# MPEG-4 video profile ## Overview - Containing profile atom: Track (video), movie - `part-ID`: `0x20202020` (universal feature) - `feature-code`: ’`m4vp'` - `feature-value`: Unsigned `int(32)` where least significant 8 bits hold the `profile_and_level_indication` from the `visual_object_sequence`, as defined in specification ISO/IEC 14496-2, retrieved from the video parameters for the MPEG-4 video codec description. The top 24 bits must be set to `0`. ## Feature Values The least significant 8 bits hold the value. The most significant 24 bits of the feature value should be set to `0`. ## Writer Responsibilities A writer of the MPEG-4 video profile feature should record the 8 bits corresponding to the `profile_and_level_indication` from the `visual_object_sequence`, as defined in specification ISO/IEC 14496-2, found in the video parameters encoded in the esds of the MPEG-4 video codec sample description (with QuickTime codec type `'mp4v'`). > Note: A writer that records the MPEG-4 video profile feature is encouraged also to write the QuickTime Video Codec Type feature. ## Feature Value Algorithm The feature value is the `profile_and_level_indication` from the `visual_object_sequence`, as defined in specification ISO/IEC 14496-2, retrieved from the video parameters for the MPEG-4 video codec description. ## Reader Responsibilities A reader of this feature code should compare the recorded value with the set of profiles and levels supported by the reader. ## Comments This feature may be present only if MPEG-4 video is used. Normally, the video codec type profile entry will also record that MPEG-4 video is present, unless no codec types are present (when, for example, an exhaustive list cannot be formed). --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)