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#786 Incorrect MPEG4 aspect ratio (4.615) for NTSC 16x9

Incorrect_result
open
nobody
5
2013-08-29
2013-08-28
cyang
No

To fix it change Line 408 of File_Mpeg4v.cpp
else if (aspect_ratio_info==0x05) PixelAspectRatio_Value=(float32)40/(float32)13;
to
else if (aspect_ratio_info==0x05) PixelAspectRatio_Value=(float32)40/(float32)33;
according to ISO 14496-2 Table 6-12 -- Meaning of pixel aspect ratio
0101 40:33 (525-type stretched for 16:9 picture)

Discussion

  • crapy typo!
    patch