Aperi H.264 Encoder & Decoder Apps

Aperi H.264 Encoder & Decoder Apps

Aperi H.264 Encoder & Decoder Apps

Aperi H.264 Encoder & Decoder Apps


The Aperi H.264 App offers a unidirectional H.264 encoder/decoder supporting up to 2 channels of SD-SDI, HD-SDI, and 3G-SDI SMPTE compliant video signals. Each channel operates completely independent of the other, with support for video sources running in different formats and at different frame rates. The encoder automatically detects any valid video input on each channel and packetizes each H.264 compressed video signal into an elementary stream multiplexed with MPEG-1 Audio Layer II audio compression and ancillary data elementary streams to create an MPEG-2 compliant transport stream. This transport stream is encapsulated in a SMPTE 2022-2 compliant IP flow and aggregated into 10GbE interfaces on the microserver edge connector. The decoder receives an IP flow for processing, which removes the SMPTE 2022 encapsulation and converts the signal into a transport stream (TS). The stream is separated into video, audio, and ancillary elementary streams which are synchronized via a traffic clock that is closely matched to the encoder. The elementary video data is then decoded, producing an uncompressed video signal. The management interface is accessible via an open RESTful API in addition to an intuitive graphical user interface via integrated web server to configure and monitor the app directly through the API.

Technical Information

  • Detection of two unidirectional channels of SDI video compliant with SMPTE 259, SMPTE 292/274, and SMPTE 424/274.

  • H.264 transport stream mapping compliant with IEC 13818-1. ▪ YCrCb 4:2:2, 8-bit or 10-bit, and 4:2:0, 8-bit code streams.

  • Compressed ES rates of up to 150Mbps (I-frame only) and down to 5Mbps for IP frame GOP.

  • Per-channel encapsulation and de-encapsulation into RTP/UDP/IP packets per SMPTE 2022-2.

  • FEC insertion as per SMPTE 2022-1. ▪ Transparent transfer of ancillary data per video in accordance with SMPTE 2038 and TR-01.

  • Configurable to Baseline, Main, High, High 10, and High 4:2:2 H.264 profiles.

  • Ultra-low latency, configurable to less than 1ms.

  • Configurable GOP structure.

  • Automatic Dolby E audio pass-through.

  • MPEG-1 Audio Layer II audio compression up to 384 Kbps.

  • Dual presentation of packets via two separate physical interfaces for optimum per-channel hitless protection in compliance with SMPTE 2022-7.

  • Dual path IGMP V2 and V3 Multicast with fast leave.

  • Decoder PDV buffer for network jitter, configurable up to 200ms.

  • Decoders with and without B-frame Decoding available.

  • RESTful HTTP open media API, automatically discoverable, exposing all primitives.

  • Intuitive, automatically discoverable user interface via integrated web server.

Additional information

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