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#ifndef GAME_SOUND_FFMPEG_DECODER_H
#define GAME_SOUND_FFMPEG_DECODER_H
#include <stdint.h>
#if defined(_MSC_VER)
#pragma warning (push)
#pragma warning (disable : 4244)
#endif
extern "C"
{
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavutil/channel_layout.h>
// From version 54.56 binkaudio encoding format changed from S16 to FLTP. See:
// https://gitorious.org/ffmpeg/ffmpeg/commit/7bfd1766d1c18f07b0a2dd042418a874d49ea60d
// https://ffmpeg.zeranoe.com/forum/viewtopic.php?f=15&t=872
#include <libswresample/swresample.h>
}
#if defined(_MSC_VER)
#pragma warning (pop)
#endif
#include <components/files/constrainedfilestream.hpp>
#include <string>
#include <istream>
#include "sound_decoder.hpp"
namespace MWSound
{
class FFmpeg_Decoder final : public Sound_Decoder
{
AVFormatContext *mFormatCtx;
AVCodecContext *mCodecCtx;
AVStream **mStream;
AVPacket mPacket;
AVFrame *mFrame;
int mFrameSize;
int mFramePos;
double mNextPts;
SwrContext *mSwr;
enum AVSampleFormat mOutputSampleFormat;
int64_t mOutputChannelLayout;
uint8_t *mDataBuf;
uint8_t **mFrameData;
int mDataBufLen;
bool getNextPacket();
Files::IStreamPtr mDataStream;
static int readPacket(void *user_data, uint8_t *buf, int buf_size);
static int writePacket(void *user_data, uint8_t *buf, int buf_size);
static int64_t seek(void *user_data, int64_t offset, int whence);
bool getAVAudioData();
size_t readAVAudioData(void *data, size_t length);
void open(const std::string &fname) override;
void close() override;
std::string getName() override;
void getInfo(int *samplerate, ChannelConfig *chans, SampleType *type) override;
size_t read(char *buffer, size_t bytes) override;
void readAll(std::vector<char> &output) override;
size_t getSampleOffset() override;
FFmpeg_Decoder& operator=(const FFmpeg_Decoder &rhs);
FFmpeg_Decoder(const FFmpeg_Decoder &rhs);
public:
explicit FFmpeg_Decoder(const VFS::Manager* vfs);
virtual ~FFmpeg_Decoder();
friend class SoundManager;
};
}
#endif
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