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audioutils: Add RTTTL parsing library

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Add a simple library for parsing Ring Tone Text Transfer Language
(RTTTL).

Signed-off-by: Jiri Vlasak <jvlasak@elektroline.cz>
This commit is contained in:
Jiri Vlasak 2026-05-11 09:09:12 +02:00 • committed by Alan C. Assis
parent 84022eaa81
commit d0fa5af39b
4 changed files with 97 additions and 0 deletions
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1
audioutils/rtttl-c/.gitignore vendored Normal file
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/rtttl-c

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audioutils/rtttl-c/Kconfig Normal file
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config AUDIOUTILS_RTTTL_C
bool "RTTTL parsing library"
default n
---help---
Simple library for parsing Ring Tone Text Transfer Language (RTTTL)
Define how to make a sound:
void
play_tone(struct rtttl_tone tone)
{
/* TODO: Make a sound with
* tone.frequency_100hz
* tone.period_us
* tone.duration_us
*/
}
and then play RTTTL string:
rtttl_play("...", play_tone);

25
audioutils/rtttl-c/Make.defs Normal file
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############################################################################
# apps/audioutils/rtttl-c/Make.defs
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
ifneq ($(CONFIG_AUDIOUTILS_RTTTL_C),)
CONFIGURED_APPS += $(APPDIR)/audioutils/rtttl-c
endif

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audioutils/rtttl-c/Makefile Normal file
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############################################################################
# apps/audioutils/rtttl-c/Makefile
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
include $(APPDIR)/Make.defs
CSRCS = $(RTTTL_C_DIR)/rtttl.c
RTTTL_C_DIR = rtttl-c
RTTTL_C_VERSION = v0.1.0
RTTTL_C_RTTTL_H_SHA256 = 6331174ae34a419ad427d9755f8ba9d3b6a92c09ecc4f36bbe07ec5e4d0cc007
RTTTL_C_RTTTL_C_SHA256 = f0db64ef0b68136bac24616a3d62508bcc54ccdd68265d6447d99b264653b7b9
$(RTTTL_C_DIR):
$(Q) echo "Cloning rtttl-c repo..."
$(Q) git clone --depth=1 --branch=$(RTTTL_C_VERSION) https://git.sr.ht/~qeef/rtttl-c
$(Q) touch $(RTTTL_C_DIR)
$(Q) echo "Checking rtttl-c hashes..."
$(Q) $(APPDIR)/tools/check-hash.sh sha256 $(RTTTL_C_RTTTL_H_SHA256) $@/rtttl.h
$(Q) $(APPDIR)/tools/check-hash.sh sha256 $(RTTTL_C_RTTTL_C_SHA256) $@/rtttl.c
create_includes: $(RTTTL_C_DIR)/rtttl.h
$(Q) cp $< $(APPDIR)/include/audioutils
context:: $(RTTTL_C_DIR)
$(Q) $(MAKE) create_includes
distclean::
$(call DELFILE, $(APPDIR)/include/audioutils/rtttl.h)
$(call DELDIR, rtttl-c)
include $(APPDIR)/Application.mk