Our video player’s default aspect ratio is 16:9. We recommend you upload a file that exactly matches one of the following 16:9 resolutions:
To get the best results, we recommend you encode your file using the H264 video codec and the AAC audio codec within an MP4 container.
We recommend a bit-rate (data-rate) of 5000kbps. If you upload a file with a higher bit-rate, it will simply take longer to upload and will normally have no visible gain in quality.
If your video is interlaced, please deinterlace it before uploading. For example if your file is 1080i60, it should be deinterlaced to 1080p30 (30 progress frames, as opposed to 60 interlaced frames).
Please do not add black borders (letterboxing or pillarboxing) to your video file before you upload it.
We then generate a range of renditions from your uploaded video, making a combination of MP4, HLS and/or DASH outputs. Our default encoding profile outputs different bitrates for each, ranging from a low quality - for slower connections - up to a HD-quality. Since our player uses Adaptive Bitrate Streaming, the quality of the video varies depending on the speed of the viewer’s connection. This happens automatically and seamlessly, switching to a higher quality version if their connection is determined as being fast enough to support it.