add proper number of samples reporting

1 files changed, 43 insertions, 9 deletions

diff --git a/core/multimedia/opieplayer/libmad/libmadplugin.cpp b/core/multimedia/opieplayer/libmad/libmadplugin.cpp
index 9a1ab2a..9d1ff8c 100644
--- a/core/multimedia/opieplayer/libmad/libmadplugin.cpp
+++ b/core/multimedia/opieplayer/libmad/libmadplugin.cpp
@@ -1,174 +1,175 @@
 /**********************************************************************
 ** Copyright (C) 2001 Trolltech AS.  All rights reserved.
 **
 ** This file is part of Qtopia Environment.
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
 **
 ** Contact info@trolltech.com if any conditions of this licensing are
 ** not clear to you.
 **
 **********************************************************************/
 // largly modified by Maximilian Reiss <max.reiss@gmx.de>
 
 #include <stdio.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <string.h>
 #include <ctype.h>
 #include <errno.h>
 #include <time.h>
 #include <locale.h>
 #include <math.h>
 #include <assert.h>
 
 #include <qapplication.h>
 #include <qmessagebox.h>
 #include <qregexp.h>
 
 #include <qpe/config.h>
 
 // for network handling
 #include <netinet/in.h>
 #include <netdb.h>
 #include <linux/limits.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>
 #include <unistd.h>
 
 
 //#define HAVE_MMAP
 
 #if defined(HAVE_MMAP)
 #   include <sys/mman.h>
 #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 fileLength;
+   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;
@@ -360,307 +361,340 @@ int LibMadPlugin::http_open(const QString& path ) {
     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 */
             ::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("OpiePlayer");
     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" ) {
         // in case of any error we get 0 here
         if ( !(http_open(path) == 0) ) {
             d->input.fd = http_open(path);
         } else {
             return FALSE;
         }
     } else {
         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 );
         return FALSE;
     }
 
-#if defined(HAVE_MMAP)
     struct stat stat;
     if (fstat(d->input.fd, &stat) == -1) {
-        //qDebug("error calling fstat"); return FALSE;
+    qDebug("error calling fstat"); return FALSE;
     }
+    if (S_ISREG(stat.st_mode) && stat.st_size > 0)
+  d->input.fileLength = stat.st_size;
+    else
+  d->input.fileLength = 0;
+    
+#if defined(HAVE_MMAP)
     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" );
+   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;
+*/
+   if ( d->frame.header.bitrate == 0 )
+      return 0;
+   int samples = (d->input.fileLength / (d->frame.header.bitrate/8)) * d->frame.header.samplerate;
+
+   qDebug( "LibMadPlugin::audioSamples: %i * %i * 8 / %i", (int)d->input.fileLength,
+           (int)d->frame.header.samplerate, (int)d->frame.header.bitrate ); 
+   qDebug( "LibMadPlugin::audioSamples: %i", samples );
 
-  //   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 samples;
 
-    return 10000000;
+//    return 10000000;
 }
 
 
 bool LibMadPlugin::audioSetSample( long, int ) {
     debugMsg( "LibMadPlugin::audioSetSample" );
+
+//     long totalSamples = audioSamples(0);
+//     if ( totalSamples <= 1 )
+//   return FALSE;
+
+//     // Seek to requested position
+//     qDebug( "seek pos: %i", (int)((double)pos * d->input.fileLength / totalSamples) );
+//     ::lseek( d->input.fd, (long)((double)pos * d->input.fileLength / totalSamples), SEEK_SET );
+//     mad_stream_sync(&d->stream);
+
+//     mad_stream_init(&d->stream);
+//     mad_frame_init(&d->frame);
+//     mad_synth_init(&d->synth);
+
+//     return TRUE;
+    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;
 }