By Jonathan Abrams
My interest in BoxCast originated with their social media publishing capabilities (Facebook Live,
YouTube Live, Twitter). I met with Gordon Daily (CEO/co-founder) and Sam Brenner (VP, marketing) during this year’s NAB Show.
BoxCast’s focus is on end-to-end live streaming and simplifying the process through automation. At the originating, or transmit (XMT), end is either a physical encoder or a software encoder. The two physical encoders are BoxCaster and BoxCaster Pro. The software encoders are Broadcaster and Switcher (for iDevices). The BoxCaster can accept either a 1080p60 (HDMI) or CVBS video input. Separate audio can be connected using two RCA inputs. The BoxCaster Pro ($990, shipping Q3) can accept a 4Kp60 input (12G-SDI or HDMI 2.0a) with High Dynamic Range (HDR10). If you are not using embedded audio, there are two combination XLR/TRS inputs.
Both the BoxCaster and BoxCaster Pro use the H.264 (AVC) codec, while the BoxCaster Pro can also use the H.265 (HEVC) codec, which provide approximately 2x improvement compared to H.264 (AVC). BoxCast is using Amazon Web Services (AWS) as its cloud. The encoder output is uploaded to the cloud using the BoxCast Flow protocol (patent pending), which mitigates lost packets using content-aware forward error correction (FEC) to mitigate lost packets, protocol-diversity (UDP and/or TCP), adaptive recovery, encryption and link quality adjustment for bandwidth flow control. Their FEC implementation does not have an impact on latency. Upload takes place via either Ethernet or Wi-Fi (802.11ac, 2×2 MIMO). The cloud is where distribution and transcoding takes place using BoxCast’s proprietary transcoding architecture. It is also where you can record your event and keep it for either a month or a year, depending upon which monthly cloud offering you subscribe to. Both recordings and the streams can be encrypted using their custom, proprietary solution.
At the receiving end (RCV) is an embedded player if you are not using Facebook Live or YouTube Live.
Jonathan Abrams is Chief Technical Engineer at NYC’s Nutmeg Creative.