[Speex-dev] Decoding only a certain frame results in different values than when decoding the entire file

[Hermann Weber]

It would be nice to get more input.
I am really lost because I am not sure what is going on here, and there 
are no sources to investigate on.

Thank you.

Hermann

Am 22.12.2011 20:55, schrieb Hermann Weber:
> To make it complete, here is the code that I am using to encode a large
> file:
>
> int __stdcall SpxEncode(unsigned char* inBuf, unsigned char* outBuf,
> unsigned int inlen)
> {
>       //char *testFile;
>       //FILE *ftest;
>       //testFile = "test";
>       //ftest = fopen(testFile, "wb");
>       //fwrite(inBuf,1,inlen,ftest);
>
>       //take every 320 bytes
>       //copy every short to float array, and make sure to put null in
> unused area
>
>       float input[MAX_FRAME_SIZE];
>       char cbits[MAX_FRAME_BYTES];
>       unsigned int inBufpos = 0, j, outBufpos = 0;
>       short *sinBuf;
>
>       sinBuf = (short*) inBuf;
>
>       do
>       {
>           j = 0;
>           do
>               {
>               //copy to float array
>               input[j] = sinBuf[inBufpos];
>               inBufpos++; j++;
>               }
>           while ((inBufpos % 160 != 0)&&  (inBufpos != (inlen/2)));
>
>           //fill the rest with null
>           if (inBufpos == (inlen/2))
>               for (j=(inBufpos%160); j<160; j++)    input[j] = 0;
>
>           speex_bits_reset(&bits);
>           speex_encode(encstate, input,&bits);
>
>           /*Copy the bits to an array of char that can be written*/
>           speex_bits_write(&bits, cbits, MAX_FRAME_BYTES);
>           for (j=0; j<62; j++)
>               {
>               outBuf[outBufpos] = cbits[j];
>               outBufpos++;
>               }
>
>       }
>       while (inBufpos != (inlen/2));
>
>       //fwrite(outBuf, 1, outBufpos, ftest);
>       //fclose(ftest);
>       return 42;
> }
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