Provide transcriptions from URLs
In this guide you'll learn how to upload a video file and provide a transcription when both files are available from public URLs. The platform will retrieve the files directly from the specified URLs, so your application doesn't have to store them locally and upload the bytes. For a description of each field in the request and response, see the API Reference > Create a video indexing task page.
Prerequisites
- You’re familiar with the concepts that are described on the Platform overview page.
- You’ve created at least one index, and the unique identifier of your index is stored in a variable named
INDEX_ID
. For details, see the Create indexes page. - Your transcription must be in the SRT or VTT format.
- Your video must meet the following requirements:
- Video resolution: must be greater or equal than 360p and less or equal than 4K.
- Duration: must be between 4 seconds and 2 hours (7,200s).
- File size: must not exceed 2 GB.
If you require different options, send us an email at [email protected]. - Audio track: If the
conversation
indexing option is selected, the video you're uploading must contain an audio track.
Note
For consistent search results, Twelve Labs recommends you upload 360p videos.
Procedure
-
Declare the
/tasks
endpoint:TASKS_URL = f"{API_URL}/tasks"
const TASKS_URL = `${API_URL}/tasks`
-
To provide a transcription file, you must set the
provide_transcription
parameter totrue
, and specify the index ID, the language of your video, and the URLs of your video and transcription file. If you're using Python, declare a dictionary nameddata
and use it to store all the required parameters. If you're using Node.js, declare a variable namedformData
of typeFormData
and use it to store all the required parameters.data = { "provide_transcription": True, "index_id": INDEX_ID, "language": "en", "video_url": "<YOUR_VIDEO_URL>", "transcription_url": "<YOUR_TRANSCRIPTION_URL>" }
let formData = new FormData() formData.append('provide_transcription', 'true') formData.append('index_id', INDEX_ID) formData.append('language', 'en') formData.append('video_url', '<YOUR_VIDEO_URL>') formData.append('transcription_url', '<YOUR_TRANSCRIPTION_URL>')
-
Upload your video. Call the
/tasks
endpoint and store the result in a variable namedresponse
:response = requests.post(TASKS_URL, headers=headers, data=data)
let config = { method: 'post', url: TASKS_URL, headers: headers, data : formData } let resp = await axios(config) let response = await resp.data
-
Store the ID of your task in a variable named
TASK_ID
and print the status code and the response:TASK_ID = response.json().get("_id") print (f"Status code: {response.status_code}") pprint (response.json())
const TASK_ID = response._id console.log(`Status code: ${resp.status}`) console.log(response)
-
(Optional) You can use the
GET
method of the/tasks/{_id}
endpoint to monitor the indexing process. Construct the URL for retrieving the status of your video indexing task based on theTASK_ID
variable you’ve declared in the previous step, and wait until the status shows asready
:TASK_STATUS_URL = f"{API_URL}/tasks/{TASK_ID}" while True: response = requests.get(TASK_STATUS_URL, headers=headers) STATUS = response.json().get("status") if STATUS == "ready": print (f"Status code: {STATUS}") pprint (response.json()) break time.sleep(10)
const TASK_STATUS_URL = `${API_URL}/tasks/${TASK_ID}` config = { method: 'get', url: TASK_STATUS_URL, headers: headers, } let STATUS do { resp = await axios(config) response = await resp.data STATUS = response.status if (STATUS !== 'ready') await new Promise(r => setTimeout(r, 10000)) } while (STATUS !== 'ready') console.log(`Status code: ${STATUS}`) console.log(response)
The output should look similar to the following one:
Status code: 200 { "_id": "6391c89afb14854546891276", "created_at": "2022-12-08T11:20:58.859Z", "estimated_time": "2022-12-08T11:34:54.585Z", "index_id": "6391c88bfb14854546891275", "metadata": { "duration": 810.84, "filename": "best-racing-moments.mp4", "height": 480, "width": 854 }, "status": "ready", "type": "index_task_info", "updated_at": "2022-12-08T11:34:50.474Z", "video_id": "6391c8a669ff3402ec515aba" }
Note
For details about the possible statuses, see the API Reference > Tasks page.
Updated 11 months ago