[theora] PSNR Drop at every I frame.

[S M RAO NALLAM]

Dear all,

i m using 1.0beta2 version of theora encoder for my production work.

i have encoded one QVGA stream at 300kbps stream with the following
configuration.

sharpness---------------------------0
noise_sensitivity------------------6
keyframe_frequency-------------64.

same stream has been decoded using theora decoder.

PSNR has been calculated for the decoded stream but the value of PSNR is
dropping drastically at each 64th frame.

can anybody please let me know why this is happening like this.

Regards,
Nallam.

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