On 9/3/2016 3:15 PM, Carl Eugen Hoyos wrote: > 2016-09-03 14:54 GMT+02:00 Timo Rothenpieler <t...@rothenpieler.org>: > >>>> + AV_WL16(&dstUV[2*x ], (t | (t << 8)) & 0xFFC0); >>> >>> Why is "& 0xFFC0" necessary? >>> (Same below.) >> >> Because P010 expects the 10 bits in the 10 most significant bit. >> I'm not 100% sure if the other 6 bits are undefined or 0, but all the >> other implementations treat them as zeroes. > > I suggest to remove this.
At least https://technet.microsoft.com/pt-br/library/bb970578.aspx describes the lower 6 bits as set to 0, so leaving them in an undefined state might have unintended sideeffects. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
