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Http://www.cnblogs.com/skyseraph/archive/2012/04/04/2431771.html
1 hard Coding
Soft Encoding
Hard Coding: By calling the camera recording video that comes with the Android system, it actually calls the underlying HD encoding hardware module, that is, the video card, which does not use the CPU and is fast.
Soft Encoding: Use the CPU for encoding, such as common C/C ++ code. Generally, the binary files generated by compilation are all slow. For example
Objective
Keywords: Vitamio, Vplayer, Android player, Android AV, Android open source player
This chapter of the Android universal player local playback of the main functions (cache p
Android audio and video goes deep into thirteen OpenSL ES to create a music player, which can pause and adjust the volume (with source code download), androidopensl
Project addressHttps://github.com/979451341/OpenSLAudioOpenSL ES is a public audio API developed based on NDK, that is, the underlying C language. It can be used to achieve standardized, high-performance, and low-response-time audio functions.Th
Android. media. ThumbnailUtilsA new class is added from API 8: android. media. the ThumbnailUtils class 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. Public static Bitmap createVideoThumbnail (String filePath, int kind) the
1) socket-based, suitable for simple video monitoring solutions. The server compresses the image, and the mobile phone uses the socket to read the data and decode the display. It is best to use Java for the network and ndk for decoding.
2) based on RTSP/RTP. Suitable for the adaptation of existing RTSP Streaming Media Servers. Android supports RTSP Streaming Media
: nullnull); mPreviewState = K_STATE_BUSY; // switch shutterBtnConfig();}2.5 Stop previewing and releasing the cameraWhen the program is finished using the camera, it is necessary to do the cleanup action. In particular, the camera object must be released, otherwise it may cause other apps to crash, including new instances of our own application. After the previewed surface is destroyed, you can stop the preview and release the camera's action. Public void surfacedestroyed(Su
Android Implementation MP3 playerBefore the exam, this well-done project has not had time to summarize. Although in the period of doing the project, the use of the various techniques are recorded as a blog, but there should be a general summary and summing up.This is the first large-scale project of its kind, which is the project that the Mars big video last introduced in the first quarter. But I insist on doing it, or receiving a lot of goods. I fini
PrefaceThis chapter provides a very practical function-download online videos. We also need to think about the product design and how to better integrate the newly added functions into existing products when it comes to multithreading, thread update, and other technologies, it's not just a simple interface. You are welcome to discuss product design and technical details!
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Developers of Android PC OS remix OS today announced the launch of Remixos Player, which allows users to run Android apps in Windows (Getting Started tutorial ty300.com). Remixos player is essentially an Android emulator, although the developer claims it is the fastest and m
Recently, I am working on an Android phone to obtain the music information of a third-party music player. At first, it was a headache. It was too difficult to collect third-party information. I read the blog post about how to listen to the music playing information of the system, it is found that the broadcast will be sent when the next music is played, and the broadcast will contain the next piece of infor
Objective
Create a complete available Android player has many features and details to be completed, but also involves a variety of knowledge and content, this chapter will be combined with fragment, Viewpager to build the main player interface, and achieve local playback basic functions. Series of articles to provide screenshots, code description, source downloa
Log:
09-13 11:46:42.093 14778 17309 I dalvikvm: Ljava/lang/RuntimeException;: No memory in memObj09-13 11:46:42.093 14778 17309 I dalvikvm: at android.database.CursorWindow.native_init(Native Method)09-13 11:46:42.093 14778 17309 I dalvikvm: at android.database.CursorWindow.
Analysis:
Check the code location. This exception occurs when the mediaprovider server responds to query_transaction, because the memory address that parcel points to is null.
Considering the entire call process,
Android starts mediascannerservice to scan multimedia files in the system, and then adds the information of these multimedia files to the multimedia database, the application obtains the multimedia information from the multimedia database instead of the SD card. That is to say, if some multimedia files are added or deleted after the instance is started, the multimedia database will not be automatically refreshed.
Now our lives have changed. We have iPad, iPhone, and Android on our hands.
I believe many cainiao must ask how to share media resources on their computers?
My current method:
1. Use an FTP server
Then, Android has FTP clients.
For Windows server, you can use Serv-u ftp server or the free filezilla server.
2. Use an HTTP server
For example, the simplest HFS
Off
internal playing engine callsOnerrorlistener. onerror ()Method. The client programmer can callMediaplayer. setonerrorlistener (Android. Media. mediaplayer. onerrorlistener)Method to registerOnerrorlistener.
2.1) once an error occurs,MediaplayerThe object will enterErrorStatus.
2.2) to reuseErrorStatusMediaplayerObject that can be calledReset ()Method to restore this objectIdleStatus.
2.3) registerOner
Preface
Keywords: Vitamio, VPlayer, Android player, Android audio and video, and Android open-source player
This chapter Android universal Player Local playback of the main functions (C
resources.Next, if you need to play a music file, you can encapsulate the playback logic by using the player MediaPlayerthat comes with Android: //Start Public voidStart (String path) {Try{mediaplayer.reset (); Mediaplayer.setdatasource (path); Mediaplayer.prepare (); Mediaplayer.start (); Mediautils.currentstate=Constants.play_start; } Catch(IOException e) {e.prints
First, paste the program running result of this article. The above is the playing/stopping audio, and the progress can be adjusted using SeekBar. below is the playing/stopping video, and the progress is also adjusted using SeekBar:
Source code of main. xml:
The source code of this program is a bit long:
Pack
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