Why Is MPEG-4 Still So Popular Today?

Despite the arrival of highly efficient video codecs like H.265 (HEVC) and AV1, MPEG-4—specifically its H.264/AVC variant—remains the global standard for video streaming, broadcasting, and recording. This article explores the key reasons behind its enduring dominance, focusing on universal hardware compatibility, low processing requirements, licensing advantages, and its deep integration into legacy digital infrastructure.

Universal Hardware Compatibility

The primary reason MPEG-4 (specifically H.264) remains dominant is its near-100% compatibility across all digital devices. Virtually every smartphone, tablet, computer, smart TV, gaming console, and web browser manufactured in the last fifteen years features built-in hardware decoding for this format.

While newer codecs like H.265 or AV1 offer superior compression, many older or budget-friendly devices lack the dedicated hardware to decode them. For content distributors, encoding video in MPEG-4 ensures that every single user can play the file instantly without lagging, stuttering, or requiring third-party software.

Lower Computational Requirements

MPEG-4 is computationally “lightweight” compared to its successors. Encoding and decoding newer formats like AV1 or HEVC requires immense processing power, which translates to:

• Higher Battery Consumption: Mobile devices drain their batteries much faster when decoding newer formats via software emulation.
• Increased Server Costs: For streaming platforms, encoding live video feeds into H.265 in real time requires expensive, high-end server hardware. MPEG-4 can be encoded quickly and cheaply on basic hardware.
• Faster Rendering Times: Content creators can export MPEG-4 files much quicker than highly compressed modern formats, streamlining production workflows.

Simplified Licensing and Royalties

The licensing landscape for newer video formats is notoriously complex and expensive. H.265 (HEVC), for example, is managed by multiple competing patent pools, making it costly and legally risky for software developers, browser creators, and hardware manufacturers to integrate.

While AV1 is royalty-free, it still lacks widespread hardware support. MPEG-4/H.264, on the other hand, has a well-established, highly predictable licensing structure through MPEG LA, and many of its foundational patents have expired, making it a safe and cost-effective choice for developers.

Legacy Infrastructure and Broadcaster Investment

Worldwide digital infrastructure is heavily built around MPEG-4. Cable networks, satellite television providers, security camera systems (CCTV), and enterprise video conferencing platforms have billions of dollars invested in hardware that only supports MPEG-4.

Upgrading these physical systems to support newer codecs would require replacing millions of cameras, set-top boxes, and servers. For many industries, the cost of upgrading hardware far outweighs the bandwidth savings offered by newer compression technologies.