我想解码一个 speex 文件并转换成一个 PCM 波。我正在尝试编译他们给出的 speex 示例代码。它没有给出任何编译错误。但是当我运行它时它什么也没做..
在标记为“问题区域”的行之后，甚至 printf 也没有被解雇。代码不知何故崩溃了。你们能帮帮我吗？输出：FRAME_SIZE 320 nbytes 139928553 fprintf 后的循环计数
#include <speex/speex.h>
#include <stdio.h>
#include <stdlib.h>
/*The frame size in hardcoded for this sample code but it doesn't have to be*/
#define FRAME_SIZE 320
int main(int argc, char **argv)
{
char *outFile;
FILE *fin;
FILE *fout;
/*Holds the audio that will be written to file (16 bits per sample)*/
short out[FRAME_SIZE];
/*Speex handle samples as float, so we need an array of floats*/
float output[FRAME_SIZE];
char cbits[4096];
int nbBytes;
/*Holds the state of the decoder*/
void *state;
/*Holds bits so they can be read and written to by the Speex routines*/
SpeexBits bits;
int i, tmp;
long lSize;
size_t result;
char *buffer;
if (argc != 2)
{
printf("Warning: 2 arguments needed!\n");
return 0;
}
/*Create a new decoder state in narrowband mode*/
state = speex_decoder_init(&speex_nb_mode);
/*Set the perceptual enhancement on*/
tmp=8;
speex_decoder_ctl(state, SPEEX_SET_ENH, &tmp);
outFile = argv[1];
if ((fin = fopen(outFile, "r+")) == NULL)
{
printf("Warning: Cannot open file!\n");
return 0;
}
if ((fout = fopen("newFile.wav", "w+")) == NULL)
{
printf("Warning: Cannot open file!\n");
return 0;
}
/*Initialization of the structure that holds the bits*/
speex_bits_init(&bits);
printf("FRAME SIZE: %i\n", FRAME_SIZE);
while (!(feof(fin)))
{
/*Read the size encoded by sampleenc, this part will likely be
different in your application*/
fread(&nbBytes, sizeof(int), 1, fin);
fprintf (stderr, "nbBytes: %d\n", nbBytes); //It's reading the bytes and storing successfully
printf("loop count after fprintf \n" );
/*Read the "packet" encoded by sampleenc*/
fread(cbits, 1, nbBytes, fin); // Problem area
printf("after fread \n" );
/*Copy the data into the bit-stream struct*/
speex_bits_read_from(&bits, cbits, nbBytes);
/*Decode the data*/
speex_decode(state, &bits, output);
/*Copy from float to short (16 bits) for output*/
for (i=0;i<FRAME_SIZE;i++){
out[i]=output[i];
}
printf("loop count after for \n" );
/*Write the decoded audio to file*/
fwrite(out, sizeof(short), FRAME_SIZE, fout);
printf("loop count\n" );
}
/*Destroy the decoder state*/
speex_decoder_destroy(state);
/*Destroy the bit-stream truct*/
speex_bits_destroy(&bits);
fclose(fout);
fclose(fin);
return 0;
}