^ 4. |[tmp] [flip]| 5. +-----> crop --> vflip -------+ 在这个滤镜链图中，利用 split 滤镜把输入流分离成了两路流，其中一路通过 crop 滤镜 和 vfilp 滤镜的同一路级联应用，再同另外一路一起通过 overlay 滤镜处理的流合成进行输出。则 可以采用如下的命令行实现： "split [main][tmp]; [tmp] crop=iw:ih/2:0:0, vflip [flip]; [main][flip] overlay=0:H/2" OUTPUT 这样最终输出将是视频上部是原始，下部是上部的镜像。（倒影效果） 同一路的滤镜间用逗号(‘,’)进行分割，不同路的滤镜间用分号(‘;’)进行分割。在这个例子里 面 crop 和 vflip 是在同一路中的滤镜， 处理输出的第二路流被命名为 [tmp] ，它又被 crop 滤镜处理裁去下半部视频，然 后通过 vflip 进行了水平镜像（垂直翻转，即把视频镜像到下半部了）。这是整个输出被命名 为 flip 。再把 [main] 与 flip 通过 overlay 进行覆盖合成，即把源输入通过 split 滤镜获 得的 [main] 的上半部分覆盖到由 crop 和 vflip 滤镜级联处理的输出（这里的

apply_async(args=[filename, selection], routing_key="image.crop") >>> UpdateReccomendationsTask.apply_async(routing_key="misc.recommend") Later, if the crop task is consuming a lot of resources, we can bind some some new workers to handle just the "image.crop" task, by creating a new queue that binds to "image.crop”. 2.2.5 AMQP options • mandatory This sets the delivery to be mandatory. An exception will be

routing_key="image.crop") >>> UpdateReccomendationsTask.apply_async(routing_key="misc. recommend") Later, if the crop task is consuming a lot of resources, we can bind bind some new workers to handle just the "image.crop" task, by creating a new queue that binds to "image.crop”. AMQP options mandatory This sets the delivery to be mandatory. An exception will be raised

orientation: self.imageOrientation) } else { return nil } Crop In Background Crop let rect = CGRect(origin: CGPoint(x: 0, y: 0), size: self.size) UIGraphicsBeginIm

Device Network Stream splitter Video ES 1 Video Filter (scale/frc/crop/ ..) Video ES 2 Video Filter (scale/frc/crop/..) Audio ES1 Audio Filter Video Encoder Video Renderer Audio Encoder

Documentation, Release 2.0.3 (stable) ... routing_key="image.crop") >>> UpdateReccomendationsTask.apply_async(routing_key="misc.recommend") Later, if the crop task is consuming a lot of resources, we can bind some some new workers to handle just the "image.crop" task, by creating a new queue that binds to "image.crop”. 2.2.6 AMQP options NOTE The mandatory and immediate flags are not supported by amqplib at this

... routing_key="image.crop") >>> UpdateReccomendationsTask.apply_async(routing_key="misc. recommend") Later, if the crop task is consuming a lot of resources, we can bind bind some new workers to handle just the "image.crop" task, by creating a new queue that binds to "image.crop”. AMQP options NOTE The mandatory and immediate flags are not supported by amqplib at this point

processor (filer.thumbnail_processors.scale_and_crop_with_subject_location) to be listed in settings.py in place of easy_thumbnails.processors.scale_and_crop: THUMBNAIL_PROCESSORS = ( 'easy_thumbnails processors.autocrop', # 'easy_thumbnails.processors.scale_and_crop', # disable this one 'filer.thumbnail_processors.scale_and_crop_with_subject_location', 'easy_thumbnails.processors.filters' processors.colorspace', 'easy_thumbnails.processors.autocrop', 'filer.thumbnail_processors.scale_and_crop_with_subject_location', 'easy_thumbnails.processors.filters' ) New database tables will need

processor (filer.thumbnail_processors. scale_and_crop_with_subject_location) to be listed in settings.py in place of easy_thumbnails.processors.scale_and_crop: THUMBNAIL_PROCESSORS = ( 'easy_thumbnails.processors 'easy_thumbnails.processors.autocrop', # 'easy_thumbnails.processors.scale_and_crop', # disable this one 'filer.thumbnail_processors.scale_and_crop_with_subject_location', 'easy_thumbnails.processors.filters', ) from previous page) 'easy_thumbnails.processors.autocrop', 'filer.thumbnail_processors.scale_and_crop_with_subject_location', 'easy_thumbnails.processors.filters' ) New database tables will need to

processor (filer.thumbnail_processors.scale_and_crop_with_subject_location) to be listed in settings.py in place of easy_thumbnails.processors.scale_and_crop: THUMBNAIL_PROCESSORS = ( 'easy_thumbnails processors.autocrop', # 'easy_thumbnails.processors.scale_and_crop', # disable this one 'filer.thumbnail_processors.scale_and_crop_with_subject_location', 'easy_thumbnails.processors.filters' processors.colorspace', 'easy_thumbnails.processors.autocrop', 'filer.thumbnail_processors.scale_and_crop_with_subject_location', 'easy_thumbnails.processors.filters' ) New database tables will need