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#pragma once
#include <torch/types.h>
#include "../decoder/defs.h"
#include "../decoder/memory_buffer.h"
#include "../decoder/sync_decoder.h"
using namespace ffmpeg;
namespace vision {
namespace video {
struct Video : torch::CustomClassHolder {
std::tuple<std::string, long> current_stream; // stream type, id
// global video metadata
c10::Dict<std::string, c10::Dict<std::string, std::vector<double>>>
streamsMetadata;
int64_t numThreads_{0};
public:
Video(std::string videoPath, std::string stream, int64_t numThreads);
std::tuple<std::string, int64_t> getCurrentStream() const;
c10::Dict<std::string, c10::Dict<std::string, std::vector<double>>>
getStreamMetadata() const;
void Seek(double ts, bool fastSeek);
bool setCurrentStream(std::string stream);
std::tuple<torch::Tensor, double> Next();
private:
bool succeeded = false; // decoder init flag
// seekTS and doSeek act as a flag - if it's not set, next function simply
// retruns the next frame. If it's set, we look at the global seek
// time in comination with any_frame settings
double seekTS = -1;
void _getDecoderParams(
double videoStartS,
int64_t getPtsOnly,
std::string stream,
long stream_id,
bool fastSeek,
bool all_streams,
int64_t num_threads,
double seekFrameMarginUs); // this needs to be improved
std::map<std::string, std::vector<double>> streamTimeBase; // not used
DecoderInCallback callback = nullptr;
std::vector<DecoderMetadata> metadata;
protected:
SyncDecoder decoder;
DecoderParameters params;
}; // struct Video
} // namespace video
} // namespace vision
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