Some question about code in speex_jitter_buffer.c

[chapayGhub]

I can not understand why we make speex_decode_int of jitter->current_packet 2 times
first time after get packet from buffer, after set flag valid_bits to 1, second time at next speex_jitter_get call

speex_jitter_buffer.c:

void speex_jitter_get(SpeexJitter *jitter, spx_int16_t *out, int *current_timestamp) {
   //....
   if (jitter->valid_bits)
   {
//
//         here we decode last received packet to out second time
//
      ret = speex_decode_int(jitter->dec, &jitter->current_packet, out);
      //...
   }
   
   //....

//     
//        here we decode last received packet to out first time
//
      ret = speex_decode_int(jitter->dec, &jitter->current_packet, out);
      if (ret == 0)
      {
         jitter->valid_bits = 1;
     }
//....
}

Thanks!

[marauder2k7]

Do you have to download an older version of speex to use jitterbuffer? The header file speex_jitter.h is no longer in the latest branch

[tmatth]

Do you have to download an older version of speex to use jitterbuffer? The header file speex_jitter.h is no longer in the latest branch

The speex the codec and speexdsp the DSP library have been split into separate projects, see https://gitlab.xiph.org/xiph/speexdsp/-/blob/master/include/speex/speex_jitter.h