FreeCalypso > hg > gsm-codec-lib
changeset 524:ddb2b00d582b
miscutil: new program tw5a-to-gsmx
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 19 Sep 2024 05:02:45 +0000 |
parents | 86d4ec69b36c |
children | c95e89367321 |
files | .hgignore miscutil/Makefile miscutil/tw5a-to-gsmx.c |
diffstat | 3 files changed, 106 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/.hgignore Thu Sep 19 04:13:28 2024 +0000 +++ b/.hgignore Thu Sep 19 05:02:45 2024 +0000 @@ -92,3 +92,4 @@ ^miscutil/pcm16-wav2raw$ ^miscutil/pcm8-to-pcm16$ ^miscutil/tw5a-dump$ +^miscutil/tw5a-to-gsmx$
--- a/miscutil/Makefile Thu Sep 19 04:13:28 2024 +0000 +++ b/miscutil/Makefile Thu Sep 19 05:02:45 2024 +0000 @@ -1,5 +1,6 @@ PROGS= amrts-pcm8-compact gsmrec-dump gsmx-to-tw5a pcm16-check13 pcm16-raw2wav\ - pcm16-to-alaw pcm16-to-ulaw pcm16-wav2raw pcm8-to-pcm16 tw5a-dump + pcm16-to-alaw pcm16-to-ulaw pcm16-wav2raw pcm8-to-pcm16 tw5a-dump \ + tw5a-to-gsmx LIBEFR= ../libgsmefr/libgsmefr.a ../libgsmfr2/libgsmfr2.a LIBTEST=../libtest/libtest.a @@ -37,6 +38,9 @@ tw5a-dump: tw5a-dump.o ${LIBTEST} ${LIBEFR} ${CC} ${CFLAGS} -o $@ tw5a-dump.o ${LIBTEST} ${LIBEFR} +tw5a-to-gsmx: tw5a-to-gsmx.o ${LIBTEST} + ${CC} ${CFLAGS} -o $@ tw5a-to-gsmx.o ${LIBTEST} + install: mkdir -p ${DESTDIR}${bindir} install -c ${PROGS} ${DESTDIR}${bindir}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/miscutil/tw5a-to-gsmx.c Thu Sep 19 05:02:45 2024 +0000 @@ -0,0 +1,100 @@ +/* + * This program converts FR/EFR speech recordings from TW-TS-005 Annex A + * hexadecimal format into our older gsmx binary format. + */ + +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <strings.h> +#include "../libgsmfr2/tw_gsmfr.h" +#include "../libgsmefr/gsm_efr.h" +#include "../libtest/tw5reader.h" + +main(argc, argv) + char **argv; +{ + FILE *hexf, *outf; + unsigned lineno; + uint8_t frame[TWTS005_MAX_FRAME]; + unsigned frame_len; + int rc; + + if (argc != 3) { + fprintf(stderr, "usage: %s input.hex output.gsmx\n", argv[0]); + exit(1); + } + hexf = fopen(argv[1], "r"); + if (!hexf) { + perror(argv[1]); + exit(1); + } + lineno = 0; + outf = fopen(argv[2], "w"); + if (!outf) { + perror(argv[2]); + exit(1); + } + for (;;) { + rc = twts005_read_frame(hexf, &lineno, frame, &frame_len); + if (rc < 0) { + fprintf(stderr, "%s line %u: not valid TW-TS-005\n", + argv[1], lineno); + exit(1); + } + if (!rc) + break; + switch (frame_len) { + case 0: + putc(0xBF, outf); + putc(0, outf); + break; + case 1: + if ((frame[0] & 0xF6) != 0xE6) + goto invalid; + putc(0xBF, outf); + putc(frame[0] & 1, outf); + break; + case GSMFR_RTP_FRAME_LEN: + if ((frame[0] & 0xF0) != 0xD0) + goto invalid; + fwrite(frame, 1, GSMFR_RTP_FRAME_LEN, outf); + break; + case GSMFR_RTP_FRAME_LEN+1: + if ((frame[0] & 0xF4) != 0xE0) + goto invalid; + if ((frame[1] & 0xF0) != 0xD0) + goto invalid; + if (frame[0] & 0x02) { + putc(0xBF, outf); + putc(frame[0] & 1, outf); + } else + fwrite(frame + 1, 1, GSMFR_RTP_FRAME_LEN, outf); + break; + case EFR_RTP_FRAME_LEN: + if ((frame[0] & 0xF0) != 0xC0) + goto invalid; + fwrite(frame, 1, EFR_RTP_FRAME_LEN, outf); + break; + case EFR_RTP_FRAME_LEN+1: + if ((frame[0] & 0xF4) != 0xE0) + goto invalid; + if ((frame[1] & 0xF0) != 0xC0) + goto invalid; + if (frame[0] & 0x02) { + putc(0xBF, outf); + putc(frame[0] & 1, outf); + } else + fwrite(frame + 1, 1, EFR_RTP_FRAME_LEN, outf); + break; + default: + invalid: + fprintf(stderr, + "%s line %u: not a valid FR or EFR frame\n", + argv[1], lineno); + exit(1); + } + } + exit(0); +}