Did not find the reprint function where ... So I can only copy it over.
Always want to video audio codec technology to do a simple summary, but suffer from the time is not sufficient, has not been able to complete. Today has a lot of free, and finally can summarize a video and audio technology to start a tutorial, can facilitate more people learn from the zero to learn
Based on the analysis in the first three articles, you only need to write a MAKEFILE file to compile main. cpp and aaccodechelper. cpp, as shown below:
Makefile:
Cxx = g ++
Objects = Main. O aaccodechelper. oLibs =-L/usr/local/lib-lfaac-wl,-rpath,/usr/local/lib-I/usrWavtoaac: $ (objects)$ (Cxx) $ (objects)-O darling $ (libs)Aaccodechelper. O: aaccodechelper. cpp aaccodechelper. h typedef. h$ (Cxx)-C aaccodechelper. cpp $ (libs)Main. O: Main. cpp aaccodechelper. h$ (Cxx)-C main. cpp $ (libs)Cl
1, as shown below if this resource is not right, you can search for other resources Baidu to try, because it is possible that the problem of the chip source.
2, audio and video pioneer software we better be the latest version, the old version can be technically less than the new version.
3, the speed problem, with 360 security guards or other speed measurement software, testing
4, to see if the problem is set, we open the software
First, Audio architecture overview(1)ALSA is the acronym for Advanced Linux Sound Architecture, which has become the mainstream audio architecture for Linux and wants to learn moreFor information and knowledge about this open source project at ALSA, please see the following URL: http://www.alsa-project.org/.In the kernel device driver layer, ALSA provides alsa-driver, while at the application layer, ALSA pr
In scenes where audio and video are re-encoded and need to be synchronized, there are several basic principles to follow (otherwise the audio and video will be stuck and not smooth.) With audio AAC encoding frequency 44.1k, video H264 encode 25 frame rate for example): 1. Ensure that the audio and video frame arrival
In the FFmpeg ultra-detailed comprehensive tutorial---------------a sample of reading PC camera video data and sending it as a live stream with rtmp protocol is done in the camera live text, but the audio support is not implemented, so the example is further perfected in this article and the video synchronization problem of live stream is analyzed in detail. , a code example is also given.
For the live stream, here only the synchronization of the send
First of all you should know what is ape? What can ape file play with?
A: Ape is a lossless compression format for audio CDs.
A: It is recommended to install Plug-ins with Foobar2000,winamp (the latest version is not available) can also play, WMP install Plug-ins can also play.
Okay, now do the prep, you need to be prepared with the following software:
1. EAC 095
2. Monkey Audio 397 (that is, the monke
1. Basic knowledge of I2S
1.1 I2s Introduction
I2S bus, the abbreviation Inter-icsound, is a bus standard developed by Philips for audio data transmission between digital audio devices, which is specially used for data transmission between audio devices and is widely used in various multimedia systems. The I2S is also a synchronous serial communication interface.
Two ways of synchronizing audio and video synchronization with the time stamp as the benchmark with the time stamp of the video as the benchmark with the external clock as the reference to the standard audio-video synchronization This is a digression. This blog theme is not write audio and video synchronization but write audi
Written by: Kesenhoo-Original: http://developer.android.com/training/managing-audio/index.html
If our app is capable of playing audio, it's important to let users control the audio in the way they expect. To ensure a good user experience, we should allow the app to manage the current audio focus, as this will ensu
Bowen from Http://blog.csdn.net/droidphone Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1. Origin of Asoc
Asoc--alsa system on Chip is built on a standard ALSA drive layer to better support a software system for embedded processors and audio codec in mobile devices. Before ASOC, the kernel had some support for
Manage audio playback (from the Chinese version of the Android official training course (v0.9.5 ))
If our applications can play audio, it is important for users to control the audio in their expected ways. To ensure a good user experience, we should allow the application to manage the current audio focus, because this
Chapter One: FundamentalsThis chapter will show you how to start learning about Web audio APIs, which browsers support audio APIs, how to detect if an audio API is available, what an audio graph is, what an audio node is, how to connect each
First, digital audioAudio signal is a continuous change of the analog signal, but the computer can only process and record binary digital signal, from the natural sound source audio signal must undergo a certain transformation, become a digital audio signal, can be sent to the computer for further processing.The digital audio system realizes the reproduction of t
Tags: LSA generated audio span describe ATI channel Ann correctAudio ClockingAudio clock==============This text describes the audio clocking terms in ASOC and digital audio inGeneral. Note:audio clocking can be complex!This article describes the audio clock terms in ASOC and digital
Http://www.cnblogs.com/haibindev/archive/2011/12/29/2305712.htmlRTMP (Real time Messaging Protocol) is a streaming protocol specifically designed to transfer audio and video data, originally created by Macromedia and later owned by Adobe, a proprietary protocol used primarily to contact Flash Player and Rtmpserver, such as FMS, Red5, crtmpserver , etc. The RTMP protocol can be used for live streaming, on-demand applications, and FMLE (Flash Media live
Skills | optimization
Like Macromedia Flash has changed the way we experience the Web, Macromedia Flash Lite has the same effect on mobile devices. Sound effects are part of this rich experience. In fact, sound is an integral part of any mobile device, providing warnings, ringtones, audio prompts, and background music for a variety of entertainment uses. In this article, I'll introduce you to the Killersound tip-an innovative way to use sound in Flash
Audio this aspect is very profound, I certainly can not speak what advanced things, at most also just some basic knowledge, first, we want to introduce Android he provided the recording class, in fact, he has two, one is Mediarecorder, There is another one that we are going to use today, what is the difference between them? Audiorecord
I. Distinction
Mediarecorder and Audiorecord can record audio, the dif
ways to get audio footage directly using PowerPoint 2013
1. Start PowerPoint 2013 and open the presentation and select the slides you want to insert the sound into. On the Insert tab of the Ribbon, in the Media group, click the Down Triangle button on the audio button to select the Online audio option in the Open Drop-down list, as shown in Figure 1.
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