Difference between MP4 and FLV

Key Difference: MP4 is based on Apple’s MOV file type. MPEG-4 Part 12 was developed from Apple’s MOV file and eventually resulted in MPEG-4 Part 14, which is the MP4 format. FLV is a file format used in Adobe Flash. FLV is a container that is used to deliver video over the internet.

MP4, an abbreviation for MPEG-4 Part 14, is based on Apple’s MOV file type. MPEG-4 Part 12 was developed from Apple’s MOV file and eventually resulted in MPEG-4 Part 14, which is the MP4 format (Also see: html5 video Vs. flash-video). The MP4 is a container format. This means that it can be used to store audio and/or video data. MP4 video and audio can also be streamed over the internet. As MP4 is a container format; it does not have a standard method of coding the audio or video information. Instead, it uses codec’s that dictate how the audio or video will be coded. Advanced Audio Coding (AAC) is the most popular codec for compressing audio in MP4 format. 

FLV is the abbreviation for Flash Video. There are two main file formats for Flash Video, FLV and F4V. FLV is usually used to deliver video on the internet. The file formats are supported in Adobe Flash Player. They were originally developed by Macromedia, and are currently under Adobe Systems. FLV is a container file format, similar to .avi or .mov. (Also see: avi Vs. mpeg). A container file specifies how the data streams inside it are organized. The actual organization and representation of the data streams are done by the various types of codecs. 

Also see: 

Difference between dvr and nvr

Difference between divx and xvid

Comparison between MP4 and FLV:

 

MP4

FLV

Definition

An MP4 is software for transmitting data streams to a receiving device in real time.

An FLV is usually used to deliver a video on the internet

Stands for

MPEG-4 Part 14

Flash Video

Developed

International Organization of Standardization

Macromedia, and are currently Adobe Systems

Format type

MP4 may not support MP3 audio format

FLV will support MP3 audio format

Filename extension

.m4a and .m4p

.flv

Usage

General

General

Supports

Variable bit rate audio

It does not have this capability

Subtitles

Uses ttxt, VobSubs, and BIFS

It does not support subtitles

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