Initial community commit

Src/aacdec/MKVAACDecoder.h

@@ -0,0 +1,48 @@
+#pragma once
+#include "../in_mkv/ifc_mkvaudiodecoder.h"
+#include "incs/mp4AudioDecIfc.h"
+#include "../nsmkv/Tracks.h"
+#include "../in_mkv/svc_mkvdecoder.h"
+
+// {7405C1CE-6CD6-4975-B22B-8DBABAA64C44}
+static const GUID AACMKVGUID = 
+{ 0x7405c1ce, 0x6cd6, 0x4975, { 0xb2, 0x2b, 0x8d, 0xba, 0xba, 0xa6, 0x4c, 0x44 } };
+
+
+class MKVDecoder : public svc_mkvdecoder
+{
+public:
+	static const char *getServiceName() { return "AAC MKV Decoder"; }
+	static GUID getServiceGuid() { return AACMKVGUID; }
+	int CreateAudioDecoder(const char *codec_id, const nsmkv::TrackEntryData *track_entry_data, const nsmkv::AudioData *audio_data, unsigned int preferred_bits, unsigned int preferred_channels, bool floating_point, ifc_mkvaudiodecoder **decoder);
+protected:
+	RECVS_DISPATCH;
+};
+
+class MKVAACDecoder : public ifc_mkvaudiodecoder
+{
+public:
+	static MKVAACDecoder *Create(const nsmkv::TrackEntryData *track_entry_data, const nsmkv::AudioData *audio_data, unsigned int preferred_bits, unsigned int max_channels, bool floating_point);
+	
+protected:
+	RECVS_DISPATCH;
+private:
+	/* ifc_mkvaudiodecoder implementation */
+	int OutputFrameSize(size_t *frame_size);
+	int GetOutputProperties(unsigned int *sampleRate, unsigned int *channels, unsigned int *bitsPerSample, bool *isFloat);
+	int DecodeBlock(void *inputBuffer, size_t inputBufferBytes, void *outputBuffer, size_t *outputBufferBytes);
+	void Flush();
+	void Close();
+
+private:
+	MKVAACDecoder(mp4AudioDecoderHandle decoder, CAccessUnitPtr access_unit, CCompositionUnitPtr composition_unit, unsigned int bps, bool floating_point);
+	
+	/* internal implementation */
+
+	/* data */
+	mp4AudioDecoderHandle decoder;
+	CCompositionUnitPtr composition_unit; /* output */
+	CAccessUnitPtr access_unit; /* input */
+	unsigned int bps;
+	bool floating_point;
+	};