videolan
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ffmpeg
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seems i guessed correctly (last 411 chroma block isnt scaled but cut and reordered) 

Originally committed as revision 1888 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-05-16 21:47:02 +00:00
parent 377ec88802
commit 62cf114b59
1 changed files with 6 additions and 6 deletions
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12
libavcodec/dv.c
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@ -476,12 +476,12 @@ static inline void dv_decode_video_segment(DVVideoDecodeContext *s,
ptr = pixels;
for(y = 0;y < 8; y++) {
/* convert to 411P */
c_ptr1 = c_ptr + linesize;
c_ptr1[0] = c_ptr[0] = (ptr[0] + ptr[1]) >> 1;
c_ptr1[1] = c_ptr[1] = (ptr[2] + ptr[3]) >> 1;
c_ptr1[2] = c_ptr[2] = (ptr[4] + ptr[5]) >> 1;
c_ptr1[3] = c_ptr[3] = (ptr[6] + ptr[7]) >> 1;
c_ptr += linesize * 2;
c_ptr1 = c_ptr + 8*linesize;
c_ptr[0]= ptr[0]; c_ptr1[0]= ptr[4];
c_ptr[1]= ptr[1]; c_ptr1[1]= ptr[5];
c_ptr[2]= ptr[2]; c_ptr1[2]= ptr[6];
c_ptr[3]= ptr[3]; c_ptr1[3]= ptr[7];
c_ptr += linesize;
ptr += 8;
}
} else {