vpi audio

Transferred from: http://blog.chinaunix.net/space.php?uid=10995602do=blogid=2918725 The process of audio and video is finished, and the next step is to see Audio and Video Synchronization (synchronization) problems. Opencore's approach is to set up a main clock, and audio and video are used as a means of output. In the Stagefright,

Decoding process: 1, read HiSilicon g726 audio data, HiSilicon g726 audio will be more than 4 bytes of HiSilicon header information. 2. Select FFmpeg g726 encoder for decoding. FFmpeg g726 decoder includes: av_codec_id_adpcm_g726, Av_codec_id_adpcm_g726le. Select the av_codec_id_adpcm_g726 decoder type if the HiSilicon g726 stream type is ASF, and select the g726 decoder type if the HiSilicon RFC3551 stream

The so-called multimedia computers usually have sound cards (soft or hard sound cards), which can capture audio. You must be familiar with the attachment "recorder" program that comes with windows. You can use a microphone for recording and generate a wave file. After reading this article, you will find that using DirectShow to write an audio capture application is also so easy! As you know, DirectShow sup

 Kinect V2 Development Project (3) 1. Kinect Equipment Information Acquisition 2, Audio function exploration 1. Kinect Equipment Information Acquisition Since the Kinect supports multiple devices, in theory, we should be able to get all the device information, and here we explore. Through the official audiobasics-d2d, this demo found that it takes only one step to get the Kinect device: ikinectsensor* M_pkinectsensor; Getdefaultkinectsensor (m_p

IOS audio playback (4): Converting AudioFileSource: http://msching.github.io/blog/2014/07/19/audio-in-ios-4/preface Next, the third articleAudioStreamFileLet's talk about this article.AudioFile. AndAudioStreamFileSameAudioFileYesAudioToolBoxIn the framework, it can also complete Step 1 described in the first article, read audio format information and perform fram

The previous article recorded the RGB/YUV video pixel data processing method, this article continues the previous article the content, records the PCM audio sampling data processing method. The location of the audio sample data in the video player's decoding process is shown.This paper introduces several PCM audio sampling data processing functions as follows:Sep

statement: These articles about ffmpeg are only used to record my learning process and for later review, some of the text in the article may be directly from other articles, books or literature, learning ffmpeg related knowledge is to use on Android, I was just beginning to contact learning, Please also indicate if there is any mistake. Audio format is to play in the computer or processing audio files, that

1. Order The audio decoding process in Mplayer is analyzed step by step. Audio Decoding, including the video decoding mentioned later, does not involve specific formats and decoding algorithms. If you are interested in the format and decoding of object files, you can find relevant information on the Internet ~ You can also pay attention to post on popy (advertisement ~ ) Ii. Portal The entry in the main fun

The point to note here is that the interface we're talking about actually includes a discussion of the two aspects of "interface" (interface) and "connectors" (connector), which we often call "connectors" or "plugs." "Interface" defines the physical characteristics of the connection between electronic devices, including the frequency and intensity of the transmitted signal, the type and quantity of the corresponding connection, and the structural design of the plugs and sockets, and the connecto

HTML5 audio practices, Web music player development Today we are developing a webpage music player based on HTML5 audio. In the new HTML5 features, audio and video are our new elements of interest. We can finally develop audio and video players from Flash. For a new HTML element, it is nothing more than attributes, eve

We compared and tested the sound quality of 16-, 20-, and 24-bit quantified digital audio data in the lab, testers with "golden ears" will use their feelings to tell you the difference between the quantization precision of different bit numbers. Through these test results, you can even see the differences between different sampling frequencies. The results of testing in well-equipped acoustic recording studios are very convincing. We can see what the

The previous articles show how to capture audio using the Audiorecord provided by Android in the Java layer, play audio with audiotrack, and encode and decode using MEDIACODEC, which are Java layer APIs provided by Android , whether it is acquisition, playback, or codec, these API interfaces need to copy audio data from Java to the native layer, or from the nativ

File Log Address http://blog.csdn.net/q1056843325/article/details/60336226Audio and video have become more and more popular nowIndividual websites to ensure cross-browser compatibilityStill choose to use flash(source is cut from Youku)Multimedia label UsageHTML5 adds audio and video two multimedia tagsCompatibility is good, low version IE does not supportAllows us to insert audio and video controls without

How Word documents add audio or video annotations 1, click the Customize Quick Access Toolbar button on the right of the Quick Access Toolbar (), and in the Drop-down menu that opens, execute the other commands command to open the Word Options dialog box. 2, in the Select commands from the Drop-down list box, select All commands, select the Insert Sound command in the list box below it, and then click the Add button to add it to the right list box,

1, in the Storm audio and video interface, click on the upper right corner of the storm audio and video. 2, and then in the next option, select Advanced Options. 3, the Advanced option, click the Hotkey setting. 4, in the hotkey setting, will open the Boss key and the use of the Boss key box selected. 5. Select, click OK, later if you want to hide the storm

Microsoft today started a public test of two office plug-ins, "STAMP" (subtitling add-in for Microsoft powerpoint,powerpoint subtitle loading) and "Save As Daisy", These two plug-ins can help people with hearing, eyesight, or dyslexia to use Office Office software. Stamp can help users add hidden captions to video or audio files in PowerPoint presentations (the audio portion of a TV signal is superimposed

1, cool dog support a lot of audio plug-ins, you can add plug-ins to the cool dog, first copy the entire plugins directory to your cool dog installation directory, and then click on the cool dog icon in the upper left corner of the cool Dog, pop-up main menu, click on the menu "option settings", such as (Figure 1) Figure 1 2, in the pop-up window click "Audio plugin", change the directory of Plug-i

In PowerPoint, audio and video files are often played through "Insert → movie and sound → files in movies (or sound in Files)", which makes it inconvenient to control sound and video. Now we introduce a way to control audio and video playback using media player controls. Steps are as follows 1. Insert the Media Player control in PowerPoint, in specific ways: ① open view → toolbar → Control toolbox ② Sele

Adobe Audition How to adjust the speed of the audio rhythm? 1. Right click on any track to insert the audio that you want to change 2, put the mouse on the audio, click Right-fragment Time extension properties 3, in the opening time stretch on tick, you'll see the amount of time to stretch. This column is dimmed by gray, which means you can cha

1. src: The URL of the music Preload: Pre-load AutoPlay: Auto Play Loop: Looping Playback Controls: Browser's own control bar [HTML] view Plaincopy 2. src: URL of the video Poster: Video cover, no picture displayed when playing Preload: Pre-load AutoPlay: Auto Play Loop: Looping Playback Controls: Browser's own control bar Width: Video width Height: Video Height Muted: Whether to output video sound [HTML] view Plainc