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Everything About Video

You can learn more about video file sizes here:

http://vimeo.com/help/compression

Codec: H.264

A codec is a format in which your video will be encoded. For best results we recommend using H.264. If you’re uploading High Definition (HD) video, choose the High Profile H.264 setting.

Advanced H.264 settings: To make your uploads extra smooth, choose the following advanced settings whenever possible.

  • Closed GOP
  • CABAC (to reduce your file size)

Frame rate: 24, 25, or 30 FPS (Constant)

If you know the frame rate of your footage, it's best to encode your final video at the same frame rate. However, if your footage exceeds 30 FPS (frames per second), you should encode your video at half that frame rate. For example, if you shot at 60 FPS, you should encode your final video at 30 FPS. If you're uncertain what frame rate you shot at, set your frame rate to either "Current" or 30 FPS. If there is an option for keyframes, choose the same value you used for frame rate. Important: Always choose "constant" frame rate instead of "variable" frame rate.

Bit rate: 2,000 – 5,000 kbit/s (SD) / 5,000 – 10,000 kbit/s (720p HD) / 10,000 – 20,000 kbit/s (1080p HD)

Bit rate (aka data rate) controls both the visual quality of the video and its file size. In most video editors, this is measured in kilobits per second (kbit/s). When you have the option, choose a “variable” bit rate and set the target to at least 2,000 kbit/s for standard definition (SD) video or 5,000 kbit/s for HD. 

Resolution: 640 pixels wide (SD) or 1280 pixels wide (HD)

Common resolutions for SD video include 640 x 480 px (4:3 aspect ratio) and 640 x 360 px (16:9 aspect ratio). The most common setting for HD video is 1280 x 720 px (16:9 aspect ratio). 

 

Format                                             Resolution                                     Bit rate

Standard Definition (SD)            
4:3 aspect ratio

640 x 480 px 2,000 – 5,000 kbit/s

Standard Definition (SD) 
16:9 aspect ratio

640 x 360 px 2,000 – 5,000 kbit/s

720p HD Video
16:9 aspect ratio

1280 x 720 px 5,000 – 10,000 kbit/s

1080p HD Video
16:9 aspect ratio

1920 x 1080 px                   10,000 – 20,000 kbit/s
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    Richard Jokela

    Nice

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