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the end result look something like this (If you want to achieve a stream of frames that is. Storing as video just a demonstration of using opencv on the screen captured): img = ImageGrab.grab(bbox=(100,10,400,780)) #bbox specifies specific region (bbox= x,y,width,height) img_np = np.array(img) More @Wikipedia
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- Capture video data from screen in Python - Stack Overflowthe end result look something like this (If you want to achieve a stream of frames that is. Storing as video just a demonstration of using opencv on the screen captured): img = ImageGrab.grab(bbox=(100,10,400,780)) #bbox specifies specific region (bbox= x,y,width,height) img_np = np.array(img)
- How to change the order of DataFrame columns? - Stack OverflowNote that this will only return a reindexed data frame - not change the df instance which is being used. If you want to use the reindexed df, simply use the returned value: df2 = df.reindex(['B', 'C', 'A'], axis=1). Thanks for this answer! –
- Record 5 seconds segments of audio using MediaRecorder and then upload ...These metadata are necessary for the software that will then read the file to know how it should parse the actual data that is contained in the file. The MediaRecorder API is in a strange position here, since it must be able to at the same time write these metadata, and also add non-determined data (it is a live recorder).
- c# - Record and replay UDP packets with timing - Stack OverflowDesign a custom file structure in binary format, Holding data about the time the Datagram was recieved followed by the UDP Datagram itself. You can then have a program read this file back, Find out at what time the UDPs payload was delivered. This will give you what you need to replay the packets and store it for later replay with all native C# ...
- Send MediaRecorder blobs to server and build file on backendMy objective is send the blobs generated by MediaRecorder.ondataavailable event (which returns small blobs) to the server and after finishing recording build the complete file on the server to store it. On the browser if I push all those small blobs into an array and then do this: var blob = new Blob(recordedBlobs, {type: 'video/mp4'}); I get ...
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