hidden video recorder android

. To increase support for recorded audio and video, the Android system provides a Mediarecorder class. The use of this class is also very simple, let's take a look at this class.Very similar to the MediaPlayer class Mediarecorder has its own state diagram. Here is an introduction to the various states of Mediarecorder:1) Initial: Initial state, when a Mediarecorder object is created using the new () method,

, resources are recycled. That is to say, you can use the third method to convert the Bitmap of the first frame of the captured video to any desired size. The third method can also obtain the thumbnail of the image in the memory card. Bitmap bitmap = ThumbnailUtils.createVideoThumbnail(path1, Thumbnails.MINI_KIND); bitmap = ThumbnailUtils.extractThumbnail(bitmap, 210, 210); A MediaMetadataRetriever class is added from API 10 to obtain media file info

Android audio and video went deep into 1949th using ijkplayer as a video player (with source code download) and androiw.player Project addressHttps://github.com/979451341/MyijkplayerSome time ago, I thought it was difficult to make FFmpeg a video player. Although there was no problem in playing the

video into any desired size, and the third method can also get a thumbnail image of the memory card.Bitmap Bitmap = Thumbnailutils.createvideothumbnail (path1, thumbnails.mini_kind); Bitmap = Thumbnailutils.extractthumbnail (Bitmap, 210, 210);A new class of mediametadataretriever can be used to get media files from APINew Mediametadataretriever (); Mmr.setdatasource ("/sdcard/33.mp4"); Bitmap Bitmap = Mmr.getframeattime (); Image.setimagebitmap (

First, prefaceRecently, all kinds of video Live app are everywhere, all kinds of PA screen, of course, we also need to experience, about the video live software is not introduced here, in the people who are not technology, live is a trend, is a kind of entertainment, but as a high-tech, we have to look, more importantly, learning technology, In fact, Android

Android video processing-process the first thumbnail of a video A class has been added since API 8: Android. media. ThumbnailUtils provides three static methods: one to obtain the Bitmap obtained from the first frame of the video, and the other two to scale down the image. p

. AudioEncoder. AMR_NB); // Audio Encoding Method Recorder. setOutputFile ("/mnt/sdcard/itcast. amr "); Recorder. prepare (); // expected preparation Recorder. start (); // starts to burn ... Recorder. stop (); stop burning Recorder. reset (); // reset

The video recording function is coming soon. In AndroidSDKThere are related classes: Android. Media. mediarecorder, of course, because the simulator does not provide the necessary hardware facilities, it cannot be implemented during the learning process. Media can play files from anywhere: an actual file resource, a file in the system, or an available network link.The following describes howTo play an avail

to prepare are set parameters. You can also set other parameters to view the differences. Prepare means that the recording device starts to prepare to capture the data of the input device and encode the data. This means that everything is ready, just wait for the first moment. For the specific code of prepare, see: /** * Prepares the recorder to begin capturing and encoding data. This method * must be called after setting up the desired

Android Media (recording, playing music, playing video, etc) /*** Recording ** @ param incomingNumber */public void startRecorder (String incomingNumber) {// 1. create a recorder instance recorder = new MediaRecorder (); // 2. set the path of the data source (VOICE_CALL simulator and foreign mobile phones do not suppor

Document directory ① Use mediarecoder ② Use localsocket ③ Mediarecorder Problems Http://www.cnblogs.com/skyseraph/archive/2012/03/31/2427593.html 0 This article is only a series of coherence. In fact, mediarecoder has been used in the previous series of blog posts. For details, see the previous Android series blog Android (19) 1 Overview Use mediarecorder of And