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multiple reference frame

1330hayacool7102
Guru 10655 points


by checking http://en.wikipedia.org/wiki/Reference_frame_(video)

I found that the maximum number of concurrent reference frames supported by H.264 is 16.

Q1. what's the maximum reference frame could be referred in rdk3.0

  • 0
    TI__Guru 59700 points

    In DVR RDK encoder supports single reference frame.

    Decoder supports upto 16 frames. The number of output buffers in decoder link should be numRefFrames + 4.

  • 0 in reply to Badri Narayanan
    Guru 10655 points

    In DVR RDK encoder supports single reference frame.

    - did you mean only one referrence frame is supported in encoder?

    Decoder supports upto 16 frames. The number of output buffers in decoder link should be numRefFrames + 4.

    -did you mean the default referrence frame in decoder is 4 and we can adjust the numberRefFrames to maximum value 12?

  • 0 in reply to 1330hayacool7102
    TI__Guru 59700 points

    Jack1234 said:
    - did you mean only one referrence frame is supported in encoder?

    Yes in DVR RDK we support only single reference frame. B-frame encoding is not supported.

     

    Jack1234 said:
    -did you mean the default referrence frame in decoder is 4 and we can adjust the numberRefFrames to maximum value 12?

    No , Default for decoder is 1 reference frame. Application has to ensure number of decoder output buffers is greater than the number of reference frames used in the stream and set the decPrm numBufPerCh parameter correctly.No other configuration is required.