[Asterisk-Dev] RFC3389 problem a little more info..

[Rob Gagnon]

If you can reproduce this easily, try debug output of rtp->f.mallocd, and the value of the rtp->f.data pointer.  I would bet both are zero somehow when that function runs.
  ----- Original Message ----- 
  From: cf at internetit.dk 
  To: asterisk-dev at lists.digium.com 
  Sent: Tuesday, September 07, 2004 11:28 AM
  Subject: [Asterisk-Dev] RFC3389 problem a little more info..


  Hi Again,

  Added some more info in rtp.c, and this the problem:

  RFC3389: 5 bytes, level 0...
  RFC3389: Copying 5 bytes.... 
  Segmentation fault

  static struct ast_frame *process_rfc3389(struct ast_rtp *rtp, unsigned char *data, int len)
  {
          struct ast_frame *f = NULL;
          /* Convert comfort noise into audio with various codecs.  Unfortunately this doesn't
             totally help us out becuase we don't have an engine to keep it going and we are not
             guaranteed to have it every 20ms or anything */
  #if 1
          printf("RFC3389: %d bytes, level %d...\n", len, rtp->lastrxformat);
  #endif  
          if (!(rtp->flags & FLAG_3389_WARNING)) {
                  ast_log(LOG_NOTICE, "RFC3389 support incomplete.  Turn off on client if possible\n");
                  rtp->flags |= FLAG_3389_WARNING;
          }
          /* Must have at least one byte */
          if (!len) {
                  printf("RFC3389: Lenghth is -1 or null bytes.... \n");
                  return NULL;
          }
          if (len < 24) {
                  printf("RFC3389: Copying %d bytes.... \n", len);
                  rtp->f.datalen = len - 1;
                  memcpy(rtp->f.data, data + 1, len - 1);
                  printf("RFC3389: Copying finished %d bytes.... \n", len);
          } else {
                   printf("RFC3389: Copying 0 bytes.... \n");
                  rtp->f.datalen = 0;
          }
          printf("RFC3389: Preparing return.... \n");
          rtp->f.frametype = AST_FRAME_CNG;
          rtp->f.subclass = data[0] & 0x7f;
          rtp->f.datalen = len - 1;
          rtp->f.samples = 0;
          rtp->f.delivery.tv_usec = rtp->f.delivery.tv_sec = 0;
          f = &rtp->f;
          printf("RFC3389: Returning f.... \n");
          return f;
  }

  Does this occur because the len is set but the data isn't there??

  Kind regards

  Claus


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