dragonpilot - 基於 openpilot 的開源駕駛輔助系統
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#pragma once
#include <cassert>
#include <cstdint>
#include <thread>
#include "cereal/messaging/messaging.h"
#include "cereal/visionipc/visionipc.h"
#include "common/queue.h"
#include "system/camerad/cameras/camera_common.h"
#define V4L2_BUF_FLAG_KEYFRAME 8
class VideoEncoder {
public:
VideoEncoder(const char* filename, CameraType type, int in_width, int in_height, int fps,
int bitrate, cereal::EncodeIndex::Type codec, int out_width, int out_height,
const char* publish_name)
: filename(filename), type(type), in_width(in_width), in_height(in_height), fps(fps),
bitrate(bitrate), codec(codec), out_width(out_width), out_height(out_height),
publish_name(publish_name) { }
virtual ~VideoEncoder();
virtual int encode_frame(VisionBuf* buf, VisionIpcBufExtra *extra) = 0;
virtual void encoder_open(const char* path) = 0;
virtual void encoder_close() = 0;
void publisher_init();
static void publisher_publish(VideoEncoder *e, int segment_num, uint32_t idx, VisionIpcBufExtra &extra, unsigned int flags, kj::ArrayPtr<capnp::byte> header, kj::ArrayPtr<capnp::byte> dat);
protected:
const char* filename;
const char* publish_name;
int in_width, in_height;
int out_width, out_height, fps;
int bitrate;
cereal::EncodeIndex::Type codec;
CameraType type;
private:
// total frames encoded
int cnt = 0;
// publishing
std::unique_ptr<PubMaster> pm;
const char *service_name;
};