经过较长时间的研发和验证，EasyGBD国标GB28181设备端已经发布，通过不断的优化精简，最终的接口：
#ifndef __GB28181_DEVICE_API_H__
#define __GB28181_DEVICE_API_H__#ifdef ANDROID
#include <android/log.h>
#define LOG_TAG "GB28181Device"
#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
#define LOGD(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
#endif#ifdef _WIN32
#include <winsock2.h>
#define GB28181DEVICE_API __declspec(dllexport)
#define GB28181DEVICE_APICALL __stdcall
#define WIN32_LEAN_AND_MEAN
#else
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#define GB28181DEVICE_API __attribute__ ((visibility("default")))
#define GB28181DEVICE_APICALL
#define CALLBACK
#endiftypedef enum __GB28181_DEVICE_EVENT_TYPE_ENUM_T
{GB28181_DEVICE_EVENT_CONNECTING = 1, //连接中GB28181_DEVICE_EVENT_REGISTER_ING, //注册中GB28181_DEVICE_EVENT_REGISTER_OK, //注册成功GB28181_DEVICE_EVENT_REGISTER_AUTH_FAIL, //用户验证失败GB28181_DEVICE_EVENT_START_AUDIO_VIDEO, //请求推送音视频GB28181_DEVICE_EVENT_STOP_AUDIO_VIDEO, //请求停止推送音视频GB28181_DEVICE_EVENT_TALK_AUDIO_DATA, //对端对讲数据GB28181_DEVICE_EVENT_DISCONNECT //已断线
}GB28181_DEVICE_EVENT_TYPE_ENUM_T;#define MAX_CH_NUMS 8typedef struct __GB28181_CHANNEL_INFO_T
{char id[32];char name[64];char manufacturer[32];char model[32];char parentId[32];char owner[32];char civilCode[32];char address[64];double longitude;double latitude;}GB28181_CHANNEL_INFO_T;typedef struct __GB28181_DEVICE_INFO_T
{int version; // 0(2016) or 1(2022)char server_ip[128]; // server ipint server_port; // server portchar server_id[32]; // server idchar server_domain[64]; // server domainchar device_id[32]; // device idint localSipPort; //Local sip portint channel_nums; // channel numbersGB28181_CHANNEL_INFO_T channel[MAX_CH_NUMS];char password[32]; // passwordint protocol; // 0 - udp; 1 - tcpint media_protocol; // 0 - udp; 1 - tcpint reg_expires; // sip reg user expires, unit is secondint heartbeat_interval; // gb28181 heartbeat interval, unit is secondint heartbeat_count; // gb28181 heartbeat countint log_enable; // log enable flagint log_level; // log level(0:TRACE,1:DEBUG,2:INFO,3:WARNING,4:ERROR,5:FATAL)
}GB28181_DEVICE_INFO_T;typedef int (CALLBACK* GB28181DeviceCALLBACK)(void *userPtr, int channelId, int eventType, char *eventParams, int paramLength);//创建GB28181设备端资源
/*
pDeviceInfo: 设备端信息, 为NULL则从当前目录中读取config.xml
callbackPtr: 回调函数
userPtr: 用户自定义指针,用于在回调函数中回调给调用者
*/
int GB28181DEVICE_API libGB28181Device_Create(GB28181_DEVICE_INFO_T *pDeviceInfo, GB28181DeviceCALLBACK callbackPtr, void *userPtr);int GB28181DEVICE_API libGB28181Device_Create2(char* serverIP, int serverPort, char* serverId, char* serverDomain,char* deviceId, int localSipPort, int channelNum,GB28181_CHANNEL_INFO_T*pChannel,char* password, int protocol, int mediaProtocol,int regExpires, int heartbeatInterval, int heartbeatCount,GB28181DeviceCALLBACK callbackPtr, void* userPtr);//指定视频格式
/*
codec:#define EASY_SDK_VIDEO_CODEC_H264 0x1C //H264#define EASY_SDK_VIDEO_CODEC_H265 0xAE //H265
width: 可选
height: 可选
framerate: 可选
*/
int GB28181DEVICE_API libGB28181Device_SetVideoFormat(int channelId, unsigned int codec, int width, int height, int framerate);//指定音频格式
/*
audioDstCodec:#define EASY_SDK_AUDIO_CODEC_AAC 0x15002 // AAC#define EASY_SDK_AUDIO_CODEC_G711U 0x10006 // G711 ulaw#define EASY_SDK_AUDIO_CODEC_G711A 0x10007 // G711 alaw
samplerate: 采样率
channels: 声道数
bitPerSample: 采样精度
*/
int GB28181DEVICE_API libGB28181Device_SetAudioFormat(int channelId, unsigned int audioDstCodec, int samplerate, int channels, int bitPerSamples);//设置通道实时经纬度信息
int GB28181DEVICE_API libGB28181Device_SetLotLat(int channelId, double longitude, double latitude);//推送视频数据
/*
framedata: 视频帧数据
framesize: 视频帧大小
keyframe: 关键帧填1, 否则填0
*/
int GB28181DEVICE_API libGB28181Device_AddVideoData(int channelId, char* framedata, int framesize, int keyframe);//推送音频数据
/*
audioSrcCodec: 当前音频源格式#define EASY_SDK_AUDIO_CODEC_G711U 0x10006 // G711 ulaw#define EASY_SDK_AUDIO_CODEC_G711A 0x10007 // G711 alaw#define EASY_SDK_AUDIO_CODEC_PCM 0x00007 // PCM如果audioSrcCodec和libGB28181Device_SetAudioFormat中指定的audioDstCodec不一致时, 则会自动进行转换, 但仅限于从PCM转为G711,即此处的audioSrcCodec为PCM, 而audioDstCodec为G711
framedata: 音频帧数据
framesize: 音频帧大小
nbsamples: 同音频帧大小
*/
int GB28181DEVICE_API libGB28181Device_AddAudioData(int channelId, unsigned int audioSrcCodec, char* framedata, int framesize, int nbsamples);//释放资源
int GB28181DEVICE_API libGB28181Device_Release();#ifdef ANDROID
#include <jni.h>
extern JavaVM *g_vm;
#endif#endif
从上面的接口不难看出，就简单的几个接口，几乎可以包含国标GB28181全部功能，包括直播和语音对讲、位置上报等接口，当然，这里面还有很多类似于云台控制、消息订阅等功能，会逐步发布，EasyGBD通过不断的发展，会为GB28181协议的发展贡献一份力量！
SDK空间占用极小
经过优化的EasyGBD空间占用极小，放到IPC里面好选择：
后续EasyGBD也将会把各种IPC芯片的so版本或者.a版本发布到Github：https://github.com/easydarwin/EasyGBD，EasyGBD是由EasyDarwin团队贡献的，更多好产品好方案，可以在EasyDarwin获取：www.easydarwin.org