gsmhr_decoder_twts002_in(): set BFI=1 SID=1 for invalid SID When a received TW-TS-002 RTP payload indicates invalid SID, which of the 3 possible BFI/SID combinations should we pass to our internal ETSI-based speech decoder or TFO engine? Our original code passed BFI=0 SID=1, but upon further reflection, BFI=1 SID=1 is a better choice. In the corner case where received invalid SID is fed to a full decoder in homed state, setting BFI=1 allows that decoder to emit zeros on PCM and stay homed, instead of launching into full decoding.

/*
 * Here we implement our emit_hex_frame() function.
 */

#include <stdio.h>
#include <stdint.h>
#include "tw5writer.h"

void emit_hex_frame(FILE *outf, const uint8_t *frame, unsigned nbytes)
{
	unsigned n;

	for (n = 0; n < nbytes; n++)
		fprintf(outf, "%02X", frame[n]);
	putc('\n', outf);
}