hevc playback

To facilitate the management of audio resources and reduce the complexity of audio control by applications, the media playing background is used.To manage audio playback and access to audio resources. Media Playback backend requires the following features: 1. priority-based preemption and restoration.2. Supports simultaneous access to audio resources and mixed and alternative

1, Avplayer (1) Advantages and disadvantages Advantages: You can customize the UI for control Disadvantages: Simple playback, no control UI (progress, pause, play, etc.), and if you want to display the playback interface, you need to use Avplayerlayer to add layers to the layer you want to show (2) realize remote video playback Implement

iOS audio playback can be divided into short audio playback (e.g., audio effects, etc.) and long audio playback (for example: music and other main audio). The former does not need to control the progress, cycle, etc., while the latter requires precise control. Playing these two audio in iOS is done using Audiotoolbox.frameworK and Avfoundation.framework respectiv

(This article transferred from the Code farm Life )ObjectiveMusic-related app development has been for some time, in the process of the app's player after several changes, I also for iOS audio playback implementation has a certain research.Write this series of blog purpose on the one hand hope to be able to stimulate, on the other hand is also hope to help other iOS developers and enthusiasts less detours (I have encountered a lot of pits). This artic

not contain Direct x sdk, so in order to smoothly complete this article,You must first download and install the Direct x sdk. Specific: http://download.microsoft.com/download/a/c/d/acdfb557-266f-4af4-8673-6ab8009b4ddd/dxsdk_apr2005.exe. This version is an English version launched in 2005. This does not prevent the following program implementation. After Direct X is installed, "C: \ WINDOWS \ Microsoft. NET \ Managed DirectX ", the Directory should contain nine DLL files and nine XML files. The

sampling rate of 44.1kHz, the decoding time of a frame must be controlled within 23.22 milliseconds. Background knowledge: (An AAC original frame contains 1024 samples and related data over a period of time) Analysis: 1 AAC Playback time of the audio frame = number of samples/sample frequency (in s) for the corresponding sample of an AAC frame A frame of 1024 sample. Sample Rate Samplerate 44100KHz, 44,100 samples per second, so the

Business people often need to use PPT to negotiate business with customers, and to ensure that the speech to achieve the desired effect, not only a powerful PPT demo tool, but also to share the PPT document to the audience to read. and WPS Mobile version of the built-in Wi-Fi direct technology, can realize the PPT sharing playback, so that the PPT demo complement each other. Wi-Fi Direct share playback pre

AVFoundation Programming Guide-Playback, Playback To control resource playback, use the AVPlayer object. During playback, you can use the AVPlayerItem instance to manage the rendering status of the entire resource and use the AVPlayerItemTrack object to manage the rendering status of a single track. To display a vid

Most of the time, Web pages use Flash to play video. In the current environment of Flash, HTML5 brings us a solution--In HTML5, embedded media can be supported via HTML tags "audio" and "video", enabling developers to easily embed media into HTML documents.Video formatCurrently, the video element supports three types of videos: OGG = Ogg file with Theora video encoding and Vorbis audio encoding MPEG4 = MPEG 4 file with H + video encoding and AAC audio encoding WebM = WebM file w

Reprint Please specify source: http://www.cnblogs.com/fangkm/p/3797278.htmlTo undertake the previous article. Media playback, you need to specify a source file, HTML5 in the URL format to specify the video source file address, can be an HTTP link, you can also make the local source file (cannot be specified directly, need to use the Blob binary type). Playing network files more than the local file download process, so the following direct analysis of

One, simple explanation 1. A brief description of music playback (1) Music playback using a class called Avaudioplayer (2) Avaudioplayer common methods Load music files Copy Code code as follows: -(ID) Initwithcontentsofurl: (nsurl *) URL error: (nserror * *) Outerror; -(ID) Initwithdata: (NSData *) Data error: (NSERROR * *) Outerror; Ready to play (buffer, improve the fluency o

===================================================== The simplest audio-visual Playback Example series article List: Simplest visual Audio Playback Example 1: general statement The simplest AV playback example 2:gdi play YUV, RGB Simplest AV Playback example 3:direct3d play Yuv,rgb (via surface) Simplest AV

During this time, I inserted a USB flash drive or SD card and found that the automatic playback dialog box did not pop up automatically. Somehow, I lost myself. I think the automatic playback function is quite useful, it brings me great convenience. Since the automatic playback dialog box cannot work, I searched it on Google and finally found a solution. The foll

Goal Fast forward, rewind and slow down are common tricks of the trick pattern, and they have one thing in common: they all change the speed of playback. This tutorial shows you how to get these effects and how to jump frames by frame. The main contents are: How to change the speed of play, become faster or slower, forward or backward How to play a frame-by-frame video Introduced Fast

Playback of sound effects First, a brief introduction In simple terms, audio can be divided into 2 kinds (1) Sound effects Also known as "short audio", usually plays in the program 1-2 seconds long Play a decorative effect in your application to enhance the overall user experience (2) Music such as "background music" in the game, the general playback time is longer Frame: Playing audio requires a av

visual| Video Playback Many people first contact with DirectX is through the game, as for installation, upgrade DirectX is nothing more than to meet the needs of game operation. Direct x is actually a library of Windows platform Multimedia API functions, which provides a standard interface to interact with graphics cards, sound cards, input devices, and so on. Without this set of standard API libraries, you would need to write different code for each

1. BackgroundWith the popularization of broadband Internet and great technological advances, VoIP has become a technology that can rival traditional telephone services and PBX products. The VoIP Terminal samples and codes audio and video analog signals into Compressed Frames, and then converts them into IP packets for transmission, thus achieving multimedia communication on the IP network. This article analyzes several factors that may affect the collection/