Question

我实际上正在尝试重新编写类似应用程序的Skype。我成功地安装并使用了portaudio和opencv库，但是我在Visual Studio 2013上使用Speex遇到了一些问题（压缩编解码器）。

目前，我只是想编译Speex给出的样本来测试库。

#include <speex/speex.h>
#include <stdio.h>

/*The frame size in hardcoded for this sample code but it doesn't have to be*/
#define FRAME_SIZE 160
int main(int argc, char **argv)
{
   char *inFile;
   FILE *fin;
   short in[FRAME_SIZE];
   float input[FRAME_SIZE];
   char cbits[200];
   int nbBytes;
   /*Holds the state of the encoder*/
   void *state;
   /*Holds bits so they can be read and written to by the Speex routines*/
   SpeexBits bits;
   int i, tmp;

   /*Create a new encoder state in narrowband mode*/
   state = speex_encoder_init(&speex_nb_mode);

   /*Set the quality to 8 (15 kbps)*/
   tmp=8;
   speex_encoder_ctl(state, SPEEX_SET_QUALITY, &tmp);

   inFile = argv[1];
   fin = fopen(inFile, "r");

   /*Initialization of the structure that holds the bits*/
   speex_bits_init(&bits);
   while (1)
   {
      /*Read a 16 bits/sample audio frame*/
      fread(in, sizeof(short), FRAME_SIZE, fin);
      if (feof(fin))
         break;
      /*Copy the 16 bits values to float so Speex can work on them*/
      for (i=0;i<FRAME_SIZE;i++)
         input[i]=in[i];

      /*Flush all the bits in the struct so we can encode a new frame*/
      speex_bits_reset(&bits);

      /*Encode the frame*/
      speex_encode(state, input, &bits);
      /*Copy the bits to an array of char that can be written*/
      nbBytes = speex_bits_write(&bits, cbits, 200);

      /*Write the size of the frame first. This is what sampledec expects but
       it's likely to be different in your own application*/
      fwrite(&nbBytes, sizeof(int), 1, stdout);
      /*Write the compressed data*/
      fwrite(cbits, 1, nbBytes, stdout);

   }

   /*Destroy the encoder state*/
   speex_encoder_destroy(state);
   /*Destroy the bit-packing struct*/
   speex_bits_destroy(&bits);
   fclose(fin);
   return 0;
}

问题是，我添加了lib并在属性中包含了repertories，我还在liber属性（输入）中添加了libspeex.lib和libspeexdsp.lib到附加依赖项。

这正是我为前两个库所做的，但它似乎不适用于这个。我总是遇到这个错误：“错误LNK2001：未解析的外部符号_speex_nb_mode”。

我真的很感激一些帮助！谢谢你们！

无法编译Speex Library Samplenc

0 个答案: