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The Alma Technologies H264-HP-E IP Core is an advanced ITU-T H.264 High profiles hardware only encoder. It supports real time encoding of 4:2:0 and 4:2:2 video streams, in 8-, 10- or 12-bit per component sample depths. The core is also available in ALL-Intra encoding configuration (H264-HPI-E) and supports the real time encoding of video streams up to Profile Level 5.2. The Constrained

Baseline and Main profiles encoding is also supported. The encoder accepts the uncompressed video data in planar, interleaved, or macroblock scan format. It outputs standalone, standard compliant, Annex B NAL byte stream. No post processing on the output stream, other than (for example) stroring, muxing or transmitting, is required. The output NAL byte stream can be decoded, as is, by any ITU-T H.264 compliant decoder that satisfies the Level requirements of the stream and conforms to the corresponding ITU-T H.264 profile.

Block Diagram

Tech Specs

Maturity Available


  • Full compliance to the ITU-T H.264 specification
  • High 10, High 10 intra, High 4:2:2, High 4:2:2 intra, High 4:4:4 (12 bit 4:2:2 or 4:2:0), and High 4:4:4 intra (12 bit 4:2:2 or 4:2:0) profiles encoding
  • Multi-format 4:2:0 and 4:2:2 YCbCr digital video input
  • 8-, 10- and 12-bit per component sample depth encoding
  • ITU-T H.264 Annex B compliant NAL byte stream output
  • Profile Level up to 5.2
  • No host CPU assisted, standalone operation 16 video lines algorthmic encoding latency
  • True H.264 compression efficiency and perceptually optimized Image Quality
  • Advanced Motion Estim
  • Advanced Intra predictionation
  • Error resilient encoding options
  • Smooth System Integration

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