view pcma2efr/pcma-input.c @ 43:8bfc517fda3b

efr-sid: hack created
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 09 Jun 2024 05:57:48 +0000
parents dd9a9368009e
children
line wrap: on
line source

/*
 * This program emits the full sequence (3 EHFs and 2 copies of seqsynca)
 * that needs to be fed to TRAU DL input from G.711 PCMA side to perform
 * the test of reversing the EFR variant used and finding frame sync.
 */

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>

extern const uint8_t seqsynca_last_frame[160];

main(argc, argv)
	char **argv;
{
	FILE *outf;
	uint8_t ehf[160];

	if (argc != 2) {
		fprintf(stderr, "usage: %s pcma-out-file\n", argv[0]);
		exit(1);
	}
	outf = fopen(argv[1], "w");
	if (!outf) {
		perror(argv[1]);
		exit(1);
	}
	memset(ehf, 0xD5, 160);
	fwrite(ehf, 1, 160, outf);
	fwrite(ehf, 1, 160, outf);
	fwrite(ehf, 1, 160, outf);
	fwrite(seqsynca_last_frame, 1, 160, outf);
	fwrite(seqsynca_last_frame, 1, 160, outf);
	fclose(outf);
	exit(0);
}