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AM62A7-Q1: Encoder/decoder supported resolutions

Vinay S
Intellectual 365 points
Part Number: AM62A7-Q1
Other Parts Discussed in Thread: AM62A7

Hi,

We are testing AM62A7 EVM board with Linux BSP.

We wanted to know the maximum resolution supported by encoder/decoder

AM62A7 datasheet mentions below points

- Support for HEVC (H.265) Main profiles at
Level 5.1 High-tier
– Support for H.264 BaseLine/Main/High Profiles
at Level 5.2
– Support for up to 4K UHD resolution
(3840 × 2160)
• Clocking options supporting 240 MPixels/s,
120 MPixels/s, or 60 MPixels/s

HEVC Level 5.1 and H264 level 5.2 supports maximum of 4096x2160@60fps but since clocking options is limited to 240MPixels/s will the supported resolution be limited?

  • 0
    TI__Mastermind 28755 points

    Hi Vinay,

    On current SDK release, we have verified upto 4K resolution @ 30fps working with both HEVC and H.264 encode/decode. 

    Even 1080p @60fps works fine.

    Hope this helps.

    Best Regards,

    Suren

  • 0 in reply to Suren Porwar
    Intellectual 365 points

    Hi Suren,

    We tested encode and decode with 4k@30 and 4k@60fps using gstreamer and it is working properly.

    Used below gstreamer pipeline for testing

    4k@60fps encode:
    gst-launch-1.0 -v videotestsrc num-buffers=300 ! video/x-raw, width=3840, height=2160, framerate=60/1 ! v4l2h264enc ! filesink location=test.mp4

    4k@60fps decode:
    gst-launch-1.0 -v filesrc location=./test.mp4 ! h264parse ! queue ! v4l2h264dec capture-io-mode=dmabuf ! kmssink driver-name=tidss -v

    We wanted to know how the clocking options is calculated?

    and what is the clocking option for 1080p@60fps, 3840x2160@30fps, 3840x2160@60fps, 4096x2160@30fps and 4096x2160@60fps

  • 0 in reply to Vinay S
    TI__Mastermind 28755 points

    Vinay,

    As per my understanding

    4K @ 30 fps  = 3840x2160x30 = 240 MP/s and that's what we have published in the TRM

    So based on this calculation, you could calculate or break down for other resolutions.

    Best Regards,

    Suren

  • 0 in reply to Suren Porwar
    Intellectual 365 points

    Hi Suren,

    whether does this processor support 4K@60 fps encoding and decoding?

    Since pixel rate exceeds mentioned value in the TRM for 4k@60fps

  • 0 in reply to Vinay S
    TI__Mastermind 28755 points

    Vinay,

    As I mentioned on AM62A, 4K@30fps is what is supported. 4K@60fps would require clock ~500 MP/s and not supported.

    Best Regards,

    Suren