Captions and timers

Countdown timer overlay for video

A running countdown over the clip. It counts down from the clip's own length, so a 6 second clip starts at 6.

Shown on A cup of coffee

After · rendered from the request below

The entry

Use it as a clip's asset, on a track above the footage.

{
  "asset": {
    "type": "timer",
    "direction": "down",
    "format": "SS.SS",
    "style": {
      "font": "Inter",
      "size": 64,
      "weight": 800,
      "color": "#FFFFFF",
      "shadow": {}
    }
  },
  "transform": {
    "position": {
      "x": "18%",
      "y": "80%"
    }
  },
  "start": 0
}

Every setting and default is in the docs

Run it

The whole request behind the render above. Paste it as it is, or swap the file for your own.

job.ts
import { createClient, outputUrl } from "@rendobar/sdk";


const rb = createClient({ apiKey: process.env.RENDOBAR_API_KEY });


const job = await rb.jobs.run({
  type: "compose",
  params: {
    schemaVersion: 1,
    output: {
      format: "mp4",
      resolution: {
        width: 960,
        height: 540
      }
    },
    timeline: {
      tracks: [
        {
          clips: [
            {
              asset: {
                type: "video",
                src: "https://cdn.rendobar.com/compose/showcase/media/coffee.mp4"
              },
              start: 0
            }
          ]
        },
        {
          clips: [
            {
              asset: {
                type: "shape",
                shape: "rect",
                color: "#0B0F0DE8",
                radius: 0.18
              },
              transform: {
                size: {
                  width: "25%",
                  height: "20%"
                },
                position: {
                  x: "18%",
                  y: "78%"
                }
              },
              start: 0,
              length: 6
            }
          ]
        },
        {
          clips: [
            {
              asset: {
                type: "text",
                text: "STEEPING",
                style: {
                  font: "Inter",
                  size: 20,
                  weight: 700,
                  color: "#9BE7C4"
                }
              },
              transform: {
                position: {
                  x: "18%",
                  y: "71%"
                }
              },
              start: 0,
              length: 6
            }
          ]
        },
        {
          clips: [
            {
              asset: {
                type: "timer",
                direction: "down",
                format: "SS.SS",
                style: {
                  font: "Inter",
                  size: 64,
                  weight: 800,
                  color: "#FFFFFF",
                  shadow: {}
                }
              },
              transform: {
                position: {
                  x: "18%",
                  y: "80%"
                }
              },
              start: 0
            }
          ]
        }
      ]
    }
  },
});


console.log(outputUrl(job));

Install with npm i @rendobar/sdk. jobs.run() submits and waits, so it returns the finished job in one call.

terminal
curl https://api.rendobar.com/jobs \
  -H "Authorization: Bearer $RENDOBAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"type":"compose","params":{"schemaVersion":1,"output":{"format":"mp4","resolution":{"width":960,"height":540}},"timeline":{"tracks":[{"clips":[{"asset":{"type":"video","src":"https://cdn.rendobar.com/compose/showcase/media/coffee.mp4"},"start":0}]},{"clips":[{"asset":{"type":"shape","shape":"rect","color":"#0B0F0DE8","radius":0.18},"transform":{"size":{"width":"25%","height":"20%"},"position":{"x":"18%","y":"78%"}},"start":0,"length":6}]},{"clips":[{"asset":{"type":"text","text":"STEEPING","style":{"font":"Inter","size":20,"weight":700,"color":"#9BE7C4"}},"transform":{"position":{"x":"18%","y":"71%"}},"start":0,"length":6}]},{"clips":[{"asset":{"type":"timer","direction":"down","format":"SS.SS","style":{"font":"Inter","size":64,"weight":800,"color":"#FFFFFF","shadow":{}}},"transform":{"position":{"x":"18%","y":"80%"}},"start":0}]}]}}}'

Returns immediately with a job id. Poll GET /jobs/{id} or register a webhook rather than blocking on the request.

Questions

What does the timer clip do in compose?

A running countdown over the clip. It counts down from the clip's own length, so a 6 second clip starts at 6.

How do I add timer to a video with an API?

Send a compose job to the Rendobar API with this entry in the timeline: {"asset":{"type":"timer","direction":"down","format":"SS.SS","style":{"font":"Inter","size":64,"weight":800,"color":"#FFFFFF","shadow":{}}},"transform":{"position":{"x":"18%","y":"80%"}},"start":0}. Use it as a clip's asset, on a track above the footage. The request on this page is complete and renders as shown.

Footage and sound

More features

Subtitles Every line of a narration in one clip, timed to the words, styled once. Color A warm cinematic grade: the light pulled towards gold, contrast and color lifted a little, skin left believable. LUT A film grade from a LUT file: shadows toward teal, skin and highlights toward orange, the look a colourist hands over as a .cube. Looks The whole archive look in one word: sepia, grain, dust, scratches, projector flicker and a vignette together. Blur Knock the footage back so a title over it stays readable. Sharpen Crisp up footage that is slightly out of focus. Look at the jacket, the hair and the stone.

See all 117 features →