35 lines
1.6 KiB
C
35 lines
1.6 KiB
C
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#pragma once
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#include "foundation/dispatch.h"
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#include "nx/nxuri.h"
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#include "metadata/ifc_metadata.h"
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class ifc_audio_decoder_pull : public Wasabi2::Dispatchable
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{
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protected:
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ifc_audio_decoder_pull() : Dispatchable(DISPATCHABLE_VERSION) {}
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~ifc_audio_decoder_pull() {}
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public:
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/* if possible, returns an upper bound on the number of frames used internally. pull decoders are most optimal if you use this to malloc your buffer */
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int GetFrameSize(size_t *frame_size) { return AudioDecoderPull_GetFrameSize(frame_size); }
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int GetMetadata(ifc_metadata **metadata) { return AudioDecoderPull_GetMetadata(metadata); }
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/* returns
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* NErr_EndOfFile when decode is done (frames_written will be valid, but probably 0)
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* NErr_Success on successful decode, but not end-of-file (frames_written will be valid)
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* anything else indicates a decode error */
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int Decode(void *buffer, size_t buffer_frames, size_t *frames_written) { return AudioDecoderPull_Decode(buffer, buffer_frames, frames_written); }
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/* You need to call Close() when you are done (even if you Release) because some implementations might have ifc_metadata being the same object */
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void Close() { AudioDecoderPull_Close(); }
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enum
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{
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DISPATCHABLE_VERSION=0,
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};
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private:
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virtual int WASABICALL AudioDecoderPull_GetFrameSize(size_t *frame_size)=0;
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virtual int WASABICALL AudioDecoderPull_GetMetadata(ifc_metadata **metadata)=0;
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virtual int WASABICALL AudioDecoderPull_Decode(void *buffer, size_t buffer_frames, size_t *frames_written)=0;
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virtual void WASABICALL AudioDecoderPull_Close()=0;
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};
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