Uploading a Video: Supported Formats

mLevel supports all video formats supported by the Microsoft Azure Smooth Streaming platform.  While any video length is supported, we suggest keeping videos at 2 minutes or shorter to retain user-engagement.  High quality videos and longer videos may take several minutes to upload in the mLevel Mission Manager.  Videos are not downloaded to the device they are viewed on, they are streamed from the web.

Videos will scale differently depending on the screen size they are viewed on.  We support a wide range of mobile devices and tablets.  Using a video formatted at 720p is a safe bet.

When uploading your video file, you need to make sure the file name doesn't include any spaces.

Media Encoder Import Formats

Supported Video Codecs Supported Audio Codecs
  • H.264 (Baseline, Main, and High Profiles)
  • MPEG-1
  • MPEG-2 (Simple and Main Profile)
  • MPEG-4 v2 (Simple Visual Profile and Advanced Simple Profile)
  • VC-1 (Simple, Main, and Advanced Profiles)
  • Windows Media Video (Simple, Main, and Advanced Profiles)
  • AC-3 (Dolby Digital audio)
  • AAC (AAC-LC, HE-AAC v1 with AAC-LC core, and HE-AAC v2 with AAC-LC core)
  • MP3
  • Windows Media Audio (Windows Media Audio Standard, Windows Media Audio Professional, and Windows Media Audio Lossless)

Video File Formats

File Format File Extensions


.3gp, .3g2, .3gp2
Advanced Systems Format (ASF) .asf
Advanced Video Coding High Definition (AVCHD) [MPEG-2 Transport Stream] .mts, .m2ts
Audio-Video Interleaved (AVI) .avi
Digital camcorder MPEG-2 (MOD) .mod
Digital video (DV) camera file .dv
DVD transport stream (TS) file .ts
DVD video object (VOB) file .vob
Expression Encoder Screen Capture Codec file .xecs
MP4 .mp4
MPEG-1 System Stream .mpeg, .mpg
MPEG-2 video file .m2v
Smooth Streaming File Format (PIFF 1.3) .ismv
Windows Media Video (WMV) .wmv

Audio File Formats

File Format File Extensions
AC-3 (Dolby Digital) audio .ac3
Audio Interchange File Format (AIFF) .aiff
Broadcast Wave Format .bwf
MP3 (MPEG-1 Audio Layer 3) .mp3
MP4 audio .m3A
MPEG-4 audio book .m4b
WAVE file .wav
Windows Media Audio .wma

Media Encoder Export Formats

*All video in mLevel is exported using the Smooth Streaming File Format.  Additional formats listed at the link above are not supported.

File Format Video Codec Audio Codec
Smooth Streaming File Format (PIFF 1.1) (.ismv; .isma) VC-1 (Advanced Profile) H.264 (High, Main, and Baseline Profile) Windows Media Audio Standard, Windows Media Audio Professional


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