winamp/Src/Plugins/Input/in_flac/mkv_flac_decoder.h

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2024-09-24 12:54:57 +00:00
#pragma once
#include "../in_mkv/svc_mkvdecoder.h"
#include "../in_mkv/ifc_mkvaudiodecoder.h"
#include <FLAC/all.h>
// {F6AF0AD9-608F-4206-892F-765412574A7D}
static const GUID FLACMKVGUID =
{ 0xf6af0ad9, 0x608f, 0x4206, { 0x89, 0x2f, 0x76, 0x54, 0x12, 0x57, 0x4a, 0x7d } };
class packet_client_data_s
{
public:
const uint8_t *buffer;
size_t buffer_length;
void *outputBuffer;
size_t *outputBufferBytes;
uint32_t frame_size;
uint32_t bps;
uint32_t bytes_per_sample;
uint32_t channels;
uint32_t sample_rate;
uint64_t samples;
};
typedef packet_client_data_s *packet_client_data_t;
class MKVDecoder : public svc_mkvdecoder
{
public:
static const char *getServiceName() { return "FLAC MKV Decoder"; }
static GUID getServiceGuid() { return FLACMKVGUID; }
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 MKVFLACDecoder : public ifc_mkvaudiodecoder
{
public:
static MKVFLACDecoder *Create(const nsmkv::TrackEntryData *track_entry_data, const nsmkv::AudioData *audio_data, unsigned int preferred_bits, unsigned int max_channels);
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:
MKVFLACDecoder(FLAC__StreamDecoder *decoder, packet_client_data_t packet, unsigned int bps);
~MKVFLACDecoder();
/* internal implementation */
/* data */
FLAC__StreamDecoder *decoder;
unsigned int bps;
packet_client_data_t packet;
};