audiotoolbox

"51" The long holiday has been really fast, three days so passed. The new week has begun, this week to engage in decoding and playback of audio on the iOS platform. Hands, cut into the audiotoolbox.framework study, this library is too strong, want to thoroughly understand not simple, from a certain extent, is not necessary to engage in a very thorough, because do anything to aim-oriented. Why do you use Audiotoolbox.framework? Can you use Audiotoolbox.framework to meet your needs? If Audiotoolbo

　　Morning Read about audiotoolbox.framework related information, combined with the online information on the basic use of Audiotoolbox has a general understanding of the previous article Audiotoolbox (a) The most important steps in using Audioqueue to achieve audio playback are:1. Open Play audio file2. Get the data format for playing audio files3. Prepare the queue for playback4. Move the data in the buffe

animation, as well as some advanced advanced visual effects rendering.Image I/o:Image I/O (imageio.framework) can be seen as the input and output management of images, which can be used to process the basic pixel information of an image. The use of this framework is based on the Core graphics data types and functions.OpenGL ES:OpenGL ES (openglfor Embedded systems) is open GL specifically tailored for embedded operating systems. Provides a complete 2d, 3d image processing API with very powerful

Ios sdk provides many convenient methods to play multimedia. This article uses these sdks for a demo to show you how to use them to play audio files. Audiotoolbox framework Use audiotoolbox framework. This framework can register short voices to the system sound service. The sound registered to the system sound service is called system sounds. It must meet the following conditions. 1. the playback time

QQ Chat There will be a message when the sound, and now use Audiotoolbox to achieve the effect of the beep.Note:Some versions of Xcode can not play with audiotoolbox sound may be some bugs, I test for a long time, on his Mac, on my Mac can not, and finally Oliver help to fixAudiotoolbox.framework is a C-based framework that uses it to play the sound effect by registering short audio with the system sound se

1.1 capture support [NO]–ENABLE-OPENCL enable Op Encl Code–enable-opengl enable OpenGL rendering [No]–enable-openssl enable OpenSSL, needed for HTTPS support if GnuTLS I s not used [no]–disable-schannel disable Schannel SSP, needed to TLS support on Windows if OpenSSL and GnuTLS not us Ed [autodetect]–disable-sdl2 Disable SDL2 [autodetect]–disable-securetransport disable Secure Transport, needed for TLS support on OS X if OpenSSL an D GnuTLS are not used [Autodetect]–enable-x11grab enable X11 g

1. AudioToolbox Overview Through the AudioToolbox framework, you can register a short sound to the system sound service. The sound registered to the system sound service is called system sounds. It must meet the following conditions.(1). the playback time cannot exceed 30 seconds(2) the data must be in PCM or IMA4 stream format.(3). It must be packaged into one of the following three formats: Core Audio F

, Macapi.ObjectiveC, iOSapi.Cocoatypes,Macapi.CoreFoundation, iOSapi.Foundation, iOSapi.CoreImage, iOSapi.QuartzCore, iOSapi.CoreData{$ENDIF};{$IFDEF IOS}ConstlibAudioToolbox =‘/System/Library/Frameworks/AudioToolbox.framework/AudioToolbox‘;kSystemSoundID_vibrate =$FFF;ProcedureAudioServicesPlaySystemSound( inSystemSoundID:integer); Cdecl; External libAudioToolbox Name _PU +‘AudioServicesPlaySystemSound‘;{$ENDIF}typeTForm1 =class(TForm)Button1: TButto

Recent projects to use a function: by scanning the bank card, to obtain the bank card number, after the online search, chose the Card.io this SDK, the process is as follows:(1) Download Card.ioCard.io is a phone camera to get credit card information, the middle of the use of OCR (optical character recognition) scanning technology to return results, it also launched the SDK (software Development Kit), so that developers can add card.io to their own applications. The latest SDK can be downloaded f

libraries under the lib folder. You only need to use one library and select one library based on your needs. LibHyphenateSDK. a does not contain real-time voice functions. libHyphenateFullSDK. a contains all functions. 2. Add the corresponding dependent Library 2.1. Add dependency Libraries to Build Phases → Link Binary With Libraries The SDK dependency library has CoreMedi. framework AudioToolbox. framework AVFoundation. framework Mobil

121. How do I convert a dictionary/array to a string? nsstring* Id2json (id dicorarr) {nserror *error; NSData *jsondata =[nsjsonserializationdatawithjsonobject:dicorarroptions:nsjsonwritingprettyprinted//Pass 0 if you Don ' t care about thereadability of the generated stringerror:error];if (! Jsondata) {DLog (@ "Got an error:%@", error); return nil;} else {nsstring *jsonstring =[[nsstring alloc] initwithdata:jsondata encoding:nsutf8stringencoding];return jsonString;}} 122. Xcode 6.1 Gm,

IOS: card. io usage, ioscard. io usage Recently, a function is used to scan a bank card and obtain the bank card number. After searching the Internet, the SDK card. io is used. The process is as follows:(1) download Card. ioCard. i/O allows the mobile phone camera to obtain credit card information, and uses OCR (Optical Character Recognition) Scanning Technology to return the results. It also introduces the SDK (software development kit ), let developers put the card. i/O is added to your own a

iOS 9.3 to iOS 10.0 API differencesobjective-c /usr/include Accelerate Audiotoolbox AudioUnit Avfoundation Avkit Callkit (Added) Cfnetwork CloudKit Contacts Corebluetooth CoreData Corefoundation Coregraphics Coreimage Corelocation CoreMedia Coremotion Corespotlight Coretelephony Coretext Corevideo Eventkit Eventkitui Externalaccessory Foundation Gamecontroller Gamekit Gameplaykit Glkit H

If this error occurs during debugging on the real machine, it is not found in the simulator. It indicates that a lib library only has the x86 version, but the armv7armv6 version is missing. View the database pointed to by the error and use the lipo-info command to check the binary information of the. a file. 121. how do I convert a dictionary/array to a string? NSString* id2json(id dicOrArr){NSError *error;NSData *jsonData =[NSJSONSerializationdataWithJSONObject:dicOrArroptions:NSJSONWritingPr

Audiotoolbox.framework in SDK Manager.5, Project->options->delphi Compiler->linker->options passed to the LD Linker added "-framework audiotoolbox".6. You can now compile and publish the program with LIBBASS.A. But if the Bass_streamcreatefile function is used in the program code, the compiler will report an error that the identifier did not find, as shown in. This is because the function uses the iOS cfnetwork.framework.7, similarly, need to increas

IOS: card. io usage Recently, a function is used to scan a bank card and obtain the bank card number. After searching the Internet, the SDK card. io is used. The process is as follows: (1) download Card. io Card. i/O allows the mobile phone camera to obtain credit card information, and uses OCR (Optical Character Recognition) Scanning Technology to return the results. It also introduces the SDK (software development kit ), let developers put the card. i/O is added to your own application. You ca

: YES]; } IOS File Download (synchronous download) NSString * urlAsString = @ "http://files.cnblogs.com/zhuqil/UIWebViewDemo.zip "; NSURL * url = [NSURL URLWithString: urlAsString]; NSURLRequest * request = [NSURLRequest requestWithURL: url]; NSError * error = nil; NSData * data = [NSURLConnection sendSynchronousRequest: request returningResponse: nilerror: error]; /* Downloaded data */ If (data! = Nil ){ NSLog (@ "Download successful "); If ([data writeToFile: @ "/Users/jilucky/UIWebViewDemo.z

{ voidvoid *libhandle = Dlopen ("/system/library/frameworks/coretelephony.framework/ Coretelephony ", rtld_lazy);//get library handle int (*ctgetsignalstrength);//define a function pointer that matches the function that will be fetched Ctgetsignalstrength = (int (*) ()) Dlsym (Libhandle, "ctgetsignalstrength"); Gets the function if (ctgetsignalstrength = NULL) Return-1 of the specified name ; else{ int level = Ctgetsignalstrength (); Dlclose (Libhandle); Remember to close the library

The core function of QQ music is Play the song . Play the audio, first think can use avfoundation frame, to complete the main function of playing music. But Avfoundation can only play local music and not play it online. Although you can download the resources from the network to the local re-play, but must be the whole song to download the complete before playing, so the effect is not good.!If you want to play online, you can choose the Audio Queue service in the

audioservicesJump To:navigation, searchAudioservices is a group of C functions in Audiotoolbox for playing short (≤30 seconds) sounds.Predefined SoundsThere is some predefined system sounds, for the system sound ID in the range of (decimal), as shown below (from 2.0 to 5.0 Beta). The system sounds is all stored in/system/library/audio/uisounds/. Sound ID File name (iPhone) File name (iPod Touch) Category Note