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'''
When using commandline mode, this module's object handles interpreting
the arguments and giving them to Core, which tracks the main program state.
Then it immediately exports a video.
'''
from PyQt5 import QtCore
import argparse
import os
import sys
import time
import signal
import logging
from . import core
log = logging.getLogger('AVP.Commandline')
class Command(QtCore.QObject):
"""
This replaces the GUI MainWindow when in commandline mode.
"""
createVideo = QtCore.pyqtSignal()
def __init__(self):
super()
self.core = core.Core()
core.Core.mode = 'commandline'
self.dataDir = self.core.dataDir
self.canceled = False
self.settings = core.Core.settings
# ctrl-c stops the export thread
signal.signal(signal.SIGINT, self.stopVideo)
def parseArgs(self):
self.parser = argparse.ArgumentParser(
description='Create a visualization for an audio file',
epilog='EXAMPLE COMMAND: main.py myvideotemplate.avp '
'-i ~/Music/song.mp3 -o ~/video.mp4 '
'-c 0 image path=~/Pictures/thisWeeksPicture.jpg '
'-c 1 video "preset=My Logo" -c 2 vis layout=classic'
)
self.parser.add_argument(
'-i', '--input', metavar='SOUND',
help='input audio file'
)
self.parser.add_argument(
'-o', '--output', metavar='OUTPUT',
help='output video file'
)
self.parser.add_argument(
'--export-project', action='store_true',
help='ignore -i and -o, use input and output from project file'
)
self.parser.add_argument(
'--test', action='store_true',
help='run tests, generate logfiles, then exit'
)
self.parser.add_argument(
'--debug', action='store_true',
help='create bigger logfiles while program is running'
)
# optional arguments
self.parser.add_argument(
'projpath', metavar='path-to-project',
help='open a project file (.avp)', nargs='?')
self.parser.add_argument(
'-c', '--comp', metavar=('LAYER', 'ARG'),
help='first arg must be component NAME to insert at LAYER.'
'"help" for information about possible args for a component.',
nargs='*', action='append')
self.args = self.parser.parse_args()
if self.args.debug:
core.FILE_LOGLVL = logging.DEBUG
core.STDOUT_LOGLVL = logging.DEBUG
core.Core.makeLogger()
if self.args.test:
self.runTests()
quit(0)
if self.args.projpath:
projPath = self.args.projpath
if not os.path.dirname(projPath):
projPath = os.path.join(
self.settings.value("projectDir"),
projPath
)
if not projPath.endswith('.avp'):
projPath += '.avp'
success = self.core.openProject(self, projPath)
if not success:
quit(1)
self.core.selectedComponents = list(
reversed(self.core.selectedComponents))
self.core.componentListChanged()
if self.args.comp:
for comp in self.args.comp:
pos = comp[0]
name = comp[1]
args = comp[2:]
try:
pos = int(pos)
except ValueError:
print(pos, 'is not a layer number.')
quit(1)
realName = self.parseCompName(name)
if not realName:
print(name, 'is not a valid component name.')
quit(1)
modI = self.core.moduleIndexFor(realName)
i = self.core.insertComponent(pos, modI, self)
for arg in args:
self.core.selectedComponents[i].command(arg)
if self.args.export_project and self.args.projpath:
errcode, data = self.core.parseAvFile(projPath)
for key, value in data['WindowFields']:
if 'outputFile' in key:
output = value
if not os.path.dirname(value):
output = os.path.join(
os.path.expanduser('~'),
output
)
if 'audioFile' in key:
input = value
self.createAudioVisualisation(input, output)
return "commandline"
elif self.args.input and self.args.output:
self.createAudioVisualisation(self.args.input, self.args.output)
return "commandline"
elif 'help' not in sys.argv and self.args.projpath is None and '--debug' not in sys.argv:
self.parser.print_help()
quit(1)
return "GUI"
def createAudioVisualisation(self, input, output):
self.core.selectedComponents = list(
reversed(self.core.selectedComponents))
self.core.componentListChanged()
self.worker = self.core.newVideoWorker(
self, input, output
)
# quit(0) after video is created
self.worker.videoCreated.connect(self.videoCreated)
self.lastProgressUpdate = time.time()
self.worker.progressBarSetText.connect(self.progressBarSetText)
self.createVideo.emit()
def stopVideo(self, *args):
self.worker.error = True
self.worker.cancelExport()
self.worker.cancel()
@QtCore.pyqtSlot(str)
def progressBarSetText(self, value):
if 'Export ' in value:
# Don't duplicate completion/failure messages
return
if not value.startswith('Exporting') \
and time.time() - self.lastProgressUpdate >= 0.05:
# Show most messages very often
print(value)
elif time.time() - self.lastProgressUpdate >= 2.0:
# Give user time to read ffmpeg's output during the export
print('##### %s' % value)
else:
return
self.lastProgressUpdate = time.time()
@QtCore.pyqtSlot()
def videoCreated(self):
quit(0)
def showMessage(self, **kwargs):
print(kwargs['msg'])
if 'detail' in kwargs:
print(kwargs['detail'])
@QtCore.pyqtSlot(str, str)
def videoThreadError(self, msg, detail):
print(msg)
print(detail)
quit(1)
def drawPreview(self, *args):
pass
def parseCompName(self, name):
'''Deduces a proper component name out of a commandline arg'''
if name.title() in self.core.compNames:
return name.title()
for compName in self.core.compNames:
if name.capitalize() in compName:
return compName
compFileNames = [
os.path.splitext(
os.path.basename(mod.__file__)
)[0]
for mod in self.core.modules
]
for i, compFileName in enumerate(compFileNames):
if name.lower() in compFileName:
return self.core.compNames[i]
return
return None
def runTests(self):
core.FILE_LOGLVL = logging.DEBUG
core.Core.makeLogger()
from . import tests
test_report = os.path.join(core.Core.logDir, "test_report.log")
tests.run(test_report)
with open(test_report, "r") as f:
output = f.readlines()
print("".join(output))
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