RMUL2025/lib/cmsis_5/CMSIS/DSP/cmsisdsp/sdf/nodes/Unzip.py

44 lines
1.5 KiB
Python
Executable File

###########################################
# Project: CMSIS DSP Library
# Title: Unzip.py
# Description: Unzip streams
#
# $Date: 06 August 2021
# $Revision: V1.10.0
#
# Target Processor: Cortex-M and Cortex-A cores
# -------------------------------------------------------------------- */
#
# Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed 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
#
# 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.
############################################
from .simu import *
# Convert a stream of a1 b1 a2 b2 ...
# to two streams
# a1 a2 ...
# b1 b2 ....
class Unzip(GenericNode):
def __init__(self,inputSize,outputSize1,outputSize2, fifoin,fifoout1,fifoout2):
GenericNode12.__init__(self,inputSize,outputSize1,outputSize2,fifoin,fifoout1,fifoout2)
def run(self):
a=self.getReadBuffer()
b1=self.getWriteBuffer1()
b2=self.getWriteBuffer2()
b1[:]=a[::2]
b2[:]=a[1::2]
return(0)