#7 Boundary condition in mpeg2_movie

closed-fixed
nobody
None
9
2000-12-07
2000-12-06
No

Some of you may have noticed purple squares in mpeg2_movie's output. In fact, mpeg2_movie seems to have a boundary overflow. Any full black areas wrap into purple on P frames but not I frames.

Discussion

  • Heroine Virtual

    Heroine Virtual - 2000-12-06
    • priority: 5 --> 9
     
  • Nobody/Anonymous

    The boundary condition seemed to be caused by omitting the inverse transforms. The inverse transforms are not used for statistics but are required for predicting the next frame.

     
  • Heroine Virtual

    Heroine Virtual - 2000-12-07
    • status: open --> closed-fixed
     
  • Heroine Virtual

    Heroine Virtual - 2000-12-07

    The boundary condition seemed to be caused by omitting the inverse transforms. The inverse transforms are not used for statistics but are required for predicting the next frame.

     

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