227 lines
7.7 KiB
Python
227 lines
7.7 KiB
Python
from PIL import Image
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from PyQt5 import QtGui, QtCore, QtWidgets
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import os
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import math
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import subprocess
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import logging
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from component import Component
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from toolkit.frame import BlankFrame, scale
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from toolkit.ffmpeg import openPipe, closePipe, testAudioStream, FfmpegVideo
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from toolkit import checkOutput
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log = logging.getLogger('AVP.Components.Video')
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class Component(Component):
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name = 'Video'
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version = '1.0.0'
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def widget(self, *args):
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self.videoPath = ''
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self.badAudio = False
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self.x = 0
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self.y = 0
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self.loopVideo = False
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super().widget(*args)
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self._image = BlankFrame(self.width, self.height)
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self.page.pushButton_video.clicked.connect(self.pickVideo)
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self.trackWidgets({
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'videoPath': self.page.lineEdit_video,
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'loopVideo': self.page.checkBox_loop,
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'useAudio': self.page.checkBox_useAudio,
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'distort': self.page.checkBox_distort,
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'scale': self.page.spinBox_scale,
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'volume': self.page.spinBox_volume,
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'xPosition': self.page.spinBox_x,
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'yPosition': self.page.spinBox_y,
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}, presetNames={
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'videoPath': 'video',
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'loopVideo': 'loop',
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'xPosition': 'x',
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'yPosition': 'y',
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}, relativeWidgets=[
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'xPosition', 'yPosition',
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])
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def update(self):
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if self.page.checkBox_useAudio.isChecked():
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self.page.label_volume.setEnabled(True)
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self.page.spinBox_volume.setEnabled(True)
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else:
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self.page.label_volume.setEnabled(False)
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self.page.spinBox_volume.setEnabled(False)
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def previewRender(self):
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self.updateChunksize()
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frame = self.getPreviewFrame(self.width, self.height)
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if not frame:
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return BlankFrame(self.width, self.height)
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else:
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return frame
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def properties(self):
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props = []
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if hasattr(self.parent, 'window'):
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outputFile = self.parent.window.lineEdit_outputFile.text()
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else:
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outputFile = str(self.parent.args.output)
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if not self.videoPath:
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self.lockError("There is no video selected.")
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elif not os.path.exists(self.videoPath):
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self.lockError("The video selected does not exist!")
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elif os.path.realpath(self.videoPath) == os.path.realpath(outputFile):
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self.lockError("Input and output paths match.")
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if self.useAudio:
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props.append('audio')
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if not testAudioStream(self.videoPath) \
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and self.error() is None:
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self.lockError(
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"Could not identify an audio stream in this video.")
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return props
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def audio(self):
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params = {}
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if self.volume != 1.0:
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params['volume'] = '=%s:replaygain_noclip=0' % str(self.volume)
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return (self.videoPath, params)
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def preFrameRender(self, **kwargs):
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super().preFrameRender(**kwargs)
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self.updateChunksize()
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self.video = FfmpegVideo(
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inputPath=self.videoPath, filter_=self.makeFfmpegFilter(),
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width=self.width, height=self.height, chunkSize=self.chunkSize,
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frameRate=int(self.settings.value("outputFrameRate")),
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parent=self.parent, loopVideo=self.loopVideo,
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component=self
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) if os.path.exists(self.videoPath) else None
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def frameRender(self, frameNo):
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if FfmpegVideo.threadError is not None:
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raise FfmpegVideo.threadError
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return self.finalizeFrame(self.video.frame(frameNo))
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def postFrameRender(self):
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closePipe(self.video.pipe)
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def pickVideo(self):
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imgDir = self.settings.value("componentDir", os.path.expanduser("~"))
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filename, _ = QtWidgets.QFileDialog.getOpenFileName(
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self.page, "Choose Video",
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imgDir, "Video Files (%s)" % " ".join(self.core.videoFormats)
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)
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if filename:
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self.settings.setValue("componentDir", os.path.dirname(filename))
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self.mergeUndo = False
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self.page.lineEdit_video.setText(filename)
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self.mergeUndo = True
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def getPreviewFrame(self, width, height):
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if not self.videoPath or not os.path.exists(self.videoPath):
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return
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command = [
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self.core.FFMPEG_BIN,
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'-thread_queue_size', '512',
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'-i', self.videoPath,
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'-f', 'image2pipe',
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'-pix_fmt', 'rgba',
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]
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command.extend(self.makeFfmpegFilter())
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command.extend([
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'-codec:v', 'rawvideo', '-',
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'-ss', '90',
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'-frames:v', '1',
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])
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if self.core.logEnabled:
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logFilename = os.path.join(
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self.core.logDir, 'preview_%s.log' % str(self.compPos))
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log.debug('Creating ffmpeg process (log at %s)' % logFilename)
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with open(logFilename, 'w') as logf:
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logf.write(" ".join(command) + '\n\n')
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with open(logFilename, 'a') as logf:
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pipe = openPipe(
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command, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE,
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stderr=logf, bufsize=10**8
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)
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else:
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pipe = openPipe(
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command, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE,
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stderr=subprocess.DEVNULL, bufsize=10**8
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)
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byteFrame = pipe.stdout.read(self.chunkSize)
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closePipe(pipe)
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frame = self.finalizeFrame(byteFrame)
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return frame
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def makeFfmpegFilter(self):
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return [
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'-filter_complex',
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'[0:v] scale=%s:%s' % scale(
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self.scale, self.width, self.height, str),
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]
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def updateChunksize(self):
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if self.scale != 100 and not self.distort:
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width, height = scale(self.scale, self.width, self.height, int)
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else:
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width, height = self.width, self.height
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self.chunkSize = 4 * width * height
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def command(self, arg):
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if '=' in arg:
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key, arg = arg.split('=', 1)
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if key == 'path' and os.path.exists(arg):
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if '*%s' % os.path.splitext(arg)[1] in self.core.videoFormats:
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self.page.lineEdit_video.setText(arg)
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self.page.spinBox_scale.setValue(100)
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self.page.checkBox_loop.setChecked(True)
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return
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else:
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print("Not a supported video format")
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quit(1)
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elif arg == 'audio':
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if not self.page.lineEdit_video.text():
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print("'audio' option must follow a video selection")
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quit(1)
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self.page.checkBox_useAudio.setChecked(True)
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return
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super().command(arg)
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def commandHelp(self):
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print('Load a video:\n path=/filepath/to/video.mp4')
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print('Using audio:\n path=/filepath/to/video.mp4 audio')
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def finalizeFrame(self, imageData):
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try:
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if self.distort:
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image = Image.frombytes(
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'RGBA',
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(self.width, self.height),
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imageData)
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else:
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image = Image.frombytes(
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'RGBA',
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scale(self.scale, self.width, self.height, int),
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imageData)
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self._image = image
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except ValueError:
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# use last good frame
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image = self._image
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if self.scale != 100 \
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or self.xPosition != 0 or self.yPosition != 0:
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frame = BlankFrame(self.width, self.height)
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frame.paste(image, box=(self.xPosition, self.yPosition))
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else:
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frame = image
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return frame
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