fixed to segfault in connection to shoutcast

1 files changed, 8 insertions, 2 deletions

diff --git a/core/multimedia/opieplayer/libmad/libmadplugin.cpp b/core/multimedia/opieplayer/libmad/libmadplugin.cpp
index 8b692ef..c744c6d 100644
--- a/core/multimedia/opieplayer/libmad/libmadplugin.cpp
+++ b/core/multimedia/opieplayer/libmad/libmadplugin.cpp
@@ -54,779 +54,785 @@
 #endif
 #include "libmadplugin.h"
 
 
 extern "C" {
 #include "mad.h"
 }
 
 
 #define MPEG_BUFFER_SIZE    65536
 //#define MPEG_BUFFER_SIZE    32768 //16384 // 8192
 //#define debugMsg(a)     qDebug(a)
 #define debugMsg(a)
 
 
 class Input {
 public:
     char const *path;
     int fd;
 #if defined(HAVE_MMAP)
     void *fdm;
 #endif
     unsigned char *data;
     unsigned long length;
     int eof;
 };
 
 
 class Output {
 public:
     mad_fixed_t attenuate;
     struct filter *filters;
     unsigned int channels_in;
     unsigned int channels_out;
     unsigned int speed_in;
     unsigned int speed_out;
     const char *path;
 };
 
 
 # if defined(HAVE_MMAP)
 static void *map_file(int fd, unsigned long *length)
 {
   void *fdm;
 
   *length += MAD_BUFFER_GUARD;
 
   fdm = mmap(0, *length, PROT_READ, MAP_SHARED, fd, 0);
   if (fdm == MAP_FAILED)
     return 0;
 
 # if defined(HAVE_MADVISE)
   madvise(fdm, *length, MADV_SEQUENTIAL);
 # endif
 
   return fdm;
 }
 
 
 static int unmap_file(void *fdm, unsigned long length)
 {
   if (munmap(fdm, length) == -1)
     return -1;
 
   return 0;
 }
 # endif
 
 
 static inline QString tr( const char *str ) {
     // Apparently this is okay from a plugin as it runs in the process space of the owner of the plugin
     return qApp->translate( "OpiePlayer", str, "libmad strings for mp3 file info" );
 }
 
 
 class LibMadPluginData {
 public:
     Input input;
     Output output;
     int bad_last_frame;
     struct mad_stream stream;
     struct mad_frame frame;
     struct mad_synth synth;
     bool flush;
 };
 
 
 LibMadPlugin::LibMadPlugin() {
     d = new LibMadPluginData;
     d->input.fd = 0;
 #if defined(HAVE_MMAP)
     d->input.fdm = 0;
 #endif
     d->input.data = 0;
     d->flush = TRUE;
     info = tr( "No Song Open" );
 }
 
 
 LibMadPlugin::~LibMadPlugin() {
     close();
     delete d;
 }
 
 
 bool LibMadPlugin::isFileSupported( const QString& path ) {
     debugMsg( "LibMadPlugin::isFileSupported" );
 
     // Mpeg file extensions
     //  "mp2","mp3","m1v","m2v","m2s","mpg","vob","mpeg","ac3"
     // Other media extensions
     //  "wav","mid","mod","s3m","ogg","avi","mov","sid"
 
     char *ext = strrchr( path.latin1(), '.' );
 
     // Test file extension
     if ( ext ) {
         if ( strncasecmp(ext, ".mp2", 4) == 0 )
             return TRUE;
         if ( strncasecmp(ext, ".mp3", 4) == 0 )
             return TRUE;
     }
 
     // UGLY - just for fast testing
     if ( path.left(4) == "http") {
         return TRUE;
     }
 
    return FALSE;
 }
 
 
 
 int LibMadPlugin::is_address_multicast(unsigned long address) {
     if ((address & 255) >= 224 && (address & 255) <= 239)
         return (1);
     return (0);
 }
 
 
 int LibMadPlugin::udp_open(char *address, int port) {
 
     int enable = 1L;
     struct sockaddr_in stAddr;
     struct sockaddr_in stLclAddr;
     struct ip_mreq stMreq;
     struct hostent *host;
     int sock;
 
     stAddr.sin_family = AF_INET;
     stAddr.sin_port = htons(port);
 
     if ((host = gethostbyname(address)) == NULL) {
         return (0);
     }
 
     stAddr.sin_addr = *((struct in_addr *)host->h_addr_list[0]);
 
     /* Create a UDP socket */
     if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
         return (0);
     }
 
     /* Allow multiple instance of the client to share the same address and port */
     if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&enable, sizeof(unsigned long int)) < 0) {
         return (0);
     }
 
     /* If the address is multicast, register to the multicast group */
     if (is_address_multicast(stAddr.sin_addr.s_addr)) {
         /* Bind the socket to port */
         stLclAddr.sin_family = AF_INET;
         stLclAddr.sin_addr.s_addr = htonl(INADDR_ANY);
         stLclAddr.sin_port = stAddr.sin_port;
         if (bind(sock, (struct sockaddr *)&stLclAddr, sizeof(stLclAddr)) < 0) {
             return (0);
         }
 
         /* Register to a multicast address */
         stMreq.imr_multiaddr.s_addr = stAddr.sin_addr.s_addr;
         stMreq.imr_interface.s_addr = INADDR_ANY;
         if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char *)&stMreq, sizeof(stMreq)) < 0) {
             return (0);
         }
     } else {
         /* Bind the socket to port */
         stLclAddr.sin_family = AF_INET;
         stLclAddr.sin_addr.s_addr = htonl(INADDR_ANY);
         stLclAddr.sin_port = htons(0);
         if (bind(sock, (struct sockaddr *)&stLclAddr, sizeof(stLclAddr)) < 0) {
             return (0);
         }
     }
     return (sock);
 }
 
 int LibMadPlugin::tcp_open(char *address, int port) {
     struct sockaddr_in stAddr;
     struct hostent *host;
     int sock;
     struct linger l;
 
     memset(&stAddr, 0, sizeof(stAddr));
     stAddr.sin_family = AF_INET;
     stAddr.sin_port = htons(port);
 
     if ((host = gethostbyname(address)) == NULL) {
         return (0);
     }
 
     stAddr.sin_addr = *((struct in_addr *)host->h_addr_list[0]);
 
     if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
         return (0);
     }
 
     l.l_onoff = 1;
     l.l_linger = 5;
     if (setsockopt(sock, SOL_SOCKET, SO_LINGER, (char *)&l, sizeof(l)) < 0) {
         return (0);
     }
 
     if (connect(sock, (struct sockaddr *)&stAddr, sizeof(stAddr)) < 0) {
         return (0);
     }
 
     return (sock);
 }
 
 
 /**
  * Read a http line header.
  * This function read character by character.
  * @param tcp_sock the socket use to read the stream
  * @param buf a buffer to receive the data
  * @param size size of the buffer
  * @return the size of the stream read or -1 if an error occured
  */
 int LibMadPlugin::http_read_line(int tcp_sock, char *buf, int size) {
     int offset = 0;
 
     do {
         if (std::read(tcp_sock, buf + offset, 1) < 0)
             return -1;
         if (buf[offset] != '\r')    /* Strip \r from answer */
             offset++;
     } while (offset < size - 1 && buf[offset - 1] != '\n');
 
     buf[offset] = 0;
     return offset;
 }
 
 int LibMadPlugin::http_open(const QString& path ) {
     char *host;
     int port;
     char *request;
     int tcp_sock;
     char http_request[PATH_MAX];
     char filename[PATH_MAX];
     //char c;
     char *arg =strdup(path.latin1());
 
     /* Check for URL syntax */
     if (strncmp(arg, "http://", strlen("http://"))) {
         return (0);
     }
 
     /* Parse URL */
     port = 80;
     host = arg + strlen("http://");
     if ((request = strchr(host, '/')) == NULL) {
         return (0);
     }
 
     *request++ = 0;
 
     if (strchr(host, ':') != NULL) { /* port is specified */
         port = atoi(strchr(host, ':') + 1);
         *strchr(host, ':') = 0;
     }
 
     /* Open a TCP socket */
     if (!(tcp_sock = tcp_open(host, port))) {
         perror("http_open");
         return (0);
     }
 
     snprintf(filename, sizeof(filename) - strlen(host) - 75, "%s", request);
 
     /* Send HTTP GET request */
     /* Please don't use a Agent know by shoutcast (Lynx, Mozilla) seems to be reconized and print
      * a html page and not the stream */
     snprintf(http_request, sizeof(http_request), "GET /%s HTTP/1.0\r\n"
     /*  "User-Agent: Mozilla/2.0 (Win95; I)\r\n" */
         "Pragma: no-cache\r\n" "Host: %s\r\n" "Accept: */*\r\n" "\r\n", filename, host);
 
     send(tcp_sock, http_request, strlen(http_request), 0);
 
     /* Parse server reply */
 #if 0
     do
         read(tcp_sock, &c, sizeof(char));
     while (c != ' ');
     read(tcp_sock, http_request, 4 * sizeof(char));
     http_request[4] = 0;
     if (strcmp(http_request, "200 "))     {
         fprintf(stderr, "http_open: ");
         do {
             read(tcp_sock, &c, sizeof(char));
             fprintf(stderr, "%c", c);
         } while (c != '\r');
         fprintf(stderr, "\n");
         return (0);
     }
 #endif
 
     QString name;
     QString genre;
     QString bitrate;
     QString url;
     QString message = tr("Info: ");
     do {
 
         int len;
 
         len = http_read_line(tcp_sock, http_request, sizeof(http_request));
 
         if (len == -1) {
             qDebug( "http_open: "+ QString(strerror(errno)) +"\n");
             return 0;
         }
 
         if (QString(http_request).left(9) == "Location:") {
             /* redirect */
             std::close(tcp_sock);
             http_request[strlen(http_request) - 1] = '\0';
             return http_open(&http_request[10]);
         }
 
         if (QString(http_request).left(4) == "ICY ") {
             /* This is shoutcast/icecast streaming */
             if (strncmp(http_request + 4, "200 ", 4)) {
                 qDebug("http_open: " + QString(http_request) + "\n");
                 return 0;
             }
         } else if (QString(http_request).left(4) == "icy-") {
             /* we can have: icy-noticeX, icy-name, icy-genre, icy-url, icy-pub, icy-metaint, icy-br */
             if ( QString( http_request ).left( 8 ) == "icy-name" ) {
                 name = tr("Name: ") + QString(http_request).mid(9, (QString(http_request).length())- 9 );
             } else if ( QString( http_request ).left( 9 ) == "icy-genre" ) {
                 genre = tr("Genre: ") + QString(http_request).mid(10, (QString(http_request).length())-10 );
             } else if ( QString( http_request ).left( 6 ) == "icy-br" ) {
                 bitrate = tr("Bitrate: ") + QString(http_request).mid(7, (QString(http_request).length())- 7 );
             } else if ( QString( http_request ).left( 7 ) == "icy-url" ) {
                 url = tr("URL: ") + QString(http_request).mid(8, (QString(http_request).length())- 8 );
             }  else if ( QString( http_request ).left( 10 ) == "icy-notice" ) {
                 message += QString(http_request).mid(11, QString(http_request).length()-11 ) ;
             }
         }
     } while (strcmp(http_request, "\n") != 0);
 
     info = QString(name + genre + url + bitrate + message).replace( QRegExp("\n"), " : " );
 
     qDebug("Stream info: " + info);
 
     return (tcp_sock);
 }
 
 
 
 bool LibMadPlugin::open( const QString& path ) {
     debugMsg( "LibMadPlugin::open" );
     Config cfg("MediaPlayer");
     cfg.setGroup("Options");
     bufferSize = cfg.readNumEntry("MPeg_BufferSize",MPEG_BUFFER_SIZE);
     qDebug("buffer size is %d", bufferSize);
     d->bad_last_frame = 0;
     d->flush = TRUE;
     info = QString( "" );
 
     //qDebug( "Opening %s", path.latin1() );
 
 
     if (path.left( 4 ) == "http" ) {
+        qDebug("Test2");
         // in case of any error we get 0 here
-        if ( !(http_open(path)==0) ) {
+        if ( !(http_open(path) == 0) ) {
+            qDebug("Test3");
             d->input.fd = http_open(path);
+        } else {
+            qDebug("Test5");
+            return FALSE;
         }
     } else {
+        qDebug("Test4");
         d->input.path = path.latin1();
         d->input.fd = ::open( d->input.path, O_RDONLY );
         // thats a better place, since it should only seek for ID3 tags on mp3 files, not streams
         printID3Tags();
     }
     if (d->input.fd == -1) {
-//        qDebug("error opening %s", d->input.path );
+        qDebug("error opening %s", d->input.path );
   return FALSE;
     }
 
 //    printID3Tags();
 
 #if defined(HAVE_MMAP)
     struct stat stat;
     if (fstat(d->input.fd, &stat) == -1) {
         //qDebug("error calling fstat"); return FALSE;
     }
     if (S_ISREG(stat.st_mode) && stat.st_size > 0) {
         d->input.length = stat.st_size;
         d->input.fdm = map_file(d->input.fd, &d->input.length);
         if (d->input.fdm == 0) {
             qDebug("error mmapping file"); return FALSE;
         }
         d->input.data = (unsigned char *)d->input.fdm;
     }
 #endif
 
     if (d->input.data == 0) {
         d->input.data = (unsigned char *)malloc( bufferSize /*MPEG_BUFFER_SIZE*/);
         if (d->input.data == 0) {
             qDebug("error allocating input buffer");
             return FALSE;
         }
         d->input.length = 0;
     }
 
     d->input.eof = 0;
 
     mad_stream_init(&d->stream);
     mad_frame_init(&d->frame);
     mad_synth_init(&d->synth);
 
     return TRUE;
 }
 
 
 bool LibMadPlugin::close() {
     debugMsg( "LibMadPlugin::close" );
 
     int result = TRUE;
 
     mad_synth_finish(&d->synth);
     mad_frame_finish(&d->frame);
     mad_stream_finish(&d->stream);
 
 #if defined(HAVE_MMAP)
     if (d->input.fdm) {
         if (unmap_file(d->input.fdm, d->input.length) == -1) {
             qDebug("error munmapping file");
             result = FALSE;
         }
         d->input.fdm  = 0;
         d->input.data = 0;
     }
 #endif
 
     if (d->input.data) {
         free(d->input.data);
         d->input.data = 0;
     }
 
     if (::close(d->input.fd) == -1) {
         qDebug("error closing file %s", d->input.path);
         result = FALSE;
     }
 
     d->input.fd = 0;
 
     return result;
 }
 
 
 bool LibMadPlugin::isOpen() {
     debugMsg( "LibMadPlugin::isOpen" );
     return ( d->input.fd != 0 );
 }
 
 
 int LibMadPlugin::audioStreams() {
     debugMsg( "LibMadPlugin::audioStreams" );
     return 1;
 }
 
 
 int LibMadPlugin::audioChannels( int ) {
     debugMsg( "LibMadPlugin::audioChannels" );
 /*
   long t; short t1[5]; audioReadSamples( t1, 2, 1, t, 0 );
   qDebug( "LibMadPlugin::audioChannels: %i", d->frame.header.mode > 0 ? 2 : 1 );
   return d->frame.header.mode > 0 ? 2 : 1;
 */
     return 2;
 }
 
 
 int LibMadPlugin::audioFrequency( int ) {
     debugMsg( "LibMadPlugin::audioFrequency" );
     long t; short t1[5]; audioReadSamples( t1, 2, 1, t, 0 );
     qDebug( "LibMadPlugin::audioFrequency: %i", d->frame.header.samplerate );
     return d->frame.header.samplerate;
 }
 
 
 int LibMadPlugin::audioSamples( int ) {
     debugMsg( "LibMadPlugin::audioSamples" );
 
   //   long t; short t1[5]; audioReadSamples( t1, 2, 1, t, 0 );
 //     mad_header_decode( (struct mad_header *)&d->frame.header, &d->stream );
 //     qDebug( "LibMadPlugin::audioSamples: %i*%i", d->frame.header.duration.seconds, d->frame.header.samplerate );
 //     return d->frame.header.duration.seconds * d->frame.header.samplerate;
 
     return 10000000;
 }
 
 
 bool LibMadPlugin::audioSetSample( long, int ) {
     debugMsg( "LibMadPlugin::audioSetSample" );
     return FALSE;
 }
 
 
 long LibMadPlugin::audioGetSample( int ) {
     debugMsg( "LibMadPlugin::audioGetSample" );
     return 0;
 }
 
 /*
 bool LibMadPlugin::audioReadSamples( short *, int, long, int ) {
 debugMsg( "LibMadPlugin::audioReadSamples" );
 return FALSE;
 }
 
 
 bool LibMadPlugin::audioReReadSamples( short *, int, long, int ) {
 debugMsg( "LibMadPlugin::audioReReadSamples" );
     return FALSE;
     }
 */
 
 bool LibMadPlugin::read() {
     debugMsg( "LibMadPlugin::read" );
     int len;
 
       if (d->input.eof)
   return FALSE;
 
 #if defined(HAVE_MMAP)
       if (d->input.fdm) {
           unsigned long skip = 0;
 
           if (d->stream.next_frame) {
               struct stat stat;
 
               if (fstat(d->input.fd, &stat) == -1)
                   return FALSE;
 
               if (stat.st_size + MAD_BUFFER_GUARD <= (signed)d->input.length)
                   return FALSE;
 
               // file size changed; update memory map
               skip = d->stream.next_frame - d->input.data;
 
               if (unmap_file(d->input.fdm, d->input.length) == -1) {
                   d->input.fdm  = 0;
                   d->input.data = 0;
                   return FALSE;
               }
 
               d->input.length = stat.st_size;
 
               d->input.fdm = map_file(d->input.fd, &d->input.length);
               if (d->input.fdm == 0) {
                   d->input.data = 0;
                   return FALSE;
               }
 
               d->input.data = (unsigned char *)d->input.fdm;
           }
 
           mad_stream_buffer(&d->stream, d->input.data + skip, d->input.length - skip);
 
       } else
 #endif
       {
           if (d->stream.next_frame) {
               memmove(d->input.data, d->stream.next_frame,
                       d->input.length = &d->input.data[d->input.length] - d->stream.next_frame);
           }
 
           do {
               len = ::read(d->input.fd, d->input.data + d->input.length, bufferSize /* MPEG_BUFFER_SIZE*/ - d->input.length);
           }
           while (len == -1 && errno == EINTR);
 
           if (len == -1) {
               qDebug("error reading audio");
               return FALSE;
           }
           else if (len == 0) {
               d->input.eof = 1;
 
               assert(bufferSize /*MPEG_BUFFER_SIZE*/ - d->input.length >= MAD_BUFFER_GUARD);
 
               while (len < MAD_BUFFER_GUARD)
                   d->input.data[d->input.length + len++] = 0;
           }
 
           mad_stream_buffer(&d->stream, d->input.data, d->input.length += len);
       }
 
       return TRUE;
 }
 
 
 static mad_fixed_t left_err, right_err;
 static const int bits = 16;
 static const int shift = MAD_F_FRACBITS + 1 - bits;
 
 
 inline long audio_linear_dither( mad_fixed_t sample, mad_fixed_t& error ) {
     sample += error;
     mad_fixed_t quantized = (sample >= MAD_F_ONE) ? MAD_F_ONE - 1 : ( (sample < -MAD_F_ONE) ? -MAD_F_ONE : sample );
     quantized &= ~((1L << shift) - 1);
     error = sample - quantized;
     return quantized >> shift;
 }
 
 
 inline void audio_pcm( short *data, unsigned int nsamples, mad_fixed_t *left, mad_fixed_t *right ) {
     if ( right ) {
         while (nsamples--) {
             data[0] = audio_linear_dither( *left++,  left_err );
             data[1] = audio_linear_dither( *right++, right_err );
             data += 2;
         }
     } else {
         while (nsamples--) {
             data[0] = data[1] = audio_linear_dither( *left++,  left_err );
             data += 2;
         }
     }
 }
 
 
 bool LibMadPlugin::decode( short *output, long samples, long& samplesMade ) {
     debugMsg( "LibMadPlugin::decode" );
 
     static int buffered = 0;
     static mad_fixed_t buffer[2][65536 * 2];
     int offset = buffered;
     samplesMade = 0;
 
     static int maxBuffered = 8000; // 65536;
 
     if ( samples > maxBuffered ) {
         samples = maxBuffered;
     }
 
     if ( d->flush ) {
         buffered = 0;
         offset = 0;
         d->flush = FALSE;
     }
 
     while ( buffered < maxBuffered ) {
 
         while (mad_frame_decode(&d->frame, &d->stream) == -1) {
             if (!MAD_RECOVERABLE(d->stream.error)) {
                 debugMsg( "feed me" );
                 return FALSE; // Feed me
             }
             if ( d->stream.error == MAD_ERROR_BADCRC ) {
                 mad_frame_mute(&d->frame);
                 qDebug( "error decoding, bad crc" );
             }
         }
 
         mad_synth_frame(&d->synth, &d->frame);
         int decodedSamples = d->synth.pcm.length;
         memcpy( &(buffer[0][offset]), d->synth.pcm.samples[0], decodedSamples * sizeof(mad_fixed_t) );
         if ( d->synth.pcm.channels == 2 )
             memcpy( &(buffer[1][offset]), d->synth.pcm.samples[1], decodedSamples * sizeof(mad_fixed_t) );
         offset += decodedSamples;
         buffered += decodedSamples;
     }
 
 //qApp->processEvents();
     audio_pcm( output, samples, buffer[0], (d->synth.pcm.channels == 2) ? buffer[1] : 0 );
 //    audio_pcm( output, samples, buffer[1], buffer[0] );
 //    audio_pcm( output, samples, buffer[0], buffer[1] );
     samplesMade = samples;
     memmove( buffer[0], &(buffer[0][samples]), (buffered - samples) * sizeof(mad_fixed_t) );
     if ( d->synth.pcm.channels == 2 ) {
         memmove( buffer[1], &(buffer[1][samples]), (buffered - samples) * sizeof(mad_fixed_t) );
     }
     buffered -= samples;
 
     return TRUE;
 }
 
 /*bool LibMadPlugin::audioReadStereoSamples( short *output, long samples, long& samplesMade, int ) {
 */
 bool LibMadPlugin::audioReadSamples( short *output, int /*channels*/, long samples, long& samplesMade, int ) {
     debugMsg( "LibMadPlugin::audioReadStereoSamples" );
 
     static bool needInput = TRUE;
 
     if ( samples == 0 )
         return FALSE;
 
     do {
         if ( needInput )
             if ( !read() ) {
                 return FALSE;
             }
 
         needInput = FALSE;
 
         if ( decode( output, samples, samplesMade ) )
             return TRUE;
         else
             needInput = TRUE;
     }
     while ( ( samplesMade < samples ) && ( !d->input.eof ) );
 
     return FALSE;
 }
 
 
 double LibMadPlugin::getTime() {
     debugMsg( "LibMadPlugin::getTime" );
     return 0.0;
 }
 
 
 void LibMadPlugin::printID3Tags() {
     qDebug( "LibMadPlugin::printID3Tags" );
 
     char id3v1[128 + 1];
 
     if ( ::lseek( d->input.fd, -128, SEEK_END ) == -1 ) {
         qDebug( "error seeking to id3 tags" );
         return;
     }
 
     if ( ::read( d->input.fd, id3v1, 128 ) != 128 ) {
         qDebug( "error reading in id3 tags" );
         return;
     }
 
     if ( ::strncmp( (const char *)id3v1, "TAG", 3 ) != 0 ) {
         debugMsg( "sorry, no id3 tags" );
     } else {
         int len[5] = { 30, 30, 30, 4, 30 };
         QString label[5] = { tr( "Title" ), tr( "Artist" ), tr( "Album" ), tr( "Year" ), tr( "Comment" ) };
         char *ptr = id3v1 + 3, *ptr2 = ptr + len[0];
         qDebug( "ID3 tags in file:" );
         info = "";
         for ( int i = 0; i < 5; ptr += len[i], i++, ptr2 += len[i] ) {
             char push = *ptr2;
             *ptr2 = '\0';
             char *ptr3 = ptr2;
             while ( ptr3-1 >= ptr && isspace(ptr3[-1]) ) ptr3--;
             char push2 = *ptr3; *ptr3 = '\0';
             if ( strcmp( ptr, "" ) )
                 info += ( i != 0 ? ", " : "" ) + label[i] + ": " + ptr;
             //qDebug( info.latin1() );
             *ptr3 = push2;
             *ptr2 = push;
         }
         if (id3v1[126] == 0 && id3v1[127] != 0)
             info += tr( ", Track: " ) + id3v1[127];
     }
 
     if ( ::lseek(d->input.fd, 0, SEEK_SET) == -1 ) {
         qDebug( "error seeking back to beginning" );
         return;
     }
 }