NGIAgoraVideoMixerSource.h

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//
//  Agora SDK
//
//  Copyright (c) 2018 Agora.io. All rights reserved.
//
 
#pragma once  // NOLINT(build/header_guard)
 
#include "AgoraBase.h"
#include "AgoraRefPtr.h"
#include "IAgoraService.h"
 
namespace agora {
namespace rtc {
 
class IVideoTrack;
struct MixerLayoutConfig {
  int32_t x;
  int32_t y;
  int32_t width;
  int32_t height;
  int32_t zOrder; // larger zOrder prioritizes smaller ones
  float alpha;
  bool mirror;
  const char* image_path; // url of the place holder picture
 
  MixerLayoutConfig() : x(0), y(0), width(0), height(0), zOrder(0), alpha(1.0), mirror(false), image_path(NULL) {}
  MixerLayoutConfig(int ox, int oy, int w, int h, int order) : x(ox), y(oy), width(w), height(h), zOrder(order), alpha(1.0), mirror(false), image_path(NULL) {}
};
 
enum ImageType {
  kPng,
  kJpeg,
  kGif
};
 
class IVideoMixerSource : public RefCountInterface {
public:
  virtual int addVideoTrack(const char* id, agora_refptr<IVideoTrack> track) = 0;
  virtual int removeVideoTrack(const char* id, agora_refptr<IVideoTrack> track) = 0;
  virtual int setStreamLayout(const char* id, const MixerLayoutConfig& config) = 0;
  virtual int delStreamLayout(const char* id) = 0;
  virtual int addImageSource(const char* id, const MixerLayoutConfig& config, ImageType type = kPng) = 0;
  virtual int delImageSource(const char* id) = 0;
  virtual void clearLayout() = 0;
  virtual int refresh() = 0;
  virtual int setBackground(uint32_t width, uint32_t height, int fps, uint32_t color_argb = 0) = 0;
  virtual int setBackground(uint32_t width, uint32_t height, int fps, const char* url) = 0;
  virtual int setRotation(uint8_t rotation) = 0;
  virtual int getAvgMixerDelay() = 0;
};
 
} //namespace rtc
} // namespace agora