From 4c3920e6309b4e67e3d8d809dd0b5b6cd245fd0c Mon Sep 17 00:00:00 2001 From: tassaron Date: Sun, 9 Jul 2017 21:27:29 -0400 Subject: separated creation of ffmpeg command for future use to sllow editing the command before starting the export --- src/component.py | 10 +++-- src/components/color.py | 3 +- src/components/image.py | 3 +- src/components/sound.py | 4 +- src/components/text.py | 3 +- src/core.py | 93 ++++++++++++++++++++++++++++++++++++++++ src/video_thread.py | 110 +++++------------------------------------------- 7 files changed, 116 insertions(+), 110 deletions(-) (limited to 'src') diff --git a/src/component.py b/src/component.py index 306072c..7c2f753 100644 --- a/src/component.py +++ b/src/component.py @@ -27,6 +27,13 @@ class Component(QtCore.QObject): # change this number to identify new versions of a component return 1 + def properties(self): + ''' + Return a list of properties to signify if your component is + non-animated ('static') or returns sound ('audio'). + ''' + return [] + def cancel(self): # please stop any lengthy process in response to this variable self.canceled = True @@ -57,9 +64,6 @@ class Component(QtCore.QObject): self.progressBarSetText = signal to set progress bar text Use the latter two signals to update the MainWindow if needed for a long initialization procedure (i.e., for a visualizer) - - Return a list of properties to signify if your component is - non-animated ('static') or returns sound ('audio'). ''' for var, value in kwargs.items(): exec('self.%s = value' % var) diff --git a/src/components/color.py b/src/components/color.py index b87f3e9..82b45b3 100644 --- a/src/components/color.py +++ b/src/components/color.py @@ -117,8 +117,7 @@ class Component(Component): height = int(previewWorker.core.settings.value('outputHeight')) return self.drawFrame(width, height) - def preFrameRender(self, **kwargs): - super().preFrameRender(**kwargs) + def properties(self): return ['static'] def frameRender(self, layerNo, frameNo): diff --git a/src/components/image.py b/src/components/image.py index 55fa6dd..94dcb83 100644 --- a/src/components/image.py +++ b/src/components/image.py @@ -46,8 +46,7 @@ class Component(Component): height = int(previewWorker.core.settings.value('outputHeight')) return self.drawFrame(width, height) - def preFrameRender(self, **kwargs): - super().preFrameRender(**kwargs) + def properties(self): return ['static'] def frameRender(self, layerNo, frameNo): diff --git a/src/components/sound.py b/src/components/sound.py index d3589b3..1f43c83 100644 --- a/src/components/sound.py +++ b/src/components/sound.py @@ -31,7 +31,9 @@ class Component(Component): return self.frameRender(self.compPos, 0) def preFrameRender(self, **kwargs): - # super().preFrameRender(**kwargs) + pass + + def properties(self): return ['static', 'audio'] def audio(self): diff --git a/src/components/text.py b/src/components/text.py index 2b1884f..fb6a90e 100644 --- a/src/components/text.py +++ b/src/components/text.py @@ -119,8 +119,7 @@ class Component(Component): height = int(previewWorker.core.settings.value('outputHeight')) return self.addText(width, height) - def preFrameRender(self, **kwargs): - super().preFrameRender(**kwargs) + def properties(self): return ['static'] def frameRender(self, layerNo, frameNo): diff --git a/src/core.py b/src/core.py index db430d1..3d64c3b 100644 --- a/src/core.py +++ b/src/core.py @@ -460,6 +460,99 @@ class Core: except sp.CalledProcessError: return "avconv" + def createFfmpegCommand(self, inputFile, outputFile): + ''' + Constructs the major ffmpeg command used to export the video + ''' + + # Test if user has libfdk_aac + encoders = toolkit.checkOutput( + "%s -encoders -hide_banner" % self.FFMPEG_BIN, shell=True + ) + encoders = encoders.decode("utf-8") + + acodec = self.settings.value('outputAudioCodec') + + options = self.encoder_options + containerName = self.settings.value('outputContainer') + vcodec = self.settings.value('outputVideoCodec') + vbitrate = str(self.settings.value('outputVideoBitrate'))+'k' + acodec = self.settings.value('outputAudioCodec') + abitrate = str(self.settings.value('outputAudioBitrate'))+'k' + + for cont in options['containers']: + if cont['name'] == containerName: + container = cont['container'] + break + + vencoders = options['video-codecs'][vcodec] + aencoders = options['audio-codecs'][acodec] + + for encoder in vencoders: + if encoder in encoders: + vencoder = encoder + break + + for encoder in aencoders: + if encoder in encoders: + aencoder = encoder + break + + ffmpegCommand = [ + self.FFMPEG_BIN, + '-thread_queue_size', '512', + '-y', # overwrite the output file if it already exists. + + # INPUT VIDEO + '-f', 'rawvideo', + '-vcodec', 'rawvideo', + '-s', '%sx%s' % ( + self.settings.value('outputWidth'), + self.settings.value('outputHeight'), + ), + '-pix_fmt', 'rgba', + '-r', self.settings.value('outputFrameRate'), + '-i', '-', # the video input comes from a pipe + '-an', # the video input has no sound + + # INPUT SOUND + '-i', inputFile + ] + + extraAudio = [ + comp.audio() for comp in self.selectedComponents + if 'audio' in comp.properties() + ] + if extraAudio: + for extraInputFile in extraAudio: + ffmpegCommand.extend([ + '-i', extraInputFile + ]) + ffmpegCommand.extend([ + '-filter_complex', + 'amix=inputs=%s:duration=longest:dropout_transition=3' % str( + len(extraAudio) + 1 + ) + ]) + + ffmpegCommand.extend([ + # OUTPUT + '-vcodec', vencoder, + '-acodec', aencoder, + '-b:v', vbitrate, + '-b:a', abitrate, + '-pix_fmt', self.settings.value('outputVideoFormat'), + '-preset', self.settings.value('outputPreset'), + '-f', container + ]) + + if acodec == 'aac': + ffmpegCommand.append('-strict') + ffmpegCommand.append('-2') + + ffmpegCommand.append(outputFile) + return ffmpegCommand + def readAudioFile(self, filename, parent): command = [self.FFMPEG_BIN, '-i', filename] diff --git a/src/video_thread.py b/src/video_thread.py index bd94be3..dde71da 100644 --- a/src/video_thread.py +++ b/src/video_thread.py @@ -33,8 +33,8 @@ class Worker(QtCore.QObject): def __init__(self, parent=None): QtCore.QObject.__init__(self) - self.core = core.Core() - self.core.settings = parent.settings + self.core = parent.core + self.settings = parent.core.settings self.modules = parent.core.modules self.parent = parent parent.videoTask.connect(self.createVideo) @@ -114,8 +114,8 @@ class Worker(QtCore.QObject): self.components = components self.outputFile = outputFile self.extraAudio = [] - self.width = int(self.core.settings.value('outputWidth')) - self.height = int(self.core.settings.value('outputHeight')) + self.width = int(self.settings.value('outputWidth')) + self.height = int(self.settings.value('outputHeight')) self.compositeQueue = Queue() self.compositeQueue.maxsize = 20 @@ -128,7 +128,7 @@ class Worker(QtCore.QObject): self.progressBarUpdate.emit(progressBarValue) # =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~==~=~=~=~=~=~=~=~=~=~=~=~=~=~ - # READ AUDIO AND INITIALIZE COMPONENTS + # READ AUDIO, INITIALIZE COMPONENTS, OPEN A PIPE TO FFMPEG # =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~==~=~=~=~=~=~=~=~=~=~=~=~=~=~ self.progressBarSetText.emit("Loading audio file...") @@ -143,8 +143,7 @@ class Worker(QtCore.QObject): self.staticComponents = {} numComps = len(self.components) for compNo, comp in enumerate(self.components): - properties = None - properties = comp.preFrameRender( + comp.preFrameRender( worker=self, completeAudioArray=self.completeAudioArray, sampleSize=self.sampleSize, @@ -152,101 +151,12 @@ class Worker(QtCore.QObject): progressBarSetText=self.progressBarSetText ) - if properties: - if 'static' in properties: - self.staticComponents[compNo] = \ - comp.frameRender(compNo, 0).copy() - if 'audio' in properties: - self.extraAudio.append(comp.audio()) + if 'static' in comp.properties(): + self.staticComponents[compNo] = \ + comp.frameRender(compNo, 0).copy() - # =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~==~=~=~=~=~=~=~=~=~=~=~=~=~=~ - # DEDUCE ENCODERS - # =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~==~=~=~=~=~=~=~=~=~=~=~=~=~=~ - - # test if user has libfdk_aac - encoders = checkOutput( - "%s -encoders -hide_banner" % self.core.FFMPEG_BIN, shell=True - ) - encoders = encoders.decode("utf-8") - - acodec = self.core.settings.value('outputAudioCodec') - - options = self.core.encoder_options - containerName = self.core.settings.value('outputContainer') - vcodec = self.core.settings.value('outputVideoCodec') - vbitrate = str(self.core.settings.value('outputVideoBitrate'))+'k' - acodec = self.core.settings.value('outputAudioCodec') - abitrate = str(self.core.settings.value('outputAudioBitrate'))+'k' - - for cont in options['containers']: - if cont['name'] == containerName: - container = cont['container'] - break - - vencoders = options['video-codecs'][vcodec] - aencoders = options['audio-codecs'][acodec] - - for encoder in vencoders: - if encoder in encoders: - vencoder = encoder - break - - for encoder in aencoders: - if encoder in encoders: - aencoder = encoder - break - - # =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~==~=~=~=~=~=~=~=~=~=~=~=~=~=~ - # CREATE PIPE TO FFMPEG - # =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~==~=~=~=~=~=~=~=~=~=~=~=~=~=~ - - ffmpegCommand = [ - self.core.FFMPEG_BIN, - '-thread_queue_size', '512', - '-y', # overwrite the output file if it already exists. - - # INPUT VIDEO - '-f', 'rawvideo', - '-vcodec', 'rawvideo', - '-s', str(self.width)+'x'+str(self.height), # size of one frame - '-pix_fmt', 'rgba', - '-r', self.core.settings.value('outputFrameRate'), - '-i', '-', # the video input comes from a pipe - '-an', # the video input has no sound - - # INPUT SOUND - '-i', inputFile - ] - - if self.extraAudio: - for extraInputFile in self.extraAudio: - ffmpegCommand.extend([ - '-i', extraInputFile - ]) - ffmpegCommand.extend([ - '-filter_complex', - 'amix=inputs=%s:duration=longest:dropout_transition=3' % str( - len(self.extraAudio) + 1 - ) - ]) - - ffmpegCommand.extend([ - # OUTPUT - '-vcodec', vencoder, - '-acodec', aencoder, - '-b:v', vbitrate, - '-b:a', abitrate, - '-pix_fmt', self.core.settings.value('outputVideoFormat'), - '-preset', self.core.settings.value('outputPreset'), - '-f', container - ]) + ffmpegCommand = self.core.createFfmpegCommand(inputFile, outputFile) print(ffmpegCommand) - - if acodec == 'aac': - ffmpegCommand.append('-strict') - ffmpegCommand.append('-2') - - ffmpegCommand.append(outputFile) self.out_pipe = openPipe( ffmpegCommand, stdin=sp.PIPE, stdout=sys.stdout, stderr=sys.stdout ) -- cgit v1.2.3