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decodeNOAAMultifile.grc
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<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.13'?>
<flow_graph>
<timestamp>Tue Jan 8 18:32:39 2019</timestamp>
<block>
<key>options</key>
<param>
<key>author</key>
<value></value>
</param>
<param>
<key>window_size</key>
<value>1400,800</value>
</param>
<param>
<key>category</key>
<value>[GRC Hier Blocks]</value>
</param>
<param>
<key>comment</key>
<value>Application runs and stops automatically.</value>
</param>
<param>
<key>description</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(8, 8)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>generate_options</key>
<value>no_gui</value>
</param>
<param>
<key>hier_block_src_path</key>
<value>.:</value>
</param>
<param>
<key>id</key>
<value>top_block</value>
</param>
<param>
<key>max_nouts</key>
<value>0</value>
</param>
<param>
<key>qt_qss_theme</key>
<value></value>
</param>
<param>
<key>realtime_scheduling</key>
<value></value>
</param>
<param>
<key>run_command</key>
<value>{python} -u {filename}</value>
</param>
<param>
<key>run_options</key>
<value>run</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>sizing_mode</key>
<value>fixed</value>
</param>
<param>
<key>thread_safe_setters</key>
<value></value>
</param>
<param>
<key>title</key>
<value></value>
</param>
<param>
<key>placement</key>
<value>(0,0)</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(624, 156)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>BW</value>
</param>
<param>
<key>value</key>
<value>48000</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(816, 156)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>image_height</value>
</param>
<param>
<key>value</key>
<value>1400</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(704, 156)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>image_width</value>
</param>
<param>
<key>value</key>
<value>2080</value>
</param>
</block>
<block>
<key>analog_const_source_x</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>const</key>
<value>1</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(24, 516)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>analog_const_source_x_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>type</key>
<value>int</value>
</param>
</block>
<block>
<key>blocks_complex_to_mag</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(736, 472)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>blocks_complex_to_mag_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_float_to_char</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(160, 452)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_float_to_char_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>scale</key>
<value>1</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_float_to_complex</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1080, 520)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_float_to_complex_1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_float_to_uchar</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(328, 456)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>blocks_float_to_uchar_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_int_to_float</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(216, 516)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_int_to_float_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>scale</key>
<value>1</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_keep_m_in_n</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1112, 236)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_keep_m_in_n_0</value>
</param>
<param>
<key>m</key>
<value>4160</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>n</key>
<value>48000</value>
</param>
<param>
<key>type</key>
<value>int</value>
</param>
<param>
<key>offset</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_multiply_const_vxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>const</key>
<value>255</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(512, 452)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>blocks_multiply_const_vxx_0_1</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_multiply_const_vxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>Change this to amplify signal.</value>
</param>
<param>
<key>const</key>
<value>1</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(544, 284)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>blocks_multiply_const_vxx_0_1_0</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>epy_block</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>_io_cache</key>
<value>('To multiple bmp files', 'blk', [('max_num_files', '100'), ('width', '800'), ('height', '600'), ('folder', "''"), ('filename', "''")], [('0', 'byte', 1), ('1', 'byte', 1), ('2', 'int', 1)], [], 'arguments to this function show up as parameters in GRC', ['filename', 'folder', 'height', 'width'])</value>
</param>
<param>
<key>_source_code</key>
<value>import numpy as np
from gnuradio import gr
import scipy.misc
import os
import atexit
WORK_CALLED_PRODUCE=-2
WORK_DONE=-1
class blk(gr.sync_block): # other base classes are basic_block, decim_block, interp_block
def __init__(self,max_num_files=100,width=800,height=600,folder="",filename=""): # only default arguments here
"""arguments to this function show up as parameters in GRC"""
gr.sync_block.__init__(
self,
name='To multiple bmp files',
in_sig=[np.byte,np.byte,np.int],
out_sig=[]
)
self.width = width
self.height = height
self.stopat = width*height
self.folder = folder
self.filename = filename
self.img = np.zeros(shape=(max_num_files,width*height),dtype=np.uint8)
self.pos = np.zeros(shape=(max_num_files,),dtype=np.int)
self.wroteFile = np.zeros(shape=(max_num_files,), dtype=bool)
self.hasData = np.zeros(shape=(max_num_files,), dtype=bool)
atexit.register(self.finalize)
def writeFile(self,s):
self.wroteFile[s] = True
img = np.maximum(np.minimum(self.img[s],np.ones(self.img[s].shape)*255),np.zeros(self.img[s].shape))
img = img.reshape(self.height,self.width)
filePath = "%s%s%d_%s" % (self.folder,os.path.sep,s,self.filename)
print("write to: %s" % filePath)
scipy.misc.imsave(filePath, img)
def work(self, input_items, output_items):
imageByteCountTotal = 0
if((self.folder != "")and(self.filename != "")):
imageActive = input_items[1]==1
imagePartAll = input_items[0][imageActive]
imgSelect = input_items[2]
imgSelectU = np.unique(imgSelect)
for s in imgSelectU:
self.hasData[s] = True
pos = self.pos[s]
if(pos < self.stopat):
imagePart = imagePartAll[imgSelect==s]
imageByteCount = imagePart.shape[0]
ishape = self.img[0].shape
if ishape[0] < imageByteCount:
imageByteCount = ishape[0]
imagePart = imagePart[0:imageByteCount]
if imageByteCount > 0:
self.img[s][pos:pos+imageByteCount] = imagePart
self.pos[s] += imageByteCount
pos = self.pos[s]
imageByteCountTotal += imageByteCount
if(pos >= self.stopat):
if not self.wroteFile[s]:
self.writeFile(s)
return input_items[0].shape[0]
def finalize(self):
print("destructor")
for s in range(0,self.wroteFile.shape[0]):
if not self.wroteFile[s] and self.hasData[s]:
self.writeFile(s)
</value>
</param>
<param>
<key>comment</key>
<value>Edit this path to yours.</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>filename</key>
<value>'test.bmp'</value>
</param>
<param>
<key>folder</key>
<value>'d:\Backups_and_projects'</value>
</param>
<param>
<key>_coordinate</key>
<value>(328, 280)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>height</key>
<value>image_height</value>
</param>
<param>
<key>id</key>
<value>epy_block_0</value>
</param>
<param>
<key>max_num_files</key>
<value>100</value>
</param>
<param>
<key>width</key>
<value>image_width</value>
</param>
</block>
<block>
<key>epy_block</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>_io_cache</key>
<value>('wavfile folder source', 'blk', [('wav_file_folder', "''")], [], [('0', 'float', 1), ('1', 'float', 1), ('2', 'int', 1)], '', [])</value>
</param>
<param>
<key>_source_code</key>
<value>"""
Embedded Python Blocks:
Each time this file is saved, GRC will instantiate the first class it finds
to get ports and parameters of your block. The arguments to __init__ will
be the parameters. All of them are required to have default values!
"""
import os
from os import listdir
from os.path import isfile, join
import numpy as np
from gnuradio import gr
from gnuradio import blocks
import wave
import struct
WORK_DONE=-1
class blk(gr.basic_block): # other base classes are basic_block, decim_block, interp_block
def __init__(self, wav_file_folder=""): # only default arguments here
gr.basic_block.__init__(
self,
name='wavfile folder source',
in_sig=[],
out_sig=[np.float32,np.float32,np.int]
)
self.folder = wav_file_folder
self.initialized = False
self.pos = 0
def general_work(self, input_items, output_items):
size = output_items[0].shape[0]
if not self.initialized:
self.files = [f for f in listdir(self.folder) if isfile(join(self.folder, f))]
filePath = "%s%s%s" % (self.folder,os.path.sep,self.files[self.pos])
print("1: playing %s" % filePath)
self.current_wav_source = wave.open(filePath,"rb")
self.initialized = True
resultChannels = None
while True:
if self.pos >= len(self.files):
return WORK_DONE
if self.current_wav_source.tell() < self.current_wav_source.getnframes():
resultBin = self.current_wav_source.readframes(size)
channels = self.current_wav_source.getnchannels()
chunk_size = len(resultBin)//2
resultAllChannels = np.array(struct.unpack("<{0}h".format(chunk_size), resultBin),dtype=np.float32) / pow(2, 15)
resultChannels = np.zeros((2,len(resultAllChannels) // channels))
for c in range(0,channels):
resultChannels[c] = resultAllChannels[np.mod(np.arange(len(resultAllChannels)),channels)==c]
else:
self.pos += 1
if(self.pos<len(self.files)):
filePath = "%s%s%s" % (self.folder,os.path.sep,self.files[self.pos])
print("%d: playing %s" % (self.pos+1,filePath))
self.current_wav_source.close()
self.current_wav_source = wave.open(filePath,"rb")
continue
break
outSize = resultChannels[0].shape[0]
output_items[0][0:outSize] = resultChannels[0]
output_items[1][0:outSize] = resultChannels[1]
output_items[2][0:outSize] = (np.ones(resultChannels[0].shape,dtype=np.int)*(self.pos+1))
return outSize</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(16, 152)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>epy_block_1</value>
</param>
<param>
<key>wav_file_folder</key>
<value>r"c:\Users\crazy\Downloads\noaa19\noaa19\noaa19"</value>
</param>
</block>
<block>
<key>rational_resampler_xxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>Lines are transmitted at 2 per second, which equates to a 4160 words per second, or 4160 baud</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>decim</key>
<value>48000</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fbw</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(808, 248)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>rational_resampler_xxx_1</value>
</param>
<param>
<key>interp</key>
<value>4160</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>taps</key>
<value>[]</value>
</param>
<param>
<key>type</key>
<value>fff</value>
</param>
</block>
<connection>
<source_block_id>analog_const_source_x_0</source_block_id>
<sink_block_id>blocks_int_to_float_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_complex_to_mag_0</source_block_id>
<sink_block_id>rational_resampler_xxx_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_float_to_char_0</source_block_id>
<sink_block_id>epy_block_0</sink_block_id>
<source_key>0</source_key>
<sink_key>1</sink_key>
</connection>
<connection>
<source_block_id>blocks_float_to_complex_1</source_block_id>
<sink_block_id>blocks_complex_to_mag_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_float_to_uchar_0</source_block_id>
<sink_block_id>epy_block_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_int_to_float_0</source_block_id>
<sink_block_id>blocks_float_to_char_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_keep_m_in_n_0</source_block_id>
<sink_block_id>epy_block_0</sink_block_id>
<source_key>0</source_key>
<sink_key>2</sink_key>
</connection>
<connection>
<source_block_id>blocks_multiply_const_vxx_0_1</source_block_id>
<sink_block_id>blocks_float_to_uchar_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_multiply_const_vxx_0_1_0</source_block_id>
<sink_block_id>blocks_multiply_const_vxx_0_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>epy_block_1</source_block_id>
<sink_block_id>blocks_float_to_complex_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>epy_block_1</source_block_id>
<sink_block_id>blocks_float_to_complex_1</sink_block_id>
<source_key>1</source_key>
<sink_key>1</sink_key>
</connection>
<connection>
<source_block_id>epy_block_1</source_block_id>
<sink_block_id>blocks_keep_m_in_n_0</sink_block_id>
<source_key>2</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>rational_resampler_xxx_1</source_block_id>
<sink_block_id>blocks_multiply_const_vxx_0_1_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
</flow_graph>