media

问题 I am programming media player using VLCKit. I want to take preview picture of the video. How can i do that using VLCKit or maybe another tools? P.S. I've already used AVFoundation and QTKit, but it didn't work. They argue on video format (.mkv) 回答1: You want to use VLCKit's thumbnailer class. It is doing everything for you. 来源： https://stackoverflow.com/questions/38827400/how-to-get-first-video-frame

问题 I would like to make a very simple C# windows form application (or WPF) that can be controlled by the Media Center Remote Control that came with the computer. It's a very simple app that has an event listener that receives messages from the remote and calls the appropriate function. I found this article that explains how to do it yet I was not able to follow up: http://msdn.microsoft.com/en-us/library/windows/desktop/bb417079.aspx I've read the article many times yet I have no clue how

问题 Edit - ANSWER: I found the solution thanks to @LexLi and @Amy; I accidentally created a .NET Core console application instead of .NET Framework. Once I remade it as a .NET Framework app it had "System.Media" available. I'm relatively new (only a few weeks in) to learning C#, but I'm trying to make a console application text game, and I have a typewriter method I'm using to print messages to the display. public static void typewriter(string s) { // This method types strings out slowly. for

问题 I'm making my own plugins that makes multiple media queries automatically by writing single @include line in SCSS. So when I type @include medias($bp-values, width); , the output should be like this: @media all and (min-width: 564px) { width: 200px; } @media all and (min-width: 768px) { width: 300px; } @media all and (min-width: 992px) { width: 400px; } @media all and (min-width: 1200px) { width: 500px; } And this is the code: $breakpoints: ( 564, 768, 992, 1200 ); $bp-values: ( width: (

问题 I've P/Invoked the mciSendString method from WinMM.dll: [DllImport("winmm.dll")] private static extern long mciSendString(string strCommand, StringBuilder strReturn, int iReturnLength, IntPtr hwndCallback); I can play, pause, and stop songs (I can also open/close the CD drive, but that's not important). Now I want my user to be able to skip to a certain part in a song (e.g. 1:21). I've looked at the seek functions documentation and it seems pretty staightforward except that I can't figure out

问题 I am currently extracting, decoding, editing and re-encoding a video on Android using MediaCodec and MediaExtractor on Android. In the course of this process I would like to give users some information on the progress. I am already counting how many frames were extracted, decoded and encoded. In order to compute a percentage and to show users how far the process is, I would need the total number of frames in the original stream. However, I am unable to find a method in the MediaExtractor.

问题 //inputStream is a MP4 file in scard. // new FileInputStream(file.getAbsolutePath()); MediaMetadataRetriever retriever = new MediaMetadataRetriever(); FileDescriptor fileDescriptor = inputStream.getFD();// value 61 retriever.setDataSource(fileDescriptor); result: java.lang.RuntimeException: setDataSource failed: status = 0xFFFFFFEA 来源： https://stackoverflow.com/questions/30273411/setdatasource-runtimeexception-0xffffffea

问题 i added some image to my wordpress library. now i need to retrieve one of them by name and get it's URL. note that i didn't attach them in any post. thanks for your attention. 回答1: A straightforward approach - using a direct SQL SELECT statement with the WordPress database abstraction API: $wpdb->get_var( $wpdb->prepare(" SELECT ID FROM $wpdb->posts WHERE post_title = %s AND post_type = '%s' ", $title, $type) ); You can incorporate this into a function (you can place in your functions.php

问题 I'm trying to make a video download panel for Chrome likes Real Player's one ( a DLL plugin ).. My question is : "Is it possible to use NPAPI functions such as NPP_NewStream, NPP_StreamAsFile, NPP_DestroyStream... to catch the media stream URL of flash-player ? " If not, then what part of NPAPI do I have to use ? 回答1: Using the NPAPI you can't magically spy on other components in the browser, the stream functions are for dealing with streams for your own plugin instance. If the Flash player

问题 I'm trying to make a video download panel for Chrome likes Real Player's one ( a DLL plugin ).. My question is : "Is it possible to use NPAPI functions such as NPP_NewStream, NPP_StreamAsFile, NPP_DestroyStream... to catch the media stream URL of flash-player ? " If not, then what part of NPAPI do I have to use ? 回答1: Using the NPAPI you can't magically spy on other components in the browser, the stream functions are for dealing with streams for your own plugin instance. If the Flash player