1 files changed, 150 insertions, 0 deletions
diff --git a/mpeglib/lib/oggvorbis/vorbisInfo.cpp b/mpeglib/lib/oggvorbis/vorbisInfo.cpp
new file mode 100644
index 00000000..b71f99c3
--- /dev/null
+++ b/mpeglib/lib/oggvorbis/vorbisInfo.cpp
@@ -0,0 +1,150 @@
+/*
+  info about vorbis files.
+  Copyright (C) 2001  Martin Vogt
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Library General Public License as published by
+  the Free Software Foundation.
+
+  For more information look at the file COPYRIGHT in this package
+
+ */
+
+
+#include "vorbisInfo.h"
+
+#include <iostream>
+
+using namespace std;
+
+#ifdef OGG_VORBIS
+#define CHUNKSIZE 4096
+
+#define GETINPUT(stream,input)                                            \
+                               VorbisInfo* info=(VorbisInfo*) stream;     \
+                               FileAccess* input=info->getInput();   
+
+
+size_t fread_func2(void *ptr, size_t size, size_t nmemb, void *stream) {
+  GETINPUT(stream,input);
+
+  size_t want=size*nmemb;
+  size_t back=input->read((char*)ptr,want);
+  return back;
+}
+
+
+int fseek_func2(void *stream, ogg_int64_t offset, int whence) {
+  int ret;
+  GETINPUT(stream,input);
+
+  if (whence==SEEK_SET) {
+    ret=input->seek(offset);
+    info->setSeekPos(offset);
+    return ret;
+  }
+  if (whence==SEEK_CUR) {
+    ret=input->seek(input->getBytePosition()+offset);
+    return ret;
+  }  
+  if (whence==SEEK_END) {
+    ret=input->seek(input->getByteLength());
+    return ret;
+  }   
+  cout << "hm, strange call"<<endl;
+  return -1;
+}
+
+
+int fclose_func2 (void * stream) {
+  cout << "fclose_func"<<endl;
+  GETINPUT(stream,input);
+  // its handled different in kmpg
+  // we close the stream if the decoder signals eof.
+  return true;
+
+}
+
+
+long ftell_func2  (void *stream) {
+  GETINPUT(stream,input);
+  return input->getBytePosition();
+}
+
+
+
+
+VorbisInfo::VorbisInfo(FileAccess* input) {
+  this->input=input;
+  vf=new OggVorbis_File();
+
+  ov_callbacks callbacks;
+
+  callbacks.read_func  = fread_func2;
+  callbacks.seek_func  = fseek_func2;
+  callbacks.close_func = fclose_func2;
+  callbacks.tell_func  = ftell_func2;
+ 
+  if(ov_open_callbacks(this, vf, NULL, 0, callbacks) < 0) {
+    cout << "error ov_open_callbacks"<<endl;
+  }
+  
+  // now init stream
+  vi=ov_info(vf,-1);
+  lastSeekPos=0;
+}
+
+
+VorbisInfo::~VorbisInfo() {
+  delete vf;
+  if (vi != NULL) {
+    //?
+  }
+}
+
+
+long VorbisInfo::getSeekPosition(int seconds) {
+  int back=0;
+  if (vi != NULL) {
+    lastSeekPos=0;
+    ov_time_seek(vf,seconds);
+    back=lastSeekPos;
+  }
+  return back;
+}
+
+
+long VorbisInfo::getLength() {
+  int back=0;
+  if (vi != NULL) {
+    back = (int) ov_time_total(vf, -1);
+  }
+  return back;
+}
+
+
+
+
+void VorbisInfo::print(const char* msg) {
+  cout << "VorbisInfo:"<<msg<<endl;
+  cout << "Length (sec):"<<getLength()<<endl;
+
+}
+
+
+void VorbisInfo::setSeekPos(long pos) {
+  this->lastSeekPos=pos;
+}
+
+
+long VorbisInfo::getSeekPos() {
+  return lastSeekPos;
+}
+
+FileAccess* VorbisInfo::getInput() {
+  return input;
+}
+
+
+
+#endif