Thursday, February 20, 2020 - VideoMaster 6.14 introduces frame accurate synchronization between multiple outputs
Some use cases of the DELTACAST cards and FLEX solutions require addressing multiple outputs from a single content source, or addressing multiple outputs with temporally consistent content.
In this case, the application owns a set of frames – one for each output – which relate to the same instant, and needs the underlying software and hardware to guarantee that they will be emitted at the same time on the different output cables.
Today this is possible across multiple output channels located on the same card/module, as well as with multiple output channels located on separate cards/modules, and potentially plugged in different computers connected to the same network.
To achieve that, DELTACAST introduces a new working mode named “Frame accuracy”.
The frame accurate mode is available under two different forms :
- On FLEX solutions, the DELTA-gwy card implements a central clock for all its connected FLEX modules, and emits a tick on which they can slave their SDI, HDMI or DisplayPort output.
- On traditional SDI PCIe interface card, VideoMaster makes use of a genlock reference signal coupled with network synchronization to give rhythm to different output channels potentially located on different DELTACAST cards and even in different computers connected to the same network.
In both cases, VideoMaster ensures a fine-tuned control over the frame buffering and the output latency, so that the application can guarantee the exact emission time of any single frame.