# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1713126989 0
# Node ID e0d42e87da96cb3a12992011457afbc03352a638
# Parent  962861d46ccfd767205f6724177626f90a8b4da2
frtest: new utility gsmfr-decode-rb

diff -r 962861d46ccf -r e0d42e87da96 .hgignore
--- a/.hgignore	Sun Apr 14 20:05:58 2024 +0000
+++ b/.hgignore	Sun Apr 14 20:36:29 2024 +0000
@@ -50,6 +50,7 @@
 ^frtest/gsmfr-cod2std$
 ^frtest/gsmfr-decode$
 ^frtest/gsmfr-decode-r$
+^frtest/gsmfr-decode-rb$
 ^frtest/gsmfr-dlcap-gsmx$
 ^frtest/gsmfr-dlcap-parse$
 ^frtest/gsmfr-encode$
diff -r 962861d46ccf -r e0d42e87da96 frtest/Makefile
--- a/frtest/Makefile	Sun Apr 14 20:05:58 2024 +0000
+++ b/frtest/Makefile	Sun Apr 14 20:36:29 2024 +0000
@@ -1,7 +1,8 @@
 CC=	gcc
 CFLAGS=	-O2
-PROGS=	gsmfr-cod2std gsmfr-decode gsmfr-decode-r gsmfr-dlcap-gsmx \
-	gsmfr-dlcap-parse gsmfr-encode gsmfr-encode-r gsmfr-preproc
+PROGS=	gsmfr-cod2std gsmfr-decode gsmfr-decode-r gsmfr-decode-rb \
+	gsmfr-dlcap-gsmx gsmfr-dlcap-parse gsmfr-encode gsmfr-encode-r \
+	gsmfr-preproc
 LIBFR2=	../libgsmfr2/libgsmfr2.a
 LIBTEST=../libtest/libtest.a
 INSTBIN=/opt/freecalypso/bin
@@ -17,6 +18,9 @@
 gsmfr-decode-r:	decode-r.o ${LIBTEST} ${LIBFR2}
 	${CC} ${CFLAGS} -o $@ decode-r.o ${LIBTEST} ${LIBFR2}
 
+gsmfr-decode-rb:	decode-rb.o ${LIBTEST} ${LIBFR2}
+	${CC} ${CFLAGS} -o $@ decode-rb.o ${LIBTEST} ${LIBFR2}
+
 gsmfr-dlcap-gsmx:	dlcap-gsmx.o tidsp.o ${LIBTEST}
 	${CC} ${CFLAGS} -o $@ dlcap-gsmx.o tidsp.o ${LIBTEST}
 
diff -r 962861d46ccf -r e0d42e87da96 frtest/decode-rb.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/frtest/decode-rb.c	Sun Apr 14 20:36:29 2024 +0000
@@ -0,0 +1,64 @@
+/*
+ * gsmfr-decode-rb is a "raw basic" decoder: only the basic GSM 06.10 decoder
+ * is applied (no Rx DTX preprocessor), and the output format is raw BE.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include "../libgsmfr2/tw_gsmfr.h"
+#include "../libtest/binreader.h"
+#include "../libtest/robewrite.h"
+
+main(argc, argv)
+	char **argv;
+{
+	FILE *binf, *outf;
+	struct gsmfr_0610_state *dec_state;
+	uint8_t frame[BINFILE_MAX_FRAME];
+	int16_t pcm[160];
+	int rc;
+
+	if (argc != 3) {
+		fprintf(stderr, "usage: %s input.gsm output.robe\n", argv[0]);
+		exit(1);
+	}
+	binf = fopen(argv[1], "r");
+	if (!binf) {
+		perror(argv[1]);
+		exit(1);
+	}
+	outf = fopen(argv[2], "w");
+	if (!outf) {
+		perror(argv[2]);
+		exit(1);
+	}
+	dec_state = gsmfr_0610_create();
+	if (!dec_state) {
+		fprintf(stderr, "gsmfr_0610_create() failed!\n");
+		exit(1);
+	}
+	for (;;) {
+		rc = binfile_read_frame(binf, frame);
+		if (rc < 0) {
+			fprintf(stderr, "error: garbage in %s\n", argv[1]);
+			exit(1);
+		}
+		if (!rc)
+			break;
+		if (frame[0] == 0xBF) {
+			fprintf(stderr, "error: %s contains disallowed BFI\n",
+				argv[1]);
+			exit(1);
+		}
+		if ((frame[0] & 0xF0) != 0xD0) {
+			fprintf(stderr, "error: %s is not in FR codec format\n",
+				argv[1]);
+			exit(1);
+		}
+		gsmfr_0610_decode_frame(dec_state, frame, pcm);
+		write_pcm_to_robe(outf, pcm);
+	}
+	fclose(outf);
+	exit(0);
+}