Вы должны проанализировать записанный файл PCM и перезаписать файл с той части, которую вы хотите перезаписать. SuperPowered не имеет такой функции.
FILE *fin;
float runTime=0;
//PCM HEADER
int SampleRate_24to27=0;// 441000,...,8000
int ByteRate_28to31=0;
short MonoStreo_32to33=0;
short BitPerSample_34to35=0;
int DataChunkSize_40to43=0;
std::string file = GS->mWritePath;
file.append("rec1.wav");
fin=fopen(file.c_str(),"rb");
fseek(fin,24,SEEK_SET);
fread(&SampleRate_24to27 , sizeof(int) , 1, fin);
printf("SampleRate %d \n",SampleRate_24to27);
fseek(fin,28,SEEK_SET);
fread(&ByteRate_28to31 , sizeof(int) , 1, fin);
printf("ByteRate %d \n",ByteRate_28to31);
fseek(fin,32,SEEK_SET);
fread(&MonoStreo_32to33 , sizeof(short) , 1, fin);
printf("MonoStreo %d \n",MonoStreo_32to33);
fseek(fin,34,SEEK_SET);
fread(&BitPerSample_34to35 , sizeof(short) , 1, fin);
printf("BitPerSample %d \n",BitPerSample_34to35);
fseek(fin,40,SEEK_SET);
fread(&DataChunkSize_40to43 , sizeof(int) , 1, fin);
printf("DataChunkSize %d \n",DataChunkSize_40to43);
runTime=(float)(((float)DataChunkSize_40to43/(float)(SampleRate_24to27*MonoStreo_32to33)));
printf("duration sec = %fsec\n", runTime);
printf("duration min = %3.2fmin", (float)runTime/60);
fclose(fin);
int savePos = 0;
savePos = 44+reRecordStartSec*(SampleRate_24to27*MonoStreo_32to33);
// 44 -> HEADER SIZE
// 4sec * (SampleRate_24to27*MonoStreo_32to33)
char buf[SPLIT_BYTE]; //1000KB
std::string file1 = GS->mWritePath;
file1.append("rec1.wav");
std::string file2 = GS->mWritePath;
file2.append("rec2.wav");
FILE * rfp, * wfp;
wfp = fopen(file1.c_str(), "rb+"); //src
rfp = fopen(file2.c_str(), "rb"); //dst
fseek(wfp, savePos, SEEK_SET);
fseek(rfp, 44, SEEK_SET);// dst header skip
long count = 0;
while (feof(rfp) == 0) //
{
count = fread(buf, sizeof(char), SPLIT_BYTE, rfp);
fwrite(buf, sizeof(char), count, wfp);
memset(buf, 0, SPLIT_BYTE);
}
fclose(rfp);
fclose(wfp);
person
juuk
schedule
22.12.2020