Android audio and video goes deep into the 16 FFmpeg streaming mobile phone camera to achieve live broadcast (with source code download), androidffmpeg
Source Code addressHttps://github.com/979451341/RtmpCamera/tree/masterAfter configuring the RMTP server, paste it here.1. Configure the RTMP Server
I don't want to post two blogs on mac and windows respectively.Set up an RTMP server on MACHttps://www.jianshu.com/p/6fcec3b9d644This is on windows, and th
->time_base.den = fps;Video_st->codec = Pcodecctx;Video_st->codecpar->codec_tag = 0;Avcodec_parameters_from_context (Video_st->codecpar, pcodecctx);See if the output URL is valid and write to the file header based on the output formatif (avio_open(ofmt_ctx->pb, out_path, AVIO_FLAG_READ_WRITE) The next step is to process the data sent by camera.Convert data formatjbyte *in = env->GetByteArrayElements(buffer_, NULL);Get the cached picture size based on
Recently, I have studied the real-time video network transmission problem of Android. I have spent a lot of effort on video processing. I have summarized the following five solutions and compared them.
Take video transmission of 320x240 as an Example
Solution
Compression rate
Compression/Transmission Mode
Real-time
Average Traffic consumption
Transmission Distance
Use the callback function of camera to send the origin
Fourth, Android build system and custom Android platform system4.1Android compilation systemAndroid's source code is composed of hundreds of thousands of files, these files are interdependent, and some are independent of each other, they are placed in different directories by function or type, for this big project, Android through its own compilation system to co
Download Android Development sdk ndk and android development sdkndk
Version 2014.7
ADT BundleHttp://dl.google.com/android/adt/adt-bundle-windows-x86-20140702.zipHttp://dl.google.com/android/adt/adt-bundle-windows-x86_64-20140702.zipHttp://dl.google.com/android/adt/adt-bundle
Logcat
Dump a system message log. These messages include the stack trace when the simulator throws an error. Android log
A logging class used to write messages to log files on the simulator. If you run logcat on ddms, you can view messages in real time. In yourCodeAdd several log writing method calls.To use the log class, you only need to call log. V () (detailed), log. D () (Debug), log. I () (Information), log. W () (warning) or log. E () (error),
Wang Wenjun, chief architect of Xiaomi technology miui, confirmed the topic of his speech: compilation, installation and operation of Android programs.
Lecturer profile: Wang Wenjun, Master of Science and Technology University of China, formerly IBM system engineer, is now the chief architect of Xiaomi technology miui and author of The Open Source C compiler project UCC.
Topic Introduction: compile, install, and run
For the development platform, if the data storage has good support, then the development of the application will have a great role in promoting.
In general, there are three ways to store data: One is a file, one is a database, and the other is a network. Where files and databases may be used a little more, the file is easy to use, the program can define its own format; The database used a bit annoying lock some, but it has its advantages, such as in the massive data performance is superior, the
Frame Android Studio Downloads installation and configuration development environment tutorialHttp://www.111cn.net/sj/android/74261.htm
Win7x64 Android Stuido installation and building development environment problem solvingHttp://www.111cn.net/sj/android/74265.htm
Mac Download install
beforehand.
In addition, in order to simulate the heavy background work of real app, another 3 threads were created to try to preempt CPU resources by doing floating-point budgeting.
The measurement performance of the index, ListView continuous downward scrolling, measuring the average frame rate, measured five times, the average, the final performance test results are as follows:
Testing the machine here is MX3, the left side is the direct use of the Staticlayout scheme, the right is the
Tutorial Index
Android drag and drop tutorial
Android plotting (drawables) Tutorial
Android styles and themes tutorial
Live wallpaper tutorial
Homescreen widgets tutorial
Custom views for Android (M m views) Tutorial
Android supports support for different screen siz
fps_images.png image in the assetsdirectory, in the lower left corner of the FPS used in the font is from this file, the back will also find that the game materials, under normal circumstances are put under the Assets Directory; finally, in the libs directory is cocos2d-android.jar, is a cocos2d-android-1 engine that implements various movements and effects such as scenes, layers, Sprite, and those needed
Objective:
Today it's still a hot topic around the recent interview. Android 6.0 right fit to sum up learning, in fact, Android 6.0 rights matching our company is only started this May, is relatively late, but now Android more than 6.0 devices more and more, So the Android 6.0 privilege is essential, and here's how ou
Some of the tools are charged, but the vast majority are free.FlowupThis is a tool to help you track the overall performance of your app and drill down into key performance data such as FPS, memory, CPU, disk, and more. Flowup is charged according to the number of users.StethoA powerful open-source Android Debug platform developed by Facebook, Stetho makes the native An
follows:
And now let's try to get the protagonist to move.
The first is how we control, the Android device is preferred to use touch control. If we hold the front, the protagonist forwards. Hold the top down, lead up.
So how do we determine which direction we're holding down?
As shown in the picture, the yellow is stage, the pink border is the entire map, and part of the display is not shown. The green point in the lower right corner is the p
First, build the Android development environmentGetting ready: Download Eclipse, JDK, Android SDK, ADT Plugin: eclipse:http://www.eclipse.org/downloads/Jdk:http://www.oracle.com/technetwork/java/javase/downloads/jdk7u9-downloads-1859576.htmlAndroid sdk:http://developer.android.com/sdk/index.htmlAdt:http://developer.android.com/tools/sdk/eclipse-adt.html1. Install and configure the Java Development environme
Objective:
File storage is pretty familiar to us in the process of doing app development, but since the Android 6.0 release, access to external sdcard based on runtime permissions is required to dynamically request permissions, So the previous direct SDcard root directory directly created a xxx/cache/directory to do file storage is not so easy to control, so it is necessary to rethink the knowledge of the Android
Android development interview post-3. common Android advanced pen questions, android advanced
Follow finddreams blog: http://blog.csdn.net/finddreams/article/details/44301359In the previous article, we have learned some basic questions about the Android test. Android develo
Android development, permission acquisition, and android Development Permission
Turn: http://blog.csdn.net/yawinstake/article/details/6748897
Access registration attributes
Android. permission. ACCESS_CHECKIN_PROPERTIES, read or write the permission to register the check-in database Attribute Table
Get error location
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