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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include "Encoder.h"
extern "C"
{
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswresample/swresample.h>
}
namespace KODI
{
namespace CDRIP
{
class CEncoderFFmpeg : public CEncoder
{
public:
CEncoderFFmpeg() = default;
~CEncoderFFmpeg() override = default;
bool Init() override;
ssize_t Encode(uint8_t* pbtStream, size_t nNumBytesRead) override;
bool Close() override;
private:
static int avio_write_callback(void* opaque, uint8_t* buf, int buf_size);
static int64_t avio_seek_callback(void* opaque, int64_t offset, int whence);
void SetTag(const std::string& tag, const std::string& value);
bool WriteFrame();
AVSampleFormat GetInputFormat(int inBitsPerSample);
std::string FFmpegErrorToString(int err);
AVFormatContext* m_formatCtx{nullptr};
AVCodecContext* m_codecCtx{nullptr};
SwrContext* m_swrCtx{nullptr};
AVStream* m_stream{nullptr};
AVSampleFormat m_inFormat;
AVSampleFormat m_outFormat;
/* From libavformat/avio.h:
* The buffer size is very important for performance.
* For protocols with fixed blocksize it should be set to this
* blocksize.
* For others a typical size is a cache page, e.g. 4kb.
*/
static constexpr size_t BUFFER_SIZE = 4096;
uint8_t* m_bcBuffer{nullptr};
unsigned int m_neededFrames{0};
size_t m_neededBytes{0};
uint8_t* m_buffer{nullptr};
size_t m_bufferSize{0};
AVFrame* m_bufferFrame{nullptr};
uint8_t* m_resampledBuffer{nullptr};
size_t m_resampledBufferSize{0};
AVFrame* m_resampledFrame{nullptr};
bool m_needConversion{false};
int64_t m_samplesCount{0};
int64_t m_samplesCountMultiply{1000};
};
} /* namespace CDRIP */
} /* namespace KODI */
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