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DS90UB954-Q1EVM: Queries regarding FPS limitation in the MJPEG format when interfaced with the serializer (DS90UB953-Q1 EVM) and Deserializer (DS90UB954-Q1EVM).

Anonymous
Intellectual 275 points
Part Number: DS90UB954-Q1EVM

Tool/software:

Hi TI,
  In MJPEG format, we were able to achieve 120 FPS at a 640x480 resolution. However, when streaming 1920x1080 at 60 FPS, the stream is only at 45 FPS. For 3840x2160 at 30 FPS, we are receiving only 10 FPS. If we try to increase the FPS beyond this limit, we experience distortion in the stream. We would like to know the FPS limitations for streaming at 1920x1080 and 3840x2160 resolutions in MJPEG format.


  • 0
    TI__Guru** 108530 points

    Hello,

    The MJPEG data format has 24-bits/pixel hence you can't transfer higher resolution images with higher frame rate.

    Here is approximate calculation for the max supported frame rate. However, the results may vary based on your blanking and any embedded data.

    1920 x 1080 with 25% Blanking, you may transmit max 50 fps

    3840 x 2160 with 25% Blanking, you may transmit max 13 fps