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How to take metadata from .mp3 file and put it to a video as a text using FFmpeg?

百般思念 提交于 2021-01-29 11:23:01
问题 In my previously opened topic: How to make FFmpeg automatically inject mp3 audio tracks in the single cycled muted video I've got detailed explanation from @llogan how to broadcast looped short muted video on youtube automatically injecting audio tracks in it without interrupting a translation. I plan to enhance the flow and the next question I faced with is how to dynamically put an additional text to the broadcast. Prerequisites: youtube broadcast is up and running by ffmpeg short 3 min

Adding multiple audio tracks and subtitles to dash manifest (mpd) with ffmpeg

≯℡__Kan透↙ 提交于 2021-01-29 09:01:30
问题 I'm trying to create a website to stream some videos. For each video, I extract video, audio and subtitles in 3 different folders. It happens that a video has multiple audio tracks and multiple subtitles. I did a lot of research and I don't know how to add all of them in the manifest. Right now, I use this command: ffmpeg -f webm_dash_manifest \ -i video1.mp4 -f webm_dash_manifest \ -i video2.mp4 -f webm_dash_manifest \ -i audio1.webm -f webm_dash_manifest \ -i audio2.webm -f webm_dash

What does -1.#IND mean (double stream output) [duplicate]

半城伤御伤魂 提交于 2021-01-29 07:59:18
问题 This question already has answers here : Why are the return values of these doubles -1.#IND? (3 answers) Closed 6 years ago . I could neither find it via google, search here or on Microsofts helppages... After some extensive calculations, sometimes, when outputting my doubles via std::cout i prints as result on console: -1.#IND There are no modifcations(like precision etc) to the cout-stream. I assume the program wants to tell me about some sort of error, but I can't figure it out :/ It doesn

Sum column in stream using node

↘锁芯ラ 提交于 2021-01-29 07:18:22
问题 My goal is to count the sum of a column which correlates to another column in a csv. For example, I have an input csv what looks like this "500","my.jpg" "500","my.jpg" "200","another.jpg" I want the output to be: [{ bytes: 1000, uri: "my.jpg" }, { bytes:200, "another.jpg" }] Note: I need to do this as a stream as there can be over 3 millions records for a given csv and looping is just too slow. I have managed to accomplish this using awk but I am struggling to implement it in node Here is

How to prevent users and other applications from accessing data saved in a file whose content is protected by a password - only streams?

╄→гoц情女王★ 提交于 2021-01-28 21:52:38
问题 So I am creating a business management system so the project files will be saved locally on the computer but many can access the computer. In order that no one can just open the files and access all the data, I want the file to be able to open just threw my app. In order to do it, I thought that in order to open the file there will be some constant password, that I will pass the stream so this is the only way the file can open. Is this possible? what should I change in order to do it in the

How to read n values from txt file using C++

旧巷老猫 提交于 2021-01-28 21:29:03
问题 I have the following c++ code by which I am reading values from .txt file Could you please help me to improve the code such that I can read not only 14 values but n values from the .txt //reading from text file static std::vector<double> vec; double a[14]; //values got read from txt file int i = 0; void readDATA() { double value; std::ifstream myFile; myFile.open("filename.txt", std::ios::app); if (myFile.is_open()) { std::cout << "File is open." << std::endl; while (myFile >> value) { vec

How to prevent users and other applications from accessing data saved in a file whose content is protected by a password - only streams?

坚强是说给别人听的谎言 提交于 2021-01-28 21:25:36
问题 So I am creating a business management system so the project files will be saved locally on the computer but many can access the computer. In order that no one can just open the files and access all the data, I want the file to be able to open just threw my app. In order to do it, I thought that in order to open the file there will be some constant password, that I will pass the stream so this is the only way the file can open. Is this possible? what should I change in order to do it in the

Reading proper unicode characters into a ReadStream in node.js

孤者浪人 提交于 2021-01-28 11:47:49
问题 Sometimes strange things happen in the world of coding, and I have no explanation at all. :) A text file I have contains the following lines: en …π 1 1 en Œ® 1 1 en Œ© 1 1 en –° 1 1 en —† 1 1 en “§ 1 1 en ◊° 2 2 en ·∏§anƒ´f 1 1 en ·π_ 1 1 en ˝mage:whiteshark-tgoss1.jpg 4 4 en ˝stanbul 114 114 My code is as follows: var fileReadStream = fs.createReadStream(fileName, {encoding: 'utf8'}); fileReadStream.on('data', function(data){ //do something with the data }); When I look at the data element,

Reading proper unicode characters into a ReadStream in node.js

孤街醉人 提交于 2021-01-28 11:39:01
问题 Sometimes strange things happen in the world of coding, and I have no explanation at all. :) A text file I have contains the following lines: en …π 1 1 en Œ® 1 1 en Œ© 1 1 en –° 1 1 en —† 1 1 en “§ 1 1 en ◊° 2 2 en ·∏§anƒ´f 1 1 en ·π_ 1 1 en ˝mage:whiteshark-tgoss1.jpg 4 4 en ˝stanbul 114 114 My code is as follows: var fileReadStream = fs.createReadStream(fileName, {encoding: 'utf8'}); fileReadStream.on('data', function(data){ //do something with the data }); When I look at the data element,

Getting “The inner stream position has changed unexpectedly” in AWS Lambda

房东的猫 提交于 2021-01-28 11:38:49
问题 I am implementing a file upload in ASP.Net core. Everything works fine when testing locally on Windows but when I deploy my code on AWS Lambda, I am getting "System.InvalidOperationException: The inner stream position has changed unexpectedly. at Microsoft.AspNetCore.Http.Internal.ReferenceReadStream.VerifyPosition() at Microsoft.AspNetCore.Http.Internal.ReferenceReadStream.Read(Byte[] buffer, Int32 offset, Int32 count) at System.IO.Stream.CopyTo(Stream destination, Int32 bufferSize)" My code