record streaming audio android

How Android audio and video instant messaging software can be quickly implemented with JNIAudio and Video communicationAs an independent developer or a company that wants to shorten the audio and video development cycle, you want toAndroidThe quickest way to achieve audio and video communication under the platform is t

IOS and Android audio Development Summary Recently, because the project needs to change the sound, it is not difficult to learn and Process audio. However, it is still tedious (more than expected) While my mind is still excited, I will summarize my thoughts and record them. This article mainly introduces three parts: 1

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, I still needed to drag the progress bar to set the playing progress, that can be postponed .....Now let

broadband narrowband integration, wired and wireless integration, active passive integration, transmission and integration of integrated service network. Let a fiber solve the dream of watching TV, making phone calls and surfing the internet into reality. Now a network cable through the WiFi can connect all the communication equipment, mobile Internet and anytime and anywhere convenience, the future mobile internet will be the same as the traditional Internet, even there is a trend beyond!Accor

description: The setAudioSource () method in MediaRecorder sets the sound source. Generally, MediaRecorder. AudioSource is passed in.MICSpecifies the recording sound from the microphone. SetOutputFormat sets the format of the recorded audio file. (Note that you must set the encoding format before setting it. Otherwise, an exception is thrown) SetAudioEncoder: Set the encoding format SetAudioEncodingBitRate (int bitRate) sets the encoding bit rate Set

output, no matter whether the headset is inserted or not; when the headset is inserted, only the SPEAKER is disabled. Astray: 1. it is a waste of time to look at the Android upper-Layer Code for a long time in various types. If you use tinymix to view the normal switching of the audio channel, it means that there is no problem with all the above kernel, the problem also lies in the kernel and hardware. C

issue is resolved by setting Hp_ctl_gpio to invalid_gpioin the resource. Bonus: Principle headphones There has always been audio output, no matter the insertion is not plugged into the headset, the headset is inserted only when the SPEAKER is forbidden. Strayed Astray:1. Mistakenly think to go to see the Android Upper code in each kind of search for a long time, it is a waste, if you use tinymix to view th

Long time not updated blog, from the company resigned years ago, this six months, has been to do some outsourcing app to feed themselves! is also to achieve their own years ago set goals! But also think that can not always do outsourcing it, so decided to do some of their own feel interesting app, hang to the App Store and App Store, as long as there are 1-2k or 1-2w active users, they are satisfied!Recently thinking to make a voice feed system, difficult, in fact, is in the

()Method. You can use the START () method to Resume playback in the paused area.Play a fileThe following describes how to play a file:1. Create a mediaplayer instance with new;2. Call the setdatasource () method. This method has a string type parameter. This string type parameter contains the path of the file to be played-local file system or URL;3. Call the prepare () method first, and then start () method.JavaCode: Copy to clipboardJava code Mediaplayer MP =NewMediaplayer (); MP. setdat

In this post, I tried to play small audio data chunks with audiotrack to show the feasibility of streaming audio. it's not straightforward enough. so I updated the sample code to actually transfer audio data with UDP. As the image below shows, the application is not too complicated. The two buttons will each create

The address of this project, ask Starhttps://github.com/979451341/Audio-and-video-learning-materials/tree/master/FFmpeg%E6%92%AD%E6%94%BE%E8%A7%86%E9%A2%91First FFmpeg is written in C, so we need the NDK technology, and then I use the NDK to use CMake, the first is to say how to import FFmpeg project, using my method to import ffmpeg not a minute.This requires you to first download the project code in the above code addressBecause FFmpeg this

The address of this project, ask Starhttps://github.com/979451341/Audio-and-video-learning-materials/tree/master/FFmpeg%E6%92%AD%E6%94%BE%E8%A7%86%E9%A2%91First FFmpeg is written in C, so we need the NDK technology, and then I use the NDK to use CMake, the first is to say how to import FFmpeg project, using my method to import ffmpeg not a minute.This requires you to first download the project code in the above code addressBecause FFmpeg this

, the receiver side decoding good performance, no mosaic phenomenon.3.2, adding the QoS module will bring a certain delay and lag, because packet retransmission is time-required.3.3, the above plan is WEBRTC inside the nack concrete realization way.The above scheme is provided by Peng Zuyuan, a senior audio and video expert from the ring, with some adjustments, and Kelly for editing and finishing.Peng has many years of

Android audio and video goes deep into 21 FFmpeg video cutting, androidffmpeg Video cutting I accidentally found that the code of the last video compression can run the FFmpeg video cutting command, but it cannot be used to merge videos, because you cannot read txt files that record the paths of several videos. Here I will talk about the video cutting process, no

high , and SPEAKERis not disabled. The schematic does not have a separate headphone to enable the pin. set hp_ctl_gpio to invalid_gpioin the resource. Problem solved. Bonus: Principle headphones There has always been audio output, no matter the insertion is not plugged into the headset, while inserting the headset SPEAKER is forbidden. Strayed Astray:1. Mistakenly think to see the Android upper layer code

recording audio is stored (specify the root directory of the phone sdcard, the file name is Music.mp3) Recorder.setoutputfile ( Environment.getexternalstoragedirectory (). GetAbsolutePath () + "Music.mp3"), try {//6, prepare for recording (ready state) Recorder.prepare ();} catch (IllegalStateException e) {//Todo auto-generated catch Blocke.printstacktrace ();} catch (IOException e) {//Todo Au To-generated catch Blocke.printstacktrace ();} To play th

I recently learned about Streaming Media on Android. I didn't know anything at first, and I didn't know where to start. I just went online and looked at the information. It was really a matter of feeling the stone. Later, I learned a little more about the materials. I would like to thank the people who provided the materials online. I have learned a lot. Now the real-time transmission and playback of

you're done * using the MediaRecorder. */ public native void release(); Use of mediarecorder native code is described as follows: A common case of using MediaRecorder to record audio works as follows:MediaRecorder recorder = new MediaRecorder(); recorder.setAudioSource(MediaRecorder.AudioSource.MIC); recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); recorder.setAudioEncoder(Med

Some Android AudioRecord models cannot collect audio, androidaudiorecord During the first Android development, I realized such profound version differences for the first time.My AudioRecord code was successfully tested in Samsung S5670.Xiaomi, duowei D210T test failed. The error message is as follows:04-01 12:58:44. 368: E/AudioRecord (19808): cocould not get

calculates the average value. However, the precondition is that the number of channels and the sample value of the two files must be the same. We have also explained the functions of the number of channels and the sample value before, so we can infer that if the sample value is 8 bits and 16 bits, we need to convert byte to short and then overlay the average number; if a single channel needs to be combined with a dual channel, the write algorithm is added to the first half or the second half. T