FreeCalypso > hg > gsm-codec-lib
view miscutil/Makefile @ 604:54f0f1b74c25
libgsmhr1 TFO: require BFI=0 and SID=0 for homing
In order for a received frame to be recognized as DHF, we need
not only the correct bit pattern, but also BFI=0 and SID=0.
The BFI=0 requirement should be obvious, while the SID=0 requirement
is needed only for HR codec. With FR and EFR, SID classification
comes from the payload bits and no separate check is needed -
but in HR we get an out-of-band SID ternary flag. When SID=1,
no payload bits are used at all; when SID=2, we use only the first
33 bits of the payload. Therefore, it is proper to conditionalize
DHF acceptance on SID=0.
We already implemented this logic in the just finished full decoder;
now bring TFO code into agreement.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 04 Dec 2025 19:40:35 +0000 |
| parents | ddb2b00d582b |
| children |
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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 \ tw5a-to-gsmx LIBEFR= ../libgsmefr/libgsmefr.a ../libgsmfr2/libgsmfr2.a LIBTEST=../libtest/libtest.a include ../config.defs all: ${PROGS} amrts-pcm8-compact: amrts-pcm8-compact.c ${CC} ${CFLAGS} -o $@ $@.c gsmrec-dump: gsmrec-dump.o ${LIBTEST} ${LIBEFR} ${CC} ${CFLAGS} -o $@ gsmrec-dump.o ${LIBTEST} ${LIBEFR} gsmx-to-tw5a: gsmx-to-tw5a.o ${LIBTEST} ${CC} ${CFLAGS} -o $@ gsmx-to-tw5a.o ${LIBTEST} pcm16-check13: pcm16-check13.c ${CC} ${CFLAGS} -o $@ $@.c pcm16-raw2wav: raw2wav.o ${LIBTEST} ${CC} ${CFLAGS} -o $@ raw2wav.o ${LIBTEST} pcm16-to-alaw: pcm16-to-alaw.c ${CC} ${CFLAGS} -o $@ $@.c pcm16-to-ulaw: pcm16-to-ulaw.c ${CC} ${CFLAGS} -o $@ $@.c pcm16-wav2raw: wav2raw.o ${LIBTEST} ${CC} ${CFLAGS} -o $@ wav2raw.o ${LIBTEST} pcm8-to-pcm16: pcm8-to-pcm16.c ${CC} ${CFLAGS} -o $@ $@.c 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} clean: rm -f *.o *.out ${PROGS}
