) < 4) { + qDebug("Could not read from sound file.\n"); + return -1; + } else { + wavNumberSamples = longdata; + qDebug("file has length of %d \nlasting %d seconds", longdata, + (( longdata / wavSampleRate) / wavChannels) / ( wavChannels*( wavResolution/8)) ); +// wavSeconds = (( longdata / wavSampleRate) / wavChannels) / ( wavChannels*( wavResolution/8)); + + return longdata; + } + } + } + + lseek(fd, 0, SEEK_SET); + + return 0; +} + +QString WavFile::trackName() { + return track.name(); +} + +int WavFile::wavHandle(){ + return track.handle(); +} + +int WavFile::getFormat() { +return wavFormat; +} + +int WavFile::getResolution() { +return wavResolution; +} + +int WavFile::getSampleRate() { +return wavSampleRate; +} + +int WavFile::getNumberSamples() { +return wavNumberSamples; +} + +bool WavFile::isTempFile() { +return useTmpFile; +} |