AJA - 'BRIDGE LIVE 12G-4 Turnkey System'
High Density SDI/IP StreamingThe AJA BRIDGE LIVE 12G-4 Turnkey System is a high-density, broadcast-quality, low-latency solution designed for flexible real-time UltraHD and HD video encoding, decoding, and transcoding across diverse IP and SDI workflows. Featuring up to four bidirectional 12G-SDI ports in a compact 1RU chassis, BRIDGE LIVE 12G-4 empowers professionals to manage synchronous multi-channel video contributions, REMI, direct streaming, remote collaboration, and multi-format delivery with exceptional reliability and performance. Developed in collaboration with Comprimato, this turnkey platform supports the latest industry-standard IP codecs and protocols, making it a versatile choice for demanding live broadcast, cloud, and OTT applications.
BRIDGE LIVE FAMILY I/O Overview
BRIDGE LIVE familyThe BRIDGE LIVE family supports the most widely used IP video compression schemes and transport protocols to solve your workflow needs. The BRIDGE LIVE family supports conversion between SDI and numerous IP video solutions, as well as pure IP conversion and distribution workflows.
Transport, Containers, And Protocols
Configured to your workflowBRIDGE LIVE can be configured to meet your requirements, whether it’s low-latency or high-quality signal delivery. BRIDGE LIVE gives you the tools to move content and deliver according to your workflow needs.
BRIDGE LIVE supported Protocols• HLS
• RTP
• RTMP
• RTMPS (output)
• SRT
• UDP
• MPTS (input)
• JPEG 2000 (VSF-TR01)
• JPEG XS (VSF-TR07)
BRIDGE LIVE supported Transport Formats• MPEG-TS
• NDI®
• AVC-TS
• Fragmented MP4
BRIDGE LIVE supported Audio Formats• AAC-LC (ADTS, LATM)
• AAC-HE v1& v2 (ADTS, LATM)
• AC3
• E-AC3 (input)
• Dolby-E Pass-through
• MPEG-2 Audio
• NDI (uncompressed float)
• Uncompressed PCM (multi-channel)
Supported Encodes/Decodes
encoding and decodingBRIDGE LIVE supports the following configurations for encoding and decoding between SDI and streaming formats as standard. Multiple streams, formats, and destinations can be derived from a single SDI input.
NDI• 8-bit or 10-bit
• 4:2:2
• BRIDGE LIVE 12G-4: Up to 4x 30p UltraHD encode/decode to/from SDI
• BRIDGE LIVE 3G-8: Up to 8x simultaneous 60p HD encode/decode to/from SDI
• NDI Inputs can be received, transcoded, and output as IP Video Streams
• IP Video Inputs can be received, transcoded, and output as NDI Streams, up to UltraHD resolution
H.265 (HEVC)• 8-bit or 10-bit
• 4:2:0
• BRIDGE LIVE 12G-4: Up to 2x 60p / 4x 30p UltraHD encode/decode to/from SDI
• BRIDGE LIVE 3G-8: Up to 8x simultaneous 60p HD encode/decode to/from SDI
• SRT, RTMP, and MPEG-TS protocol support
H.264 (AVC)• 8-bit or 10-bit
• 4:2:0 or 4:2:2
• Up to 2x simultaneous 60p 4:2:2, 10-bit UltraHD encode/decode or 4x 30p UltraHD encode/decode to/from SDI
• BRIDGE LIVE 12G-4: Up to 2x 60p / 4x 30p UltraHD encode/decode to/from SDI
• BRIDGE LIVE 3G-8: Up to 8x simultaneous 60p HD encode/decode to/from SDI
• SRT, RTMP, and MPEG-TS protocol support
H.262 (MPEG-2)• 8-bit
• 4:2:0
• BRIDGE LIVE 12G-4: Up to 4x simultaneous 30p/60i HD encode/decode to/from SDI
• BRIDGE LIVE 3G-8: Up to 8x simultaneous 30p/60i HD encode/decode to/from SDI
• SRT, RTMP, and MPEG-TS protocol support
NDI Encode/Decode/Transcode
NDIBRIDGE LIVE includes support for NDI (Network Device Interface), the high-quality, real-time, low-latency IP video standard developed by NewTek. BRIDGE LIVE can support up to 8x simultaneous 60p HD NDI encodes/decodes or 4x 30p UltraHD NDI encode/decode to/from SDI (BRIDGE LIVE model dependent). BRIDGE LIVE’s NDI functionality offers:
• SDI to NDI (encode)
• NDI to SDI (decode)
• IP Video Streams to NDI (transcode)
• NDI to IP Video Streams (transcode)
• Multiple Discovery Servers
Used in conjunction with BRIDGE LIVE's broad codec and protocol support, collaboration between geographically separated (remote) NDI facilities can be realised.
BRIDGE LIVE offers comprehensive NDI compatibility with third-party NDI software and hardware transmitters and receivers.
SRT Ready
SRTSRT is an open-source video transport protocol and technology stack that optimises streaming performance across unpredictable networks, providing secure streams and easy firewall traversal, bringing the best quality live video over unreliable networks. The SRT Alliance is a collaborative community of industry leaders and developers dedicated to achieving lower latency internet video transport by continuously improving open source SRT. Encryption built into the SRT protocol ensures secure streaming video content delivery with low latency and secure reliability.
BRIDGE LIVE supports SRT v1.5.3, enabling redundant stream support over an ISP to ensure hitless delivery of the originating source.
Metadata, HDR, Timecode, And Closed Captioning Support
Closed CaptioningBRIDGE LIVE fully supports Closed Captioning as well as additional metadata, which is often a neglected feature set compared to other encode/decode solutions.
BRIDGE LIVE supports:
• MPEG-2 ancillary packet support, SMPTE ST 2038
• SDR/HDR Transfer Characteristics, Colourimetry, Luminance via SDI
• SCTE-35/SCTE-104 Ad insertion markers
• CEA-608/CEA-708 Closed Captioning
• Timecode
• Embedding Closed Captioning/Subtitles into H.264 SEI messages
• Metadata pass-through
• Electronic Program Guide (EPG) on input
• SEI (supplemental enhancement information) timecode insertion
Simultaneous Bidirectional Encoding and Decoding
bidirectional encoding and decodingBRIDGE LIVE 12G-4 and BRIDGE LIVE 3G-8 support simultaneous bidirectional encoding and decoding from UltraHD (BRIDGE LIVE 12G-4 only), HD, and SD baseband sources. Both models support UltraHD from IP-based sources.
For example, with a pair of BRIDGE LIVE systems, a broadcast facility can receive three incoming encoded camera sources from a remote location and decode them back into SDI for editing and production while simultaneously providing program return to the remote location. This example shows 4-channel capability on BRIDGE LIVE 12G-4, while BRIDGE LIVE 3G-8 supports up to 8x HD channels.
Synchronous Multi-Channel Transport
synchronous relationshipsBRIDGE LIVE supports independent SDI source inputs and maintains synchronous relationships while transporting the content to end-point destinations. This functionality can take place between a pair of BRIDGE LIVE units for a synchronous end-to-end SDI workflow, often referred to as SDI backhaul or site-to-site SDI workflows.
BRIDGE LIVE’s synchronous multi-channel capability is also supported for cloud contribution, whereby a BRIDGE LIVE system can send signals to a Comprimato Live Transcoder cloud instance, thereby ensuring multi-source synchronicity for delivery to various CDNs, platforms, and cloud services as IP video.
Synchronous Multi-Channel Transport can be scaled up from a single BRIDGE LIVE pair to multiple pairs, enabling workflows where multiple BRIDGE LIVE systems can receive SDI and send SDI to multiple BRIDGE LIVE systems simultaneously.
HDR is also supported for end-to-end SDI workflows.
Hardware
bidirectional encoding and decodingBRIDGE LIVE 12G-4 supports up to 4x UltraHD 12G-SDI for UltraHD I/O in 1RU. Dual 10 GigE ports provide robust network connectivity, and dual power supplies offer added peace of mind.
BRIDGE LIVE 3G-8 supports up to 8x 3G-SDI simultaneously for multi-channel HD in 1RU. Dual 10 GigE ports provide network connectivity, and the system features dual power supplies.
Administration, monitoring, and access to both BRIDGE LIVE models are supported via either a network browser or local monitor via the device’s built-in DisplayPort. Indirect agnostic monitoring and automation are supported via both REST API and SNMP.
REMI Synchronous Multi-Channel Transport
Remote ProductionBRIDGE LIVE can take independent SDI source inputs and maintain their synchronous relationship while transporting the content to end-point destinations.
This functionality can take place between a pair of BRIDGE LIVE units for a synchronous end-to-end SDI workflow, often referred to as SDI backhaul or site-to-site SDI workflows. BRIDGE LIVE’s synchronous multi-channel capability is also supported for cloud contribution, whereby a BRIDGE LIVE system can send to a cloud instance of Comprimato Live Transcoder software for delivery to various platforms / cloud services as IP video.
