

本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# 在 Amazon ECS 任務定義中指定影片轉碼
<a name="task-def-video-transcode"></a>

在以下範例中，提供了用於 Amazon EC2 上 Linux 容器的任務定義的語法。此任務定義適用於遵循 [Xilinx 文件](https://xilinx.github.io/video-sdk/v1.5/container_setup.html#creating-a-docker-image-for-vt1-usage)提供的程序建置的容器映像。如果您使用此範例，請用自己的映像替換 `image`，接著將影片檔案複製到 `/home/ec2-user` 目錄的執行個體。

------
#### [ vt1.3xlarge ]

1. 使用下列內容建立名為 `vt1-3xlarge-ffmpeg-linux.json` 的文字檔案。

   ```
   {
       "family": "vt1-3xlarge-xffmpeg-processor",
       "requiresCompatibilities": ["EC2"],
       "placementConstraints": [
           {
               "type": "memberOf",
               "expression": "attribute:ecs.os-type == linux"
           },
           {
               "type": "memberOf",
               "expression": "attribute:ecs.instance-type == vt1.3xlarge"
           }
       ],
       "containerDefinitions": [
           {
               "entryPoint": [
                   "/bin/bash",
                   "-c"
               ],
               "command": ["/video/ecs_ffmpeg_wrapper.sh"],
               "linuxParameters": {
                   "devices": [
                       {
                           "containerPath": "/dev/dri/renderD128",
                           "hostPath": "/dev/dri/renderD128",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD129",
                           "hostPath": "/dev/dri/renderD129",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       }
                   ]
               },
               "mountPoints": [
                   {
                       "containerPath": "/video",
                       "sourceVolume": "video_file"
                   }
               ],
               "cpu": 0,
               "memory": 12000,
               "image": "0123456789012.dkr.ecr.us-west-2.amazonaws.com/aws/xilinx-xffmpeg",
               "essential": true,
               "name": "xilinix-xffmpeg"
           }
       ],
       "volumes": [
           {
               "name": "video_file",
               "host": {"sourcePath": "/home/ec2-user"}
           }
       ]
   }
   ```

1. 註冊任務定義。

   ```
   aws ecs register-task-definition --family {{vt1-3xlarge-xffmpeg-processor}} --cli-input-json file://{{vt1-3xlarge-xffmpeg-linux.json}} --region {{us-east-1}}
   ```

------
#### [ vt1.6xlarge ]

1. 使用下列內容建立名為 `vt1-6xlarge-ffmpeg-linux.json` 的文字檔案。

   ```
   {
       "family": "vt1-6xlarge-xffmpeg-processor",
       "requiresCompatibilities": ["EC2"],
       "placementConstraints": [
           {
               "type": "memberOf",
               "expression": "attribute:ecs.os-type == linux"
           },
           {
               "type": "memberOf",
               "expression": "attribute:ecs.instance-type == vt1.6xlarge"
           }
       ],
       "containerDefinitions": [
           {
               "entryPoint": [
                   "/bin/bash",
                   "-c"
               ],
               "command": ["/video/ecs_ffmpeg_wrapper.sh"],
               "linuxParameters": {
                   "devices": [
                       {
                           "containerPath": "/dev/dri/renderD128",
                           "hostPath": "/dev/dri/renderD128",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD129",
                           "hostPath": "/dev/dri/renderD129",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD130",
                           "hostPath": "/dev/dri/renderD130",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD131",
                           "hostPath": "/dev/dri/renderD131",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       }
                   ]
               },
               "mountPoints": [
                   {
                       "containerPath": "/video",
                       "sourceVolume": "video_file"
                   }
               ],
               "cpu": 0,
               "memory": 12000,
               "image": "0123456789012.dkr.ecr.us-west-2.amazonaws.com/aws/xilinx-xffmpeg",
               "essential": true,
               "name": "xilinix-xffmpeg"
           }
       ],
       "volumes": [
           {
               "name": "video_file",
               "host": {"sourcePath": "/home/ec2-user"}
           }
       ]
   }
   ```

1. 註冊任務定義。

   ```
   aws ecs register-task-definition --family {{vt1-6xlarge-xffmpeg-processor}} --cli-input-json file://{{vt1-6xlarge-xffmpeg-linux.json}} --region {{us-east-1}}
   ```

------
#### [ vt1.24xlarge ]

1. 使用下列內容建立名為 `vt1-24xlarge-ffmpeg-linux.json` 的文字檔案。

   ```
   {
       "family": "vt1-24xlarge-xffmpeg-processor",
       "requiresCompatibilities": ["EC2"],
       "placementConstraints": [
           {
               "type": "memberOf",
               "expression": "attribute:ecs.os-type == linux"
           },
           {
               "type": "memberOf",
               "expression": "attribute:ecs.instance-type == vt1.24xlarge"
           }
       ],
       "containerDefinitions": [
           {
               "entryPoint": [
                   "/bin/bash",
                   "-c"
               ],
               "command": ["/video/ecs_ffmpeg_wrapper.sh"],
               "linuxParameters": {
                   "devices": [
                       {
                           "containerPath": "/dev/dri/renderD128",
                           "hostPath": "/dev/dri/renderD128",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD129",
                           "hostPath": "/dev/dri/renderD129",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD130",
                           "hostPath": "/dev/dri/renderD130",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD131",
                           "hostPath": "/dev/dri/renderD131",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD132",
                           "hostPath": "/dev/dri/renderD132",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD133",
                           "hostPath": "/dev/dri/renderD133",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD134",
                           "hostPath": "/dev/dri/renderD134",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD135",
                           "hostPath": "/dev/dri/renderD135",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD136",
                           "hostPath": "/dev/dri/renderD136",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD137",
                           "hostPath": "/dev/dri/renderD137",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD138",
                           "hostPath": "/dev/dri/renderD138",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD139",
                           "hostPath": "/dev/dri/renderD139",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD140",
                           "hostPath": "/dev/dri/renderD140",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD141",
                           "hostPath": "/dev/dri/renderD141",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD142",
                           "hostPath": "/dev/dri/renderD142",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       },
                       {
                           "containerPath": "/dev/dri/renderD143",
                           "hostPath": "/dev/dri/renderD143",
                           "permissions": [
                               "read",
                               "write"
                           ]
                       }
                   ]
               },
               "mountPoints": [
                   {
                       "containerPath": "/video",
                       "sourceVolume": "video_file"
                   }
               ],
               "cpu": 0,
               "memory": 12000,
               "image": "0123456789012.dkr.ecr.us-west-2.amazonaws.com/aws/xilinx-xffmpeg",
               "essential": true,
               "name": "xilinix-xffmpeg"
           }
       ],
       "volumes": [
           {
               "name": "video_file",
               "host": {"sourcePath": "/home/ec2-user"}
           }
       ]
   }
   ```

1. 註冊任務定義。

   ```
   aws ecs register-task-definition --family {{vt1-24xlarge-xffmpeg-processor}} --cli-input-json file://{{vt1-24xlarge-xffmpeg-linux.json}} --region {{us-east-1}}
   ```

------