gsd_cn/source/CNStream/configs/sinker_configs/encode_video.json

{
  "encode" : {
    "class_name" : "cnstream::Encode",
    "parallelism" : 1,
    "max_input_queue_size" : 10,
    "custom_params" : {
      "frame_rate" : 20,
      "encoder_type" : "ffmpeg",
      "file_name" : "output/output.mp4",
      "gop_size" : 40,
      "kbit_rate" : 1000,
      "view_mode" : "single",
      "dst_width" : 960,
      "dst_height": 540,
      "color_mode" : "bgr",
      "device_id": 0
    }
  }
}