讀取預設 - Amazon Elastic Transcoder
Description (描述)請求回應錯誤範例

節省成本並獲得更多功能 AWS Elemental MediaConvert

MediaConvert 是一項較新的檔案型視訊轉碼服務，提供全方位的進階轉碼功能，按需費率從每分鐘 $0.0075 起。閱讀更多。

已經使用 Amazon Elastic Transcoder？ 遷移到 MediaConvert. 如需詳細資訊，請參閱此概觀，其中包含有關移轉程序的重要資訊以及其他資源的連結。

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。

讀取預設

Description (描述)

欲取得預設的詳細資訊，請將 GET 請求傳送到 /2012-09-25/presets/presetId 資源。

請求

Syntax (語法)

GET /2012-09-25/presets/presetId HTTP/1.1
Content-Type: application/json; 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
Content-Length: number of characters in the JSON string

請求參數

此操作接受下列請求參數。

Preset Id

您欲取得詳細資訊之預設的識別碼。

請求標頭

此操作僅使用所有操作常見的請求標頭。如需常見請求標頭的資訊，請參閱 HTTP 標頭內容。

請求主體

此操作沒有請求內文。

回應

Syntax (語法)

Status: 200 OK
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

{
   "Preset":{
      "Id":"preset identifier",
      "Type":"Custom|System",
      "Name":"preset name",
      "Description":"preset description",
      "Container":"flac|flv|fmp4|gif|mp2|mp3|mp4|mpg|mxf|oga|ogg|ts|wav|webm",
      "Audio":{
         "Codec":"AAC|flac|mp2|mp3|pcm|vorbis",
         "CodecOptions":{
            "Profile":"auto|AAC-LC|HE-AAC|HE-AACv2",
            "BitDepth":"8|16|24|32",
            "Signed":"Signed|Unsigned",
            "BitOrder":"LittleEndian"
         },
         "SampleRate":"auto|22050|32000|44100|48000|96000",
         "BitRate":"audio bit rate of output file in kilobits/second",
         "Channels":"auto|0|1|2",
         "AudioPackingMode":"SingleTrack|OneChannelPerTrack|
            OneChannelPerTrackWithMosTo8Tracks"
      },
      "Video":{
         "Codec":"gif|H.264|mpeg2|vp8|vp9",
         "CodecOptions":{
            "Profile":"baseline|main|high|0|1|2|3",
            "Level":"1|1b|1.1|1.2|1.3|2|2.1|2.2|3|3.1|3.2|4|4.1",
            "MaxReferenceFrames":maximum number of reference frames,
            "MaxBitRate":"maximum bit rate",
            "BufferSize":"maximum buffer size",
            "InterlacedMode":"Progressive|TopFirst|BottomFirst|Auto",
            "ColorSpaceConversionMode":"None|Bt709ToBt601|Bt601ToBt709|Auto",
            "ChromaSubsampling":"yuv420p|yuv422p",
            "LoopCount":"Infinite|[0,100]"
         },
         "KeyframesMaxDist":maximum frames between key frames,
         "FixedGOP":"true|false",
         "BitRate":"auto|video bit rate of output file in kilobits/second",
         "FrameRate":"auto|10|15|23.97|24|25|29.97|30|50|60",
         "MaxFrameRate":"10|15|23.97|24|25|29.97|30|50|60",
         "MaxWidth":"auto|[128,4096]",
         "MaxHeight":"auto|[96,3072]",
         "SizingPolicy":"Fit|Fill|Stretch|Keep|ShrinkToFit|ShrinkToFill",
         "PaddingPolicy":"Pad|NoPad",
         "DisplayAspectRatio":"auto|1:1|4:3|3:2|16:9",
         "Resolution":"width in pixelsxheight in pixels" <not recommended>,
         "AspectRatio":"auto|1:1|4:3|3:2|16:9" <not recommended>
         "Watermarks":[
            {
               "Id":"unique identifier up to 40 characters",
               "MaxWidth":"[16,Video:MaxWidth]px|[0,100]%",
               "MaxHeight":"[16,Video:MaxHeight]px|[0,100]%", 
               "SizingPolicy":"Fit|Stretch|ShrinkToFit",
               "HorizontalAlign":"Left|Right|Center",
               "HorizontalOffset":"[0,100]%|[0,Video:MaxWidth]px",
               "VerticalAlign":"Top|Bottom|Center",
               "VerticalOffset":"[0,100]%|[0,Video:MaxHeight]px",
               "Opacity":"[0,100]",
               "Target":"Content|Frame"
            }
         ]
      },   
      "Thumbnails":{
         "Format":"jpg|png",
         "Interval":"number of seconds between thumbnails",
         "MaxWidth":"auto|[32,4096]",
         "MaxHeight":"auto|[32,3072]",
         "SizingPolicy":"Fit|Fill|Stretch|Keep|ShrinkToFit|ShrinkToFill",
         "PaddingPolicy":"Pad|NoPad",
         "Resolution":"width in pixelsxheight in pixels",
         "AspectRatio":"auto|1:1|4:3|3:2|16:9"
      }
   }
}

回應標頭

此操作僅使用大部分回應常見的回應標頭。如需常見回應標頭的資訊，請參閱 HTTP 回應。

回應內文

取得預設時，會回傳您建立預設時指定的值。如需詳細資訊，請參閱 您在建立 Elastic Transcoder 預設集時指定的設定。

此外，Elastic Transcoder 會回傳下列值。

Id (自動) Id

預設的識別碼。您可使用此值來取得預設的設定，或將之刪除。

Type (自動) Type

預設是否為 Elastic Transcoder 提供的默認預設（System）或您定義的預設（Custom。

錯誤

如需 Elastic Transcoder 例外和錯誤訊息的詳細資訊，請參處理 Elastic Transcoder 中的錯誤。

範例

下列範例請求會取得預設 ID 為 5555555555555-abcde5 的預設。

請求範例

GET /2012-09-25/presets/5555555555555-abcde5 HTTP/1.1
Content-Type: application/json; 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
Content-Length: number of characters in the JSON string

回應範例

Status: 200 OK
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

{
   "Preset":{
      "Id":"5555555555555-abcde5",
      "Type":"Custom",
      "Name":"DefaultPreset",
      "Description":"Use for published videos",
      "Container":"mp4",
      "Audio":{
         "Codec":"AAC",
         "CodecOptions":{
            "Profile":"AAC-LC"
         },
         "SampleRate":"44100",
         "BitRate":"96",
         "Channels":"2"
      },
      "Video":{
         "Codec":"H.264",
         "CodecOptions":{
            "Profile":"main",
            "Level":"2.2",
            "MaxReferenceFrames":"3",
            "MaxBitRate":"",
            "BufferSize":"",
            "InterlacedMode":"Progressive",
            "ColorSpaceConversionMode":"None"
         },
         "KeyframesMaxDist":"240",
         "FixedGOP":"false",
         "BitRate":"1600",
         "FrameRate":"auto",
         "MaxFrameRate":"30",
         "MaxWidth":"auto",
         "MaxHeight":"auto",
         "SizingPolicy":"Fit",
         "PaddingPolicy":"Pad",
         "DisplayAspectRatio":"auto",
         "Watermarks":[
            {
               "Id":"company logo",
               "MaxWidth":"20%",
               "MaxHeight":"20%", 
               "SizingPolicy":"ShrinkToFit",
               "HorizontalAlign":"Right",
               "HorizontalOffset":"10px",
               "VerticalAlign":"Bottom",
               "VerticalOffset":"10px",
               "Opacity":"55.5",
               "Target":"Content"
            }
         ]
      }
      "Thumbnails":{
         "Format":"png",
         "Interval":"120",
         "MaxHeight":"auto",
         "MaxWidth":"auto",
         "SizingPolicy":"Fit",
         "PaddingPolicy":"Pad"
      },
   },
   "Warning":""
}