Initial community commit

1 files changed, 40 insertions, 0 deletions

diff --git a/Src/aacdec/MP4AACDecoder.h b/Src/aacdec/MP4AACDecoder.h
new file mode 100644
index 00000000..ebde1d48
--- /dev/null
+++ b/Src/aacdec/MP4AACDecoder.h
@@ -0,0 +1,40 @@
+#pragma once
+#include "../in_mp4/mpeg4audio.h"
+#include "incs/mp4AudioDecIfc.h"
+
+// {654B5212-018E-45f6-88CF-75862C85D99A}
+static const GUID mp4_aac_guid = { 0x654b5212, 0x18e, 0x45f6, { 0x88, 0xcf, 0x75, 0x86, 0x2c, 0x85, 0xd9, 0x9a } };
+
+class MP4AACDecoder : public MP4AudioDecoder
+{
+public:
+	static const char *getServiceName() { return "AAC MP4 Decoder"; }
+	static GUID getServiceGuid() { return mp4_aac_guid; }
+	MP4AACDecoder();
+	int Open();
+	int OpenEx(size_t bits, size_t maxChannels, bool useFloat);
+	void Close();
+	int GetCurrentBitrate(unsigned int *bitrate);
+	int AudioSpecificConfiguration(void *buffer, size_t buffer_size); // reads ASC block from mp4 file
+	void Flush();
+	int GetOutputProperties(unsigned int *sampleRate, unsigned int *channels, unsigned int *bitsPerSample);
+	int GetOutputPropertiesEx(unsigned int *sampleRate, unsigned int *channels, unsigned int *bitsPerSample, bool *useFloat);
+	int DecodeSample(void *inputBuffer, size_t inputBufferBytes, void *outputBuffer, size_t *outputBufferBytes); 
+	int OutputFrameSize(size_t *frameSize);
+	int CanHandleCodec(const char *codecName);
+	int CanHandleType(uint8_t type);
+	int CanHandleMPEG4Type(uint8_t type);
+	int SetGain(float _gain) { gain=_gain; return MP4_SUCCESS; }
+private:
+	mp4AudioDecoderHandle decoder;
+	CCompositionUnitPtr composition_unit; /* output */
+	CAccessUnitPtr access_unit; /* input */
+
+	size_t preDelay;
+	unsigned int bitsPerSample;
+	size_t maxChannels;
+	bool isFloat;
+	float gain;
+protected:
+	RECVS_DISPATCH;
+};