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opusdet.c
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opusdet.c
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//opus decode encode tools
#include <stdio.h>
#include <stdlib.h>
#include "opus.h"
#include <sys/time.h>
#include <unistd.h>
#define DEFAULT_SAMPLERATEINHz 16000
#define DEFAULT_CHANNELCONFIG 1
#define DEFAULT_BITRATE 16000
#define READ_BUFFER_SIZE 640
int main(int argc, char **argv)
{
FILE *fin;
FILE *fout;
short *in = NULL;
short *out = NULL;
if (argc != 3)
{
fprintf(stderr, "usage: %s <raw opus input> <mp3 output>\n", argv[0]);
return 1;
}
fin = fopen(argv[1], "rb");
if (!fin)
{
fprintf(stderr, "cannot open input file: %s\n", argv[1]);
return 1;
}
fout = fopen(argv[2], "wb");
if (!fout)
{
fprintf(stderr, "cannot open output file: %s\n", argv[2]);
return 1;
}
int sampleRateInHz = DEFAULT_SAMPLERATEINHz;
int channelConfig = DEFAULT_CHANNELCONFIG;
int bitrate = DEFAULT_BITRATE;
int error;
size_t num_read;
OpusEncoder *pOpusEnc = opus_encoder_create(sampleRateInHz, channelConfig,
OPUS_APPLICATION_RESTRICTED_LOWDELAY,
&error);
if (pOpusEnc) {
opus_encoder_ctl(pOpusEnc, OPUS_SET_VBR(0));//0:CBR, 1:VBR
opus_encoder_ctl(pOpusEnc, OPUS_SET_VBR_CONSTRAINT(true));
opus_encoder_ctl(pOpusEnc, OPUS_SET_BITRATE( bitrate* 1000));
opus_encoder_ctl(pOpusEnc, OPUS_SET_COMPLEXITY(complexity));//8 0~10
opus_encoder_ctl(pOpusEnc, OPUS_SET_SIGNAL(OPUS_SIGNAL_VOICE));
opus_encoder_ctl(pOpusEnc, OPUS_SET_LSB_DEPTH(16));
opus_encoder_ctl(pOpusEnc, OPUS_SET_DTX(0));
opus_encoder_ctl(pOpusEnc, OPUS_SET_INBAND_FEC(0));
opus_encoder_ctl(pOpusEnc, OPUS_SET_PACKET_LOSS_PERC(0));
}
unsigned char *out = (short *)malloc(READ_BUFFER_SIZE * sizeof(char));
while (1)
{
unsigned char data[READ_BUFFER_SIZE];
num_read = fread(data, 1, READ_BUFFER_SIZE, fin);
short sData[num_read/2];
memcpy(data , sData, num_read );
if (num_read > 0)
{
int result = opus_encode(pOpusEnc, sData, num_read/2, out,
READ_BUFFER_SIZE * sizeof(char));
if (fwrite(out, 1, result, fout) != (unsigned)(result)){
printf("write error\n",output_samples,result);
goto failure;
}
}
else{
break;
}
}
fclose(fout);
fclose(fin);
failure:
printf("encode end!\n");
opus_encoder_destroy(pOpusEnc);//销毁解码器
}