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H.265 Ambarella SoCs for action cams.

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  • H.265 Ambarella SoCs for action cams.

    Now (by the end of 2016) we have two 4K30-capable H.264 solutions: A9 and A12, which are normal and light versions of Ambarella S2 chip correspondingly.

    What are we going to get next? 4K60 mode with H.264 encoding will produce massive 100+Mbps video stream increasing hardware requirements beyond acceptable level for low- and mid- end action camera markets. So switching to more efficient video compression seems to be logical in the near future. H.265 provides x2 lower bitrate comparing to H.264 at the same quality level.

    Let's summarize what information about H.265-capable Ambarella products is known at the moment:

    S3-series SoCs:

    Ambarella H12 (aka A11 and H1)
    specs:
    • 1.2 GHz dual-core ARM® Cortex®-A9 CPU with 1 MByte full-speed L2 cache
    • 28nm technology
    • H.265 (HEVC) Main Profile encoding up to 4Kp30 video with support for Ambarella SmartHEVC™ low-bitrate streaming enhancements
    • H.264 (AVC) Baseline/Main/High Profile Level 5.2 encoding up to 4K Ultra HD resolution at 60 frames per second
    • Up to 64-*Megapixel sensor resolution
    • Multi-exposure HDR processing up to 4Kp30
    • Enhanced Electronic Image Stabilization (EIS) with rolling shutter correction
    • DDR4/DDR3/DDR3L support, gigabit Ethernet, USB 2.0 host (4G/LTE supported) and device, HDMI 2.0, SDXC SD Card, and dual sensor interfaces

    S5-series SoCs:


    Ambarella H2
    specs:
    • 1.2 GHz quad-core ARM® Cortex®-A53 64-bit CPU
    • 14 nm technology (power consumption less than 1.4W @ 4K30 encoding)
    • H.265/HEVC Main/Main10 Profile Level 5.1 encoding up to 4Kp60 with SmartHEVC™ low-bitrate streaming
    • H.264/AVC Baseline/Main/High Profile Level 5.1 encoding up to 4Kp120 or 8Kp30
    • 10-bit HDR video processing
    • Multi-imager support for up to four 4K sensors with stabilization, de-warp and image stitching
    • USB 3.0 connectivity
    Last edited by nutsey; 01-05-2017, 06:02 PM.
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  • #2
    cool. h265 (hevc) is badass! lower bitrate and smaller file size but keeping quality and resolution are all great! but i think much higher computational power is needed to render it smoothly, and without poor quality. once i tried to render 20 minutes of h265 as 2.5k in Powerdirector 14 on my AMD FX 8-core (really 4-core / 4 threads) 64bit 3Ghz just using software based encoding, and it would have taken 2 hours to finish. I halted it. hehe.
    Is there no GPU component in either of those SoC's ? or is that not really necessary ?

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    • #3
      In fact, I already mentioned about H.265-capable action cams based on Hisilicon Hi3516 ( here and here ). Those chips are much weaker in CPU power and they still can encode 1080p60 or 2K30 with H.265.

      I believe, there is no need in GPU for action cams.
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      • #4
        Ambarella presented its new camera SoCs. I suppose these chips are among S5 family.

        Click image for larger version  Name:	H22-Final_sm.jpg Views:	1 Size:	33.4 KB ID:	1639
        Ambarella H22
        basic specs:
        • 1.2 (1.0 for H22S) GHz quad-core ARM® Cortex®-A53 64-bit CPU
        • 14 nm technology
        • Fast Boot ThreadX / Linux Dual OS
        • Low power consumption
        • H.265/HEVC and H.264/AVC encoding up to 4K60 and 1080p120
        • Advanced 3D EIS stabilization up to 4K30 mode with 6-axis correction (translational, pitch, yaw, and roll) and shutter correction
        • HDR support up to 4K30 mode
        Click image for larger version  Name:	H3-Final_sm.jpg Views:	1 Size:	23.0 KB ID:	1640
        Ambarella H3
        basic specs (note there is no H.265 support stated):
        • Quad-core ARM® Cortex®-A53 64-bit CPU with NEON
        • H.264/AVC encoding up to 8K30 or 2 4K60 streams
        • Advanced EIS stabilization up to 4K60 resolution
        • 10-bit HEVC High Dynamic Range (HDR)
        Last edited by nutsey; 03-28-2017, 09:28 AM.
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        • #5
          Click image for larger version

Name:	CV22-small.jpg
Views:	264
Size:	10.3 KB
ID:	8704
          Ambarella CV22 SoC Brief PDF

          Specs:
          • Quad-core ARM® Cortex™-A53 up to 1.2 GHz
          • 10-nm low-power CMOS process
          • CVflow™ vector processor with CNN/DNN (Neural Network) algorithms
          • 800+ MPixels/s input rate (4k60 requires ~500)
          • H.265 (HEVC) and H.264 (AVC) video compression up to 4Kp60+

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