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What are my assets converted to when it's uploaded?
What are my assets converted to when it's uploaded?
Written by Nabil Kanaan
Updated over a week ago

Video proxies

Resolutions: 2160p (4k), 1080p (HD), 720p, 540p, 360p
Codec: H.264/H.265 (HDR-only)
Format: MP4
Profile Level: Up to High at Level 5.2 H.264 and up to Main 10 at Level 5.1 for HEVC
Bitrate: 4K average max of 14Mbps, HD average max of 4Mbps, SD average max of 2.2Mbps
Framerate: same as the source
Interlaced videos: interlace videos are de-interlaced to playback on the web. The original interlaced video is available for download.
Color Space: Same as source, Rec.2100, Rec 2020 or P3 or 709 for HDR, Rec 709 for SDR

Audio proxies

Audio specs cover both audio-only and audio-video files
Codec: AAC
Format: MP4
Bitrate: 128 kbps
Channel layout: Stereo (single channel, see below)

Multichannel support does not support multiple audio tracks. Only the first track would be extracted when downmixing to a stereo file. Therefore, we recommend flattening it into one channel before uploading to

However, when multiple audio channels are sent as a stereo/3.1/5.1/ 7.1 channel layout on the same audio track, all channels will be played back in the player.

If a file has more than 8 channels, the transcode will not be able to play it back in, but the file will still be able to be downloaded and played locally.

Note: Channels 1-8 & 16 are supported, 9-15 are not supported.


Q: What about formats of other asset types? How are they converted?
A: Non-video and audio asset types are converted to PNG or JPEG

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