Unveiling IPMX: Pivotal Documents Molding the Path of Audio-Video over Internet Protocol
In a recent project, a customer has requested a new panel that will display a mix of digital signage and over-the-air content. The panel will feature an "L-bar" around the side and bottom for company announcements, and it's essential that it can handle HDCP-compliant content.
The project presents several challenges. For instance, the auditorium portion of the project requires Precision Time Protocol (PTP) due to the need to minimize latency for Image Magnification (IMAG) and some of the equipment uses AES67, which doesn't support asynchronous sources. Additionally, the older monitors in the project only support 4K30, falling short of the project's 4K60 specification.
To address these issues, the team is considering a gateway from an unfamiliar manufacturer, capable of frame rate conversion, as a potential solution. This gateway, thanks to NMOS IS-12, can enable direct adjustment of settings for scaling and frame rate conversion through a controller.
The auditorium portion of the project also introduces the Privacy Encryption Protocol (PEP), outlined in TR-10-13, which ensures multi-vendor, interoperable encryption for video, audio, and USB traffic. This is crucial for maintaining security and privacy in the project.
The project also involves upgrading and expanding an existing AV system, integrating legacy baseband equipment with new IPMX endpoints. In this real-world scenario, IPMX is used to facilitate this integration. NMOS IS-11, a connection negotiation capability within IPMX, allows for multicasting to various displays, including older monitors, helping to resolve the EDID-related headache caused by retaining several older monitors that are not slated for replacement.
IPMX is based on SMPTE ST 2110 and AES67 standards, making it an ideal choice for this project. The IPMX sender device supports TR-10-10 (draft available soon), which provides HDMI info frames over IP, further enhancing the project's capabilities.
A quick search reveals Wireshark dissectors for HKEP and IPMX RTCP sender reports, which aid in troubleshooting potential issues such as the audio and video being out of sync, leading to an investigation of potential issues with HDCP or the content mixer.
The development of IPMX is rooted in Video Services Forum (VSF) TR-10 and Advanced Media Workflow Association (AMWA) NMOS specifications. Notably, AMD, with its Versal™ and Zynq™ SoCs, has significantly contributed to the development of IPMX, as these platforms offer high integration and performance in video, graphics, and packet processing, optimizing professional multimedia systems and thus essential for the further development of AV-over-IP solutions.
In conclusion, IPMX introduces unprecedented capabilities in the AV-over-IP space, making it an ideal choice for complex projects like this one. The team is confident that with the use of IPMX, they can overcome the challenges posed by the project and deliver a successful outcome.
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