终止支持通知：2025 年 11 月 13 日， AWS 我们将停止对亚马逊 Elastic Transcoder 的支持。2025 年 11 月 13 日之后，您将无法再访问 Elastic Transcoder 控制台或 Elastic Transcoder 资源。
有关过渡到的更多信息 AWS Elemental MediaConvert，请访问此[博客文章](https://aws.amazon.com/blogs/media/how-to-migrate-workflows-from-amazon-elastic-transcoder-to-aws-elemental-mediaconvert/)。
本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。
# 读取任务
**Topics**
+ [描述](#get-job-description)
+ [请求](#get-job-requests)
+ [响应](#get-job-responses)
+ [错误](#get-job-response-errors)
+ [示例](#get-job-examples)
## 描述
要获取有关任务的详细信息，请向 `/2012-09-25/jobs/jobId` 资源发送 GET 请求。
## 请求
### 语法
```
GET /2012-09-25/jobs/jobId HTTP/1.1
Content-Type: charset=UTF-8
Accept: */*
Host: elastictranscoder.Elastic Transcoder endpoint.amazonaws.com:443
x-amz-date: 20130114T174952Z
Authorization: AWS4-HMAC-SHA256
Credential=AccessKeyID/request-date/Elastic Transcoder endpoint/elastictranscoder/aws4_request,
SignedHeaders=host;x-amz-date;x-amz-target,
Signature=calculated-signature
```
### 请求参数
此操作接受以下请求参数。
** jobId**
要获取其详细信息的任务的标识符。
### 请求标头
此操作仅使用所有操作通用的请求标头。有关通用请求标头的信息，请参阅 [HTTP 标头内容](making-http-requests.md#http-request-header)。
### 请求正文
此操作没有请求正文。
## 响应
### 语法
```
Status: 200 OK
x-amzn-RequestId: c321ec43-378e-11e2-8e4c-4d5b971203e9
Content-Type: application/json
Content-Length: number of characters in the response
Date: Mon, 14 Jan 2013 06:01:47 GMT
{
"Job":{
"Id":"Id that Elastic Transcoder assigned to the job",
"Inputs":[{
"Key":"name of the file to transcode",
"Encryption":{
"Mode":"aes-cbc-pkcs7|aes-ctr|aes-gcm",
"Key":"encrypted and base64-encoded decryption key",
"KeyMd5":"base64-encoded key digest",
"InitializationVector":"base64-encoded initialization vector"
},
"TimeSpan":{
"StartTime":"starting place of the clip, in
HH:mm:ss.SSS or sssss.SSS",
"Duration":"duration of the clip, in HH:mm:ss.SSS
or sssss.SSS"
},
"FrameRate":"auto|10|15|23.97|24|25|29.97|30|50|60",
"Resolution":"auto|width in pixelsxheight in pixels",
"AspectRatio":"auto|1:1|4:3|3:2|16:9",
"Interlaced":"auto|true|false",
"Container":"auto|aac|asf|avi|divx|flv|m4a|mkv|mov|mp2|mp3|
mp4|mpeg|mpeg-ps|mpeg-ts|mxf|ogg|vob|wav|webm",
"DetectedProperties":{
"Width":"video width in pixels",
"Height":"video height in pixels",
"FrameRate":"video frame rate in fps",
"FileSize":"file size in bytes",
"DurationMillis":"file duration in milliseconds"
},
"InputCaptions":{
"MergePolicy":"MergeOverride|MergeRetain|Override",
"CaptionSources":[
{
"Key":"name of the input caption file",
"Language":"language of the input caption file",
"TimeOffset":"starting place of the captions, in
either [-+]SS.sss or [-+]HH:mm:SS.ss",
"Label":"label for the caption"
"Encryption":{
"Mode":"aes-cbc-pkcs7|aes-ctr|aes-gcm",
"Key":"encrypted and base64-encoded decryption key",
"KeyMd5":"base64-encoded key digest",
"InitializationVector":"base64-encoded initialization
vector"
},
},
{...}
]
}
},
{...}],
"OutputKeyPrefix":"prefix for file names in Amazon S3 bucket",
"Outputs":[{
"Id":"sequential counter",
"Key":"name of the transcoded file",
"Encryption":{
"Mode":"s3||aes-cbc-pkcs7|aes-ctr|
aes-gcm",
"Key":"encrypted and base64-encoded encryption key",
"KeyMd5":"base64-encoded key digest",
"InitializationVector":"base64-encoded initialization vector"
},
"ThumbnailPattern":""|"pattern",
"Rotate":"auto|0|90|180|270",
"PresetId":"preset to use for the job",
"SegmentDuration":"[1,60]",
"Watermarks":[
{
"InputKey":"name of the .png or .jpg file",
"Encryption":{
"Mode":"s3||aes-cbc-pkcs7|
aes-ctr|aes-gcm",
"Key":"encrypted and base64-encoded encryption key",
"KeyMd5":"base64-encoded key digest",
"InitializationVector":"base64-encoded initialization
vector"
},
"PresetWatermarkId":"value of Video:Watermarks:Id in
preset"
},
{...}
],
"AlbumArt":[
{
"AlbumArtMerge":"Replace|Prepend|Append|Fallback",
"AlbumArtArtwork":"can be empty, but not null":[
{
"AlbumArtInputKey":"name of the file to use as album
art",
"Encryption":{
"Mode":"s3||aes-cbc-pkcs7|
aes-ctr|aes-gcm",
"Key":"encrypted and base64-encoded encryption key",
"KeyMd5":"base64-encoded key digest",
"InitializationVector":"base64-encoded
initialization vector"
},
"AlbumArtMaxWidth":"maximum width of output album art
in pixels",
"AlbumArtMaxHeight":"maximum height of output album
art in pixels",
"AlbumArtSizingPolicy":"Fit|Fill|Stretch|Keep|
ShrinkToFit|ShrinkToFill",
"AlbumArtPaddingPolicy":"Pad|NoPad",
"AlbumArtFormat":"jpg|png"
},
{...}
]
},
{...}],
"Duration":"duration in seconds",
"DurationMillis":"duration in milliseconds",
"Height":"height in pixels",
"Width":"width in pixels",
"FrameRate":"frame rate in fps",
"FileSize":"file size in bytes",
"Status":"Submitted|In Progress|Complete|Error",
"StatusDetail":"detail associated with Status",
"Captions":{
"CaptionFormats":[
{
"Format":"cea-708|dfxp|mov-text|scc|srt|webvtt",
"Pattern":"myCaption/file-language",
"Encryption":{
"Mode":"s3||aes-cbc-pkcs7|
aes-ctr|aes-gcm",
"Key":"encrypted and base64-encoded encryption key",
"KeyMd5":"base64-encoded key digest",
"InitializationVector":"base64-encoded
initialization vector"
}
},
{...}
]
},
"AppliedColorSpaceConversion":"None|Bt601ToBt709|
Bt709ToBt601"
},
{...}
],
"Playlists":[
{
"Format":"HLSv3|HLSv4|MPEG-DASH|Smooth",
"Name":"name",
"OutputKeys":[
"Outputs:Key to include in this playlist",
{...}
],
"HlsContentProtection":{
"Method":"aes-128",
"Key":"encrypted and base64-encoded protection key",
"KeyMd5":"base64-encoded key digest",
"InitializationVector":"base64-encoded
initialization vector",
"LicenseAcquisitionUrl":"license acquisition url",
"KeyStoragePolicy":"NoStore|WithVariantPlaylists"
},
"PlayReadyDrm":{
"Format":"microsoft|discretix-3.0",
"Key":"encrypted and base64-encoded DRM key",
"KeyId":"id of the DRM key",
"KeyMd5":"base64-encoded key digest",
"InitializationVector":"base64-encoded
initialization vector",
"LicenseAcquisitionUrl":"license acquisition url"
}
},
{...}
],
"UserMetadata":
{
"Key":"Value",
"Second user metadata key":"Second user metadata value"
},
"PipelineId":"PipelineId for the job",
"Status":"Submitted|Progressing|Complete|Canceled|Error",
"Timing":{
"SubmitTimeMillis":"job submitted time in epoch milliseconds",
"StartTimeMillis":"job start time in epoch milliseconds",
"FinishTimeMillis":"job finish time in epoch milliseconds"
}
}
}
```
### 响应标头
此操作仅使用大多数响应通用的响应标头。有关通用响应标头的信息，请参阅 [HTTP 响应](making-http-requests.md#http-response-header)。
### 响应正文
对于满足搜索条件的每个任务，响应正文中均包含在创建任务时指定的值。有关任务值的更多信息，请参阅 [您在创建 Elastic Transcoder 任务时指定的设置](job-settings.md)。
此外，Elastic Transcoder 将返回以下值。
**（自动）Id**
Elastic Transcoder 为任务分配的标识符。您使用该值获取任务的设置或删除任务。
**（自动）输入：DetectedProperties**
检测到的输入文件的属性。Elastic Transcoder 从输入文件识别这些值。
**（自动）Inputs:Width**
检测到的输入文件宽度（以像素为单位）。
**（自动）Inputs:Height**
检测到的输入文件高度（以像素为单位）。
**（自动）输入：FrameRate**
检测到的输入文件帧率（以每秒帧数为单位）。
**（自动）输入：FileSize**
检测到的输入文件大小（以字节为单位）。
**（自动）输入：DurationMillis**
检测到的输入文件持续时间（以毫秒为单位）。
**（自动）Outputs:Id**
以 1 开头的顺序计数器，用于在当前任务的输出中标识输出。在 `Output` 语法中，此值始终为 `1`。
**（自动）Outputs:Duration**
输出文件的持续时间（以秒为单位），向上取整。
**（自动）输出：DurationMillis**
输出文件的持续时间（以毫秒为单位）。
**（自动）Outputs:Width**
输出文件的宽度（以像素为单位）。
**（自动）Outputs:Height**
输出文件的高度（以像素为单位）。
**（自动）输出：FrameRate**
输出文件的帧率（以每秒帧数为单位）。
**（自动）输出：FileSize**
输出文件的文件大小（以字节为单位）。
**（自动）Outputs:Status**
任务中一个输出的状态。如果您只为该任务指定了一个输出，则 `Outputs:Status` 始终与 `Job:Status` 相同。如果您指定了多个输出：
+ 所有输出的 `Job:Status` 和 `Outputs:Status` 都是 `Submitted`，直到 Elastic Transcoder 开始处理第一个输出。
+ 当 Elastic Transcoder 开始处理第一个输出时，该输出的 `Outputs:Status` 和 `Job:Status` 都更改为 `Progressing`。对于每个输出，`Outputs:Status` 的值将保持为 `Submitted`，直到 Elastic Transcoder 开始处理输出。
+ `Job:Status` 保持为 `Progressing`，直到所有输出都达到终端状态，`Complete` 或者 `Error`。
+ 当所有输出都达到终端状态时，仅当所有输出的 `Outputs:Status` 都是 `Complete` 时，`Job:Status` 才会更改为 `Complete`。如果一个或多个输出的 `Outputs:Status` 是 `Error`，则 `Job:Status` 的终端状态也是 `Error`。
`Status` 的值为以下值之一：`Submitted`、`Progressing`、`Complete`、`Canceled` 或 `Error`。
**（自动）输出：StatusDetail**
进一步解释 `Outputs:Status` 的信息。
**（自动）输出：AppliedColorSpaceConversion**
如果 Elastic Transcoder 使用带有 `ColorSpaceConversionMode` 的预设对输出文件进行转码，则 `AppliedColorSpaceConversion` 参数会显示所使用的转换。如果在预设中未定义 `ColorSpaceConversionMode`，则此参数将不会包含在任务响应中。
**（自动）Status**
如果您为任务指定了多个输出，则为整个任务的状态。当 Elastic Transcoder 开始处理任务时，`Job:Status` 的值会更改为 `Progressing`，并且在 Elastic Transcoder 完成对所有输出的处理之前不会发生变化。处理完成后，`Job:Status` 更改为 `Complete`，如果有任何输出失败，则更改为 `Error`。
如果您只为该任务指定了一个输出，则 `Job:Status` 与 `Outputs:Status` 相同。
`Job:Status` 的值为以下值之一：`Submitted`、`Progressing`、`Complete`、`Canceled` 或 `Error`。
**（自动）Timing**
有关任务时间的详细信息。
**（自动）定时：SubmitTimeMillis**
任务提交给 Elastic Transcoder 的时间（以纪元毫秒为单位）。
**（自动）定时：StartTimeMillis**
任务开始转码的时间（以纪元毫秒为单位）。
**（自动）定时：FinishTimeMillis**
任务完成转码的时间（以纪元毫秒为单位）。
要了解有关纪元时间的更多信息，请访问 Wikipedia 上的[纪元计算](https://en.wikipedia.org/wiki/Epoch_%28reference_date%29#Computing)页面。
## 错误
有关 Elastic Transcoder 异常和错误消息的信息，请参阅 [处理 Elastic Transcoder 中的错误](error-handling.md)。
## 示例
### 示例请求
以下示例请求获取任务 ID 为 3333333333333-abcde3 的任务。
```
GET /2012-09-25/jobs/3333333333333-abcde3 HTTP/1.1
Content-Type: charset=UTF-8
Accept: */*
Host: elastictranscoder.Elastic Transcoder endpoint.amazonaws.com:443
x-amz-date: 20130114T174952Z
Authorization: AWS4-HMAC-SHA256
Credential=AccessKeyID/request-date/Elastic Transcoder endpoint/elastictranscoder/aws4_request,
SignedHeaders=host;x-amz-date;x-amz-target,
Signature=calculated-signature
```
### 示例响应
```
Status: 200 OK
x-amzn-RequestId: c321ec43-378e-11e2-8e4c-4d5b971203e9
Content-Type: application/json
Content-Length: number of characters in the response
Date: Mon, 14 Jan 2013 06:01:47 GMT
{
"Job":{
"Id":"3333333333333-abcde3",
"Inputs":[{
"Key":"cooking/lasagna.mp4",
"FrameRate":"auto",
"Resolution":"auto",
"AspectRatio":"auto",
"Interlaced":"auto",
"Container":"mp4",
"InputCaptions":{
"MergePolicy":"MergeOverride",
"CaptionSources":[
{
"Key":"scc/lasagna-kindlefirehd.scc",
"Language":"en",
"Label":"English"
},
{
"Key":"srt/lasagna-kindlefirehd.srt",
"Language":"fr",
"TimeOffset":"1:00:00",
"Label":"French"
}
],
}
"DetectedProperties":{
"Width":"1280",
"Height":"720",
"FrameRate":"30.00",
"FileSize":"5872000",
"DurationMillis":"1003000"
}
}],
"OutputKeyPrefix":"",
"Outputs":[
{
"Id":"1",
"Key":"mp4/lasagna-kindlefirehd.mp4",
"ThumbnailPattern":"mp4/thumbnails/lasagna-{count}",
"Rotate":"0",
"PresetId":"1351620000000-100080",
"Watermarks":[
{
"InputKey":"logo/128x64.png",
"PresetWatermarkId":"company logo 128x64",
}
],
"Duration":"1003",
"DurationMillis":"1003000",
"Width":"1280",
"Height":"720",
"FrameRate":"30.00",
"FileSize":"5872000",
"Status":"Progressing",
"StatusDetail":"",
"Captions":{
"CaptionFormats":[
{
"Format":"scc",
"Pattern":"scc/lasagna-{language}",
},
{
"Format":"srt",
"Pattern":"srt/lasagna-{language}",
},
{
"Format":"mov-text"
}
]
}
},
{
"Id":"2",
"Key":"iphone/lasagna-1024k",
"ThumbnailPattern":"iphone/th1024k/lasagna-{count}",
"Rotate":"0",
"PresetId":"1351620000000-987654",
"SegmentDuration":"5",
"Duration":"1003",
"DurationMillis":"1003000",
"Width":"1136",
"Height":"640",
"FrameRate":"30.00",
"FileSize":"4718600",
"Status":"Progressing",
"StatusDetail":"",
"AppliedColorSpaceConversion":"None"
},
{
"Id":"3",
"Key":"iphone/lasagna-512k",
"ThumbnailPattern":"iphone/th512k/lasagna-{count}",
"Rotate":"0",
"PresetId":"1351620000000-456789",
"SegmentDuration":"5",
"Duration":"1003",
"DurationMillis":"1003000",
"Width":"1136",
"Height":"640",
"FrameRate":"30.00",
"FileSize":"3508900",
"Status":"Complete",
"StatusDetail":""
}
],
"Playlists":[
{
"Format":"HLSv3",
"Name":"playlist-iPhone-lasagna.m3u8",
"OutputKeys":[
"iphone/lasagna-1024k",
"iphone/lasagna-512k"
]
}
],
"UserMetadata":
{
"Food type":"Italian",
"Cook book":"recipe notebook"
},
"PipelineId":"1111111111111-abcde1",
"Status":"Progressing",
"Timing":{
"SubmitTime":"1427212800000",
"StartTime":"1427212856000",
"FinishTime":"1427212875000"
}
}
}
```