Two audio recording methods for Android
In mobile APP development, every time an APP is designed for multimedia development, many programmers will suffer, and the project development progress will slow down
And the APP testing will increase. Multimedia Development in Android includes audio playback,
In Android 3. X, the processing of HTTP live streaming is independently developed into a nuplayer, independent of the stagefright framework. We have optimized the features of HTTP live.
HTTP live streaming is a trend in the future development of streaming media.
The HTTP live video experience in
the native layer and Java layer copy, improve efficiency(2) More flexibility to control parameters compared to Java APIs(3) because it is C code, it can be done in depth optimization, such as using NEON optimization(4) Code details are more difficult to decompile(5) Others, to be added5. Sample CodeA foreigner (Victor Lazzarini) wrote a nice introduction to the Android OpenSL ES API and gave some sample code, which is linked as follows:https://audiop
many other formats.Let's go a little deeper.Data format (or audio encoding)We're going to begin to understand the audio encoding, not the file format, because the audio encoding is the most important.The following are the audio data encoding formats supported by the iphone and the descriptions for each:· AAC:AAC is ac
Android calls your own recorded audio program
Android has its own audio recording program, we can specify an action MediaStore.Audio.Media.RECORD_SOUND_ACTION intent to
Just start it up. Then, in the Onactivityresult () method, get the intent data, which is the corresponding URI of the recorded
Android 4.1, abbreviated as JB. In Chinese eyes, the word JB is also related to animals. Google modified android so frequently, and finally launched a version that can be put on the mouth of JB all day long. In the future, my articles can also use JB to express the version number, while JB to express what Chairman Mao often said, "Strategic contempt". Please try to understand my mood for writing the word JB
Go from Android 4.1 audio system Change instructions to Android 4.1, English code abbreviation for JB. In the eyes of the Chinese people, the word jb is also a little related to animals. Google so frequently modified Android, finally launched a can be all day jb JB hanging in the mouth of the version. Later my article
IpCamera. It can access the camera and modify the monitoring configuration through the webpage, you can also obtain real-time monitoring audio and video through http or rtsp. The code structure shows that, spydroid has implemented RTSPServer, RTSPClient, RTP, RTCP, H264, AAC... and so on. In short, all the Utility we need is ready. We only need to combine these functions to meet our live broadcast needs.
Figure-IPCamera implemented by
Long time no article, in fact, is to record their own development in the Android growth process. Talking about the audio and video this piece, for the novice just contact this piece, it is very very disgusting ~ I myself get this piece is also from the beginning, in the Internet also read countless information, browse countless blog, tried a variety of methods, o
The traditional layout of the interface is always a clear line, located in an orderly manner, this layout is commonplace, in imperceptible everyone has been to it has produced aesthetic fatigue. This time the waterfall flow layout of the emergence of the people brought a refreshing feeling, this layout although seemingly irregular, but there is a sense of beauty, so that the emergence of a large number of Web sites and applications have to use this novel layout to design the interface.
I rememb
This paper focuses on the WEBRTC-based direct-to-peer streaming technology (Shi, Pro Gajun CTO, Editor: Dora), first published in " here "Support the original, reprint must indicate the source, welcome attention to the public number blacker (Id:blackerteam or WEBRTCORGCN)So far, the live industry continues as expected in full swing development, in the competition after the delay, HD, beauty, seconds open and other functions, the recent major live plat
used to record PCM data. The audiotrack is used to play PCM data. PCM is the raw audio sample data that can be played with a VLC player. Of course, the channel sample rate and the like to set their own, because the original sample data is no file header, such as:VLC--demux=rawaud--rawaud-channels 2--rawaud-samplerate 44100 AUDIO.PCMGo back to the two classes of Mediamuxer and Mediacodec, and their referenc
Android audio and video goes deep into an AudioRecord recording to generate pcm into wav (with source code download), androidaudiorecord
This project address is named AudioRecord recording (can be paused, convert pch to wav ).Https://github.com/979451341/Audio-and-video-learning-materialsHere is an official description1. AndioRecord Overview
The main function of
Hello, good evening, everyone finally got together again. In the past few days, I have been busy with a small project called encrypted notepad. Although it has not been improved yet, but I really miss you, so I 'd like to share with you the next new knowledge!
Let's talk about Android multimedia in this article today. I think it must be something that everyone is very interested in. Isn't it too impatient? Let's get started quickly!
I. Multimedia bas
First, Vitamio Introduction
What is 1.1 Vitamio?
Vitamio is the Android platform video audio playback component, supporting the playback of almost format video as well as the mainstream network video streaming (HTTP/RTSP/MMS, etc.), detailed Chinese introduction: here.
Vitamio Official website: http://vitamio.org/
Vitamio Weibo: Http://weibo.com/vitamio
Vpla
This project address, name is Audiorecord recording (can pause, convert PCH to WAV), for starHttps://github.com/979451341/Audio-and-video-learning-materialsFirst, the official description.1.AndioRecord Approximate descriptionThe main function of the Andiorecord class is to enable various Java applications to manage audio resources so that they can record sound co
During the first Android development, I realized such profound version differences for the first time.
My audiorecordCodeThe test was successful at 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 audio input for record source 1
04-01 12:58:44. 368: E/aud
Android basic tutorial-9.2 MediaPlayer playing audio and video
This section introduces:
This section introduces MediaPlayer in Android multimedia. We can use this API to play audio and video.This class is an important component in the Androd Multimedia Framework. Through this class, we can obtain and decode it in the
Whether it is text, image or sound, must be organized and stored in a certain format, so that the player will know how to parse this piece of data, for example, for the original image data, our common format is YUV, Bitmap, and for audio, the simplest common format is the WAV format.WAV format, like bitmap, are Microsoft developed a file format specification, they all have a similarity, is the whole file is divided into two parts, the first part is "F
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