winamp/Src/aacdec/MKVAACDecoder.h

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2024-09-24 14:54:57 +02:00
#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;
};