Veovera Software, a dedicated not-for-profit organization, has taken the lead in the mission to revamp the Real-Time Messaging Protocol (RTMP), aligning its specification with state-of-the-art technology. Backed by industry giants Adobe, YouTube, and Twitch, Veovera aims to modernize and enhance the RTMP specification, ensuring its compatibility with the latest advancements. The organization’s efforts reflect a commitment to improving the streaming experience and addressing the challenges posed by an outdated protocol. (Link to specs here)
Originally developed by Macromedia, RTMP emerged as a TCP-based protocol for high-speed transmission of audio, video, and data between servers and Flash players. It quickly became the standard for web-based streaming video and played a vital role in delivering Flash Video. While the delivery aspect of RTMP has diminished, its significance in ingestion remains strong. Many broadcasting platforms continue to rely on RTMP due to its speed and reliability, particularly for first-mile delivery. However, RTMP has not received any updates in over a decade, rendering it incompatible with current technologies such as support for modern codecs and HDR. This leaves companies dependent on RTMP with a crucial decision to make—should they invest in a costly transition to a different protocol or work towards enhancing the existing RTMP specification? The latter option presents a more manageable task and avoids disruptive overhauls.
It is remarkable that RTMP retains its relevance even after twenty-one years since its introduction alongside Flash Video. Veovera has taken the first step by incorporating support for AV1, VP9, and HEVC, and now focuses on defining additional capabilities promptly. Their objective is to refine the RTMP specification continuously, ensuring backward compatibility without disrupting the internet or existing tools. The lack of an organization to lead this effort and formally align the protocol within the industry has kept RTMP untouched for an extended period. The challenges involved are not solely technical but also encompass logistical aspects. Veovera aims to:
- Prevent protocol bifurcation and maintain a unified definition of RTMP.
- Enhance and modernize the RTMP/FLV specification by introducing new functionality.
- Collaborate with organization members and third-party solution providers to deliver implementations supporting the enhanced RTMP specifications.
- Engage with the RTMP community to promote and encourage RTMP enhancements.
Veovera emphasizes that there is substantial demand for this initiative across the industry, with solution providers relying on RTMP eagerly anticipating these enhancements. Despite its longevity, RTMP has remained relevant, having been employed by numerous longstanding streaming services. Even today, major platforms and services such as Google, YouTube, Twitch, PlayStation, Meta, OBS, FFmpeg, VideoLAN, TikTok, and others incorporate RTMP into their workflows.
Veovera has already enhanced the RTMP specification by introducing popular video codecs like VP9, HEVC, and AV1. Looking ahead to their roadmap for 2023, Veovera plans to further enhance video codec updates by integrating widely-used audio codecs. Key contenders for integration include Opus, FLAC, AC-3, and E-AC-3. Additionally, Veovera aims to specify more features for RTMP, including support for a seamless reconnect command and other capabilities. These enhancements will likely result in lower latency and improved content quality. Consequently, RTMP is poised to remain relevant for many years to come, serving as a reliable foundation for streaming content.
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