Linux RTS SDK集成与实现

操作步骤

1. 下载并解压Linux RTS 推流 SDK。下载地址，请参见SDK下载。
2. 编写以下代码：

   #include <stdio.h>
   #include <stdlib.h>
   #include <string.h>
   #include <stdarg.h>
   #include <unistd.h>
   #include <stdint.h>
   
   //引入头文件
   #include "rts_api.h"
   
   struct rts_frame* make_frame(uint8_t *data, uint32_t size, int64_t pts, int64_t dts, int is_audio)
   {
       struct rts_frame *frame = (struct rts_frame*)malloc(sizeof(struct rts_frame));
       memset(frame, 0, sizeof(struct rts_frame));
   
       frame->buf = (uint8_t*)malloc(size);
       if (data) {
           memcpy(frame->buf, data, size);
       }
       frame->size = size;
       frame->pts  = pts;
       frame->dts  = dts;
       frame->is_audio = is_audio;
       return frame;
   }
   
   static void free_frame(struct rts_frame *f)
   {
       if (f == NULL) {
           return;
       }
       if (f->buf != NULL) {
           free(f->buf);
       }
       free(f);
   }
   
   int main(int argc, const char **argv)
   {
       const struct rts_glue_funcs *fs = get_rts_funcs(1);
       if (fs == NULL) {
           printf("get_rts_funcs failed");
           return -1;
       }
   
       if (argc != 2) {
           printf("Usage: %s <artc url>\n", argv[0]);
           return -1;
       }
       const char *url = argv[1];
   
       //初始化全局配置，全局只能调用一次
       rts_golbal_config_t golbal_config;
       memset(&golbal_config, 0, sizeof(golbal_config));
       golbal_config.log_config.max_file_size = 100;
       golbal_config.log_config.log_keep_count = 10;
       golbal_config.log_config.log_level = RTS_LOG_ERROR;
       fs->preconfig(&golbal_config);
   
       //设置推流参数
       rts_config_t rts_config;
       memset(&rts_config, 0, sizeof(rts_config));
       rts_config.stream_config.pub_audio_codec = RTS_CODEC_OPUS;
       rts_config.stream_config.pub_audio_sample_rate = 48000;
       rts_config.stream_config.pub_audio_channels = 2;
       rts_config.stream_config.pub_video_codec = RTS_CODEC_H264;
       rts_config.event_handle.on_key_frame_req = on_key_frame_req;
       rts_config.event_handle.on_disconnected = on_disconnected;
       rts_config.event_handle.on_publish = on_publish;
       rts_config.event_handle.user_data = NULL; //用户对象指针
   
       //开始推流, 指定URL和流配置
       void *h = fs->open(url, &rts_config, "w");
       if (h == NULL) {
           printf("fs open failed");
           return -1;
       }
   
       //循环发送数据
       struct rts_frame *af = make_frame(data, length, pts, dts, 0);
       int ret = fs->write(af, h);
       free_frame(af);
   
       //结束推流
       fs->close(h);
   
       //释放实例，进程退出时调用，全局只能调用一次。
       fs->destroy();
       return 0;
   }
   

3. 编译上述test_rtssdk.c文件。
   需要先安装 zlib-devel库：

   sudo yum install  zlib-devel

   再执行以下命令编译test_rtssdk.c文件：

   gcc -I <path to header files> -o test_rtssdk test_rtssdk.c -L<path to library file> -lRtsSDK -lpthread -ldl -lz -lm

4. 运行生成的可执行文件test_rtssdk。

   export LD_LIBRARY_PATH=<path to library file> 
   ./test_rtssdk artc://<domain/app/name>