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epicyon
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Code Issues 14 Releases Wiki Activity

Wait for image conversion

merge-requests/30/head
Bob Mottram 2021-08-13 20:09:38 +01:00
parent ed1a17f4bd
commit 8ce4407473
1 changed files with 17 additions and 1 deletions
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16
media.py
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@ -8,6 +8,7 @@ __status__ = "Production"
__module_group__ = "Timeline" __module_group__ = "Timeline"
import os import os
import time
import datetime import datetime
import subprocess import subprocess
from random import randint from random import randint
@ -118,12 +119,27 @@ def _convertImageToLowBandwidth(imageFilename: str) -> None:
"""Converts an image to a low bandwidth version """Converts an image to a low bandwidth version
""" """
lowBandwidthFilename = imageFilename + '.low' lowBandwidthFilename = imageFilename + '.low'
if os.path.isfile(lowBandwidthFilename):
try:
os.remove(lowBandwidthFilename)
except BaseException:
pass
cmd = \ cmd = \
'/usr/bin/convert +noise Multiplicative ' + \ '/usr/bin/convert +noise Multiplicative ' + \
'-evaluate median 10% -dither Floyd-Steinberg ' + \ '-evaluate median 10% -dither Floyd-Steinberg ' + \
'-monochrome ' + imageFilename + ' ' + lowBandwidthFilename '-monochrome ' + imageFilename + ' ' + lowBandwidthFilename
print('Low bandwidth image conversion: ' + cmd) print('Low bandwidth image conversion: ' + cmd)
subprocess.call(cmd, shell=True) subprocess.call(cmd, shell=True)
# wait for conversion to happen
ctr = 0
while not os.path.isfile(lowBandwidthFilename):
print('Waiting for low bandwidth image conversion ' + str(ctr))
time.sleep(0.5)
ctr += 1
if ctr > 20:
print('WARN: timed out waiting for low bandwidth image conversion')
break
if os.path.isfile(lowBandwidthFilename): if os.path.isfile(lowBandwidthFilename):
copyfile(lowBandwidthFilename, imageFilename) copyfile(lowBandwidthFilename, imageFilename)
try: try: