i've tested, now you can too

2025-08-14 01:49:05 +00:00 · 2012-12-20 20:08:42 -06:00
parent d3fcfa8245
commit d67b96af8a
94 changed files with 25305 additions and 2005 deletions
--- a/libs/libcodec2/src/fdmdv_get_test_bits.c
+++ b/libs/libcodec2/src/fdmdv_get_test_bits.c
@@ -0,0 +1,100 @@
+/*---------------------------------------------------------------------------*\
+                                                                             
+  FILE........: fdmdv_get_test_bits.c
+  AUTHOR......: David Rowe  
+  DATE CREATED: 1 May 2012
+                                                                             
+  Generates a file of packed test bits, useful for input to fdmdv_mod.
+
+\*---------------------------------------------------------------------------*/
+
+
+/*
+  Copyright (C) 2012 David Rowe
+
+  All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License version 2, as
+  published by the Free Software Foundation.  This program is
+  distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+  License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with this program; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <errno.h>
+
+#include "fdmdv.h"
+
+#define BITS_PER_CODEC_FRAME (2*FDMDV_BITS_PER_FRAME)
+#define BYTES_PER_CODEC_FRAME (BITS_PER_CODEC_FRAME/8)
+
+int main(int argc, char *argv[])
+{
+    FILE         *fout;
+    struct FDMDV *fdmdv;
+    char          packed_bits[BYTES_PER_CODEC_FRAME];
+    int           tx_bits[2*FDMDV_BITS_PER_FRAME];
+    int           n, i, bit, byte;
+    int           numBits, nCodecFrames;
+
+    if (argc < 3) {
+	printf("usage: %s OutputBitFile numBits\n", argv[0]);
+	printf("e.g    %s test.c2 1400\n", argv[0]);
+	exit(1);
+    }
+
+    if (strcmp(argv[1], "-") == 0) fout = stdout;
+    else if ( (fout = fopen(argv[1],"wb")) == NULL ) {
+	fprintf(stderr, "Error opening output bit file: %s: %s.\n",
+         argv[1], strerror(errno));
+	exit(1);
+    }
+
+    numBits = atoi(argv[2]);
+    nCodecFrames = numBits/BITS_PER_CODEC_FRAME;
+
+    fdmdv = fdmdv_create();
+
+    for(n=0; n<nCodecFrames; n++) {
+
+	fdmdv_get_test_bits(fdmdv, tx_bits);
+	fdmdv_get_test_bits(fdmdv, &tx_bits[FDMDV_BITS_PER_FRAME]);
+	
+	/* pack bits, MSB received first  */
+
+	bit = 7; byte = 0;
+	memset(packed_bits, 0, BYTES_PER_CODEC_FRAME);
+	for(i=0; i<BITS_PER_CODEC_FRAME; i++) {
+	    packed_bits[byte] |= (tx_bits[i] << bit);
+	    bit--;
+	    if (bit < 0) {
+		bit = 7;
+		byte++;
+	    }
+	}
+	assert(byte == BYTES_PER_CODEC_FRAME);
+
+	fwrite(packed_bits, sizeof(char), BYTES_PER_CODEC_FRAME, fout);
+ 
+	/* if this is in a pipeline, we probably don't want the usual
+	   buffering to occur */
+
+        if (fout == stdout) fflush(stdout);
+    }
+
+    fclose(fout);
+    fdmdv_destroy(fdmdv);
+
+    return 0;
+}
+