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Apple Developer Documentation
https://developer.apple.com/documentation/coreaudiotypes/audiobufferlist
Overview The AudioBufferList structure provides a mechanism for encapsulating one or more buffers of audio data. It is used by functions in various Core Audio APIs, as described in Audio Converter Services, Audio Unit Component Services, and …
Apple Developer Documentation
https://developer.apple.com/documentation/coremedia/1489191-cmsamplebuffergetaudiobufferlist
Creates an AudioBufferList containing the data from the CMSampleBuffer, and a CMBlockBuffer which references (and manages the lifetime of) the data in that AudioBufferList. The data may or may not be copied, depending on the contiguity and 16-byte alignment of the sample buffer's data. The buffers placed in the AudioBufferList are guaranteed to be contiguous.
AudioBuffers.Explicit(AudioBuffers to IntPtr) Operator ...
https://docs.microsoft.com/en-us/dotnet/api/audiotoolbox.audiobuffers.op_explicit
The AudioBuffers class to extract the data from. Returns IntPtr Remarks If you cast this object to an IntPtr, you will get the address to the underlying data structure which you can pass to any C APIs that requires a pointer to the object. C#
CoreAudio callback and AudioBufferList ... - Apple …
https://developer.apple.com/forums/thread/12133
The AudioBuffer has 0 for mDataSize and a nil reference for the data. var abl = UnsafeMutablePointer<AudioBufferList>(ioData).memory. The audioconvertfillcomplexbuffer call does also give back a size error. After returning from the callback the original AudioBufferList seems "initialized" and is empty as well. The code base on Obj-C works well.
objective c - How do you add to an AudioBufferList with …
https://stackoverflow.com/questions/5615395/how-do-you-add-to-an-audiobufferlist-with-an-avassetreader
I have been working on reading in an audio asset using AVAssetReader so that I can later play back the audio with an AUGraph with an AudioUnit callback. I have the AUGraph and AudioUnit callback wo...
The Amazing Audio Engine: AEUtilities.h File Reference
https://theamazingaudioengine.com/doc/_a_e_utilities_8h.html
Create an audio buffer list on the stack. This is useful for creating buffers for temporary use, without needing to perform any memory allocations. It will create a local AudioBufferList* variable on the stack, with a name given by the first argument, and initialise the buffer according to the given audio format.
Working with AVAudioPCMBuffer | Apple Developer Forums
https://developer.apple.com/forums/thread/24124
AVAudioPCMBuffer provides three properties to get a pointer to the audio data contained in the buffer object: floatChannelData - Returns a pointer to the buffer’s 32-bit float audio samples. It returns nil if it is another format. int16ChannelData - Returns a pointer to the buffer's 2-byte integer audio samples.
用AudioBuffer里的数据得到音量_Glassy_sky1207的博客-程序员秘 …
https://cxymm.net/article/Glassy_sky1207/78681607
AudioBufferList里的buffer里面的数据，根据设置不同，有可能是0-1的float类型，也有可能是int类型，如果是int类型，需要转化为0-1的float类型。 根据这些数据计算音量，需要用到vDSP库，这个库已经封装了很多快速计算的方法，不需要我们自己去实现。
AudioBuffers Constructor (AudioToolbox) | Microsoft Docs
https://docs.microsoft.com/en-us/dotnet/api/audiotoolbox.audiobuffers.-ctor
AudioBuffers (IntPtr) Creates and AudioBuffers object that can be used to query and manipulate a native AudioBuffersList structure. public AudioBuffers (IntPtr address); new AudioToolbox.AudioBuffers : nativeint -> AudioToolbox.AudioBuffers Parameters address IntPtr Pointer to an existing C-based AudioBufferList. Applies to
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