Initial community commit

Src/aacdec/AVIAACDecoder.h

@@ -0,0 +1,41 @@
+#pragma once
+#include "../in_avi/svc_avidecoder.h"
+#include "../in_avi/ifc_aviaudiodecoder.h"
+#include "incs/mp4AudioDecIfc.h"
+
+// {4033D2BF-F217-4e8e-877B-2269CD04CA52}
+static const GUID avi_aac_guid = 
+{ 0x4033d2bf, 0xf217, 0x4e8e, { 0x87, 0x7b, 0x22, 0x69, 0xcd, 0x4, 0xca, 0x52 } };
+
+class AVIDecoder : public svc_avidecoder
+{
+public:
+	static const char *getServiceName() { return "AAC AVI Decoder"; }
+	static GUID getServiceGuid() { return avi_aac_guid; }
+	int CreateAudioDecoder(const nsavi::AVIH *avi_header, const nsavi::STRH *stream_header, const nsavi::STRF *stream_format, const nsavi::STRD *stream_data, unsigned int preferred_bits, unsigned int max_channels, bool floating_point, ifc_aviaudiodecoder **decoder);
+protected:
+	RECVS_DISPATCH;
+};
+
+class AVIAACDecoder : public ifc_aviaudiodecoder
+{
+public:
+	AVIAACDecoder(mp4AudioDecoderHandle decoder, CAccessUnitPtr access_unit, CCompositionUnitPtr composition_unit, unsigned int bps, bool floating_point);
+	static AVIAACDecoder *Create(const nsavi::audio_format *stream_format, unsigned int preferred_bits, unsigned int max_channels, bool floating_point);
+protected:
+	RECVS_DISPATCH;
+private:
+	/* ifc_aviaudiodecoder implementation */
+	int OutputFrameSize(size_t *frame_size);
+	int GetOutputProperties(unsigned int *sampleRate, unsigned int *channels, unsigned int *bitsPerSample, bool *isFloat);
+	int DecodeChunk(uint16_t type, void **inputBuffer, size_t *inputBufferBytes, void *outputBuffer, size_t *outputBufferBytes);
+	void Flush();
+	void Close();
+
+	/* data */
+	mp4AudioDecoderHandle decoder;
+	CCompositionUnitPtr composition_unit; /* output */
+	CAccessUnitPtr access_unit; /* input */
+	unsigned int bps;
+	bool floating_point;
+};