本頁說明如何在 Transcoder API 資源中新增及查看標籤。標籤是鍵/值組合,可用來整理資源。您可以為個別資源加上標籤,然後根據標籤篩選資源。標籤的相關資訊會轉送至帳單系統,因此您可以依據標籤查看帳單費用明細。
您可以在建立轉碼器 API 工作和工作範本時新增標籤。如果您根據含有標籤的工作範本建立工作,該工作就會包含與工作範本相同的標籤。如要覆寫工作範本中的標籤,您可以直接在工作上指定標籤。
您可以使用 REST 或 RPC API 使用標籤。Google Cloud CLI 或 Google Cloud 控制台不支援標籤。
標籤規定
套用於資源的標籤必須符合下列規定:
- 每項資源可以有多個標籤,上限為 64 個。
- 每個標籤都必須是鍵/值組合。
- 鍵的長度必須至少為 1 個字元,最多 63 個字元,且不能空白。值可以空白,長度上限為 63 個半形字元。
- 鍵和值只能使用小寫字母、數字字元、底線和連字號。所有字元都必須使用 UTF-8 編碼,且可使用國際字元。
- 標籤的鍵在單一資源中不得重複,但您可以讓多個資源使用相同的鍵。
- 鍵的開頭必須是小寫字母或國際字元。
在工作中加入標籤
以下範例說明如何在建立新工作時加入標籤。例如,您可以使用標籤表示工作將在測試環境中使用。標籤的鍵為 environment
,值為 test
。
如要建立工作,請使用 projects.locations.jobs.create
方法。
使用任何要求資料之前,請先替換以下項目:
PROJECT_ID
:您在 IAM 設定中列出的 Google Cloud 專案 ID。LOCATION
:工作執行的位置。使用支援的地區之一。顯示地區us-central1
us-west1
us-west2
us-east1
us-east4
southamerica-east1
northamerica-northeast1
asia-east1
asia-northeast1
asia-northeast3
asia-south1
asia-southeast1
australia-southeast1
europe-west1
europe-west2
europe-west4
me-west1
me-central1
me-central2
STORAGE_BUCKET_NAME
:您建立的 Cloud Storage 值區名稱。STORAGE_INPUT_VIDEO
:Cloud Storage 值區中要轉碼的影片名稱,例如my-vid.mp4
。這個欄位應考量到您在桶中建立的任何資料夾 (例如input/my-vid.mp4
)。STORAGE_OUTPUT_FOLDER
:您要儲存已編碼影片輸出內容的 Cloud Storage 資料夾名稱。
如要傳送要求,請展開以下其中一個選項:
您應該會收到如下的 JSON 回應:
{ "name": "projects/PROJECT_NUMBER/locations/LOCATION/jobs/JOB_ID", "config": { "inputs": [ { "key": "input0", "uri": "gs://STORAGE_BUCKET_NAME/STORAGE_INPUT_VIDEO" } ], "editList": [ { "key": "atom0", "inputs": [ "input0" ], "startTimeOffset": "0s" } ], "elementaryStreams": [ { "videoStream": { "h264": { "widthPixels": 640, "heightPixels": 360, "frameRate": 30, "bitrateBps": 550000, "pixelFormat": "yuv420p", "rateControlMode": "vbr", "crfLevel": 21, "gopDuration": "3s", "vbvSizeBits": 550000, "vbvFullnessBits": 495000, "entropyCoder": "cabac", "bFrameCount": 3, "aqStrength": 1, "profile": "high", "preset": "veryfast" } }, "key": "video-stream0" }, { "videoStream": { "h264": { "widthPixels": 1280, "heightPixels": 720, "frameRate": 30, "bitrateBps": 2500000, "pixelFormat": "yuv420p", "rateControlMode": "vbr", "crfLevel": 21, "gopDuration": "3s", "vbvSizeBits": 2500000, "vbvFullnessBits": 2250000, "entropyCoder": "cabac", "bFrameCount": 3, "aqStrength": 1, "profile": "high", "preset": "veryfast" } }, "key": "video-stream1" }, { "audioStream": { "codec": "aac", "bitrateBps": 64000, "channelCount": 2, "channelLayout": [ "fl", "fr" ], "sampleRateHertz": 48000 }, "key": "audio-stream0" } ], "muxStreams": [ { "key": "sd", "fileName": "sd.mp4", "container": "mp4", "elementaryStreams": [ "video-stream0", "audio-stream0" ] }, { "key": "hd", "fileName": "hd.mp4", "container": "mp4", "elementaryStreams": [ "video-stream1", "audio-stream0" ] }, { "key": "media-sd", "fileName": "media-sd.ts", "container": "ts", "elementaryStreams": [ "video-stream0", "audio-stream0" ] }, { "key": "media-hd", "fileName": "media-hd.ts", "container": "ts", "elementaryStreams": [ "video-stream1", "audio-stream0" ] }, { "key": "video-only-sd", "fileName": "video-only-sd.m4s", "container": "fmp4", "elementaryStreams": [ "video-stream0" ] }, { "key": "video-only-hd", "fileName": "video-only-hd.m4s", "container": "fmp4", "elementaryStreams": [ "video-stream1" ] }, { "key": "audio-only", "fileName": "audio-only.m4s", "container": "fmp4", "elementaryStreams": [ "audio-stream0" ] } ], "manifests": [ { "fileName": "manifest.m3u8", "type": "HLS", "muxStreams": [ "media-sd", "media-hd" ] }, { "fileName": "manifest.mpd", "type": "DASH", "muxStreams": [ "video-only-sd", "video-only-hd", "audio-only" ] } ], "output": { "uri": "gs://STORAGE_BUCKET_NAME/STORAGE_OUTPUT_FOLDER/" } }, "state": "PENDING", "createTime": CREATE_TIME, "ttlAfterCompletionDays": 30, "labels": { "environment": "test" } }
如要新增多個標籤,請使用半形逗號分隔每個標籤。
依標籤列出及篩選
您可以列出資源,並依標籤篩選資源。舉例來說,在工作中加入標籤後,您可以列出特定位置的工作,並依據您新增的標籤進行篩選。以下範例會列出工作,並篩除不含 "environment": "test"
標籤的工作。
如要列出工作,請使用 projects.locations.jobs.list
方法。以下篩選器會附加至網址:?filter=labels.environment:test
。
使用任何要求資料之前,請先替換以下項目:
PROJECT_ID
:您的 Google Cloud 專案 ID。LOCATION
:工作的位置。使用支援的地區之一。us-central1
us-west1
us-west2
us-east1
us-east4
southamerica-east1
northamerica-northeast1
asia-east1
asia-northeast1
asia-northeast3
asia-south1
asia-southeast1
australia-southeast1
europe-west1
europe-west2
europe-west4
me-west1
me-central1
me-central2
如要傳送要求,請展開以下其中一個選項:
您應該會收到如下的 JSON 回應:
{ "jobs": [ { "name": "projects/PROJECT_NUMBER/locations/LOCATION/jobs/MY_JOB", "config": { .... }, "state": "PENDING", "createTime": CREATE_TIME, "ttlAfterCompletionDays": 30, "labels": { "environment": "test" } }, { "name": "projects/PROJECT_NUMBER/locations/LOCATION/jobs/MY_OTHER_JOB", "config": { .... }, "state": "SUCCEEDED", "createTime": CREATE_TIME, "startTime": START_TIME, "endTime": END_TIME, "ttlAfterCompletionDays": 30, "labels": { "environment": "test" } } ] }