---
title: QuickTime video codec type
framework: quicktime-file-format
role: article
role_heading: Article
path: quicktime-file-format/quicktime_video_codec_type
---

# QuickTime video codec type

## Overview

Overview Feature Values This is the four-character-code found in a video sample description. Examples: 'mp4v', 'jpeg'. Writer Responsibilities A writer of the QuickTime video codec type feature should record the four-character code corresponding to the QuickTime video format type or types also recorded in the video track’s sample descriptions. note: A writer that records the QuickTime Video Codec type for the 'mp4v' codec is encouraged also to write the MPEG-4 Video Profile feature. Feature Value Algorithm The feature value is the video codec type read from a QuickTime ImageDescription’s cType field. If there are multiple sample descriptions with different video codec types, multiple video codec type features should be recorded in the profile atom. Reader Responsibilities A reader of this feature code should compare the recorded value by an equality comparison (using =) with the format codes supported by the reader.

## See Also

### Setting features

- [Table of features](quicktime-file-format/table_of_features.md)
- [Maximum video bit rate](quicktime-file-format/maximum_video_bit_rate.md)
- [Average video bit rate](quicktime-file-format/average_video_bit_rate.md)
- [Maximum audio bit rate](quicktime-file-format/maximum_audio_bit_rate.md)
- [Average audio bit rate](quicktime-file-format/average_audio_bit_rate.md)
- [QuickTime audio codec type](quicktime-file-format/quicktime_audio_codec_type.md)
- [MPEG-4 video profile](quicktime-file-format/mpeg-4_video_profile.md)
- [MPEG-4 video codec](quicktime-file-format/mpeg-4_video_codec.md)
- [MPEG-4 video object type](quicktime-file-format/mpeg-4_video_object_type.md)
- [MPEG-4 audio codec](quicktime-file-format/mpeg-4_audio_codec.md)
- [Maximum video size in a movie](quicktime-file-format/maximum_video_size_in_a_movie.md)
- [Maximum video size in a track](quicktime-file-format/maximum_video_size_in_a_track.md)
- [Maximum video frame rate in a single track](quicktime-file-format/maximum_video_frame_rate_in_a_single_track.md)
- [Average video frame rate in a single track](quicktime-file-format/average_video_frame_rate_in_a_single_track.md)
- [Video variable frame rate indication](quicktime-file-format/video_variable_frame_rate_indication.md)