On the Web Dev Preferences dialog, set the URL field to the URL of the initial web page for the online service.Select "API 2 Test Platform" and press "Configure selected plugin".Select Options->Preferences->Plug-ins->Media Library.In order to change the starting web page for the online service, start the Winamp client and configure the plugin.The presence of this plugin will create a "Web Dev Test Platform" within the Medial Library pane. Make sure you have the latest version of the ml_webdev plugin (ml_webdev.dll).Make sure you have the latest version of the Winamp client that supports online services.There are several steps necessary to allow this to take place. The Winamp Online Services API is designed to allow web pages, hosted (displayed) within the embedded browser of the Winamp client, to access the functionality of the client. For simplicity, examples in this document will use JavaScript. The API can be invoked using any scripting language supported by the Microsoft Internet Explorer web browser (5.5 and above). The Winamp Online Service API is made up of methods that can be called from scripts within web pages rendered by the Winamp client. The overall idea is to include exceptional web sites within Winamp Online Services. The purpose of the Winamp Online Service API is to allow content creators to interact with the Winamp client in order to provide to create custom experiences for their users based on the power of Winamp. 14.2.2 string versionstring (read only).10.2 Storing and Retrieving advanced data types.ISO/IEC 13818-7:2006 - MPEG-2 AAC includes informative annexes on encoding omitted from 14496-3.ISO/IEC 14496-26:2010 - Conformance, includes limits on various bitstream values.ISO/IEC 14496-3:2009 - Decoding AAC, systems MPEG-4 integration.The following documents are must reads for anyone implementing an AAC encoder N7390: Tutorial on MPEG Surround Audio Coding.MPEG Surround technology shares similar characteristics with PS (Parametric Stereo) used in HE-AAC v2 including mixing in the same SBR domain used by HE-AAC. MPEG Surround is a multichannel coding scheme that can used with any core coder audio but is most often used with (HE-)AAC and BSAC. It is used by the T-DMB broadcast standard. Despite being an MPEG-4 only flavor it can be embedded in an ADTS stream.īit Slice Arithmetic Coding (BSAC) is an alternate quantization and entropy coding scheme for AAC. MPEG-4 AAC-LC plus a less computationally intensive frequency domain prediction tool. In the wild this appears to be used in some Hulu streams. The details of the prediction tool are only given in ISO/IEC 13818-7 not in ISO/IEC 14496-3. Additionally this profile adds relaxation to the maximum TNS filter size, and time domain coupling. MPEG-2/4 AAC-LC plus a computationally intensive, intra-channel, inter-frame frequency domain prediction tool. Standard AAC-LC decoders can decode HE-AAC encoded files/streams but without SBR and PS you do not get the full quality. HE-AAC (also known by the Dolby trade name aacPlus) is MPEG-4 AAC-LC + SBR (Spectral Band Replication) and HE-AAC v2 (aacPlus v2) is MPEG-4 AAC-LC + SBR + PS (Parametric Stereo). MPEG-2 AAC-LC plus a Perceptual Noise Substitution (PNS) tool. The basic subset of AAC that most other flavors and profiles are based on. Dolby was involved in its implementation. Apple who popularized the format in its iTunes software has an encoders and decoders available in iTunes and QuickTime.Coding Technologies the inventor of SBR has a shareware encoder available in Winamp.Nero has a well regarded freeware AAC encoder and decoder.HE-AAC encoder based on 3GPP reference implementation.Real Networks has source for its Helix AAC fixedpoint decoder here:.Intel has source for its IPP based AAC decoder:.a=tree f=media/libstagefright/codecs hb=HEAD.Google has opensourced Android, which includes an Apache 2.0 licensed aac encoder and decoder:.
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