33 lines
1.9 KiB
C++
33 lines
1.9 KiB
C++
#pragma once
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#include "foundation/dispatch.h"
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#include "ifc_mp4file.h"
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#include "audio/ifc_audioout.h"
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class ifc_mp4audiodecoder : public Wasabi2::Dispatchable
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{
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protected:
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ifc_mp4audiodecoder() : Dispatchable(DISPATCHABLE_VERSION) {}
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~ifc_mp4audiodecoder() {}
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public:
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int FillAudioParameters(ifc_audioout::Parameters *parameters) { return MP4AudioDecoder_FillAudioParameters(parameters); }
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int Decode(const void **output_buffer, size_t *output_buffer_bytes, double *start_position, double *end_position) { return MP4AudioDecoder_Decode(output_buffer, output_buffer_bytes, start_position, end_position); }
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int Seek(ifc_mp4file::SampleID sample_number) { return MP4AudioDecoder_Seek(sample_number); }
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int SeekSeconds(double *seconds) { return MP4AudioDecoder_SeekSeconds(seconds); }
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int ConnectFile(ifc_mp4file *new_file) { return MP4AudioDecoder_ConnectFile(new_file); }
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enum
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{
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DISPATCHABLE_VERSION,
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};
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private:
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/* sizeof_parameters will already be filled out for you */
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virtual int WASABICALL MP4AudioDecoder_FillAudioParameters(ifc_audioout::Parameters *parameters)=0;
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virtual int WASABICALL MP4AudioDecoder_Decode(const void **output_buffer, size_t *output_buffer_bytes, double *start_position, double *end_position)=0;
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virtual int WASABICALL MP4AudioDecoder_Seek(ifc_mp4file::SampleID sample_number) = 0;
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/* fill in with the actual seconds you'll resume playback at */
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virtual int WASABICALL MP4AudioDecoder_SeekSeconds(double *seconds) = 0;
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/* this is an unfortunate wart in the API. In order to support editing metadata on an actively playing file, we have to re-open the file which will generate a new ifc_mp4file object.
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do _not_ reset the decoder or change the sample number. You should assume the file is identical from a playback point-of-view, just release your old object and retain/assign the new one */
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virtual int WASABICALL MP4AudioDecoder_ConnectFile(ifc_mp4file *new_file)=0;
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};
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