Is 2K DCI the same as consumer 1440p?

No. 2K DCI (2048×1080 flat or 2048×858 scope) is a professional cinema standard, while 1440p (2560×1440) is a consumer display resolution. They serve different purposes and have different aspect ratios.

Why do films use 2K DCI instead of 1080p?

DCI standards define theatrical projection formats with specific color spaces and aspect ratios. 2K DCI Scope (2048×858) matches how films are actually projected in theaters, while 1080p is a consumer format.

2K DCI Placeholder Video (2048×858)

Generate 2048×858 placeholder videos instantly via URL.2.39:1 aspect ratio, 10-second duration, MP4 H.264.

About 2K DCI Resolution

2048×858 represents 2K DCI (Digital Cinema Initiatives) Scope format, the professional cinema standard for 2.39:1 anamorphic content. DCI standards define theatrical projection formats, and 2K Scope is widely used in digital cinema projectors worldwide. The resolution provides a balance between file size and quality for theatrical distribution, with 4K DCI reserved for premium presentations. Streaming services often master content at 2K DCI before encoding for home delivery.

Video Preview

Direct URL

Copy this URL to use your 2K DCI placeholder video:

https://placeholdervideo.dev/2048x858

Technical Specifications

Resolution: 2048 × 858 pixels
Aspect Ratio: 2.39:1
Category: cinema
Duration: 10 seconds
Format: MP4 (H.264, AAC-LC silent audio)
Frame Rate: 30 fps
Approx. MP4 Size: 241 KB-434 KB
Generation Time: about 1-3 seconds uncached; repeat requests should hit cache
Video Codec: H.264 / AVC, Baseline profile, yuv420p
Audio Codec: AAC-LC silent stereo, 48 kHz

Copy-Paste Use Cases

Use this 2048×858 sample MP4 URL as a stable fixture in browser, end-to-end, and media pipeline tests. For broader examples, see the sample MP4 URL guide.

HTML Video

<video
  controls
  preload="metadata"
  width="2048"
  height="858"
  poster="https://placeholdervideo.dev/poster/2048x858"
>
  <source src="https://placeholdervideo.dev/2048x858" type="video/mp4" />
</video>

Playwright / Cypress

// Playwright: assert the browser sees real video metadata.
const metadata = await page.locator('video').evaluate((node) => {
  const video = node as HTMLVideoElement
  video.src = 'https://placeholdervideo.dev/2048x858'
  video.load()
  return new Promise<{ width: number; height: number; duration: number }>((resolve) => {
    video.addEventListener('loadedmetadata', () => {
      resolve({
        width: video.videoWidth,
        height: video.videoHeight,
        duration: Math.round(video.duration)
      })
    }, { once: true })
  })
})

expect(metadata).toEqual({ width: 2048, height: 858, duration: 10 })

// Cypress: attach the same fixture URL in an existing player test.
cy.get('video')
  .invoke('attr', 'src', 'https://placeholdervideo.dev/2048x858')
  .then(() => cy.get('video')[0].load())

curl / ffprobe

curl -L -o placeholder-2048x858.mp4 https://placeholdervideo.dev/2048x858

ffprobe -v error \
  -select_streams v:0 \
  -show_entries stream=codec_name,width,height,pix_fmt \
  -show_entries format=duration \
  -of json placeholder-2048x858.mp4

Response Data

Content-Type	video/mp4
Cache-Control	public, max-age=86400, immutable
Accept-Ranges	bytes
Access-Control-Allow-Origin	*
X-RateLimit-Limit	60 standard / 10 heavy per minute

Browser compatibility: Chrome, Edge, Safari, Firefox, iOS Safari, Android Chrome, HTML5 video players such as video.js and Plyr.

When to Use 2048×858

Use 2048×858 placeholders when developing tools for cinema post-production, theatrical distribution systems, or streaming platforms that handle DCI-mastered content. The resolution is relevant for testing how theatrical content translates to home viewing, as many films are mastered at 2K DCI before being encoded for streaming.

Integration Examples

HTML

<video src="https://placeholdervideo.dev/2048x858" width="800" height="335" controls></video>

JavaScript Fetch

fetch('https://placeholdervideo.dev/2048x858')
  .then(res => res.blob())
  .then(blob => {
    const url = URL.createObjectURL(blob)
    document.querySelector('video').src = url
  })

cURL

curl -O https://placeholdervideo.dev/2048x858

Technical Considerations

2K DCI Scope contains 1.76M pixels, requiring bitrates around 4-6 Mbps for theatrical quality. The resolution uses the DCI color space (P3) in professional workflows, though web delivery typically converts to Rec.709. Hardware decode is fully supported, though the unusual aspect ratio may require special handling in some players.

Common Questions

Is 2K DCI the same as consumer 1440p?: No. 2K DCI (2048×1080 flat or 2048×858 scope) is a professional cinema standard, while 1440p (2560×1440) is a consumer display resolution. They serve different purposes and have different aspect ratios.
Why do films use 2K DCI instead of 1080p?: DCI standards define theatrical projection formats with specific color spaces and aspect ratios. 2K DCI Scope (2048×858) matches how films are actually projected in theaters, while 1080p is a consumer format.

Related Guides

Learn more about generating videos programmatically in the API documentation.