gobble | The last build tool you 'll ever need | Chat library

I've got a moderately complicated AVAssetWriterInput setup that I'm using to be able to flip the camera while I'm recording. Basically run two sessions, when the user taps to flip the camera I disconnect session 1 from the output and attach session 2.

This works really great. I can export the video and it plays just fine.

Now that I'm trying to do more advanced stuff with the resulting video some problems are popping up, specifically the AVAssetTracks on the inside of the exported AVAsset are slightly mismatched (always by less than 1 frame). Specifically I'm trying to do this: https://www.raywenderlich.com/6236502-avfoundation-tutorial-adding-overlays-and-animations-to-videos but a significant amount of the time there ends up being an all black frame, sometimes at the head of the video, sometimes at the tail of the video, that appears for a split second. The time varies, but it's always less than a frame (see logs below, 1/30 or 0.033333333s)

I did a bit of back-and-forth debugging and I managed to record a video using my recorder that consistently produced a trailing black frame, BUT using the tutorial code I have not been able to create a video that produces a trailing black frame. I added some similar logging (to what's pasted below) to the tutorial code and I'm seeing deltas of no greater than 2/100ths of a second. So around 1/10th of 1 frame at most. It's even a perfect 0 on one occasion.

So my sense right now is that what's happening is I record my video, both assetInputs start to gobble data, and then when I say "stop" they stop. The video input stops with the last complete frame, and the audio input does similarly. But since the audio input is sampling at a much higher rate than the video they're not synced up perfectly and I end up with more audio than video. This isn't a problem until I compose an asset with the two tracks and then the composition engine thinks I mean "yes, actually use 100% of all the time for all tracks even if there is a mismatch" which results in the black screen.

(Edit: This is basically what's happening - https://blender.stackexchange.com/questions/6268/audio-track-and-video-track-are-not-the-same-length)

I think the correct solution is, instead of worrying about the composition construction and timing and making sure it's all right, just make the captured audio and video match up as nicely as possible. Ideally 0, but I'd be fine with anything around 1/10th of a frame.

So my question is: How do I make two AVAssetWriterInputs, one audio and one video, attached to a AVAssetWriter line up better? Is there a setting somewhere? Do I mess with the framerates? Should I just trim the exported asset to the length of the video track? Can I duplicate the last captured frame when I stop recording? Can I have it so that the inputs stop at different times - basically have the audio stop first and then wait for the video to 'catch up' and then stop the video? Something else? I'm at a loss for ideas here :|

MY LOGGING

I would like to count the number of English words in a string of text.

I'm trying to initialize a hashref containing the results of several expressions. I would expect expressions that return undefined results to assign undef to the appropriate key. Instead, the assignment just gobbles up the next key as though the expression was never there to begin with.

A quick example is probably easier to understand:

I am quite new to programming and today decided to attempt and create a node.js and puppeteer project with the purpose of scraping website into a .txt file. I ran into issues straight away since for the most part I have no idea what I'm doing. After installing node.js and puppeteer, I was guided by some videos and articles I found to create my first project. In the command prompt using mkdir and later cd I was able to create and access the new directory, but I started running into problems with npm init. It only places the file package.json in the repository, but there isn't a package-lock or node_modules file anywhere. No idea what they do but thought this was a problem. When I open cmd and try to run the app by typing node app.js it returns Error: Cannot find module 'C:\Users\emili\app.js' along with some other gobble. What should I do, to be able to run the simple application I wrote?

Java's keytool has a parameter called -keypass which allows you to set a (separate) password to protect your private key, in addition to the password used for the entire key store.

According to the documentation:

The value of -keypass is a password used to protect the private key of the generated key pair. If a password is not provided, then the user is prompted for it. If you press the Return key at the prompt, then the key password is set to the same password as the keystore password. The -keypass value must have at least six characters.

However, when I leave out the password in the call to this command I don't seem to get prompted at all, at least not when this is used in combination with -genkeypair to generate an RSA key pair. Instead I just get the general help page. If I use "" to force an "empty" password then it (correctly) tells me that the password should at least be 6 characters.

Is there a way to force the keytool to prompt for a key specific password instead of having to offer it on the command line according to the documentation of -genkeypair?

I've tested this against Java 11 LTS:

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• Problem: After drawing the rectangle, the next plot is far away with a large white space in between.
• Desired Output: Heatmap should appear immediately after the rectangle may with one or two white lines.

I guess the problem is the drawing of the rectangle. Here I need some help. Thank you.

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Not sure what direction to take. Here is the code so far:

I built a media playing app with controls in Fragments. The main Activity hosts all these Fragments. These Fragments keep a reference to the main Activity and call methods in the main Activity when there is a control change.

Now I need to prevent the main Activity from being gobbled up while it is in the background. What is the best way to make this possible?

Currently, my research makes it look like I will need to move just about all my main Activity code to a main foreground service and have forwarding methods in the main Activity. Is that how it needs to be done or is there an easier way?

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