multimedia message android

Android multimedia files are mainly stored in the/data/data/com.android.providers.media/databases directory, the directory has two DB files, one is the internal storage database file (internal.db), One is the memory card database (EXTERNAL-XXXX.DB).The operation of the media file is mainly around these two databases. The two databases are completely identical in structure.Android provides the Mediastore cla

The synced display of lyrics is added to the android multimedia player. Because the lyrics are directly down on the Internet and are in Chinese. Therefore, the encoding format is GBK, gb18030, and other Chinese character encoding formats. Garbled characters are displayed in Ubuntu. When these LRC are pushed to the SD card for parsing, garbled characters are also displayed. The solution is as follows: 1. Co

This article analyzes how mediaplay calls opencore In the android multimedia framework from the perspective of code. SummaryFor the android Multimedia Framework, Google has implemented stagefright in Android 2.2, but opencore is retained;In the new version 2.3, opencore was

stream Precedence (0 = lowest priorities)//Loop loop mode (0 = no loop,-1 = Loop forever) loop or not//Rate Playback rates (1.0 = Normal playback, range 0.5 to 2.0) play back SpeedPool.play (ID,1,1,0, -1,1); } Public int Initsound() {if(Build.VERSION.SDK_INT > +) {Soundpool.builder Builder =NewSoundpool.builder (); Builder.setmaxstreams (2); Audioattributes.builder Builder1 =NewAudioattributes.builder (); Builder1.setlegacystreamtype (Audiomanager.stream_music); Builder.se

"Android:hint= "Music Path" /> LinearLayoutAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"android:orientation= "Horizontal"> ButtonAndroid:layout_weight= "1"Android:layout_width= "0DP"Android:layout_height= "Wrap_content"Android:text= "Play"Android:id= "@+id/bt_play"/> ButtonAndroid:layout_weight= "1"Android:layout_width= "0DP"Android:layout_height= "Wrap_content"Android:text= "Paused"Android:id= "@+id/bt_pause"/> ButtonAndroid:layout_weight= "1"

Android multimedia calls the camera and selects an image from the local albumOverview: The function of this routine is to take photos, automatically compress images, and select images from the local album.Permission to be loaded: Demo: Public class MainActivity extends Activity implements View. onClickListener {private Button mButtonTakePhoto; private Button mButtonGetPhoto; private ImageView mImageViewP

Android multimedia calls the camera and selects an image from the local album,Overview: The function of this routine is to take photos, automatically compress images, and select images from the local album.Permission to be loaded: Demo: Public class MainActivity extends Activity implements View. onClickListener {private Button mButtonTakePhoto; private Button mButtonGetPhoto; private ImageView mImageViewPho

first frame, indicates the current audio playback time and the first frame of the video difference between the value Where the variable is passed maudioplayer->getmediatimemapping (int64_t *realtime_us, int64_t *mediatime_us) {Mutex::autolock Autolock (MLock) got The difference between the two indicates how much of this packet of PCM data has been played. The video in Stagefright is based on the difference between the two timestamps derived from the Audioplayer.Audio and video outputFi

paragraph, is equivalent to making a mappingAnd then into the Android_media_mediacodec_native_setup function.The SETMEDIACODEC function is as follows:Next, look at the structure of Jmediacodec.After several steps to get Mediacodec on the image, you reach the Java layer call Mediacodec.configure (format,surface,null,0)By getting the map in format, it is a hashmap that facilitates the format of the video source into two arrays, and then passes the native_configure downThis paper is derived from c

Disclaimer: The book "Secrets of Android Application Development", which records the logs of the book, references the relevant code and summary, and has no commercial use, it is completely a record of self-learning, and many problems will inevitably occur in learning just now. If there are any mistakes, please criticize them a lot. Today, I started to learn about multimedia operations, because part of our s

Play Music MediaPlayer mediaPlayer = new MediaPlayer ();If (mediaPlayer. isPlaying ()){ MediaPlayer. reset (); // reset to initial state } MediaPlayer. setDataSource ("/mnt/sdcard/god.mp3 "); MediaPlayer. prepare (); MediaPlayer. start (); // starts or resumes playback. MediaPlayer. pause (); // pause playback MediaPlayer. start (); // resumes playback. MediaPlayer. stop (); // stop playing MediaPlayer. release (); // release resources MediaPlayer. setOnCompletionListener (new MediaPlayer. OnCom

engine invokes the Oncompletion.oncompletion () callback method provided by the client programmer. Can be set by calling the Mediaplayer.setoncompletionlistener (Oncompletionlistener) method. The internal playback engine once called the Oncompletion.oncompletion () callback method, indicating that the MediaPlayer object entered the playbackcompleted state. 9.3) when in playbackcompleted state, you can call the start () method again to let the MediaPlayer object enter the started state again.

microphone source Mediarecorder.setAudiosource (MediaRecorder.AudioSource.DEFAULT);//Set the recorded sound output format Mediarecorder.setoutputformat ( MediaRecorder.OutputFormat.DEFAULT);//Set the encoding format of the sound Mediarecorder.setaudioencoder ( MediaRecorder.AudioEncoder.DEFAULT)///Set the file path of the recording output (save) Mediarecorder.setoutputfile (File.getabsolutepath ()); try { Create file File.createnewfile ();//Prepare to record Mediarecorder.prepare ();} catch (Ex